fix error with browser view and levels

Reviewed-on: #7

.gitignore

@@ -43,3 +43,9 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+*.jks
+gradle.properties
+
+# Environment variables
+.env

README.md

@@ -1,74 +1,60 @@
-# WaniKani Kanji SRS
+# Hirameki SRS
 
-A **Spaced Repetition System (SRS) app for learning Japanese kanji** using WaniKani’s API.  
-Test your **kanji meanings, readings, and recognition skills** on your mobile device.
+A simple and effective **Spaced Repetition System (SRS) app** for learning Japanese kanji and vocabulary from your WaniKani account. This app is built with Flutter and uses the official WaniKani API to sync your unlocked items.
 
 ---
 
-## 📱 Features
+## Features
 
-- Quiz modes:
-  - **Kanji → English**: Guess the meaning of the kanji.
-  - **English → Kanji**: Match the meaning back to the kanji.
-  - **Reading**: Practice **on’yomi** and **kun’yomi** readings.
-- **Multiple-choice answers** with dynamic distractors.
-- **Score tracking** for correct and attempted answers.
-- Clean and responsive **Flutter UI** with animated kanji cards.
-- Fully **offline-capable** once deck is fetched and cached.
-- **Customizable themes** (dark mode by default).
-- Settings page to manage your **WaniKani API key**.
+This app is designed to be a lightweight and focused tool for reinforcing your WaniKani lessons on the go.
+
+- **Kanji & Vocabulary Quizzes**: Separate quiz sessions for both Kanji and Vocabulary items.
+- **Multiple Quiz Modes**: Test your knowledge in different ways:
+  - **Kanji/Vocab → English**: Guess the English meaning.
+  - **English → Kanji/Vocab**: Recall the Japanese characters from the English meaning.
+  - **Kanji Reading**: Practice the **On'yomi** and **Kun'yomi** for kanji.
+  - **Vocabulary Listening**: A special mode to test your listening comprehension by playing the audio and having you choose the meaning.
+- **SRS-Based Learning**: Questions are prioritized based on their SRS level, helping you focus on items that need the most practice.
+- **Browse Your Deck**: A dedicated screen to browse all your unlocked Kanji and Vocabulary.
+- **Paginated by Level**: Items in the browse screen are grouped by their WaniKani level and organized into swipeable pages.
+- **Quick Item Details**: Tap on a Kanji in the browse screen to see its readings, meanings, and level in a quick-view popup.
+- **Offline Access**: Once your decks are downloaded, you can quiz yourself anywhere, anytime.
+- **Simple & Clean UI**: A dark-themed, minimalist interface that keeps you focused on learning.
 
 ---
 
-## 🛠️ Tech Stack
+## Getting Started
 
-- **Flutter** for cross-platform mobile development (Android/iOS)
-- **Provider** for state management
-- **Shared Preferences** for storing API key and settings
-- **Dart** for core logic
-- **WaniKani API** for fetching kanji data
+Getting the app up and running is simple.
+
+### 1. Installation
+
+Clone the repository and install the dependencies:
+
+```bash
+git clone https://github.com/crylia/hirameki-srs.git
+cd hirameki-srs
+flutter pub get
+```
+
+### 2. WaniKani API Key
+
+To use the app, you need a WaniKani API key. You can generate one from your WaniKani account settings page under "API Tokens".
+
+The app will prompt you to enter your API key on first launch. If you need to change it later, you can do so from the settings screen.
+
+### 3. Run the App
+
+Connect a device or start an emulator and run the app:
+
+```bash
+flutter run
+```
 
 ---
 
-## ⚡ Installation
+## How to Use the App
 
-1. Clone the repository:
-
-`git clone https://git.crylia.de/Crylia/wanikani-kanji-srs.git`
-
-
-`cd wanikani_srs`
-
-
-2. Install dependencies:
-
-`flutter pub get`
-
-
-3. Run on a device/emulator:
-
-`flutter run`
-
-
-4. Set your **WaniKani API key** in the app’s settings to fetch your deck.
-
----
-
-## 🔧 Usage
-
-1. Open the app and enter your **WaniKani API key**.
-2. Select a quiz mode:
-   - Kanji → English  
-   - English → Kanji  
-   - Reading
-3. Tap on the multiple-choice options to answer.
-4. Your **score** is displayed at the bottom.
-5. Progress is updated automatically.
-
----
-
-## 📦 Build APK
-
-To generate a release APK:
-
-`flutter build apk --release`
+- **Start Screen**: From the main screen, you can jump into a "Kanji Quiz", "Vocabulary Quiz", or "Browse Items".
+- **Quiz Screen**: Choose your desired quiz mode at the top. The app will start presenting questions based on your SRS progress.
+- **Browse Screen**: Switch between Kanji and Vocabulary using the tabs at the top. Swipe left or right to navigate between levels. Use the scrollable navigator at the bottom to jump to a specific level quickly.

android/app/build.gradle.kts

@@ -1,12 +1,12 @@
 plugins {
     id("com.android.application")
-    id("kotlin-android")
+    id("org.jetbrains.kotlin.android")
     // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")
 }
 
 android {
-    namespace = "com.example.untitled1"
+    namespace = "com.crylia.hirameki"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -20,17 +20,31 @@ android {
     }
 
     defaultConfig {
-        applicationId = "com.crylia.wanikani_kanji_srs"
-        // You can update the following values to match your application needs.
-        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        applicationId = "com.crylia.hirameki_srs"
         minSdk = flutter.minSdkVersion
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        create("release") {
+            storeFile = file("hirameki-release-key.jks")
+            storePassword = project.findProperty("KEYSTORE_PASSWORD")?.toString()
+            keyAlias = project.findProperty("KEY_ALIAS")?.toString()
+            keyPassword = project.findProperty("KEY_PASSWORD")?.toString()
+        }
+    }
+
     buildTypes {
-        release {
+        getByName("release") {
+            signingConfig = signingConfigs.getByName("release")
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro",
+            )
         }
     }
 }

android/app/src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
     <application
-        android:label="WaniKani Kanji Srs"
+        android:label="Hirameki SRS"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
@@ -42,5 +42,8 @@
             <action android:name="android.intent.action.PROCESS_TEXT"/>
             <data android:mimeType="text/plain"/>
         </intent>
+        <intent>
+            <action android:name="android.intent.action.TTS_SERVICE" />
+        </intent>
     </queries>
 </manifest>

android/app/src/main/kotlin/com/crylia/hirameki/MainActivity.kt

@@ -1,4 +1,4 @@
-package com.example.untitled1
+package com.crylia.hirameki
 
 import io.flutter.embedding.android.FlutterActivity
 

android/build.gradle.kts

@@ -1,3 +1,11 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+plugins {
+    // Ensure these match your Flutter Gradle plugin requirements
+    id("com.android.application") version "8.9.1" apply false
+    id("org.jetbrains.kotlin.android") version "2.1.0" apply false
+}
+
 allprojects {
     repositories {
         google()
@@ -5,18 +13,17 @@ allprojects {
     }
 }
 
-val newBuildDir: Directory =
-    rootProject.layout.buildDirectory
-        .dir("../../build")
-        .get()
-rootProject.layout.buildDirectory.value(newBuildDir)
+// Optional: custom build directory (keep this if you really need a shared build folder)
+val newBuildDir = rootProject.layout.buildDirectory.dir("../../build").get()
+rootProject.layout.buildDirectory.set(newBuildDir)
 
 subprojects {
-    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
-    project.layout.buildDirectory.value(newSubprojectBuildDir)
+    val newSubprojectBuildDir = newBuildDir.dir(name)
+    layout.buildDirectory.set(newSubprojectBuildDir)
 }
+
 subprojects {
-    project.evaluationDependsOn(":app")
+    evaluationDependsOn(":app")
 }
 
 tasks.register<Delete>("clean") {

ios/.gitignore

@@ -1,34 +0,0 @@
-**/dgph
-*.mode1v3
-*.mode2v3
-*.moved-aside
-*.pbxuser
-*.perspectivev3
-**/*sync/
-.sconsign.dblite
-.tags*
-**/.vagrant/
-**/DerivedData/
-Icon?
-**/Pods/
-**/.symlinks/
-profile
-xcuserdata
-**/.generated/
-Flutter/App.framework
-Flutter/Flutter.framework
-Flutter/Flutter.podspec
-Flutter/Generated.xcconfig
-Flutter/ephemeral/
-Flutter/app.flx
-Flutter/app.zip
-Flutter/flutter_assets/
-Flutter/flutter_export_environment.sh
-ServiceDefinitions.json
-Runner/GeneratedPluginRegistrant.*
-
-# Exceptions to above rules.
-!default.mode1v3
-!default.mode2v3
-!default.pbxuser
-!default.perspectivev3

ios/Flutter/AppFrameworkInfo.plist

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-  <key>CFBundleDevelopmentRegion</key>
-  <string>en</string>
-  <key>CFBundleExecutable</key>
-  <string>App</string>
-  <key>CFBundleIdentifier</key>
-  <string>io.flutter.flutter.app</string>
-  <key>CFBundleInfoDictionaryVersion</key>
-  <string>6.0</string>
-  <key>CFBundleName</key>
-  <string>App</string>
-  <key>CFBundlePackageType</key>
-  <string>FMWK</string>
-  <key>CFBundleShortVersionString</key>
-  <string>1.0</string>
-  <key>CFBundleSignature</key>
-  <string>????</string>
-  <key>CFBundleVersion</key>
-  <string>1.0</string>
-  <key>MinimumOSVersion</key>
-  <string>13.0</string>
-</dict>
-</plist>

ios/Flutter/Debug.xcconfig

@@ -1 +0,0 @@
-#include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -1 +0,0 @@
-#include "Generated.xcconfig"

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@@ -1,616 +0,0 @@
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-			defaultConfigurationName = Release;
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-	rootObject = 97C146E61CF9000F007C117D /* Project object */;
-}

ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "self:">
-   </FileRef>
-</Workspace>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>PreviewsEnabled</key>
-	<false/>
-</dict>
-</plist>

ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -1,101 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "1510"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
-               BuildableName = "Runner.app"
-               BlueprintName = "Runner"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
-            BuildableName = "Runner.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <Testables>
-         <TestableReference
-            skipped = "NO"
-            parallelizable = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "331C8080294A63A400263BE5"
-               BuildableName = "RunnerTests.xctest"
-               BlueprintName = "RunnerTests"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </TestableReference>
-      </Testables>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      enableGPUValidationMode = "1"
-      allowLocationSimulation = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
-            BuildableName = "Runner.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Profile"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
-            BuildableName = "Runner.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>

ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "group:Runner.xcodeproj">
-   </FileRef>
-</Workspace>

ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>PreviewsEnabled</key>
-	<false/>
-</dict>
-</plist>

ios/Runner/AppDelegate.swift

@@ -1,13 +0,0 @@
-import Flutter
-import UIKit
-
-@main
-@objc class AppDelegate: FlutterAppDelegate {
-  override func application(
-    _ application: UIApplication,
-    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
-  ) -> Bool {
-    GeneratedPluginRegistrant.register(with: self)
-    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
-  }
-}

ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,122 +0,0 @@
-{
-  "images" : [
-    {
-      "size" : "20x20",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-20x20@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-20x20@3x.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-29x29@1x.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-29x29@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-29x29@3x.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-40x40@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-40x40@3x.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "60x60",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-60x60@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "60x60",
-      "idiom" : "iphone",
-      "filename" : "Icon-App-60x60@3x.png",
-      "scale" : "3x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-20x20@1x.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "20x20",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-20x20@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-29x29@1x.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "29x29",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-29x29@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-40x40@1x.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "40x40",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-40x40@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "76x76",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-76x76@1x.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "76x76",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-76x76@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "83.5x83.5",
-      "idiom" : "ipad",
-      "filename" : "Icon-App-83.5x83.5@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "1024x1024",
-      "idiom" : "ios-marketing",
-      "filename" : "Icon-App-1024x1024@1x.png",
-      "scale" : "1x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -1,23 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "filename" : "LaunchImage.png",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "LaunchImage@2x.png",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "filename" : "LaunchImage@3x.png",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -1,5 +0,0 @@
-# Launch Screen Assets
-
-You can customize the launch screen with your own desired assets by replacing the image files in this directory.
-
-You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
-    <dependencies>
-        <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
-    </dependencies>
-    <scenes>
-        <!--View Controller-->
-        <scene sceneID="EHf-IW-A2E">
-            <objects>
-                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
-                    <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
-                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
-                    </layoutGuides>
-                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <subviews>
-                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
-                            </imageView>
-                        </subviews>
-                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
-                        <constraints>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
-                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
-                        </constraints>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
-            </objects>
-            <point key="canvasLocation" x="53" y="375"/>
-        </scene>
-    </scenes>
-    <resources>
-        <image name="LaunchImage" width="168" height="185"/>
-    </resources>
-</document>

ios/Runner/Base.lproj/Main.storyboard

@@ -1,26 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
-    <dependencies>
-        <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
-    </dependencies>
-    <scenes>
-        <!--Flutter View Controller-->
-        <scene sceneID="tne-QT-ifu">
-            <objects>
-                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
-                    <layoutGuides>
-                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
-                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
-                    </layoutGuides>
-                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
-                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
-                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
-                    </view>
-                </viewController>
-                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
-            </objects>
-        </scene>
-    </scenes>
-</document>

ios/Runner/Info.plist

@@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>$(DEVELOPMENT_LANGUAGE)</string>
-	<key>CFBundleDisplayName</key>
-	<string>Untitled1</string>
-	<key>CFBundleExecutable</key>
-	<string>$(EXECUTABLE_NAME)</string>
-	<key>CFBundleIdentifier</key>
-	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>untitled1</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleShortVersionString</key>
-	<string>$(FLUTTER_BUILD_NAME)</string>
-	<key>CFBundleSignature</key>
-	<string>????</string>
-	<key>CFBundleVersion</key>
-	<string>$(FLUTTER_BUILD_NUMBER)</string>
-	<key>LSRequiresIPhoneOS</key>
-	<true/>
-	<key>UILaunchStoryboardName</key>
-	<string>LaunchScreen</string>
-	<key>UIMainStoryboardFile</key>
-	<string>Main</string>
-	<key>UISupportedInterfaceOrientations</key>
-	<array>
-		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
-	</array>
-	<key>UISupportedInterfaceOrientations~ipad</key>
-	<array>
-		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationPortraitUpsideDown</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
-	</array>
-	<key>CADisableMinimumFrameDurationOnPhone</key>
-	<true/>
-	<key>UIApplicationSupportsIndirectInputEvents</key>
-	<true/>
-</dict>
-</plist>

ios/Runner/Runner-Bridging-Header.h

@@ -1 +0,0 @@
-#import "GeneratedPluginRegistrant.h"

ios/RunnerTests/RunnerTests.swift

@@ -1,12 +0,0 @@
-import Flutter
-import UIKit
-import XCTest
-
-class RunnerTests: XCTestCase {
-
-  func testExample() {
-    // If you add code to the Runner application, consider adding tests here.
-    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
-  }
-
-}

lib/main.dart

@@ -1,14 +1,33 @@
 import 'package:flutter/material.dart';
+import 'package:hirameki_srs/src/models/theme_model.dart';
+import 'package:hirameki_srs/src/services/vocab_deck_repository.dart';
 import 'package:provider/provider.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 import 'src/services/deck_repository.dart';
 import 'src/screens/start_screen.dart';
+import 'src/services/tts_service.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  try {
+    await dotenv.load(fileName: ".env");
+  } catch (_) {}
 
   runApp(
-    Provider<DeckRepository>(
-      create: (_) => DeckRepository(),
+    MultiProvider(
+      providers: [
+        Provider<DeckRepository>(create: (_) => DeckRepository()),
+        Provider<VocabDeckRepository>(create: (_) => VocabDeckRepository()),
+        ChangeNotifierProvider<ThemeModel>(create: (_) => ThemeModel()),
+        Provider<TtsService>(
+          create: (_) {
+            final ttsService = TtsService();
+            ttsService.initTts();
+            return ttsService;
+          },
+          dispose: (_, ttsService) => ttsService.dispose(),
+        ),
+      ],
       child: const WkApp(),
     ),
   );
@@ -19,11 +38,15 @@ class WkApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'WaniKani SRS',
-      debugShowCheckedModeBanner: false,
-      theme: ThemeData.dark(useMaterial3: true),
-      home: const StartScreen(),
+    return Consumer<ThemeModel>(
+      builder: (context, themeModel, child) {
+        return MaterialApp(
+          title: 'Hirameki SRS',
+          debugShowCheckedModeBanner: false,
+          theme: themeModel.currentTheme,
+          home: const StartScreen(),
+        );
+      },
     );
   }
 }

lib/src/api/wk_client.dart

@@ -1,14 +1,24 @@
 import 'dart:convert';
 import 'package:http/http.dart' as http;
+import '../models/subject.dart';
+import '../models/kanji_item.dart';
+import '../models/vocabulary_item.dart';
 
 class WkClient {
   final String apiKey;
   final Map<String, String> headers;
   final String base = 'https://api.wanikani.com/v2';
 
-  WkClient(this.apiKey) : headers = {'Authorization': 'Bearer $apiKey', 'Wanikani-Revision': '20170710', 'Accept': 'application/json'};
+  WkClient(this.apiKey)
+    : headers = {
+        'Authorization': 'Bearer $apiKey',
+        'Wanikani-Revision': '20170710',
+        'Accept': 'application/json',
+      };
 
-  Future<List<Map<String, dynamic>>> fetchAllAssignments({List<String>? subjectTypes}) async {
+  Future<List<Map<String, dynamic>>> fetchAllAssignments({
+    List<String>? subjectTypes,
+  }) async {
     final out = <Map<String, dynamic>>[];
     String url = '$base/assignments?page=1';
     if (subjectTypes != null && subjectTypes.isNotEmpty) {
@@ -30,13 +40,15 @@ class WkClient {
     return out;
   }
 
-  Future<List<Map<String, dynamic>>> fetchAllSubjects({List<String>? types}) async {
+  Future<List<Map<String, dynamic>>> fetchAllSubjects({
+    List<String>? types,
+  }) async {
     final out = <Map<String, dynamic>>[];
     String url = '$base/subjects';
     if (types != null && types.isNotEmpty) {
       url += '?types=${types.join(',')}';
     }
-    
+
     while (url.isNotEmpty) {
       final resp = await http.get(Uri.parse(url), headers: headers);
       if (resp.statusCode != 200) throw Exception('API ${resp.statusCode}');
@@ -56,7 +68,10 @@ class WkClient {
     final out = <Map<String, dynamic>>[];
     const batch = 100;
     for (var i = 0; i < ids.length; i += batch) {
-      final chunk = ids.sublist(i, i + batch > ids.length ? ids.length : i + batch);
+      final chunk = ids.sublist(
+        i,
+        i + batch > ids.length ? ids.length : i + batch,
+      );
       String url = '$base/subjects?ids=${chunk.join(',')}&page=1';
       while (true) {
         final resp = await http.get(Uri.parse(url), headers: headers);
@@ -73,4 +88,14 @@ class WkClient {
     }
     return out;
   }
+
+  static Subject createSubjectFromMap(Map<String, dynamic> map) {
+    final String object = map['object'];
+    if (object == 'kanji') {
+      return KanjiItem.fromSubject(map);
+    } else if (object == 'vocabulary') {
+      return VocabularyItem.fromSubject(map);
+    }
+    throw Exception('Unknown subject type: $object');
+  }
 }

lib/src/app.dart

@@ -1,22 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:provider/provider.dart';
-import 'screens/home_screen.dart';
-import 'services/deck_repository.dart';
-
-class WkApp extends StatelessWidget {
-  const WkApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MultiProvider(
-      providers: [
-        Provider<DeckRepository>(create: (_) => DeckRepository()),
-      ],
-      child: MaterialApp(
-        title: 'WaniKani SRS',
-        theme: ThemeData(useMaterial3: true, colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple)),
-        home: const HomeScreen(),
-      ),
-    );
-  }
-}

lib/src/models/custom_kanji_item.dart

@@ -0,0 +1,108 @@
+class CustomKanjiItem {
+  final String characters;
+  final String meaning;
+  final String? kanji;
+  final bool useInterval;
+  SrsData srsData;
+
+  CustomKanjiItem({
+    required this.characters,
+    required this.meaning,
+    this.kanji,
+    this.useInterval = false,
+    SrsData? srsData,
+  }) : srsData = srsData ?? SrsData();
+
+  factory CustomKanjiItem.fromJson(Map<String, dynamic> json) {
+    SrsData srsData;
+    if (json['srsData'] != null) {
+      srsData = SrsData.fromJson(json['srsData']);
+      if (json['nextReview'] != null) {
+        final oldNextReview = DateTime.parse(json['nextReview'] as String);
+        srsData.japaneseToEnglishNextReview ??= oldNextReview;
+        srsData.englishToJapaneseNextReview ??= oldNextReview;
+        srsData.listeningComprehensionNextReview ??= oldNextReview;
+      }
+    } else {
+      DateTime? nextReview = json['nextReview'] != null
+          ? DateTime.parse(json['nextReview'] as String)
+          : null;
+      srsData = SrsData(
+        japaneseToEnglish: json['srsLevel'] as int? ?? 0,
+        japaneseToEnglishNextReview: nextReview,
+        englishToJapanese: json['srsLevel'] as int? ?? 0,
+        englishToJapaneseNextReview: nextReview,
+        listeningComprehension: json['srsLevel'] as int? ?? 0,
+        listeningComprehensionNextReview: nextReview,
+      );
+    }
+
+    return CustomKanjiItem(
+      characters: json['characters'] as String,
+      meaning: json['meaning'] as String,
+      kanji: json['kanji'] as String?,
+      useInterval: json['useInterval'] as bool? ?? false,
+      srsData: srsData,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'characters': characters,
+      'meaning': meaning,
+      'kanji': kanji,
+      'useInterval': useInterval,
+      'srsData': srsData.toJson(),
+    };
+  }
+}
+
+class SrsData {
+  int japaneseToEnglish;
+  DateTime? japaneseToEnglishNextReview;
+  int englishToJapanese;
+  DateTime? englishToJapaneseNextReview;
+  int listeningComprehension;
+  DateTime? listeningComprehensionNextReview;
+
+  SrsData({
+    this.japaneseToEnglish = 0,
+    this.japaneseToEnglishNextReview,
+    this.englishToJapanese = 0,
+    this.englishToJapaneseNextReview,
+    this.listeningComprehension = 0,
+    this.listeningComprehensionNextReview,
+  });
+
+  factory SrsData.fromJson(Map<String, dynamic> json) {
+    return SrsData(
+      japaneseToEnglish: json['japaneseToEnglish'] as int? ?? 0,
+      japaneseToEnglishNextReview: json['japaneseToEnglishNextReview'] != null
+          ? DateTime.parse(json['japaneseToEnglishNextReview'] as String)
+          : null,
+      englishToJapanese: json['englishToJapanese'] as int? ?? 0,
+      englishToJapaneseNextReview: json['englishToJapaneseNextReview'] != null
+          ? DateTime.parse(json['englishToJapaneseNextReview'] as String)
+          : null,
+      listeningComprehension: json['listeningComprehension'] as int? ?? 0,
+      listeningComprehensionNextReview:
+          json['listeningComprehensionNextReview'] != null
+          ? DateTime.parse(json['listeningComprehensionNextReview'] as String)
+          : null,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'japaneseToEnglish': japaneseToEnglish,
+      'japaneseToEnglishNextReview': japaneseToEnglishNextReview
+          ?.toIso8601String(),
+      'englishToJapanese': englishToJapanese,
+      'englishToJapaneseNextReview': englishToJapaneseNextReview
+          ?.toIso8601String(),
+      'listeningComprehension': listeningComprehension,
+      'listeningComprehensionNextReview': listeningComprehensionNextReview
+          ?.toIso8601String(),
+    };
+  }
+}

lib/src/models/kanji_item.dart

@@ -1,54 +1,24 @@
-enum QuizMode { kanjiToEnglish, englishToKanji, reading }
+import 'subject.dart';
 
-class SrsItem {
-  final int kanjiId;
-  final QuizMode quizMode;
-  final String? readingType; // 'onyomi' or 'kunyomi'
-  int srsStage;
-  DateTime lastAsked;
-
-  SrsItem({
-    required this.kanjiId,
-    required this.quizMode,
-    this.readingType,
-    this.srsStage = 0,
-    DateTime? lastAsked,
-  }) : lastAsked = lastAsked ?? DateTime.now();
-}
-
-class KanjiItem {
-  final int id;
-  final int level;
-  final String characters;
-  final List<String> meanings;
+class KanjiItem extends Subject {
   final List<String> onyomi;
   final List<String> kunyomi;
-  final Map<String, SrsItem> srsItems = {};
 
   KanjiItem({
-    required this.id,
-    required this.level,
-    required this.characters,
-    required this.meanings,
+    required super.id,
+    required super.level,
+    required super.characters,
+    required super.meanings,
     required this.onyomi,
     required this.kunyomi,
   });
 
   factory KanjiItem.fromSubject(Map<String, dynamic> subj) {
-    final int id = subj['id'] as int;
-    final data = subj['data'] as Map<String, dynamic>;
-    final int level = data['level'] as int;
-    final String characters = (data['characters'] ?? '') as String;
-    final List<String> meanings = <String>[];
+    final commonFields = Subject.parseCommonFields(subj);
+    final data = commonFields['data'] as Map<String, dynamic>;
     final List<String> onyomi = <String>[];
     final List<String> kunyomi = <String>[];
 
-    if (data['meanings'] != null) {
-      for (final m in data['meanings'] as List) {
-        meanings.add((m['meaning'] as String).toLowerCase());
-      }
-    }
-
     if (data['readings'] != null) {
       for (final r in data['readings'] as List) {
         final typ = r['type'] as String? ?? '';
@@ -62,10 +32,10 @@ class KanjiItem {
     }
 
     return KanjiItem(
-      id: id,
-      level: level,
-      characters: characters,
-      meanings: meanings,
+      id: commonFields['id'] as int,
+      level: commonFields['level'] as int,
+      characters: commonFields['characters'] as String,
+      meanings: commonFields['meanings'] as List<String>,
       onyomi: onyomi,
       kunyomi: kunyomi,
     );
@@ -83,89 +53,3 @@ String _katakanaToHiragana(String input) {
   }
   return buf.toString();
 }
-
-enum VocabQuizMode { vocabToEnglish, englishToVocab, audioToEnglish }
-
-class VocabSrsItem {
-  final int vocabId;
-  final VocabQuizMode quizMode;
-  int srsStage;
-  DateTime lastAsked;
-
-  VocabSrsItem({
-    required this.vocabId,
-    required this.quizMode,
-    this.srsStage = 0,
-    DateTime? lastAsked,
-  }) : lastAsked = lastAsked ?? DateTime.now();
-}
-
-class PronunciationAudio {
-  final String url;
-  final String gender;
-
-  PronunciationAudio({required this.url, required this.gender});
-}
-
-class VocabularyItem {
-  final int id;
-  final int level;
-  final String characters;
-  final List<String> meanings;
-  final List<String> readings;
-  final List<PronunciationAudio> pronunciationAudios;
-  final Map<String, VocabSrsItem> srsItems = {};
-
-  VocabularyItem(
-      {required this.id,
-      required this.level,
-      required this.characters,
-      required this.meanings,
-      required this.readings,
-      required this.pronunciationAudios});
-
-  factory VocabularyItem.fromSubject(Map<String, dynamic> subj) {
-    final int id = subj['id'] as int;
-    final data = subj['data'] as Map<String, dynamic>;
-    final int level = data['level'] as int;
-    final String characters = (data['characters'] ?? '') as String;
-    final List<String> meanings = <String>[];
-    final List<String> readings = <String>[];
-    final List<PronunciationAudio> pronunciationAudios = <PronunciationAudio>[];
-
-    if (data['meanings'] != null) {
-      for (final m in data['meanings'] as List) {
-        meanings.add((m['meaning'] as String).toLowerCase());
-      }
-    }
-
-    if (data['readings'] != null) {
-      for (final r in data['readings'] as List) {
-        readings.add(r['reading'] as String);
-      }
-    }
-
-    if (data['pronunciation_audios'] != null) {
-      for (final audio in data['pronunciation_audios'] as List) {
-        final url = audio['url'] as String?;
-        final metadata = audio['metadata'] as Map<String, dynamic>?;
-        final gender = metadata?['gender'] as String?;
-
-        if (url != null && gender != null) {
-          pronunciationAudios.add(PronunciationAudio(
-            url: url,
-            gender: gender,
-          ));
-        }
-      }
-    }
-
-    return VocabularyItem(
-        id: id,
-        level: level,
-        characters: characters,
-        meanings: meanings,
-        readings: readings,
-        pronunciationAudios: pronunciationAudios);
-  }
-}

lib/src/models/srs_item.dart

@@ -0,0 +1,19 @@
+enum QuizMode { kanjiToEnglish, englishToKanji, reading, vocabToEnglish, englishToVocab, audioToEnglish }
+
+class SrsItem {
+  final int subjectId;
+  final QuizMode quizMode;
+  final String? readingType;
+  int srsStage;
+  DateTime lastAsked;
+  bool disabled;
+
+  SrsItem({
+    required this.subjectId,
+    required this.quizMode,
+    this.readingType,
+    this.srsStage = 0,
+    DateTime? lastAsked,
+    this.disabled = false,
+  }) : lastAsked = lastAsked ?? DateTime.now();
+}

lib/src/models/subject.dart

@@ -0,0 +1,38 @@
+import 'srs_item.dart';
+
+abstract class Subject {
+  final int id;
+  final int level;
+  final String characters;
+  final List<String> meanings;
+  final Map<String, SrsItem> srsItems = {};
+
+  Subject({
+    required this.id,
+    required this.level,
+    required this.characters,
+    required this.meanings,
+  });
+
+  static Map<String, dynamic> parseCommonFields(Map<String, dynamic> subj) {
+    final int id = subj['id'] as int;
+    final data = subj['data'] as Map<String, dynamic>;
+    final int level = data['level'] as int;
+    final String characters = (data['characters'] ?? '') as String;
+    final List<String> meanings = <String>[];
+
+    if (data['meanings'] != null) {
+      for (final m in data['meanings'] as List) {
+        meanings.add((m['meaning'] as String).toLowerCase());
+      }
+    }
+
+    return {
+      'id': id,
+      'level': level,
+      'characters': characters,
+      'meanings': meanings,
+      'data': data,
+    };
+  }
+}

lib/src/models/subject_factory.dart

@@ -0,0 +1,15 @@
+import 'kanji_item.dart';
+import 'vocabulary_item.dart';
+import 'subject.dart';
+
+class SubjectFactory {
+  static Subject fromMap(Map<String, dynamic> map) {
+    final String object = map['object'];
+    if (object == 'kanji') {
+      return KanjiItem.fromSubject(map);
+    } else if (object == 'vocabulary') {
+      return VocabularyItem.fromSubject(map);
+    }
+    throw Exception('Unknown subject type: $object');
+  }
+}

lib/src/models/theme_model.dart

@@ -0,0 +1,13 @@
+import 'package:flutter/material.dart';
+import 'package:hirameki_srs/src/themes.dart';
+
+class ThemeModel extends ChangeNotifier {
+  ThemeData _currentTheme = Themes.dark;
+
+  ThemeData get currentTheme => _currentTheme;
+
+  void setTheme(ThemeData theme) {
+    _currentTheme = theme;
+    notifyListeners();
+  }
+}

lib/src/models/vocabulary_item.dart

@@ -0,0 +1,56 @@
+import 'subject.dart';
+
+class PronunciationAudio {
+  final String url;
+  final String gender;
+
+  PronunciationAudio({required this.url, required this.gender});
+}
+
+class VocabularyItem extends Subject {
+  final List<String> readings;
+  final List<PronunciationAudio> pronunciationAudios;
+
+  VocabularyItem({
+    required super.id,
+    required super.level,
+    required super.characters,
+    required super.meanings,
+    required this.readings,
+    required this.pronunciationAudios,
+  });
+
+  factory VocabularyItem.fromSubject(Map<String, dynamic> subj) {
+    final commonFields = Subject.parseCommonFields(subj);
+    final data = commonFields['data'] as Map<String, dynamic>;
+    final List<String> readings = <String>[];
+    final List<PronunciationAudio> pronunciationAudios = <PronunciationAudio>[];
+
+    if (data['readings'] != null) {
+      for (final r in data['readings'] as List) {
+        readings.add(r['reading'] as String);
+      }
+    }
+
+    if (data['pronunciation_audios'] != null) {
+      for (final audio in data['pronunciation_audios'] as List) {
+        final url = audio['url'] as String?;
+        final metadata = audio['metadata'] as Map<String, dynamic>?;
+        final gender = metadata?['gender'] as String?;
+
+        if (url != null && gender != null) {
+          pronunciationAudios.add(PronunciationAudio(url: url, gender: gender));
+        }
+      }
+    }
+
+    return VocabularyItem(
+      id: commonFields['id'] as int,
+      level: commonFields['level'] as int,
+      characters: commonFields['characters'] as String,
+      meanings: commonFields['meanings'] as List<String>,
+      readings: readings,
+      pronunciationAudios: pronunciationAudios,
+    );
+  }
+}

lib/src/screens/add_card_screen.dart

@@ -0,0 +1,170 @@
+import 'package:flutter/material.dart';
+import 'package:kana_kit/kana_kit.dart';
+import '../models/custom_kanji_item.dart';
+import '../services/custom_deck_repository.dart';
+
+class AddCardScreen extends StatefulWidget {
+  const AddCardScreen({super.key});
+
+  @override
+  State<AddCardScreen> createState() => _AddCardScreenState();
+}
+
+class _AddCardScreenState extends State<AddCardScreen> {
+  final _formKey = GlobalKey<FormState>();
+  final _japaneseController = TextEditingController();
+  final _englishController = TextEditingController();
+  final _kanjiController = TextEditingController();
+  final _kanaKit = const KanaKit();
+  final _deckRepository = CustomDeckRepository();
+  bool _useInterval = false;
+  late FocusNode _japaneseFocusNode;
+
+  @override
+  void initState() {
+    super.initState();
+    _japaneseController.addListener(_convertToKana);
+    _japaneseFocusNode = FocusNode();
+    _japaneseFocusNode.addListener(_onJapaneseFocusChange);
+  }
+
+  @override
+  void dispose() {
+    _japaneseController.removeListener(_convertToKana);
+    _japaneseController.dispose();
+    _englishController.dispose();
+    _kanjiController.dispose();
+    _japaneseFocusNode.removeListener(_onJapaneseFocusChange);
+    _japaneseFocusNode.dispose();
+    super.dispose();
+  }
+
+  void _convertToKana() {
+    final text = _japaneseController.text;
+    final selection = _japaneseController.selection;
+    final offset = selection.baseOffset;
+
+    if ((offset > 1 && text[offset - 1] == 'n' && text[offset - 2] != 'n') ||
+        (offset == 1 && text[offset - 1] == 'n')) {
+      return;
+    }
+
+    final converted = _kanaKit.toKana(text);
+
+    if (converted != text) {
+      _japaneseController.value = _japaneseController.value.copyWith(
+        text: converted,
+        selection: TextSelection.fromPosition(
+          TextPosition(offset: converted.length),
+        ),
+      );
+    }
+  }
+
+  void _onJapaneseFocusChange() {
+    if (!_japaneseFocusNode.hasFocus) {
+      _forceNConversion();
+    }
+  }
+
+  void _forceNConversion() {
+    final text = _japaneseController.text;
+    if (text.isNotEmpty &&
+        text.endsWith('n') &&
+        _kanaKit.toKana(text) != text) {
+      _japaneseController.text = _kanaKit.toKana(text);
+    }
+  }
+
+  void _saveCard() {
+    if (_formKey.currentState!.validate()) {
+      final srsData = _useInterval
+          ? SrsData(
+              japaneseToEnglishNextReview: DateTime.now(),
+              englishToJapaneseNextReview: DateTime.now(),
+              listeningComprehensionNextReview: DateTime.now(),
+            )
+          : SrsData();
+
+      final newItem = CustomKanjiItem(
+        characters: _japaneseController.text,
+        meaning: _englishController.text,
+        kanji: _kanjiController.text.trim().isNotEmpty
+            ? _kanjiController.text.trim()
+            : null,
+        useInterval: _useInterval,
+        srsData: srsData,
+      );
+      _deckRepository.addCard(newItem);
+      Navigator.of(context).pop();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('Add New Card')),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Form(
+          key: _formKey,
+          child: Column(
+            children: [
+              TextFormField(
+                controller: _japaneseController,
+                focusNode: _japaneseFocusNode,
+                decoration: const InputDecoration(
+                  labelText: 'Japanese (Kana)',
+                  hintText: 'Enter Japanese vocabulary or kanji',
+                ),
+                validator: (value) {
+                  if (value == null || value.isEmpty) {
+                    return 'Please enter a Japanese term';
+                  }
+                  return null;
+                },
+              ),
+              const SizedBox(height: 16),
+              TextFormField(
+                controller: _kanjiController,
+                decoration: const InputDecoration(
+                  labelText: 'Japanese (Kanji)',
+                  hintText: 'Enter the kanji (optional)',
+                ),
+              ),
+              const SizedBox(height: 16),
+              TextFormField(
+                controller: _englishController,
+                decoration: const InputDecoration(
+                  labelText: 'English',
+                  hintText: 'Enter the English meaning',
+                ),
+                validator: (value) {
+                  if (value == null || value.isEmpty) {
+                    return 'Please enter an English meaning';
+                  }
+                  return null;
+                },
+              ),
+              const SizedBox(height: 16),
+              SwitchListTile(
+                title: const Text('Use Interval-based SRS'),
+                value: _useInterval,
+                onChanged: (value) {
+                  setState(() {
+                    _useInterval = value;
+                  });
+                },
+              ),
+              const SizedBox(height: 32),
+              ElevatedButton(
+                onPressed: _saveCard,
+                child: const Text('Save Card'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/src/screens/custom_card_details_screen.dart

@@ -0,0 +1,139 @@
+import 'package:flutter/material.dart';
+import '../models/custom_kanji_item.dart';
+import '../services/custom_deck_repository.dart';
+
+class CustomCardDetailsScreen extends StatefulWidget {
+  final CustomKanjiItem item;
+  final CustomDeckRepository repository;
+
+  const CustomCardDetailsScreen({
+    super.key,
+    required this.item,
+    required this.repository,
+  });
+
+  @override
+  State<CustomCardDetailsScreen> createState() =>
+      _CustomCardDetailsScreenState();
+}
+
+class _CustomCardDetailsScreenState extends State<CustomCardDetailsScreen> {
+  late TextEditingController _japaneseController;
+  late TextEditingController _englishController;
+  late TextEditingController _kanjiController;
+  late bool _useInterval;
+
+  @override
+  void initState() {
+    super.initState();
+    _japaneseController = TextEditingController(text: widget.item.characters);
+    _englishController = TextEditingController(text: widget.item.meaning);
+    _kanjiController = TextEditingController(text: widget.item.kanji);
+    _useInterval = widget.item.useInterval;
+  }
+
+  @override
+  void dispose() {
+    _japaneseController.dispose();
+    _englishController.dispose();
+    _kanjiController.dispose();
+    super.dispose();
+  }
+
+  void _saveChanges() {
+    final updatedItem = CustomKanjiItem(
+      characters: _japaneseController.text,
+      meaning: _englishController.text,
+      kanji: _kanjiController.text.trim().isNotEmpty
+          ? _kanjiController.text.trim()
+          : null,
+      useInterval: _useInterval,
+      srsData: widget.item.srsData,
+    );
+    widget.repository.updateCard(updatedItem);
+    Navigator.of(context).pop(true);
+  }
+
+  void _deleteCard() {
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text('Delete Card'),
+        content: const Text('Are you sure you want to delete this card?'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () {
+              widget.repository.deleteCard(widget.item);
+              Navigator.of(context).pop();
+              Navigator.of(context).pop(true);
+            },
+            child: const Text('Delete'),
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Edit Card'),
+        actions: [
+          IconButton(icon: const Icon(Icons.delete), onPressed: _deleteCard),
+        ],
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          children: [
+            TextFormField(
+              controller: _japaneseController,
+              decoration: const InputDecoration(labelText: 'Japanese (Kana)'),
+            ),
+            TextFormField(
+              controller: _kanjiController,
+              decoration: const InputDecoration(labelText: 'Japanese (Kanji)'),
+            ),
+            TextFormField(
+              controller: _englishController,
+              decoration: const InputDecoration(labelText: 'English'),
+            ),
+            SwitchListTile(
+              title: const Text('Use Interval SRS'),
+              value: _useInterval,
+              onChanged: (value) {
+                setState(() {
+                  _useInterval = value;
+                });
+              },
+            ),
+            const SizedBox(height: 20),
+            const Text(
+              'SRS Levels',
+              style: TextStyle(fontWeight: FontWeight.bold),
+            ),
+            Text(
+              'Jpn→Eng: ${widget.item.srsData.japaneseToEnglish} (Next review: ${widget.item.srsData.japaneseToEnglishNextReview?.toString() ?? 'N/A'})',
+            ),
+            Text(
+              'Eng→Jpn: ${widget.item.srsData.englishToJapanese} (Next review: ${widget.item.srsData.englishToJapaneseNextReview?.toString() ?? 'N/A'})',
+            ),
+            Text(
+              'Listening: ${widget.item.srsData.listeningComprehension} (Next review: ${widget.item.srsData.listeningComprehensionNextReview?.toString() ?? 'N/A'})',
+            ),
+            const SizedBox(height: 20),
+            ElevatedButton(
+              onPressed: _saveChanges,
+              child: const Text('Save Changes'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/src/screens/custom_quiz_screen.dart

@@ -0,0 +1,458 @@
+import 'package:flutter/material.dart';
+import 'dart:math';
+import '../models/custom_kanji_item.dart';
+import '../widgets/options_grid.dart';
+import '../widgets/kanji_card.dart';
+import 'package:provider/provider.dart';
+import '../services/tts_service.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:audioplayers/audioplayers.dart';
+
+enum CustomQuizMode {
+  japaneseToEnglish,
+  englishToJapanese,
+  listeningComprehension,
+}
+
+class CustomQuizScreen extends StatefulWidget {
+  final List<CustomKanjiItem> deck;
+  final CustomQuizMode quizMode;
+  final Function(CustomKanjiItem) onCardReviewed;
+  final bool useKanji;
+  final bool isActive;
+
+  const CustomQuizScreen({
+    super.key,
+    required this.deck,
+    required this.quizMode,
+    required this.onCardReviewed,
+    required this.useKanji,
+    required this.isActive,
+  });
+
+  @override
+  State<CustomQuizScreen> createState() => CustomQuizScreenState();
+}
+
+class _CustomQuizState {
+  CustomKanjiItem? current;
+  List<String> options = [];
+  List<String> correctAnswers = [];
+  int score = 0;
+  int asked = 0;
+  Key key = UniqueKey();
+  String? selectedOption;
+  bool showResult = false;
+  Set<String> wrongItems = {};
+}
+
+class CustomQuizScreenState extends State<CustomQuizScreen>
+    with TickerProviderStateMixin {
+  final _quizState = _CustomQuizState();
+  List<CustomKanjiItem> _shuffledDeck = [];
+  int _sessionDeckSize = 0;
+  bool _isAnswering = false;
+  late AnimationController _shakeController;
+  late Animation<double> _shakeAnimation;
+  final _audioPlayer = AudioPlayer();
+
+  bool _playIncorrectSound = true;
+  bool _playCorrectSound = true;
+  bool _playNarrator = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _shuffledDeck = widget.deck.toList()..shuffle();
+    _sessionDeckSize = _shuffledDeck.length;
+    _shakeController = AnimationController(
+      duration: const Duration(milliseconds: 500),
+      vsync: this,
+    );
+    _shakeAnimation = Tween<double>(begin: 0, end: 1).animate(
+      CurvedAnimation(parent: _shakeController, curve: Curves.elasticIn),
+    );
+    _loadSettings();
+    _nextQuestion();
+  }
+
+  Future<void> _loadSettings() async {
+    final prefs = await SharedPreferences.getInstance();
+    setState(() {
+      _playIncorrectSound = prefs.getBool('playIncorrectSound') ?? true;
+      _playCorrectSound = prefs.getBool('playCorrectSound') ?? true;
+      _playNarrator = prefs.getBool('playNarrator') ?? true;
+    });
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+  }
+
+  @override
+  void didUpdateWidget(CustomQuizScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.deck != oldWidget.deck && !widget.isActive) {
+      _shuffledDeck = widget.deck.toList()..shuffle();
+      _sessionDeckSize = _shuffledDeck.length;
+      _nextQuestion();
+    }
+    if (widget.useKanji != oldWidget.useKanji) {
+      _nextQuestion();
+    }
+  }
+
+  void playAudio() async {
+    final quizState = _quizState;
+    if (widget.quizMode == CustomQuizMode.listeningComprehension &&
+        quizState.current != null &&
+        _playNarrator) {
+      final ttsService = Provider.of<TtsService>(context, listen: false);
+      await ttsService.speak(quizState.current!.characters);
+    }
+  }
+
+  @override
+  void dispose() {
+    _shakeController.dispose();
+    super.dispose();
+  }
+
+  void _answer(String option) async {
+    final quizState = _quizState;
+    final current = quizState.current!;
+    final isCorrect = quizState.correctAnswers
+        .map((a) => a.toLowerCase().trim())
+        .contains(option.toLowerCase().trim());
+
+    setState(() {
+      quizState.selectedOption = option;
+      quizState.showResult = true;
+      _isAnswering = true;
+    });
+
+    if (current.useInterval) {
+      _updateSrsLevel(current, isCorrect);
+    }
+
+    final correctDisplay = (widget.quizMode == CustomQuizMode.englishToJapanese)
+        ? (widget.useKanji && current.kanji != null
+              ? current.kanji!
+              : current.characters)
+        : current.meaning;
+
+    final snack = SnackBar(
+      content: Text(
+        isCorrect ? 'Correct!' : 'Wrong — correct: $correctDisplay',
+        style: TextStyle(
+          color: isCorrect
+              ? Theme.of(context).colorScheme.secondary
+              : Theme.of(context).colorScheme.error,
+          fontWeight: FontWeight.bold,
+        ),
+      ),
+      backgroundColor: Theme.of(context).colorScheme.surfaceContainerHighest,
+      duration: const Duration(milliseconds: 900),
+    );
+    if (mounted) {
+      ScaffoldMessenger.of(context).showSnackBar(snack);
+    }
+
+    if (isCorrect) {
+      quizState.asked += 1;
+      if (!quizState.wrongItems.contains(current.characters)) {
+        quizState.score += 1;
+      }
+      if (_playCorrectSound && !_playNarrator) {
+        await _audioPlayer.play(AssetSource('sfx/correct.wav'));
+      } else if (_playNarrator) {
+        if (widget.quizMode == CustomQuizMode.japaneseToEnglish ||
+            widget.quizMode == CustomQuizMode.englishToJapanese) {
+          await _speak(current.characters);
+        }
+      }
+      await Future.delayed(const Duration(milliseconds: 500));
+    } else {
+      quizState.wrongItems.add(current.characters);
+      _shuffledDeck.add(current);
+      _shuffledDeck.shuffle();
+      if (_playIncorrectSound) {
+        await _audioPlayer.play(AssetSource('sfx/incorrect.wav'));
+      }
+      _shakeController.forward(from: 0);
+      await Future.delayed(const Duration(milliseconds: 900));
+    }
+
+    Future.delayed(const Duration(milliseconds: 900), () {
+      if (mounted) {
+        _nextQuestion();
+      }
+    });
+  }
+
+  void _updateSrsLevel(CustomKanjiItem item, bool isCorrect) {
+    int currentSrsLevel = 0;
+    switch (widget.quizMode) {
+      case CustomQuizMode.japaneseToEnglish:
+        currentSrsLevel = item.srsData.japaneseToEnglish;
+        break;
+      case CustomQuizMode.englishToJapanese:
+        currentSrsLevel = item.srsData.englishToJapanese;
+        break;
+      case CustomQuizMode.listeningComprehension:
+        currentSrsLevel = item.srsData.listeningComprehension;
+        break;
+    }
+
+    if (isCorrect) {
+      currentSrsLevel++;
+      final interval = pow(2, currentSrsLevel).toInt();
+      final newNextReview = DateTime.now().add(Duration(hours: interval));
+      switch (widget.quizMode) {
+        case CustomQuizMode.japaneseToEnglish:
+          item.srsData.japaneseToEnglishNextReview = newNextReview;
+          break;
+        case CustomQuizMode.englishToJapanese:
+          item.srsData.englishToJapaneseNextReview = newNextReview;
+          break;
+        case CustomQuizMode.listeningComprehension:
+          item.srsData.listeningComprehensionNextReview = newNextReview;
+          break;
+      }
+    } else {
+      currentSrsLevel = max(0, currentSrsLevel - 1);
+      final newNextReview = DateTime.now().add(const Duration(hours: 1));
+      switch (widget.quizMode) {
+        case CustomQuizMode.japaneseToEnglish:
+          item.srsData.japaneseToEnglishNextReview = newNextReview;
+          break;
+        case CustomQuizMode.englishToJapanese:
+          item.srsData.englishToJapaneseNextReview = newNextReview;
+          break;
+        case CustomQuizMode.listeningComprehension:
+          item.srsData.listeningComprehensionNextReview = newNextReview;
+          break;
+      }
+    }
+
+    switch (widget.quizMode) {
+      case CustomQuizMode.japaneseToEnglish:
+        item.srsData.japaneseToEnglish = currentSrsLevel;
+        break;
+      case CustomQuizMode.englishToJapanese:
+        item.srsData.englishToJapanese = currentSrsLevel;
+        break;
+      case CustomQuizMode.listeningComprehension:
+        item.srsData.listeningComprehension = currentSrsLevel;
+        break;
+    }
+
+    widget.onCardReviewed(item);
+  }
+
+  void _nextQuestion() {
+    final quizState = _quizState;
+
+    if (_shuffledDeck.isEmpty) {
+      setState(() {
+        quizState.current = null;
+      });
+      return;
+    }
+
+    quizState.current = _shuffledDeck.removeAt(0);
+    quizState.key = UniqueKey();
+
+    quizState.correctAnswers = [];
+    quizState.options = [];
+    quizState.selectedOption = null;
+    quizState.showResult = false;
+
+    if (widget.quizMode == CustomQuizMode.japaneseToEnglish ||
+        widget.quizMode == CustomQuizMode.listeningComprehension) {
+      quizState.correctAnswers = [quizState.current!.meaning];
+      quizState.options = [quizState.correctAnswers.first];
+    } else {
+      quizState.correctAnswers = [
+        widget.useKanji && quizState.current!.kanji != null
+            ? quizState.current!.kanji!
+            : quizState.current!.characters,
+      ];
+      quizState.options = [quizState.correctAnswers.first];
+    }
+
+    final otherItems = widget.deck
+        .where((item) => item.characters != quizState.current!.characters)
+        .toList();
+    otherItems.shuffle();
+
+    for (var i = 0; i < min(3, otherItems.length); i++) {
+      if (widget.quizMode == CustomQuizMode.japaneseToEnglish ||
+          widget.quizMode == CustomQuizMode.listeningComprehension) {
+        quizState.options.add(otherItems[i].meaning);
+      } else {
+        quizState.options.add(
+          widget.useKanji && otherItems[i].kanji != null
+              ? otherItems[i].kanji!
+              : otherItems[i].characters,
+        );
+      }
+    }
+    while (quizState.options.length < 4) {
+      quizState.options.add('---');
+    }
+    quizState.options.shuffle();
+
+    setState(() {
+      _isAnswering = false;
+    });
+
+    if (widget.quizMode == CustomQuizMode.listeningComprehension) {
+      _speak(quizState.current!.characters);
+    }
+  }
+
+  Future<void> _speak(String text) async {
+    final ttsService = Provider.of<TtsService>(context, listen: false);
+    await ttsService.speak(text);
+  }
+
+  void _onOptionSelected(String option) {
+    if (!_isAnswering) {
+      _answer(option);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final quizState = _quizState;
+
+    if (quizState.current == null) {
+      return Center(
+        child: Text(
+          'Review session complete!',
+          style: TextStyle(color: Theme.of(context).colorScheme.onSurface),
+        ),
+      );
+    }
+
+    final currentItem = quizState.current!;
+
+    Widget promptWidget;
+    String subtitle = '';
+
+    if (widget.quizMode == CustomQuizMode.listeningComprehension) {
+      promptWidget = IconButton(
+        icon: const Icon(Icons.volume_up, size: 64),
+        onPressed: () => _speak(currentItem.characters),
+      );
+    } else if (widget.quizMode == CustomQuizMode.englishToJapanese) {
+      promptWidget = Text(
+        currentItem.meaning,
+        style: TextStyle(
+          fontSize: 48,
+          color: Theme.of(context).colorScheme.onSurface,
+        ),
+        textAlign: TextAlign.center,
+      );
+    } else {
+      final promptText = widget.useKanji && currentItem.kanji != null
+          ? currentItem.kanji!
+          : currentItem.characters;
+      promptWidget = GestureDetector(
+        onTap: () => _speak(promptText),
+        child: Text(
+          promptText,
+          style: TextStyle(
+            fontSize: 48,
+            color: Theme.of(context).colorScheme.onSurface,
+          ),
+          textAlign: TextAlign.center,
+        ),
+      );
+    }
+
+    return Padding(
+      key: quizState.key,
+      padding: const EdgeInsets.all(16.0),
+      child: Column(
+        children: [
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                '${quizState.asked} / $_sessionDeckSize',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                  fontSize: 18,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+              const SizedBox(height: 4),
+              LinearProgressIndicator(
+                value: _sessionDeckSize > 0
+                    ? quizState.asked / _sessionDeckSize
+                    : 0,
+                backgroundColor: Theme.of(
+                  context,
+                ).colorScheme.surfaceContainerHighest,
+                valueColor: AlwaysStoppedAnimation<Color>(
+                  Theme.of(context).colorScheme.primary,
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 18),
+          Expanded(
+            flex: 3,
+            child: Center(
+              child: ConstrainedBox(
+                constraints: const BoxConstraints(
+                  minWidth: 0,
+                  maxWidth: 500,
+                  minHeight: 150,
+                ),
+                child: KanjiCard(
+                  characterWidget: promptWidget,
+                  subtitle: subtitle,
+                ),
+              ),
+            ),
+          ),
+          const SizedBox(height: 12),
+          SafeArea(
+            top: false,
+            child: Column(
+              children: [
+                AnimatedBuilder(
+                  animation: _shakeAnimation,
+                  builder: (context, child) {
+                    return Transform.translate(
+                      offset: Offset(_shakeAnimation.value * 10, 0),
+                      child: child,
+                    );
+                  },
+                  child: OptionsGrid(
+                    options: quizState.options,
+                    onSelected: _isAnswering ? (option) {} : _onOptionSelected,
+                    selectedOption: quizState.selectedOption,
+                    correctAnswers: quizState.correctAnswers,
+                    showResult: quizState.showResult,
+                  ),
+                ),
+                const SizedBox(height: 8),
+                Text(
+                  'Score: ${quizState.score} / ${quizState.asked}',
+                  style: TextStyle(
+                    color: Theme.of(context).colorScheme.onSurface,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/src/screens/custom_srs_screen.dart

@@ -0,0 +1,153 @@
+import 'package:flutter/material.dart';
+import '../models/custom_kanji_item.dart';
+import '../services/custom_deck_repository.dart';
+import 'custom_quiz_screen.dart';
+
+class CustomSrsScreen extends StatefulWidget {
+  const CustomSrsScreen({super.key});
+
+  @override
+  State<CustomSrsScreen> createState() => _CustomSrsScreenState();
+}
+
+class _CustomSrsScreenState extends State<CustomSrsScreen>
+    with SingleTickerProviderStateMixin {
+  late TabController _tabController;
+  final _deckRepository = CustomDeckRepository();
+  List<CustomKanjiItem> _deck = [];
+  bool _useKanji = false;
+  final _quizScreenKeys = [
+    GlobalKey<CustomQuizScreenState>(),
+    GlobalKey<CustomQuizScreenState>(),
+    GlobalKey<CustomQuizScreenState>(),
+  ];
+
+  @override
+  void initState() {
+    super.initState();
+    _tabController = TabController(length: 3, vsync: this);
+    _tabController.addListener(() {
+      if (_tabController.indexIsChanging) {
+        final key = _quizScreenKeys[_tabController.index];
+        key.currentState?.playAudio();
+      }
+      setState(() {});
+    });
+    _loadDeck();
+  }
+
+  @override
+  void dispose() {
+    _tabController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _loadDeck() async {
+    final deck = await _deckRepository.getCustomDeck();
+    setState(() {
+      _deck = deck;
+    });
+  }
+
+  Future<void> _updateCard(CustomKanjiItem item) async {
+    final index = _deck.indexWhere(
+      (element) => element.characters == item.characters,
+    );
+    if (index != -1) {
+      setState(() {
+        _deck[index] = item;
+      });
+      await _deckRepository.saveDeck(_deck);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final now = DateTime.now();
+    final jpnToEngReviewDeck = _deck.where((item) {
+      if (!item.useInterval) return true;
+      return item.srsData.japaneseToEnglishNextReview == null ||
+          item.srsData.japaneseToEnglishNextReview!.isBefore(now);
+    }).toList();
+
+    final engToJpnReviewDeck = _deck.where((item) {
+      if (!item.useInterval) return true;
+      return item.srsData.englishToJapaneseNextReview == null ||
+          item.srsData.englishToJapaneseNextReview!.isBefore(now);
+    }).toList();
+
+    final listeningReviewDeck = _deck.where((item) {
+      if (!item.useInterval) return true;
+      return item.srsData.listeningComprehensionNextReview == null ||
+          item.srsData.listeningComprehensionNextReview!.isBefore(now);
+    }).toList();
+
+    final allDecksEmpty =
+        jpnToEngReviewDeck.isEmpty &&
+        engToJpnReviewDeck.isEmpty &&
+        listeningReviewDeck.isEmpty;
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Custom SRS'),
+        actions: [
+          if (_tabController.index != 2)
+            Row(
+              children: [
+                const Text('Kanji'),
+                Switch(
+                  value: _useKanji,
+                  onChanged: (value) {
+                    setState(() {
+                      _useKanji = value;
+                    });
+                  },
+                ),
+              ],
+            ),
+        ],
+        bottom: TabBar(
+          controller: _tabController,
+          tabs: const [
+            Tab(text: 'Jpn→Eng'),
+            Tab(text: 'Eng→Jpn'),
+            Tab(text: 'Listening'),
+          ],
+        ),
+      ),
+      body: _deck.isEmpty
+          ? const Center(child: Text('Add cards to start quizzing!'))
+          : allDecksEmpty
+          ? const Center(child: Text('No cards due for review.'))
+          : TabBarView(
+              controller: _tabController,
+              children: [
+                CustomQuizScreen(
+                  key: _quizScreenKeys[0],
+                  deck: jpnToEngReviewDeck,
+                  quizMode: CustomQuizMode.japaneseToEnglish,
+                  onCardReviewed: _updateCard,
+                  useKanji: _useKanji,
+                  isActive: _tabController.index == 0,
+                ),
+                CustomQuizScreen(
+                  key: _quizScreenKeys[1],
+                  deck: engToJpnReviewDeck,
+                  quizMode: CustomQuizMode.englishToJapanese,
+                  onCardReviewed: _updateCard,
+                  useKanji: _useKanji,
+                  isActive: _tabController.index == 1,
+                ),
+                CustomQuizScreen(
+                  key: _quizScreenKeys[2],
+                  deck: listeningReviewDeck,
+                  quizMode: CustomQuizMode.listeningComprehension,
+                  onCardReviewed: _updateCard,
+                  useKanji: _useKanji,
+                  isActive: _tabController.index == 2,
+                ),
+              ],
+            ),
+    );
+  }
+}

lib/src/screens/home_screen.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import '../models/kanji_item.dart';
+import '../models/srs_item.dart';
 import '../services/deck_repository.dart';
 import '../services/distractor_generator.dart';
 import '../widgets/kanji_card.dart';
@@ -18,40 +19,70 @@ class _ReadingInfo {
   _ReadingInfo(this.correctReadings, this.hint);
 }
 
+class _QuizState {
+  KanjiItem? current;
+  List<String> options = [];
+  List<String> correctAnswers = [];
+  String readingHint = '';
+  int score = 0;
+  int asked = 0;
+  Key key = UniqueKey();
+  String? selectedOption;
+  bool showResult = false;
+  Set<int> wrongItems = {};
+}
+
 class HomeScreen extends StatefulWidget {
-  const HomeScreen({super.key});
+  const HomeScreen({super.key, this.distractorGenerator});
+
+  final DistractorGenerator? distractorGenerator;
 
   @override
   State<HomeScreen> createState() => _HomeScreenState();
 }
 
-class _HomeScreenState extends State<HomeScreen> {
+class _HomeScreenState extends State<HomeScreen>
+    with SingleTickerProviderStateMixin {
+  late TabController _tabController;
   List<KanjiItem> _deck = [];
   bool _loading = false;
+  bool _isAnswering = false;
   String _status = 'Loading deck...';
-  final DistractorGenerator _dg = DistractorGenerator();
+  late final DistractorGenerator _dg;
   final Random _random = Random();
   final _audioPlayer = AudioPlayer();
 
-  QuizMode _mode = QuizMode.kanjiToEnglish;
-  KanjiItem? _current;
-  List<String> _options = [];
-  List<String> _correctAnswers = [];
-  String _readingHint = '';
-  int _score = 0;
-  int _asked = 0;
+  final _quizStates = [_QuizState(), _QuizState(), _QuizState()];
+  final _sessionDecks = <int, List<KanjiItem>>{};
+  final _sessionDeckSizes = <int, int>{};
+  _QuizState get _currentQuizState => _quizStates[_tabController.index];
+
+  bool _playIncorrectSound = true;
   bool _playCorrectSound = true;
+  bool _apiKeyMissing = false;
 
   @override
   void initState() {
     super.initState();
+    _tabController = TabController(length: 3, vsync: this);
+    _tabController.addListener(() {
+      setState(() {});
+    });
+    _dg = widget.distractorGenerator ?? DistractorGenerator();
     _loadSettings();
     _loadDeck();
   }
 
+  @override
+  void dispose() {
+    _tabController.dispose();
+    super.dispose();
+  }
+
   Future<void> _loadSettings() async {
     final prefs = await SharedPreferences.getInstance();
     setState(() {
+      _playIncorrectSound = prefs.getBool('playIncorrectSound') ?? true;
       _playCorrectSound = prefs.getBool('playCorrectSound') ?? true;
     });
   }
@@ -68,11 +99,10 @@ class _HomeScreenState extends State<HomeScreen> {
       final apiKey = repo.apiKey;
 
       if (apiKey == null || apiKey.isEmpty) {
-        if (mounted) {
-          Navigator.of(context).pushReplacement(
-            MaterialPageRoute(builder: (_) => const SettingsScreen()),
-          );
-        }
+        setState(() {
+          _apiKeyMissing = true;
+          _loading = false;
+        });
         return;
       }
 
@@ -88,9 +118,55 @@ class _HomeScreenState extends State<HomeScreen> {
         _deck = items;
         _status = 'Loaded ${items.length} kanji';
         _loading = false;
+        _apiKeyMissing = false;
       });
 
-      _nextQuestion();
+      final disabledLevels = <int>{};
+      final itemsByLevel = <int, List<KanjiItem>>{};
+      for (final item in _deck) {
+        (itemsByLevel[item.level] ??= []).add(item);
+      }
+
+      itemsByLevel.forEach((level, items) {
+        final allSrsItems = items
+            .expand((item) => item.srsItems.values)
+            .toList();
+        if (allSrsItems.isNotEmpty &&
+            allSrsItems.every((srs) => srs.disabled)) {
+          disabledLevels.add(level);
+        }
+      });
+
+      for (var i = 0; i < _tabController.length; i++) {
+        final mode = _modeForIndex(i);
+        final filteredDeck = _deck.where((item) {
+          if (disabledLevels.contains(item.level)) {
+            return false;
+          }
+
+          if (mode == QuizMode.reading) {
+            final onyomiSrs = item.srsItems['${QuizMode.reading}onyomi'];
+            final kunyomiSrs = item.srsItems['${QuizMode.reading}kunyomi'];
+            final hasOnyomi =
+                item.onyomi.isNotEmpty &&
+                (onyomiSrs == null || !onyomiSrs.disabled);
+            final hasKunyomi =
+                item.kunyomi.isNotEmpty &&
+                (kunyomiSrs == null || !kunyomiSrs.disabled);
+            return hasOnyomi || hasKunyomi;
+          }
+          final srsItem = item.srsItems[mode.toString()];
+          return srsItem == null || !srsItem.disabled;
+        }).toList();
+
+        filteredDeck.shuffle(_random);
+        _sessionDecks[i] = filteredDeck;
+        _sessionDeckSizes[i] = filteredDeck.length;
+      }
+
+      for (var i = 0; i < _tabController.length; i++) {
+        _nextQuestion(i);
+      }
     } catch (e) {
       setState(() {
         _status = 'Error: $e';
@@ -120,125 +196,147 @@ class _HomeScreenState extends State<HomeScreen> {
     return _ReadingInfo(readingsList, hint);
   }
 
-  void _nextQuestion() {
-    _deck.sort((a, b) {
-      String srsKey(KanjiItem item) {
-        var key = _mode.toString();
-        if (_mode == QuizMode.reading) {
-          if (item.onyomi.isNotEmpty && item.kunyomi.isNotEmpty) {
-            key += _random.nextBool() ? 'onyomi' : 'kunyomi';
-          } else if (item.onyomi.isNotEmpty) {
-            key += 'onyomi';
-          } else {
-            key += 'kunyomi';
-          }
-        }
-        return key;
-      }
+  QuizMode _modeForIndex(int index) {
+    switch (index) {
+      case 0:
+        return QuizMode.kanjiToEnglish;
+      case 1:
+        return QuizMode.englishToKanji;
+      case 2:
+        return QuizMode.reading;
+      default:
+        return QuizMode.kanjiToEnglish;
+    }
+  }
 
-      final aSrsItem = a.srsItems[srsKey(a)];
-      final bSrsItem = b.srsItems[srsKey(b)];
+  void _nextQuestion([int? index]) {
+    final tabIndex = index ?? _tabController.index;
+    final quizState = _quizStates[tabIndex];
+    final sessionDeck = _sessionDecks[tabIndex];
+    final mode = _modeForIndex(tabIndex);
 
-      final aStage = aSrsItem?.srsStage ?? 0;
-      final bStage = bSrsItem?.srsStage ?? 0;
+    if (sessionDeck == null || sessionDeck.isEmpty) {
+      setState(() {
+        quizState.current = null;
+        _status = 'Quiz complete!';
+      });
+      return;
+    }
 
-      if (aStage != bStage) {
-        return aStage.compareTo(bStage);
-      }
+    quizState.current = sessionDeck.removeAt(0);
+    quizState.key = UniqueKey();
 
-      final aLastAsked =
-          aSrsItem?.lastAsked ?? DateTime.fromMillisecondsSinceEpoch(0);
-      final bLastAsked =
-          bSrsItem?.lastAsked ?? DateTime.fromMillisecondsSinceEpoch(0);
+    quizState.correctAnswers = [];
+    quizState.options = [];
+    quizState.readingHint = '';
+    quizState.selectedOption = null;
+    quizState.showResult = false;
 
-      if (aLastAsked != bLastAsked) {
-        return aLastAsked.compareTo(bLastAsked);
-      }
-
-      return _random.nextDouble().compareTo(_random.nextDouble());
-    });
-
-    _current = _deck.first;
-
-    _correctAnswers = [];
-    _options = [];
-    _readingHint = '';
-
-    switch (_mode) {
+    switch (mode) {
       case QuizMode.kanjiToEnglish:
-        _correctAnswers = [_current!.meanings.first];
-        _options = [
-          _correctAnswers.first,
-          ..._dg.generateMeanings(_current!, _deck, 3)
-        ].map(_toTitleCase).toList()
-          ..shuffle();
+        quizState.correctAnswers = [quizState.current!.meanings.first];
+        quizState.options = [
+          quizState.correctAnswers.first,
+          ..._dg.generateMeanings(quizState.current!, _deck, 3),
+        ].map(_toTitleCase).toList()..shuffle();
         break;
 
       case QuizMode.englishToKanji:
-        _correctAnswers = [_current!.characters];
-        _options = [
-          _correctAnswers.first,
-          ..._dg.generateKanji(_current!, _deck, 3)
+        quizState.correctAnswers = [quizState.current!.characters];
+        quizState.options = [
+          quizState.correctAnswers.first,
+          ..._dg.generateKanji(quizState.current!, _deck, 3),
         ]..shuffle();
         break;
 
       case QuizMode.reading:
-        final info = _pickReading(_current!);
-        _correctAnswers = info.correctReadings;
-        _readingHint = info.hint;
+        final info = _pickReading(quizState.current!);
+        quizState.correctAnswers = info.correctReadings;
+        quizState.readingHint = info.hint;
 
-        final readingsSource = _readingHint.contains("on'yomi")
+        final readingsSource = quizState.readingHint.contains("on'yomi")
             ? _deck.expand((k) => k.onyomi)
             : _deck.expand((k) => k.kunyomi);
 
-        final distractors = readingsSource
-            .where((r) => !_correctAnswers.contains(r))
-            .toSet()
-            .toList()
-          ..shuffle();
-        _options = ([
-          _correctAnswers[_random.nextInt(_correctAnswers.length)],
-          ...distractors.take(3)
-        ])
-          ..shuffle();
+        final distractors =
+            readingsSource
+                .where((r) => !quizState.correctAnswers.contains(r))
+                .toSet()
+                .toList()
+              ..shuffle();
+        quizState.options = ([
+          quizState.correctAnswers[_random.nextInt(
+            quizState.correctAnswers.length,
+          )],
+          ...distractors.take(3),
+        ])..shuffle();
+        break;
+      default:
         break;
     }
 
-    setState(() {});
+    setState(() {
+      _isAnswering = false;
+    });
   }
 
   void _answer(String option) async {
-    final isCorrect = _correctAnswers
+    final quizState = _currentQuizState;
+    final mode = _modeForIndex(_tabController.index);
+    final isCorrect = quizState.correctAnswers
         .map((a) => a.toLowerCase().trim())
         .contains(option.toLowerCase().trim());
 
     final repo = Provider.of<DeckRepository>(context, listen: false);
-    final current = _current!;
+    final current = quizState.current!;
+    final tabIndex = _tabController.index;
+    final sessionDeck = _sessionDecks[tabIndex]!;
 
     String readingType = '';
-    if (_mode == QuizMode.reading) {
-      readingType = _readingHint.contains("on'yomi") ? 'onyomi' : 'kunyomi';
+    if (mode == QuizMode.reading) {
+      readingType = quizState.readingHint.contains("on'yomi")
+          ? 'onyomi'
+          : 'kunyomi';
     }
-    final srsKey = _mode.toString() + readingType;
+    final srsKey = mode.toString() + readingType;
 
     var srsItem = current.srsItems[srsKey];
     final isNew = srsItem == null;
-    final srsItemForUpdate = srsItem ??=
-        SrsItem(kanjiId: current.id, quizMode: _mode, readingType: readingType);
-    setState(() {
-      _asked += 1;
-      if (isCorrect) {
-        _score += 1;
-        srsItemForUpdate.srsStage += 1;
-        if (_playCorrectSound) {
-          _audioPlayer.play(AssetSource('sfx/confirm.mp3'));
-        }
-      } else {
-        srsItemForUpdate.srsStage = max(0, srsItemForUpdate.srsStage - 1);
+    final srsItemForUpdate = srsItem ??= SrsItem(
+      subjectId: current.id,
+      quizMode: mode,
+      readingType: readingType,
+    );
+
+    quizState.selectedOption = option;
+
+    quizState.showResult = true;
+
+    setState(() {});
+
+    if (isCorrect) {
+      quizState.asked += 1;
+      if (!quizState.wrongItems.contains(current.id)) {
+        quizState.score += 1;
       }
-      srsItemForUpdate.lastAsked = DateTime.now();
-      current.srsItems[srsKey] = srsItemForUpdate;
-    });
+      srsItemForUpdate.srsStage += 1;
+      if (_playCorrectSound) {
+        _audioPlayer.play(AssetSource('sfx/correct.wav'));
+      }
+    } else {
+      srsItemForUpdate.srsStage = max(0, srsItemForUpdate.srsStage - 1);
+      sessionDeck.add(current);
+      sessionDeck.shuffle(_random);
+      quizState.wrongItems.add(current.id);
+      if (_playIncorrectSound) {
+        _audioPlayer.play(AssetSource('sfx/incorrect.wav'));
+      }
+    }
+    srsItemForUpdate.lastAsked = DateTime.now();
+    current.srsItems[srsKey] = srsItemForUpdate;
+
+    final scaffoldMessenger = ScaffoldMessenger.of(context);
+    final theme = Theme.of(context);
 
     if (isNew) {
       await repo.insertSrsItem(srsItemForUpdate);
@@ -246,152 +344,217 @@ class _HomeScreenState extends State<HomeScreen> {
       await repo.updateSrsItem(srsItemForUpdate);
     }
 
-    final correctDisplay = (_mode == QuizMode.kanjiToEnglish)
-        ? _toTitleCase(_correctAnswers.first)
-        : (_mode == QuizMode.reading
-            ? _correctAnswers.join(', ')
-            : _correctAnswers.first);
+    final correctDisplay = (mode == QuizMode.kanjiToEnglish)
+        ? _toTitleCase(quizState.correctAnswers.first)
+        : (mode == QuizMode.reading
+              ? quizState.correctAnswers.join(', ')
+              : quizState.correctAnswers.first);
 
     final snack = SnackBar(
       content: Text(
         isCorrect ? 'Correct!' : 'Wrong — correct: $correctDisplay',
         style: TextStyle(
-          color: isCorrect ? Colors.greenAccent : Colors.redAccent,
+          color: isCorrect
+              ? theme.colorScheme.primary
+              : theme.colorScheme.error,
           fontWeight: FontWeight.bold,
         ),
       ),
-      backgroundColor: const Color(0xFF222222),
+      backgroundColor: theme.colorScheme.surfaceContainerHighest,
       duration: const Duration(milliseconds: 900),
     );
     if (mounted) {
-      ScaffoldMessenger.of(context).showSnackBar(snack);
+      scaffoldMessenger.showSnackBar(snack);
     }
 
-    Future.delayed(const Duration(milliseconds: 900), _nextQuestion);
+    setState(() {
+      _isAnswering = true;
+    });
+
+    Future.delayed(const Duration(milliseconds: 900), () {
+      if (mounted) {
+        _nextQuestion();
+      }
+    });
   }
 
   @override
   Widget build(BuildContext context) {
-    String prompt = '';
-    String subtitle = '';
+    if (_apiKeyMissing) {
+      return Scaffold(
+        appBar: AppBar(title: const Text('Kanji Quiz')),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Text(
+                'WaniKani API key is not set.',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+              const SizedBox(height: 16),
+              ElevatedButton(
+                onPressed: () async {
+                  await Navigator.of(context).push(
+                    MaterialPageRoute(builder: (_) => const SettingsScreen()),
+                  );
+                  _loadDeck();
+                },
+                child: const Text('Go to Settings'),
+              ),
+            ],
+          ),
+        ),
+      );
+    }
 
-    switch (_mode) {
-      case QuizMode.kanjiToEnglish:
-        prompt = _current?.characters ?? '';
-        break;
-      case QuizMode.englishToKanji:
-        prompt = _current != null ? _toTitleCase(_current!.meanings.first) : '';
-        break;
-      case QuizMode.reading:
-        prompt = _current?.characters ?? '';
-        subtitle = _readingHint;
-        break;
+    if (_loading) {
+      return Scaffold(
+        appBar: AppBar(
+          title: const Text('Kanji Quiz'),
+          bottom: TabBar(
+            controller: _tabController,
+            tabs: const [
+              Tab(text: 'Kanji→English'),
+              Tab(text: 'English→Kanji'),
+              Tab(text: 'Reading'),
+            ],
+          ),
+        ),
+        body: const Center(child: CircularProgressIndicator()),
+      );
     }
 
     return Scaffold(
-      backgroundColor: const Color(0xFF121212),
       appBar: AppBar(
-        title: const Text('WaniKani Kanji SRS'),
-        backgroundColor: const Color(0xFF1F1F1F),
-        foregroundColor: Colors.white,
-        elevation: 2,
-        actions: [
-          IconButton(
-            icon: const Icon(Icons.settings),
-            onPressed: () async {
-              await Navigator.of(context).push(
-                MaterialPageRoute(builder: (_) => const SettingsScreen()),
-              );
-              _loadSettings();
-            },
-          )
-        ],
-      ),
-      body: Padding(
-        padding: const EdgeInsets.all(16.0),
-        child: Column(
-          children: [
-            Row(
-              children: [
-                Expanded(
-                  child: Text(
-                    _status,
-                    style: const TextStyle(color: Colors.white),
-                  ),
-                ),
-                if (_loading)
-                  const CircularProgressIndicator(color: Colors.blueAccent),
-              ],
-            ),
-            const SizedBox(height: 12),
-            Wrap(
-              spacing: 6,
-              runSpacing: 4,
-              alignment: WrapAlignment.center,
-              children: [
-                _buildChoiceChip('Kanji→English', QuizMode.kanjiToEnglish),
-                _buildChoiceChip('English→Kanji', QuizMode.englishToKanji),
-                _buildChoiceChip('Reading', QuizMode.reading),
-              ],
-            ),
-            const SizedBox(height: 18),
-            Expanded(
-              flex: 3,
-              child: Center(
-                child: ConstrainedBox(
-                  constraints: const BoxConstraints(
-                    minWidth: 0,
-                    maxWidth: 500,
-                    minHeight: 150,
-                  ),
-                  child: KanjiCard(
-                    characters: prompt,
-                    subtitle: subtitle,
-                    backgroundColor: const Color(0xFF1E1E1E),
-                    textColor: Colors.white,
-                  ),
-                ),
-              ),
-            ),
-            const SizedBox(height: 12),
-            SafeArea(
-              top: false,
-              child: Column(
-                children: [
-                  OptionsGrid(
-                    options: _options,
-                    onSelected: _answer,
-                    buttonColor: const Color(0xFF1E1E1E),
-                    textColor: Colors.white,
-                  ),
-                  const SizedBox(height: 8),
-                  Text(
-                    'Score: $_score / $_asked',
-                    style: const TextStyle(color: Colors.white),
-                  ),
-                ],
-              ),
-            ),
+        title: const Text('Kanji Quiz'),
+        bottom: TabBar(
+          controller: _tabController,
+          tabs: const [
+            Tab(text: 'Kanji→English'),
+            Tab(text: 'English→Kanji'),
+            Tab(text: 'Reading'),
           ],
         ),
       ),
+      backgroundColor: Theme.of(context).colorScheme.surface,
+      body: TabBarView(
+        controller: _tabController,
+        children: [_buildQuizPage(0), _buildQuizPage(1), _buildQuizPage(2)],
+      ),
     );
   }
 
-  ChoiceChip _buildChoiceChip(String label, QuizMode mode) {
-    final selected = _mode == mode;
-    return ChoiceChip(
-      label: Text(
-        label,
-        style: TextStyle(color: selected ? Colors.white : Colors.grey[400]),
+  Widget _buildQuizPage(int index) {
+    final quizState = _quizStates[index];
+    final mode = _modeForIndex(index);
+
+    if (quizState.current == null) {
+      return Center(
+        child: Text(
+          _status,
+          style: TextStyle(
+            fontSize: 24,
+            color: Theme.of(context).colorScheme.onSurface,
+          ),
+        ),
+      );
+    }
+
+    String prompt = '';
+    String subtitle = '';
+
+    if (quizState.current != null) {
+      switch (mode) {
+        case QuizMode.kanjiToEnglish:
+          prompt = quizState.current!.characters;
+          break;
+        case QuizMode.englishToKanji:
+          prompt = _toTitleCase(quizState.current!.meanings.first);
+          break;
+        case QuizMode.reading:
+          prompt = quizState.current!.characters;
+          subtitle = quizState.readingHint;
+          break;
+        default:
+          break;
+      }
+    }
+
+    return Padding(
+      key: quizState.key,
+      padding: const EdgeInsets.all(16.0),
+      child: Column(
+        children: [
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                '${quizState.asked} / ${_sessionDeckSizes[index] ?? 0}',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                  fontSize: 18,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+              const SizedBox(height: 4),
+              LinearProgressIndicator(
+                value: (_sessionDeckSizes[index] ?? 0) > 0
+                    ? quizState.asked / (_sessionDeckSizes[index] ?? 1)
+                    : 0,
+                backgroundColor: Theme.of(
+                  context,
+                ).colorScheme.surfaceContainerHighest,
+                valueColor: AlwaysStoppedAnimation<Color>(
+                  Theme.of(context).colorScheme.primary,
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 18),
+          Expanded(
+            flex: 3,
+            child: Center(
+              child: ConstrainedBox(
+                constraints: const BoxConstraints(
+                  minWidth: 0,
+                  maxWidth: 500,
+                  minHeight: 150,
+                ),
+                child: KanjiCard(
+                  characters: prompt,
+                  subtitle: subtitle,
+                  backgroundColor: Theme.of(context).colorScheme.surface,
+                  textColor: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+            ),
+          ),
+          const SizedBox(height: 12),
+          SafeArea(
+            top: false,
+            child: Column(
+              children: [
+                OptionsGrid(
+                  options: quizState.options,
+                  onSelected: _isAnswering ? (option) {} : _answer,
+                  showResult: quizState.showResult,
+                  selectedOption: quizState.selectedOption,
+                  correctAnswers: quizState.correctAnswers,
+                ),
+                const SizedBox(height: 8),
+                Text(
+                  'Score: ${quizState.score} / ${quizState.asked}',
+                  style: TextStyle(
+                    color: Theme.of(context).colorScheme.onSurface,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
       ),
-      selected: selected,
-      onSelected: (v) {
-        setState(() => _mode = mode);
-        _nextQuestion();
-      },
-      selectedColor: Colors.blueAccent,
-      backgroundColor: const Color(0xFF1E1E1E),
     );
   }
 }

lib/src/screens/settings_screen.dart

@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+import 'package:hirameki_srs/src/models/theme_model.dart';
+import 'package:hirameki_srs/src/themes.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import '../services/deck_repository.dart';
@@ -13,8 +15,9 @@ class SettingsScreen extends StatefulWidget {
 
 class _SettingsScreenState extends State<SettingsScreen> {
   final TextEditingController _apiKeyController = TextEditingController();
-  bool _playAudio = true;
+  bool _playIncorrectSound = true;
   bool _playCorrectSound = true;
+  bool _playNarrator = true;
 
   @override
   void dispose() {
@@ -37,8 +40,9 @@ class _SettingsScreenState extends State<SettingsScreen> {
   Future<void> _loadSettings() async {
     final prefs = await SharedPreferences.getInstance();
     setState(() {
-      _playAudio = prefs.getBool('playAudio') ?? true;
+      _playIncorrectSound = prefs.getBool('playIncorrectSound') ?? true;
       _playCorrectSound = prefs.getBool('playCorrectSound') ?? true;
+      _playNarrator = prefs.getBool('playNarrator') ?? true;
     });
   }
 
@@ -50,24 +54,26 @@ class _SettingsScreenState extends State<SettingsScreen> {
     await repo.setApiKey(apiKey);
 
     if (mounted) {
-      ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(content: Text('API key saved!')),
-      );
+      ScaffoldMessenger.of(
+        context,
+      ).showSnackBar(const SnackBar(content: Text('API key saved!')));
 
-      Navigator.of(context).pushReplacement(
-        MaterialPageRoute(builder: (_) => const HomeScreen()),
-      );
+      Navigator.of(
+        context,
+      ).pushReplacement(MaterialPageRoute(builder: (_) => const HomeScreen()));
     }
   }
 
   @override
   Widget build(BuildContext context) {
+    final themeModel = Provider.of<ThemeModel>(context);
+
     return Scaffold(
-      backgroundColor: const Color(0xFF121212),
+      backgroundColor: Theme.of(context).colorScheme.surface,
       appBar: AppBar(
         title: const Text('Settings'),
-        backgroundColor: const Color(0xFF1F1F1F),
-        foregroundColor: Colors.white,
+        backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
+        foregroundColor: Theme.of(context).colorScheme.onSurface,
       ),
       body: Padding(
         padding: const EdgeInsets.all(16.0),
@@ -76,15 +82,19 @@ class _SettingsScreenState extends State<SettingsScreen> {
             TextField(
               controller: _apiKeyController,
               obscureText: true,
-              style: const TextStyle(color: Colors.white),
+              style: TextStyle(color: Theme.of(context).colorScheme.onSurface),
               decoration: InputDecoration(
                 labelText: 'WaniKani API Key',
-                labelStyle: const TextStyle(color: Colors.grey),
+                labelStyle: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
+                ),
                 filled: true,
-                fillColor: const Color(0xFF1E1E1E),
+                fillColor: Theme.of(context).colorScheme.surfaceContainer,
                 border: OutlineInputBorder(
                   borderRadius: BorderRadius.circular(6),
-                  borderSide: const BorderSide(color: Colors.grey),
+                  borderSide: BorderSide(
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
                 ),
               ),
             ),
@@ -92,37 +102,43 @@ class _SettingsScreenState extends State<SettingsScreen> {
             ElevatedButton(
               onPressed: _saveApiKey,
               style: ElevatedButton.styleFrom(
-                backgroundColor: Colors.blueAccent,
-                foregroundColor: Colors.white,
+                backgroundColor: Theme.of(context).colorScheme.primary,
+                foregroundColor: Theme.of(context).colorScheme.onPrimary,
               ),
               child: const Text('Save & Start Quiz'),
             ),
             const SizedBox(height: 24),
             SwitchListTile(
-              title: const Text(
-                'Play audio for vocabulary',
-                style: TextStyle(color: Colors.white),
+              title: Text(
+                'Play incorrect sound',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
               ),
-              value: _playAudio,
+              value: _playIncorrectSound,
               onChanged: (value) async {
                 final prefs = await SharedPreferences.getInstance();
-                prefs.setBool('playAudio', value);
+                prefs.setBool('playIncorrectSound', value);
                 setState(() {
-                  _playAudio = value;
+                  _playIncorrectSound = value;
                 });
               },
-              activeThumbColor: Colors.blueAccent,
-              inactiveThumbColor: Colors.grey,
-              tileColor: const Color(0xFF1E1E1E),
+              activeThumbColor: Theme.of(context).colorScheme.primary,
+              inactiveThumbColor: Theme.of(
+                context,
+              ).colorScheme.onSurfaceVariant,
+              tileColor: Theme.of(context).colorScheme.surfaceContainer,
               shape: RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(6),
               ),
             ),
             const SizedBox(height: 12),
             SwitchListTile(
-              title: const Text(
-                'Play sound on correct answer',
-                style: TextStyle(color: Colors.white),
+              title: Text(
+                'Play correct sound',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
               ),
               value: _playCorrectSound,
               onChanged: (value) async {
@@ -132,9 +148,75 @@ class _SettingsScreenState extends State<SettingsScreen> {
                   _playCorrectSound = value;
                 });
               },
-              activeThumbColor: Colors.blueAccent,
-              inactiveThumbColor: Colors.grey,
-              tileColor: const Color(0xFF1E1E1E),
+              activeThumbColor: Theme.of(context).colorScheme.primary,
+              inactiveThumbColor: Theme.of(
+                context,
+              ).colorScheme.onSurfaceVariant,
+              tileColor: Theme.of(context).colorScheme.surfaceContainer,
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(6),
+              ),
+            ),
+            const SizedBox(height: 12),
+            SwitchListTile(
+              title: Text(
+                'Play narrator (TTS)',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+              value: _playNarrator,
+              onChanged: (value) async {
+                final prefs = await SharedPreferences.getInstance();
+                prefs.setBool('playNarrator', value);
+                setState(() {
+                  _playNarrator = value;
+                });
+              },
+              activeThumbColor: Theme.of(context).colorScheme.primary,
+              inactiveThumbColor: Theme.of(
+                context,
+              ).colorScheme.onSurfaceVariant,
+              tileColor: Theme.of(context).colorScheme.surfaceContainer,
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(6),
+              ),
+            ),
+            const SizedBox(height: 12),
+            ListTile(
+              title: Text(
+                'Theme',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+              trailing: DropdownButton<ThemeData>(
+                value: themeModel.currentTheme,
+                dropdownColor: Theme.of(context).colorScheme.surfaceContainer,
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+                items: [
+                  DropdownMenuItem(
+                    value: Themes.dark,
+                    child: const Text('Dark'),
+                  ),
+                  DropdownMenuItem(
+                    value: Themes.light,
+                    child: const Text('Light'),
+                  ),
+                  DropdownMenuItem(
+                    value: Themes.nier,
+                    child: const Text('Nier'),
+                  ),
+                ],
+                onChanged: (theme) {
+                  if (theme != null) {
+                    themeModel.setTheme(theme);
+                  }
+                },
+              ),
+              tileColor: Theme.of(context).colorScheme.surfaceContainer,
               shape: RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(6),
               ),

lib/src/screens/start_screen.dart

@@ -1,134 +1,137 @@
 import 'package:flutter/material.dart';
-import 'package:provider/provider.dart';
-import '../services/deck_repository.dart';
+import 'package:hirameki_srs/src/screens/settings_screen.dart';
 import 'browse_screen.dart';
 import 'home_screen.dart';
 import 'vocab_screen.dart';
+import 'custom_srs_screen.dart';
 
-class StartScreen extends StatefulWidget {
+class StartScreen extends StatelessWidget {
   const StartScreen({super.key});
 
-  @override
-  State<StartScreen> createState() => _StartScreenState();
-}
-
-class _StartScreenState extends State<StartScreen> {
-  bool _loading = true;
-  bool _hasApiKey = false;
-
-  @override
-  void initState() {
-    super.initState();
-    _checkApiKey();
-  }
-
-  Future<void> _checkApiKey() async {
-    final repo = Provider.of<DeckRepository>(context, listen: false);
-    await repo.loadApiKey();
-    // TODO: Remove this before release. This is for development purposes only.
-    if (repo.apiKey == null || repo.apiKey!.isEmpty) {
-      await repo.setApiKey('91932463-60d2-4552-95a7-4c23cf358189');
-    }
-
-    setState(() {
-      _hasApiKey = repo.apiKey != null && repo.apiKey!.isNotEmpty;
-      _loading = false;
-    });
-  }
-
   @override
   Widget build(BuildContext context) {
-    if (_loading) {
-      return const Scaffold(
-        backgroundColor: Color(0xFF121212),
-        body: Center(
-          child: CircularProgressIndicator(color: Colors.blueAccent),
-        ),
-      );
-    }
-
     return Scaffold(
-      backgroundColor: const Color(0xFF121212),
-      body: Center(
+      appBar: AppBar(
+        title: const Text('Hirameki SRS'),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.settings),
+            onPressed: () {
+              Navigator.of(
+                context,
+              ).push(MaterialPageRoute(builder: (_) => const SettingsScreen()));
+            },
+          ),
+        ],
+      ),
+      body: Container(
+        decoration: BoxDecoration(
+          gradient: LinearGradient(
+            colors: [
+              Theme.of(context).colorScheme.surface,
+              Theme.of(context).colorScheme.surface,
+            ],
+            begin: Alignment.topLeft,
+            end: Alignment.bottomRight,
+          ),
+        ),
+        child: GridView.count(
+          crossAxisCount: 2,
+          padding: const EdgeInsets.all(16),
+          crossAxisSpacing: 16,
+          mainAxisSpacing: 16,
+          childAspectRatio: 0.8,
+          children: [
+            _buildModeCard(
+              context,
+              title: 'Kanji Quiz',
+              icon: Icons.extension,
+              description: 'Test your knowledge of kanji characters.',
+              onTap: () {
+                Navigator.of(
+                  context,
+                ).push(MaterialPageRoute(builder: (_) => const HomeScreen()));
+              },
+            ),
+            _buildModeCard(
+              context,
+              title: 'Vocabulary Quiz',
+              icon: Icons.school,
+              description: 'Practice vocabulary from your WaniKani deck.',
+              onTap: () {
+                Navigator.of(
+                  context,
+                ).push(MaterialPageRoute(builder: (_) => const VocabScreen()));
+              },
+            ),
+            _buildModeCard(
+              context,
+              title: 'Browse Items',
+              icon: Icons.grid_view,
+              description: 'Look through your kanji and vocabulary decks.',
+              onTap: () {
+                Navigator.of(
+                  context,
+                ).push(MaterialPageRoute(builder: (_) => const BrowseScreen()));
+              },
+            ),
+            _buildModeCard(
+              context,
+              title: 'Custom SRS',
+              icon: Icons.create,
+              description: 'Create and study your own custom flashcards.',
+              onTap: () {
+                Navigator.of(context).push(
+                  MaterialPageRoute(builder: (_) => const CustomSrsScreen()),
+                );
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildModeCard(
+    BuildContext context, {
+    required String title,
+    required IconData icon,
+    required String description,
+    required VoidCallback onTap,
+  }) {
+    return Card(
+      elevation: 4,
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+      child: InkWell(
+        onTap: onTap,
+        borderRadius: BorderRadius.circular(12),
         child: Padding(
-          padding: const EdgeInsets.all(32),
+          padding: const EdgeInsets.all(16.0),
           child: Column(
             mainAxisAlignment: MainAxisAlignment.center,
             children: [
-              Text(
-                'Welcome to WaniKani Kanji SRS!',
-                style: Theme.of(context)
-                    .textTheme
-                    .headlineMedium
-                    ?.copyWith(fontSize: 28, color: Colors.white),
-                textAlign: TextAlign.center,
+              Icon(
+                icon,
+                size: 48,
+                color: Theme.of(context).colorScheme.primary,
               ),
               const SizedBox(height: 16),
               Text(
-                _hasApiKey
-                    ? 'Your API key is set. You can start the quiz!'
-                    : 'Before you start, please set up your WaniKani API key in the settings.',
-                style: Theme.of(context)
-                    .textTheme
-                    .bodyMedium
-                    ?.copyWith(color: Colors.grey[300]),
+                title,
+                style: Theme.of(
+                  context,
+                ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
                 textAlign: TextAlign.center,
               ),
-              const SizedBox(height: 32),
-              ElevatedButton(
-                onPressed: () {
-                  Navigator.of(context).push(
-                    MaterialPageRoute(builder: (_) => HomeScreen()),
-                  );
-                },
-                style: ElevatedButton.styleFrom(
-                  backgroundColor: Colors.blueAccent,
-                  foregroundColor: Colors.white,
-                  padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
-                  shape: RoundedRectangleBorder(
-                      borderRadius: BorderRadius.circular(12)),
-                ),
-                child: const Text(
-                  'Kanji Quiz',
-                  style: TextStyle(fontSize: 18),
-                ),
-              ),
-              const SizedBox(height: 16),
-              ElevatedButton(
-                onPressed: () {
-                  Navigator.of(context).push(
-                    MaterialPageRoute(builder: (_) => const VocabScreen()),
-                  );
-                },
-                style: ElevatedButton.styleFrom(
-                  backgroundColor: Colors.blueAccent,
-                  foregroundColor: Colors.white,
-                  padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
-                  shape: RoundedRectangleBorder(
-                      borderRadius: BorderRadius.circular(12)),
-                ),
-                child: const Text(
-                  'Vocabulary Quiz',
-                  style: TextStyle(fontSize: 18),
-                ),
-              ),
-              const SizedBox(height: 16),
-              ElevatedButton(
-                onPressed: () {
-                  Navigator.of(context).push(
-                    MaterialPageRoute(builder: (_) => const BrowseScreen()),
-                  );
-                },
-                style: ElevatedButton.styleFrom(
-                  backgroundColor: Colors.deepPurpleAccent,
-                  foregroundColor: Colors.white,
-                  padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
-                  shape: RoundedRectangleBorder(
-                      borderRadius: BorderRadius.circular(12)),
-                ),
-                child: const Text(
-                  'Browse Items',
-                  style: TextStyle(fontSize: 18),
+              const SizedBox(height: 8),
+              Expanded(
+                child: Text(
+                  description,
+                  style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
+                  textAlign: TextAlign.center,
+                  softWrap: true,
                 ),
               ),
             ],

lib/src/screens/vocab_screen.dart

@@ -3,14 +3,27 @@ import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import '../models/kanji_item.dart';
-import '../services/deck_repository.dart';
+import '../models/vocabulary_item.dart';
+import '../models/srs_item.dart';
+import 'package:hirameki_srs/src/services/vocab_deck_repository.dart';
 import '../services/distractor_generator.dart';
 import '../widgets/kanji_card.dart';
 import '../widgets/options_grid.dart';
 import 'package:audioplayers/audioplayers.dart';
 import 'settings_screen.dart';
 
+class _QuizState {
+  VocabularyItem? current;
+  List<String> options = [];
+  List<String> correctAnswers = [];
+  int score = 0;
+  int asked = 0;
+  Key key = UniqueKey();
+  String? selectedOption;
+  bool showResult = false;
+  Set<int> wrongItems = {};
+}
+
 class VocabScreen extends StatefulWidget {
   const VocabScreen({super.key});
 
@@ -18,34 +31,53 @@ class VocabScreen extends StatefulWidget {
   State<VocabScreen> createState() => _VocabScreenState();
 }
 
-class _VocabScreenState extends State<VocabScreen> {
+class _VocabScreenState extends State<VocabScreen>
+    with SingleTickerProviderStateMixin {
+  late TabController _tabController;
   List<VocabularyItem> _deck = [];
   bool _loading = false;
+  bool _isAnswering = false;
   String _status = 'Loading deck...';
   final DistractorGenerator _dg = DistractorGenerator();
+  final Random _random = Random();
   final _audioPlayer = AudioPlayer();
 
-  VocabQuizMode _mode = VocabQuizMode.vocabToEnglish;
-  VocabularyItem? _current;
-  List<String> _options = [];
-  List<String> _correctAnswers = [];
-  int _score = 0;
-  int _asked = 0;
-  bool _playAudio = true;
+  final _quizStates = [_QuizState(), _QuizState(), _QuizState()];
+  _QuizState get _currentQuizState => _quizStates[_tabController.index];
+  final _sessionDecks = <int, List<VocabularyItem>>{};
+  final _sessionDeckSizes = <int, int>{};
+
+  bool _playIncorrectSound = true;
   bool _playCorrectSound = true;
+  bool _playNarrator = true;
+  bool _apiKeyMissing = false;
 
   @override
   void initState() {
     super.initState();
+    _tabController = TabController(length: 3, vsync: this);
+    _tabController.addListener(() {
+      if (_tabController.index == 2 && !_tabController.indexIsChanging) {
+        _playCurrentAudio();
+      }
+      setState(() {});
+    });
     _loadSettings();
     _loadDeck();
   }
 
+  @override
+  void dispose() {
+    _tabController.dispose();
+    super.dispose();
+  }
+
   Future<void> _loadSettings() async {
     final prefs = await SharedPreferences.getInstance();
     setState(() {
-      _playAudio = prefs.getBool('playAudio') ?? true;
+      _playIncorrectSound = prefs.getBool('playIncorrectSound') ?? true;
       _playCorrectSound = prefs.getBool('playCorrectSound') ?? true;
+      _playNarrator = prefs.getBool('playNarrator') ?? true;
     });
   }
 
@@ -56,16 +88,15 @@ class _VocabScreenState extends State<VocabScreen> {
     });
 
     try {
-      final repo = Provider.of<DeckRepository>(context, listen: false);
+      final repo = Provider.of<VocabDeckRepository>(context, listen: false);
       await repo.loadApiKey();
       final apiKey = repo.apiKey;
 
       if (apiKey == null || apiKey.isEmpty) {
-        if (mounted) {
-          Navigator.of(context).pushReplacement(
-            MaterialPageRoute(builder: (_) => const SettingsScreen()),
-          );
-        }
+        setState(() {
+          _apiKeyMissing = true;
+          _loading = false;
+        });
         return;
       }
 
@@ -82,9 +113,49 @@ class _VocabScreenState extends State<VocabScreen> {
         _deck = items;
         _status = 'Loaded ${items.length} vocabulary';
         _loading = false;
+        _apiKeyMissing = false;
       });
 
-      _nextQuestion();
+      final disabledLevels = <int>{};
+      final itemsByLevel = <int, List<VocabularyItem>>{};
+      for (final item in _deck) {
+        (itemsByLevel[item.level] ??= []).add(item);
+      }
+
+      itemsByLevel.forEach((level, items) {
+        final allSrsItems = items
+            .expand((item) => item.srsItems.values)
+            .toList();
+        if (allSrsItems.isNotEmpty &&
+            allSrsItems.every((srs) => srs.disabled)) {
+          disabledLevels.add(level);
+        }
+      });
+
+      for (var i = 0; i < _tabController.length; i++) {
+        final mode = _modeForIndex(i);
+        var filteredDeck = _deck.where((item) {
+          if (disabledLevels.contains(item.level)) {
+            return false;
+          }
+          final srsItem = item.srsItems[mode.toString()];
+          return srsItem == null || !srsItem.disabled;
+        }).toList();
+
+        if (mode == QuizMode.audioToEnglish) {
+          filteredDeck = filteredDeck
+              .where((item) => item.pronunciationAudios.isNotEmpty)
+              .toList();
+        }
+
+        filteredDeck.shuffle(_random);
+        _sessionDecks[i] = filteredDeck;
+        _sessionDeckSizes[i] = filteredDeck.length;
+      }
+
+      for (var i = 0; i < _tabController.length; i++) {
+        _nextQuestion(i);
+      }
     } catch (e) {
       setState(() {
         _status = 'Error: $e';
@@ -101,104 +172,128 @@ class _VocabScreenState extends State<VocabScreen> {
         .join(' ');
   }
 
-  void _nextQuestion() {
-    if (_deck.isEmpty) return;
-
-    List<VocabularyItem> deck = _deck;
-    if (_mode == VocabQuizMode.audioToEnglish) {
-      deck = _deck.where((item) => item.pronunciationAudios.isNotEmpty).toList();
-      if (deck.isEmpty) {
-        setState(() {
-          _status = 'No vocabulary with audio found.';
-          _current = null;
-        });
-        return;
-      }
+  QuizMode _modeForIndex(int index) {
+    switch (index) {
+      case 0:
+        return QuizMode.vocabToEnglish;
+      case 1:
+        return QuizMode.englishToVocab;
+      case 2:
+        return QuizMode.audioToEnglish;
+      default:
+        return QuizMode.vocabToEnglish;
     }
-
-    deck.sort((a, b) {
-      final aSrsItem = a.srsItems[_mode.toString()] ??
-          VocabSrsItem(vocabId: a.id, quizMode: _mode);
-      final bSrsItem = b.srsItems[_mode.toString()] ??
-          VocabSrsItem(vocabId: b.id, quizMode: _mode);
-
-      final stageComparison = aSrsItem.srsStage.compareTo(bSrsItem.srsStage);
-      if (stageComparison != 0) {
-        return stageComparison;
-      }
-      return aSrsItem.lastAsked.compareTo(bSrsItem.lastAsked);
-    });
-
-    _current = deck.first;
-    if (_mode == VocabQuizMode.audioToEnglish) {
-      _playCurrentAudio();
-    }
-
-    _correctAnswers = [];
-    _options = [];
-
-    switch (_mode) {
-      case VocabQuizMode.vocabToEnglish:
-      case VocabQuizMode.audioToEnglish:
-        _correctAnswers = [_current!.meanings.first];
-        _options = [
-          _correctAnswers.first,
-          ..._dg.generateVocabMeanings(_current!, _deck, 3)
-        ].map(_toTitleCase).toList()
-          ..shuffle();
-        break;
-
-      case VocabQuizMode.englishToVocab:
-        _correctAnswers = [_current!.characters];
-        _options = [
-          _correctAnswers.first,
-          ..._dg.generateVocab(_current!, _deck, 3)
-        ]..shuffle();
-        break;
-    }
-
-    setState(() {});
   }
 
-  Future<void> _playCurrentAudio() async {
-    if (_current == null || _current!.pronunciationAudios.isEmpty) return;
+  void _nextQuestion([int? index]) {
+    final tabIndex = index ?? _tabController.index;
+    final quizState = _quizStates[tabIndex];
+    final sessionDeck = _sessionDecks[tabIndex];
+    final mode = _modeForIndex(tabIndex);
 
-    final maleAudios = _current!.pronunciationAudios.where((a) => a.gender == 'male');
-    final audioUrl = (maleAudios.isNotEmpty ? maleAudios.first.url : _current!.pronunciationAudios.first.url);
+    if (sessionDeck == null || sessionDeck.isEmpty) {
+      setState(() {
+        quizState.current = null;
+        _status = 'Quiz complete!';
+      });
+      return;
+    }
+
+    quizState.current = sessionDeck.removeAt(0);
+    quizState.key = UniqueKey();
+    quizState.correctAnswers = [];
+    quizState.options = [];
+    quizState.selectedOption = null;
+    quizState.showResult = false;
+
+    switch (mode) {
+      case QuizMode.vocabToEnglish:
+      case QuizMode.audioToEnglish:
+        quizState.correctAnswers = [quizState.current!.meanings.first];
+        quizState.options = [
+          quizState.correctAnswers.first,
+          ..._dg.generateVocabMeanings(quizState.current!, _deck, 3),
+        ].map(_toTitleCase).toList()..shuffle();
+        break;
+
+      case QuizMode.englishToVocab:
+        quizState.correctAnswers = [quizState.current!.characters];
+        quizState.options = [
+          quizState.correctAnswers.first,
+          ..._dg.generateVocab(quizState.current!, _deck, 3),
+        ]..shuffle();
+        break;
+      default:
+        break;
+    }
+
+    setState(() {
+      _isAnswering = false;
+    });
+
+    if (mode == QuizMode.audioToEnglish) {
+      _playCurrentAudio(playOnLoad: true);
+    }
+  }
+
+  Future<void> _playCurrentAudio({bool playOnLoad = false}) async {
+    final current = _currentQuizState.current;
+    if (current == null || current.pronunciationAudios.isEmpty) return;
+
+    if (playOnLoad && !_playNarrator) return;
+
+    final maleAudios = current.pronunciationAudios.where(
+      (a) => a.gender == 'male',
+    );
+    final audioUrl = (maleAudios.isNotEmpty
+        ? maleAudios.first.url
+        : current.pronunciationAudios.first.url);
 
     try {
       await _audioPlayer.play(UrlSource(audioUrl));
-    } catch (e) {
-      // Ignore player errors
-    }
+    } finally {}
   }
 
   void _answer(String option) async {
-    final isCorrect = _correctAnswers
+    final quizState = _currentQuizState;
+    final mode = _modeForIndex(_tabController.index);
+    final isCorrect = quizState.correctAnswers
         .map((a) => a.toLowerCase().trim())
         .contains(option.toLowerCase().trim());
 
-    final repo = Provider.of<DeckRepository>(context, listen: false);
-    final current = _current!;
+    final repo = Provider.of<VocabDeckRepository>(context, listen: false);
+    final current = quizState.current!;
+    final tabIndex = _tabController.index;
+    final sessionDeck = _sessionDecks[tabIndex]!;
 
-    final srsKey = _mode.toString();
+    final srsKey = mode.toString();
 
     var srsItemNullable = current.srsItems[srsKey];
     final isNew = srsItemNullable == null;
     final srsItem =
-        srsItemNullable ?? VocabSrsItem(vocabId: current.id, quizMode: _mode);
+        srsItemNullable ?? SrsItem(subjectId: current.id, quizMode: mode);
 
-    setState(() {
-      _asked += 1;
-      if (isCorrect) {
-        _score += 1;
-        srsItem.srsStage += 1;
-      } else {
-        srsItem.srsStage = max(0, srsItem.srsStage - 1);
+    quizState.selectedOption = option;
+    quizState.showResult = true;
+    setState(() {});
+
+    if (isCorrect) {
+      quizState.asked += 1;
+      if (!quizState.wrongItems.contains(current.id)) {
+        quizState.score += 1;
       }
-      srsItem.lastAsked = DateTime.now();
-      current.srsItems[srsKey] = srsItem;
-    });
+      srsItem.srsStage += 1;
+    } else {
+      srsItem.srsStage = max(0, srsItem.srsStage - 1);
+      sessionDeck.add(current);
+      sessionDeck.shuffle(_random);
+      quizState.wrongItems.add(current.id);
+      if (_playIncorrectSound) {
+        await _audioPlayer.play(AssetSource('sfx/incorrect.wav'));
+      }
+    }
+    srsItem.lastAsked = DateTime.now();
+    current.srsItems[srsKey] = srsItem;
 
     if (isNew) {
       await repo.insertVocabSrsItem(srsItem);
@@ -206,32 +301,33 @@ class _VocabScreenState extends State<VocabScreen> {
       await repo.updateVocabSrsItem(srsItem);
     }
 
-    final correctDisplay = (_mode == VocabQuizMode.vocabToEnglish)
-        ? _toTitleCase(_correctAnswers.first)
-        : _correctAnswers.first;
+    final correctDisplay = (mode == QuizMode.vocabToEnglish)
+        ? _toTitleCase(quizState.correctAnswers.first)
+        : quizState.correctAnswers.first;
 
+    if (!mounted) return;
     final snack = SnackBar(
       content: Text(
         isCorrect ? 'Correct!' : 'Wrong — correct: $correctDisplay',
         style: TextStyle(
-          color: isCorrect ? Colors.greenAccent : Colors.redAccent,
+          color: isCorrect
+              ? Theme.of(context).colorScheme.tertiary
+              : Theme.of(context).colorScheme.error,
           fontWeight: FontWeight.bold,
         ),
       ),
-      backgroundColor: const Color(0xFF222222),
+      backgroundColor: Theme.of(context).colorScheme.surfaceContainerHighest,
       duration: const Duration(milliseconds: 900),
     );
-    if (mounted) {
-      ScaffoldMessenger.of(context).showSnackBar(snack);
-    }
+    ScaffoldMessenger.of(context).showSnackBar(snack);
 
     if (isCorrect) {
-      if (_playCorrectSound) {
-        await _audioPlayer.play(AssetSource('sfx/confirm.mp3'));
-      }
-      if (_playAudio && _mode != VocabQuizMode.audioToEnglish) {
-        final maleAudios =
-            current.pronunciationAudios.where((a) => a.gender == 'male');
+      if (_playCorrectSound && !_playNarrator) {
+        await _audioPlayer.play(AssetSource('sfx/correct.wav'));
+      } else if (_playNarrator) {
+        final maleAudios = current.pronunciationAudios.where(
+          (a) => a.gender == 'male',
+        );
         if (maleAudios.isNotEmpty) {
           final completer = Completer<void>();
           final sub = _audioPlayer.onPlayerComplete.listen((event) {
@@ -241,152 +337,212 @@ class _VocabScreenState extends State<VocabScreen> {
           try {
             await _audioPlayer.play(UrlSource(maleAudios.first.url));
             await completer.future.timeout(const Duration(seconds: 5));
-          } catch (e) {
-            // Ignore player errors
           } finally {
             await sub.cancel();
           }
         }
       }
-    } else {
-      await Future.delayed(const Duration(milliseconds: 900));
     }
 
-    _nextQuestion();
+    setState(() {
+      _isAnswering = true;
+    });
+
+    Future.delayed(const Duration(milliseconds: 900), () {
+      if (mounted) {
+        _nextQuestion();
+      }
+    });
   }
 
   @override
   Widget build(BuildContext context) {
+    if (_apiKeyMissing) {
+      return Scaffold(
+        appBar: AppBar(title: const Text('Vocabulary Quiz')),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Text(
+                'WaniKani API key is not set.',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                ),
+              ),
+              const SizedBox(height: 16),
+              ElevatedButton(
+                onPressed: () async {
+                  await Navigator.of(context).push(
+                    MaterialPageRoute(builder: (_) => const SettingsScreen()),
+                  );
+                  if (!mounted) return;
+                  _loadDeck();
+                },
+                child: const Text('Go to Settings'),
+              ),
+            ],
+          ),
+        ),
+      );
+    }
+
+    if (_loading) {
+      return Scaffold(
+        appBar: AppBar(
+          title: const Text('Vocabulary Quiz'),
+          bottom: TabBar(
+            controller: _tabController,
+            tabs: const [
+              Tab(text: 'Vocab→English'),
+              Tab(text: 'English→Vocab'),
+              Tab(text: 'Listening'),
+            ],
+          ),
+        ),
+        body: const Center(child: CircularProgressIndicator()),
+      );
+    }
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Vocabulary Quiz'),
+        bottom: TabBar(
+          controller: _tabController,
+          tabs: const [
+            Tab(text: 'Vocab→English'),
+            Tab(text: 'English→Vocab'),
+            Tab(text: 'Listening'),
+          ],
+        ),
+      ),
+      body: TabBarView(
+        controller: _tabController,
+        children: [_buildQuizPage(0), _buildQuizPage(1), _buildQuizPage(2)],
+      ),
+    );
+  }
+
+  Widget _buildQuizPage(int index) {
+    final quizState = _quizStates[index];
+    final mode = _modeForIndex(index);
+
+    if (quizState.current == null) {
+      return Center(
+        child: Text(
+          _status,
+          style: TextStyle(
+            fontSize: 24,
+            color: Theme.of(context).colorScheme.onSurface,
+          ),
+        ),
+      );
+    }
+
     Widget promptWidget;
 
-    if (_current == null) {
+    if (quizState.current == null) {
       promptWidget = const SizedBox.shrink();
-    } else if (_mode == VocabQuizMode.audioToEnglish) {
+    } else if (mode == QuizMode.audioToEnglish) {
       promptWidget = IconButton(
-        icon: const Icon(Icons.volume_up, color: Colors.white, size: 64),
+        icon: Icon(
+          Icons.volume_up,
+          color: Theme.of(context).colorScheme.onSurface,
+          size: 64,
+        ),
         onPressed: _playCurrentAudio,
       );
     } else {
       String promptText = '';
-      switch (_mode) {
-        case VocabQuizMode.vocabToEnglish:
-          promptText = _current?.characters ?? '';
+      switch (mode) {
+        case QuizMode.vocabToEnglish:
+          promptText = quizState.current!.characters;
           break;
-        case VocabQuizMode.englishToVocab:
-          promptText = _current != null ? _toTitleCase(_current!.meanings.first) : '';
+        case QuizMode.englishToVocab:
+          promptText = _toTitleCase(quizState.current!.meanings.first);
           break;
-        case VocabQuizMode.audioToEnglish:
-          // Handled above
+        case QuizMode.audioToEnglish:
+          break;
+        default:
           break;
       }
-      promptWidget = Text(promptText, style: const TextStyle(fontSize: 48, color: Colors.white));
+      promptWidget = Text(
+        promptText,
+        style: TextStyle(
+          fontSize: 48,
+          color: Theme.of(context).colorScheme.onSurface,
+        ),
+      );
     }
 
-    return Scaffold(
-      backgroundColor: const Color(0xFF121212),
-      appBar: AppBar(
-        title: const Text('WaniKani Vocabulary SRS'),
-        backgroundColor: const Color(0xFF1F1F1F),
-        foregroundColor: Colors.white,
-        elevation: 2,
-        actions: [
-          IconButton(
-            icon: const Icon(Icons.settings),
-            onPressed: () async {
-              await Navigator.of(context).push(
-                MaterialPageRoute(builder: (_) => const SettingsScreen()),
-              );
-              _loadSettings();
-            },
-          )
+    return Padding(
+      key: quizState.key,
+      padding: const EdgeInsets.all(16.0),
+      child: Column(
+        children: [
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                '${quizState.asked} / ${_sessionDeckSizes[index] ?? 0}',
+                style: TextStyle(
+                  color: Theme.of(context).colorScheme.onSurface,
+                  fontSize: 18,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+              const SizedBox(height: 4),
+              LinearProgressIndicator(
+                value: (_sessionDeckSizes[index] ?? 0) > 0
+                    ? quizState.asked / (_sessionDeckSizes[index] ?? 1)
+                    : 0,
+                backgroundColor: Theme.of(
+                  context,
+                ).colorScheme.surfaceContainerHighest,
+                valueColor: AlwaysStoppedAnimation<Color>(
+                  Theme.of(context).colorScheme.primary,
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 18),
+          Expanded(
+            flex: 3,
+            child: Center(
+              child: ConstrainedBox(
+                constraints: const BoxConstraints(
+                  minWidth: 0,
+                  maxWidth: 500,
+                  minHeight: 150,
+                ),
+                child: KanjiCard(characterWidget: promptWidget, subtitle: ''),
+              ),
+            ),
+          ),
+          const SizedBox(height: 12),
+          SafeArea(
+            top: false,
+            child: Column(
+              children: [
+                OptionsGrid(
+                  options: quizState.options,
+                  onSelected: _isAnswering ? (option) {} : _answer,
+                  showResult: quizState.showResult,
+                  selectedOption: quizState.selectedOption,
+                  correctAnswers: quizState.correctAnswers,
+                ),
+                const SizedBox(height: 8),
+                Text(
+                  'Score: ${quizState.score} / ${quizState.asked}',
+                  style: TextStyle(
+                    color: Theme.of(context).colorScheme.onSurface,
+                  ),
+                ),
+              ],
+            ),
+          ),
         ],
       ),
-      body: Padding(
-        padding: const EdgeInsets.all(16.0),
-        child: Column(
-          children: [
-            Row(
-              children: [
-                Expanded(
-                  child: Text(
-                    _status,
-                    style: const TextStyle(color: Colors.white),
-                  ),
-                ),
-                if (_loading)
-                  const CircularProgressIndicator(color: Colors.blueAccent),
-              ],
-            ),
-            const SizedBox(height: 12),
-            Wrap(
-              spacing: 6,
-              runSpacing: 4,
-              alignment: WrapAlignment.center,
-              children: [
-                _buildChoiceChip('Vocab→English', VocabQuizMode.vocabToEnglish),
-                _buildChoiceChip('English→Vocab', VocabQuizMode.englishToVocab),
-                _buildChoiceChip('Listening', VocabQuizMode.audioToEnglish),
-              ],
-            ),
-            const SizedBox(height: 18),
-            Expanded(
-              flex: 3,
-              child: Center(
-                child: ConstrainedBox(
-                  constraints: const BoxConstraints(
-                    minWidth: 0,
-                    maxWidth: 500,
-                    minHeight: 150,
-                  ),
-                  child: KanjiCard(
-                    characterWidget: promptWidget,
-                    subtitle: '',
-                    backgroundColor: const Color(0xFF1E1E1E),
-                    textColor: Colors.white,
-                  ),
-                ),
-              ),
-            ),
-            const SizedBox(height: 12),
-            SafeArea(
-              top: false,
-              child: Column(
-                children: [
-                  OptionsGrid(
-                    options: _options,
-                    onSelected: _answer,
-                    buttonColor: const Color(0xFF1E1E1E),
-                    textColor: Colors.white,
-                  ),
-                  const SizedBox(height: 8),
-                  Text(
-                    'Score: $_score / $_asked',
-                    style: const TextStyle(color: Colors.white),
-                  ),
-                ],
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-
-  }
-
-  ChoiceChip _buildChoiceChip(String label, VocabQuizMode mode) {
-    final selected = _mode == mode;
-    return ChoiceChip(
-      label: Text(
-        label,
-        style: TextStyle(color: selected ? Colors.white : Colors.grey[400]),
-      ),
-      selected: selected,
-      onSelected: (v) {
-        setState(() => _mode = mode);
-        _nextQuestion();
-      },
-      selectedColor: Colors.blueAccent,
-      backgroundColor: const Color(0xFF1E1E1E),
     );
   }
 }

lib/src/services/custom_deck_repository.dart

@@ -0,0 +1,52 @@
+import 'dart:convert';
+import 'package:shared_preferences/shared_preferences.dart';
+import '../models/custom_kanji_item.dart';
+
+class CustomDeckRepository {
+  static const _key = 'custom_deck';
+
+  Future<List<CustomKanjiItem>> getCustomDeck() async {
+    final prefs = await SharedPreferences.getInstance();
+    final jsonString = prefs.getString(_key);
+    if (jsonString != null) {
+      final List<dynamic> jsonList = json.decode(jsonString);
+      return jsonList.map((json) => CustomKanjiItem.fromJson(json)).toList();
+    }
+    return [];
+  }
+
+  Future<void> addCard(CustomKanjiItem item) async {
+    final deck = await getCustomDeck();
+    deck.add(item);
+    await saveDeck(deck);
+  }
+
+  Future<void> updateCard(CustomKanjiItem item) async {
+    await updateCards([item]);
+  }
+
+  Future<void> updateCards(List<CustomKanjiItem> itemsToUpdate) async {
+    final deck = await getCustomDeck();
+    for (var item in itemsToUpdate) {
+      final index = deck.indexWhere(
+        (element) => element.characters == item.characters,
+      );
+      if (index != -1) {
+        deck[index] = item;
+      }
+    }
+    await saveDeck(deck);
+  }
+
+  Future<void> deleteCard(CustomKanjiItem item) async {
+    final deck = await getCustomDeck();
+    deck.removeWhere((element) => element.characters == item.characters);
+    await saveDeck(deck);
+  }
+
+  Future<void> saveDeck(List<CustomKanjiItem> deck) async {
+    final prefs = await SharedPreferences.getInstance();
+    final jsonList = deck.map((item) => item.toJson()).toList();
+    await prefs.setString(_key, json.encode(jsonList));
+  }
+}

lib/src/services/database_constants.dart

@@ -0,0 +1,27 @@
+class DbConstants {
+  static const String settingsTable = 'settings';
+  static const String kanjiTable = 'kanji';
+  static const String srsItemsTable = 'srs_items';
+  static const String vocabularyTable = 'vocabulary';
+  static const String srsVocabItemsTable = 'srs_vocab_items';
+
+  static const String keyColumn = 'key';
+  static const String valueColumn = 'value';
+
+  static const String idColumn = 'id';
+  static const String levelColumn = 'level';
+  static const String charactersColumn = 'characters';
+  static const String meaningsColumn = 'meanings';
+  static const String onyomiColumn = 'onyomi';
+  static const String kunyomiColumn = 'kunyomi';
+  static const String readingsColumn = 'readings';
+  static const String pronunciationAudiosColumn = 'pronunciation_audios';
+
+  static const String kanjiIdColumn = 'kanjiId';
+  static const String vocabIdColumn = 'vocabId';
+  static const String quizModeColumn = 'quizMode';
+  static const String readingTypeColumn = 'readingType';
+  static const String srsStageColumn = 'srsStage';
+  static const String lastAskedColumn = 'lastAsked';
+  static const String disabledColumn = 'disabled';
+}

lib/src/services/database_helper.dart

@@ -0,0 +1,65 @@
+import 'package:path/path.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:sqflite/sqflite.dart';
+import 'database_constants.dart';
+
+class DatabaseHelper {
+  static final DatabaseHelper _instance = DatabaseHelper._internal();
+  static Database? _db;
+
+  factory DatabaseHelper() {
+    return _instance;
+  }
+
+  DatabaseHelper._internal();
+
+  Future<Database> get db async {
+    if (_db != null) return _db!;
+    _db = await _openDb();
+    return _db!;
+  }
+
+  Future<void> close() async {
+    if (_db != null) {
+      await _db!.close();
+      _db = null;
+    }
+  }
+
+  Future<Database> _openDb() async {
+    final dir = await getApplicationDocumentsDirectory();
+    final path = join(dir.path, 'wanikani_srs.db');
+
+    return openDatabase(
+      path,
+      version: 8,
+      onCreate: (db, version) async {
+        await db.execute(
+          '''CREATE TABLE ${DbConstants.kanjiTable} (${DbConstants.idColumn} INTEGER PRIMARY KEY, ${DbConstants.levelColumn} INTEGER, ${DbConstants.charactersColumn} TEXT, ${DbConstants.meaningsColumn} TEXT, ${DbConstants.onyomiColumn} TEXT, ${DbConstants.kunyomiColumn} TEXT)''',
+        );
+        await db.execute(
+          '''CREATE TABLE ${DbConstants.settingsTable} (${DbConstants.keyColumn} TEXT PRIMARY KEY, ${DbConstants.valueColumn} TEXT)''',
+        );
+        await db.execute(
+          '''CREATE TABLE ${DbConstants.srsItemsTable} (${DbConstants.kanjiIdColumn} INTEGER, ${DbConstants.quizModeColumn} TEXT, ${DbConstants.readingTypeColumn} TEXT, ${DbConstants.srsStageColumn} INTEGER, ${DbConstants.lastAskedColumn} TEXT, ${DbConstants.disabledColumn} INTEGER DEFAULT 0, PRIMARY KEY (${DbConstants.kanjiIdColumn}, ${DbConstants.quizModeColumn}, ${DbConstants.readingTypeColumn}))''',
+        );
+        await db.execute(
+          '''CREATE TABLE ${DbConstants.vocabularyTable} (${DbConstants.idColumn} INTEGER PRIMARY KEY, ${DbConstants.levelColumn} INTEGER, ${DbConstants.charactersColumn} TEXT, ${DbConstants.meaningsColumn} TEXT, ${DbConstants.readingsColumn} TEXT, ${DbConstants.pronunciationAudiosColumn} TEXT)''',
+        );
+        await db.execute(
+          '''CREATE TABLE ${DbConstants.srsVocabItemsTable} (${DbConstants.vocabIdColumn} INTEGER, ${DbConstants.quizModeColumn} TEXT, ${DbConstants.srsStageColumn} INTEGER, ${DbConstants.lastAskedColumn} TEXT, ${DbConstants.disabledColumn} INTEGER DEFAULT 0, PRIMARY KEY (${DbConstants.vocabIdColumn}, ${DbConstants.quizModeColumn}))''',
+        );
+      },
+      onUpgrade: (db, oldVersion, newVersion) async {
+        if (oldVersion < 8) {
+          await db.execute(
+            'ALTER TABLE ${DbConstants.srsItemsTable} ADD COLUMN ${DbConstants.disabledColumn} INTEGER DEFAULT 0',
+          );
+          await db.execute(
+            'ALTER TABLE ${DbConstants.srsVocabItemsTable} ADD COLUMN ${DbConstants.disabledColumn} INTEGER DEFAULT 0',
+          );
+        }
+      },
+    );
+  }
+}

lib/src/services/deck_repository.dart

@@ -1,13 +1,14 @@
 import 'dart:async';
-import 'dart:convert';
-import 'package:path/path.dart';
-import 'package:path_provider/path_provider.dart';
 import 'package:sqflite/sqflite.dart';
 import '../models/kanji_item.dart';
+import '../models/srs_item.dart';
 import '../api/wk_client.dart';
+import 'database_constants.dart';
+import 'database_helper.dart';
+
+import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 class DeckRepository {
-  Database? _db;
   String? _apiKey;
 
   Future<void> setApiKey(String apiKey) async {
@@ -17,132 +18,98 @@ class DeckRepository {
 
   String? get apiKey => _apiKey;
 
-  Future<Database> _openDb() async {
-    if (_db != null) return _db!;
-    final dir = await getApplicationDocumentsDirectory();
-    final path = join(dir.path, 'wanikani_srs.db');
-
-    _db = await openDatabase(
-      path,
-      version: 7,
-      onCreate: (db, version) async {
-        await db.execute(
-            '''CREATE TABLE kanji (id INTEGER PRIMARY KEY, level INTEGER, characters TEXT, meanings TEXT, onyomi TEXT, kunyomi TEXT)''');
-        await db.execute(
-            '''CREATE TABLE settings (key TEXT PRIMARY KEY, value TEXT)''');
-        await db.execute(
-            '''CREATE TABLE srs_items (kanjiId INTEGER, quizMode TEXT, readingType TEXT, srsStage INTEGER, lastAsked TEXT, PRIMARY KEY (kanjiId, quizMode, readingType))''');
-        await db.execute(
-            '''CREATE TABLE vocabulary (id INTEGER PRIMARY KEY, level INTEGER, characters TEXT, meanings TEXT, readings TEXT, pronunciation_audios TEXT)''');
-        await db.execute(
-            '''CREATE TABLE srs_vocab_items (vocabId INTEGER, quizMode TEXT, srsStage INTEGER, lastAsked TEXT, PRIMARY KEY (vocabId, quizMode))''');
-      },
-      onUpgrade: (db, oldVersion, newVersion) async {
-        if (oldVersion < 2) {
-          await db.execute(
-              '''CREATE TABLE IF NOT EXISTS settings (key TEXT PRIMARY KEY, value TEXT)''');
-        }
-        if (oldVersion < 3) {
-          // Migration from version 2 to 3 was flawed, so we just drop the columns if they exist
-        }
-        if (oldVersion < 4) {
-          await db.execute(
-            '''CREATE TABLE srs_items (kanjiId INTEGER, quizMode TEXT, readingType TEXT, srsStage INTEGER, lastAsked TEXT, PRIMARY KEY (kanjiId, quizMode, readingType))''');
-          // We are not migrating the old srs data, as it was not mode-specific.
-          // Old columns will be dropped.
-        }
-        if (oldVersion < 5) {
-          await db.execute(
-            '''CREATE TABLE vocabulary (id INTEGER PRIMARY KEY, characters TEXT, meanings TEXT, readings TEXT)''');
-          await db.execute(
-            '''CREATE TABLE srs_vocab_items (vocabId INTEGER, quizMode TEXT, srsStage INTEGER, lastAsked TEXT, PRIMARY KEY (vocabId, quizMode))''');
-        }
-        if (oldVersion < 6) {
-          try {
-            await db.execute('ALTER TABLE vocabulary ADD COLUMN pronunciation_audios TEXT');
-          } catch (_) {
-            // Ignore error, column might already exist
-          }
-        }
-        if (oldVersion < 7) {
-          try {
-            await db.execute('ALTER TABLE kanji ADD COLUMN level INTEGER');
-            await db.execute('ALTER TABLE vocabulary ADD COLUMN level INTEGER');
-          } catch (_) {
-            // Ignore error, column might already exist
-          }
-        }
-      },
-    );
-
-    return _db!;
-  }
-
   Future<void> saveApiKey(String apiKey) async {
-    final db = await _openDb();
-    await db.insert(
-      'settings',
-      {'key': 'apiKey', 'value': apiKey},
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
+    final db = await DatabaseHelper().db;
+    await db.insert(DbConstants.settingsTable, {
+      DbConstants.keyColumn: 'apiKey',
+      DbConstants.valueColumn: apiKey,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
   }
 
   Future<String?> loadApiKey() async {
-    final db = await _openDb();
-    final rows =
-    await db.query('settings', where: 'key = ?', whereArgs: ['apiKey']);
+    final db = await DatabaseHelper().db;
+    final rows = await db.query(
+      DbConstants.settingsTable,
+      where: '${DbConstants.keyColumn} = ?',
+      whereArgs: ['apiKey'],
+    );
+
     if (rows.isNotEmpty) {
-      _apiKey = rows.first['value'] as String;
+      _apiKey = rows.first[DbConstants.valueColumn] as String;
       return _apiKey;
     }
+
+    try {
+      final envApiKey = dotenv.env['WANIKANI_API_KEY'];
+      if (envApiKey != null && envApiKey.isNotEmpty) {
+        await saveApiKey(envApiKey);
+        _apiKey = envApiKey;
+        return _apiKey;
+      }
+    } catch (_) {}
+
     return null;
   }
 
   Future<void> saveKanji(List<KanjiItem> items) async {
-    final db = await _openDb();
+    final db = await DatabaseHelper().db;
     final batch = db.batch();
     for (final it in items) {
-      batch.insert(
-        'kanji',
-        {
-          'id': it.id,
-          'level': it.level,
-          'characters': it.characters,
-          'meanings': it.meanings.join('|'),
-          'onyomi': it.onyomi.join('|'),
-          'kunyomi': it.kunyomi.join('|'),
-        },
-        conflictAlgorithm: ConflictAlgorithm.replace,
-      );
+      batch.insert(DbConstants.kanjiTable, {
+        DbConstants.idColumn: it.id,
+        DbConstants.levelColumn: it.level,
+        DbConstants.charactersColumn: it.characters,
+        DbConstants.meaningsColumn: it.meanings.join('|'),
+        DbConstants.onyomiColumn: it.onyomi.join('|'),
+        DbConstants.kunyomiColumn: it.kunyomi.join('|'),
+      }, conflictAlgorithm: ConflictAlgorithm.replace);
     }
     await batch.commit(noResult: true);
   }
 
   Future<List<KanjiItem>> loadKanji() async {
-    final db = await _openDb();
-    final rows = await db.query('kanji');
+    final db = await DatabaseHelper().db;
+    final rows = await db.query(DbConstants.kanjiTable);
     final kanjiItems = rows
-        .map((r) => KanjiItem(
-      id: r['id'] as int,
-      level: r['level'] as int? ?? 0,
-      characters: r['characters'] as String,
-      meanings: (r['meanings'] as String)
-          .split('|')
-          .where((s) => s.isNotEmpty)
-          .toList(),
-      onyomi: (r['onyomi'] as String)
-          .split('|')
-          .where((s) => s.isNotEmpty)
-          .toList(),
-      kunyomi: (r['kunyomi'] as String)
-          .split('|')
-          .where((s) => s.isNotEmpty)
-          .toList(),
-    ))
+        .map(
+          (r) => KanjiItem(
+            id: r[DbConstants.idColumn] as int,
+            level: r[DbConstants.levelColumn] as int? ?? 0,
+            characters: r[DbConstants.charactersColumn] as String,
+            meanings: (r[DbConstants.meaningsColumn] as String)
+                .split('|')
+                .where((s) => s.isNotEmpty)
+                .toList(),
+            onyomi: (r[DbConstants.onyomiColumn] as String)
+                .split('|')
+                .where((s) => s.isNotEmpty)
+                .toList(),
+            kunyomi: (r[DbConstants.kunyomiColumn] as String)
+                .split('|')
+                .where((s) => s.isNotEmpty)
+                .toList(),
+          ),
+        )
         .toList();
 
+    final srsRows = await db.query(DbConstants.srsItemsTable);
+    final srsItemsByKanjiId = <int, List<SrsItem>>{};
+    for (final r in srsRows) {
+      final srsItem = SrsItem(
+        subjectId: r[DbConstants.kanjiIdColumn] as int,
+        quizMode: QuizMode.values.firstWhere(
+          (e) => e.toString() == r[DbConstants.quizModeColumn] as String,
+        ),
+        readingType: r[DbConstants.readingTypeColumn] as String?,
+        srsStage: r[DbConstants.srsStageColumn] as int,
+        lastAsked: DateTime.parse(r[DbConstants.lastAskedColumn] as String),
+        disabled: (r[DbConstants.disabledColumn] as int? ?? 0) == 1,
+      );
+      srsItemsByKanjiId.putIfAbsent(srsItem.subjectId, () => []).add(srsItem);
+    }
+
     for (final item in kanjiItems) {
-      final srsItems = await getSrsItems(item.id);
+      final srsItems = srsItemsByKanjiId[item.id] ?? [];
       for (final srsItem in srsItems) {
         final key = srsItem.quizMode.toString() + (srsItem.readingType ?? '');
         item.srsItems[key] = srsItem;
@@ -152,46 +119,68 @@ class DeckRepository {
     return kanjiItems;
   }
 
-  Future<List<SrsItem>> getSrsItems(int kanjiId) async {
-    final db = await _openDb();
-    final rows = await db.query('srs_items', where: 'kanjiId = ?', whereArgs: [kanjiId]);
-    return rows.map((r) {
-      return SrsItem(
-        kanjiId: r['kanjiId'] as int,
-        quizMode: QuizMode.values.firstWhere((e) => e.toString() == r['quizMode'] as String),
-        readingType: r['readingType'] as String?,
-        srsStage: r['srsStage'] as int,
-        lastAsked: DateTime.parse(r['lastAsked'] as String),
+  Future<void> updateSrsItems(List<SrsItem> items) async {
+    final db = await DatabaseHelper().db;
+    final batch = db.batch();
+    for (final item in items) {
+      var where =
+          '${DbConstants.kanjiIdColumn} = ? AND ${DbConstants.quizModeColumn} = ?';
+      final whereArgs = [item.subjectId, item.quizMode.toString()];
+      if (item.readingType != null) {
+        where += ' AND ${DbConstants.readingTypeColumn} = ?';
+        whereArgs.add(item.readingType!);
+      } else {
+        where += ' AND ${DbConstants.readingTypeColumn} IS NULL';
+      }
+
+      batch.update(
+        DbConstants.srsItemsTable,
+        {
+          DbConstants.srsStageColumn: item.srsStage,
+          DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+          DbConstants.disabledColumn: item.disabled ? 1 : 0,
+        },
+        where: where,
+        whereArgs: whereArgs,
       );
-    }).toList();
+    }
+    await batch.commit(noResult: true);
   }
 
   Future<void> updateSrsItem(SrsItem item) async {
-    final db = await _openDb();
+    final db = await DatabaseHelper().db;
+    var where =
+        '${DbConstants.kanjiIdColumn} = ? AND ${DbConstants.quizModeColumn} = ?';
+    final whereArgs = [item.subjectId, item.quizMode.toString()];
+    if (item.readingType != null) {
+      where += ' AND ${DbConstants.readingTypeColumn} = ?';
+      whereArgs.add(item.readingType!);
+    } else {
+      where += ' AND ${DbConstants.readingTypeColumn} IS NULL';
+    }
+
     await db.update(
-      'srs_items',
+      DbConstants.srsItemsTable,
       {
-        'srsStage': item.srsStage,
-        'lastAsked': item.lastAsked.toIso8601String(),
+        DbConstants.srsStageColumn: item.srsStage,
+        DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+        DbConstants.disabledColumn: item.disabled ? 1 : 0,
       },
-      where: 'kanjiId = ? AND quizMode = ? AND readingType = ?',
-      whereArgs: [item.kanjiId, item.quizMode.toString(), item.readingType],
+      where: where,
+      whereArgs: whereArgs,
     );
   }
 
   Future<void> insertSrsItem(SrsItem item) async {
-    final db = await _openDb();
-    await db.insert(
-      'srs_items',
-      {
-        'kanjiId': item.kanjiId,
-        'quizMode': item.quizMode.toString(),
-        'readingType': item.readingType,
-        'srsStage': item.srsStage,
-        'lastAsked': item.lastAsked.toIso8601String(),
-      },
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
+    final db = await DatabaseHelper().db;
+    await db.insert(DbConstants.srsItemsTable, {
+      DbConstants.kanjiIdColumn: item.subjectId,
+      DbConstants.quizModeColumn: item.quizMode.toString(),
+      DbConstants.readingTypeColumn: item.readingType,
+      DbConstants.srsStageColumn: item.srsStage,
+      DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+      DbConstants.disabledColumn: item.disabled ? 1 : 0,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
   }
 
   Future<List<KanjiItem>> fetchAndCacheFromWk([String? apiKey]) async {
@@ -199,8 +188,9 @@ class DeckRepository {
     if (key == null) throw Exception('API key not set');
 
     final client = WkClient(key);
-    final assignments =
-    await client.fetchAllAssignments(subjectTypes: ['kanji']);
+    final assignments = await client.fetchAllAssignments(
+      subjectTypes: ['kanji'],
+    );
 
     final unlocked = <int>{};
     for (final a in assignments) {
@@ -219,10 +209,12 @@ class DeckRepository {
 
     final subjects = await client.fetchSubjectsByIds(unlocked.toList());
     final items = subjects
-        .where((s) =>
-    s['object'] == 'kanji' ||
-        (s['data'] != null &&
-            (s['data'] as Map)['object_type'] == 'kanji'))
+        .where(
+          (s) =>
+              s['object'] == 'kanji' ||
+              (s['data'] != null &&
+                  (s['data'] as Map)['object_type'] == 'kanji'),
+        )
         .map((s) => KanjiItem.fromSubject(s))
         .where((k) => k.characters.isNotEmpty && k.meanings.isNotEmpty)
         .toList();
@@ -230,152 +222,4 @@ class DeckRepository {
     await saveKanji(items);
     return items;
   }
-
-  Future<List<VocabSrsItem>> getVocabSrsItems(int vocabId) async {
-    final db = await _openDb();
-    final rows = await db.query('srs_vocab_items', where: 'vocabId = ?', whereArgs: [vocabId]);
-    return rows.map((r) {
-      return VocabSrsItem(
-        vocabId: r['vocabId'] as int,
-        quizMode: VocabQuizMode.values.firstWhere((e) => e.toString() == r['quizMode'] as String),
-        srsStage: r['srsStage'] as int,
-        lastAsked: DateTime.parse(r['lastAsked'] as String),
-      );
-    }).toList();
-  }
-
-  Future<void> updateVocabSrsItem(VocabSrsItem item) async {
-    final db = await _openDb();
-    await db.update(
-      'srs_vocab_items',
-      {
-        'srsStage': item.srsStage,
-        'lastAsked': item.lastAsked.toIso8601String(),
-      },
-      where: 'vocabId = ? AND quizMode = ?',
-      whereArgs: [item.vocabId, item.quizMode.toString()],
-    );
-  }
-
-  Future<void> insertVocabSrsItem(VocabSrsItem item) async {
-    final db = await _openDb();
-    await db.insert(
-      'srs_vocab_items',
-      {
-        'vocabId': item.vocabId,
-        'quizMode': item.quizMode.toString(),
-        'srsStage': item.srsStage,
-        'lastAsked': item.lastAsked.toIso8601String(),
-      },
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
-  }
-
-  Future<void> saveVocabulary(List<VocabularyItem> items) async {
-    final db = await _openDb();
-    final batch = db.batch();
-    for (final it in items) {
-      final audios = it.pronunciationAudios
-          .map((a) => {'url': a.url, 'gender': a.gender})
-          .toList();
-      batch.insert(
-        'vocabulary',
-        {
-          'id': it.id,
-          'level': it.level,
-          'characters': it.characters,
-          'meanings': it.meanings.join('|'),
-          'readings': it.readings.join('|'),
-          'pronunciation_audios': jsonEncode(audios),
-        },
-        conflictAlgorithm: ConflictAlgorithm.replace,
-      );
-    }
-    await batch.commit(noResult: true);
-  }
-
-  Future<List<VocabularyItem>> loadVocabulary() async {
-    final db = await _openDb();
-    final rows = await db.query('vocabulary');
-    final vocabItems = rows
-        .map((r) {
-          final audiosRaw = r['pronunciation_audios'] as String?;
-          final List<PronunciationAudio> audios = [];
-          if (audiosRaw != null && audiosRaw.isNotEmpty) {
-            try {
-              final decoded = jsonDecode(audiosRaw) as List;
-              for (final audioData in decoded) {
-                audios.add(PronunciationAudio(
-                  url: audioData['url'] as String,
-                  gender: audioData['gender'] as String,
-                ));
-              }
-            } catch (e) {
-              // Error decoding, so we'll just have no audio for this item
-            }
-          }
-          return VocabularyItem(
-            id: r['id'] as int,
-            level: r['level'] as int? ?? 0,
-            characters: r['characters'] as String,
-            meanings: (r['meanings'] as String)
-                .split('|')
-                .where((s) => s.isNotEmpty)
-                .toList(),
-            readings: (r['readings'] as String)
-                .split('|')
-                .where((s) => s.isNotEmpty)
-                .toList(),
-            pronunciationAudios: audios,
-          );
-        })
-        .toList();
-
-    for (final item in vocabItems) {
-      final srsItems = await getVocabSrsItems(item.id);
-      for (final srsItem in srsItems) {
-        final key = srsItem.quizMode.toString();
-        item.srsItems[key] = srsItem;
-      }
-    }
-
-    return vocabItems;
-  }
-
-  Future<List<VocabularyItem>> fetchAndCacheVocabularyFromWk([String? apiKey]) async {
-    final key = apiKey ?? _apiKey;
-    if (key == null) throw Exception('API key not set');
-
-    final client = WkClient(key);
-    final assignments =
-    await client.fetchAllAssignments(subjectTypes: ['vocabulary']);
-
-    final unlocked = <int>{};
-    for (final a in assignments) {
-      final data = a['data'] as Map<String, dynamic>;
-      final sidRaw = data['subject_id'];
-      if (sidRaw == null) continue;
-      final sid = sidRaw is int ? sidRaw : int.tryParse(sidRaw.toString());
-      if (sid == null) continue;
-      final started = data['started_at'];
-      final srs = data['srs_stage'];
-      final isUnlocked = (started != null) || (srs != null && (srs as int) > 0);
-      if (isUnlocked) unlocked.add(sid);
-    }
-
-    if (unlocked.isEmpty) return [];
-
-    final subjects = await client.fetchSubjectsByIds(unlocked.toList());
-    final items = subjects
-        .where((s) =>
-    s['object'] == 'vocabulary' ||
-        (s['data'] != null &&
-            (s['data'] as Map)['object_type'] == 'vocabulary'))
-        .map((s) => VocabularyItem.fromSubject(s))
-        .where((k) => k.characters.isNotEmpty && k.meanings.isNotEmpty)
-        .toList();
-
-    await saveVocabulary(items);
-    return items;
-  }
-}
+}

lib/src/services/distractor_generator.dart

@@ -1,17 +1,30 @@
 import '../models/kanji_item.dart';
+import '../models/vocabulary_item.dart';
 import 'dart:math';
 
 class DistractorGenerator {
   final Random _rnd = Random();
 
-  List<String> generateMeanings(KanjiItem correct, List<KanjiItem> pool, int needed) {
+  List<String> generateMeanings(
+    KanjiItem correct,
+    List<KanjiItem> pool,
+    int needed,
+  ) {
     final correctMeaning = correct.meanings.first;
-    final tokens = correctMeaning.split(RegExp(r'\s+')).map((s) => s.trim()).where((s) => s.isNotEmpty).toSet();
+    final tokens = correctMeaning
+        .split(RegExp(r'\s+'))
+        .map((s) => s.trim())
+        .where((s) => s.isNotEmpty)
+        .toSet();
     final candidates = <String>[];
     for (final k in pool) {
       if (k.id == correct.id) continue;
       for (final m in k.meanings) {
-        final mTokens = m.split(RegExp(r'\s+')).map((s) => s.trim()).where((s) => s.isNotEmpty).toSet();
+        final mTokens = m
+            .split(RegExp(r'\s+'))
+            .map((s) => s.trim())
+            .where((s) => s.isNotEmpty)
+            .toSet();
         if (mTokens.intersection(tokens).isNotEmpty) {
           candidates.add(m);
         }
@@ -38,8 +51,15 @@ class DistractorGenerator {
     return out;
   }
 
-  List<String> generateKanji(KanjiItem correct, List<KanjiItem> pool, int needed) {
-    final others = pool.map((k) => k.characters).where((c) => c != correct.characters).toList();
+  List<String> generateKanji(
+    KanjiItem correct,
+    List<KanjiItem> pool,
+    int needed,
+  ) {
+    final others = pool
+        .map((k) => k.characters)
+        .where((c) => c != correct.characters)
+        .toList();
     others.shuffle(_rnd);
     final out = <String>[];
     for (final o in others) {
@@ -52,7 +72,11 @@ class DistractorGenerator {
     return out;
   }
 
-  List<String> generateReadings(String correct, List<KanjiItem> pool, int needed) {
+  List<String> generateReadings(
+    String correct,
+    List<KanjiItem> pool,
+    int needed,
+  ) {
     final poolReadings = <String>[];
     for (final k in pool) {
       poolReadings.addAll(k.onyomi);
@@ -71,14 +95,26 @@ class DistractorGenerator {
     return out;
   }
 
-  List<String> generateVocabMeanings(VocabularyItem correct, List<VocabularyItem> pool, int needed) {
+  List<String> generateVocabMeanings(
+    VocabularyItem correct,
+    List<VocabularyItem> pool,
+    int needed,
+  ) {
     final correctMeaning = correct.meanings.first;
-    final tokens = correctMeaning.split(RegExp(r'\s+')).map((s) => s.trim()).where((s) => s.isNotEmpty).toSet();
+    final tokens = correctMeaning
+        .split(RegExp(r'\s+'))
+        .map((s) => s.trim())
+        .where((s) => s.isNotEmpty)
+        .toSet();
     final candidates = <String>[];
     for (final k in pool) {
       if (k.id == correct.id) continue;
       for (final m in k.meanings) {
-        final mTokens = m.split(RegExp(r'\s+')).map((s) => s.trim()).where((s) => s.isNotEmpty).toSet();
+        final mTokens = m
+            .split(RegExp(r'\s+'))
+            .map((s) => s.trim())
+            .where((s) => s.isNotEmpty)
+            .toSet();
         if (mTokens.intersection(tokens).isNotEmpty) {
           candidates.add(m);
         }
@@ -105,8 +141,15 @@ class DistractorGenerator {
     return out;
   }
 
-  List<String> generateVocab(VocabularyItem correct, List<VocabularyItem> pool, int needed) {
-    final others = pool.map((k) => k.characters).where((c) => c != correct.characters).toList();
+  List<String> generateVocab(
+    VocabularyItem correct,
+    List<VocabularyItem> pool,
+    int needed,
+  ) {
+    final others = pool
+        .map((k) => k.characters)
+        .where((c) => c != correct.characters)
+        .toList();
     others.shuffle(_rnd);
     final out = <String>[];
     for (final o in others) {
@@ -120,4 +163,7 @@ class DistractorGenerator {
   }
 }
 
-String _toTitleCase(String s) => s.split(' ').map((w) => w.isEmpty ? w : (w[0].toUpperCase() + w.substring(1))).join(' ');
+String _toTitleCase(String s) => s
+    .split(' ')
+    .map((w) => w.isEmpty ? w : (w[0].toUpperCase() + w.substring(1)))
+    .join(' ');

lib/src/services/tts_service.dart

@@ -0,0 +1,56 @@
+import 'package:flutter_tts/flutter_tts.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+class TtsService {
+  FlutterTts? _flutterTts;
+  bool _isInitialized = false;
+
+  Future<void> initTts() async {
+    if (_isInitialized) return;
+
+    _flutterTts = FlutterTts();
+    if (_flutterTts != null) {
+      final isAvailable = await _flutterTts!.isLanguageAvailable("ja-JP");
+      if (isAvailable == true) {
+        await _flutterTts?.setLanguage("ja-JP");
+      } else {
+        debugPrint('Japanese (ja-JP) TTS language not available.');
+      }
+    }
+    _isInitialized = true;
+  }
+
+  Future<bool> isLanguageAvailable(String language) async {
+    if (_flutterTts == null) {
+      await initTts();
+    }
+    return await _flutterTts?.isLanguageAvailable(language) ?? false;
+  }
+
+  Future<void> speak(String text) async {
+    const int maxRetries = 3;
+    for (int i = 0; i < maxRetries; i++) {
+      try {
+        if (_flutterTts == null || !_isInitialized) {
+          await initTts();
+        }
+        await _flutterTts?.speak(text);
+        return;
+      } on PlatformException catch (_) {
+        debugPrint('TTS speak failed, retrying...');
+        await _flutterTts?.stop();
+        _flutterTts = null;
+        _isInitialized = false;
+        await Future.delayed(const Duration(milliseconds: 500));
+      }
+    }
+    debugPrint('Failed to speak after $maxRetries retries.');
+  }
+
+  void dispose() {
+    _flutterTts?.stop();
+    _flutterTts = null;
+    _isInitialized = false;
+  }
+}

lib/src/services/vocab_deck_repository.dart

@@ -0,0 +1,224 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:sqflite/sqflite.dart';
+import '../models/vocabulary_item.dart';
+import '../models/srs_item.dart';
+import '../api/wk_client.dart';
+import 'database_helper.dart';
+
+import 'package:flutter_dotenv/flutter_dotenv.dart';
+
+class VocabDeckRepository {
+  String? _apiKey;
+
+  Future<void> setApiKey(String apiKey) async {
+    _apiKey = apiKey;
+    await saveApiKey(apiKey);
+  }
+
+  String? get apiKey => _apiKey;
+
+  Future<void> saveApiKey(String apiKey) async {
+    final db = await DatabaseHelper().db;
+    await db.insert('settings', {
+      'key': 'apiKey',
+      'value': apiKey,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
+  }
+
+  Future<String?> loadApiKey() async {
+    String? envApiKey;
+    try {
+      envApiKey = dotenv.env['WANIKANI_API_KEY'];
+    } catch (e) {
+      envApiKey = null;
+    }
+
+    if (envApiKey != null && envApiKey.isNotEmpty) {
+      _apiKey = envApiKey;
+      return _apiKey;
+    }
+
+    final db = await DatabaseHelper().db;
+    final rows = await db.query(
+      'settings',
+      where: 'key = ?',
+      whereArgs: ['apiKey'],
+    );
+    if (rows.isNotEmpty) {
+      _apiKey = rows.first['value'] as String;
+      return _apiKey;
+    }
+    return null;
+  }
+
+  Future<List<SrsItem>> getVocabSrsItems(int vocabId) async {
+    final db = await DatabaseHelper().db;
+    final rows = await db.query(
+      'srs_vocab_items',
+      where: 'vocabId = ?',
+      whereArgs: [vocabId],
+    );
+    return rows.map((r) {
+      return SrsItem(
+        subjectId: r['vocabId'] as int,
+        quizMode: QuizMode.values.firstWhere(
+          (e) => e.toString() == r['quizMode'] as String,
+        ),
+        srsStage: r['srsStage'] as int,
+        lastAsked: DateTime.parse(r['lastAsked'] as String),
+        disabled: (r['disabled'] as int? ?? 0) == 1,
+      );
+    }).toList();
+  }
+
+  Future<void> updateSrsItems(List<SrsItem> items) async {
+    final db = await DatabaseHelper().db;
+    final batch = db.batch();
+    for (final item in items) {
+      batch.update(
+        'srs_vocab_items',
+        {
+          'srsStage': item.srsStage,
+          'lastAsked': item.lastAsked.toIso8601String(),
+          'disabled': item.disabled ? 1 : 0,
+        },
+        where: 'vocabId = ? AND quizMode = ?',
+        whereArgs: [item.subjectId, item.quizMode.toString()],
+      );
+    }
+    await batch.commit(noResult: true);
+  }
+
+  Future<void> updateVocabSrsItem(SrsItem item) async {
+    final db = await DatabaseHelper().db;
+    await db.update(
+      'srs_vocab_items',
+      {
+        'srsStage': item.srsStage,
+        'lastAsked': item.lastAsked.toIso8601String(),
+        'disabled': item.disabled ? 1 : 0,
+      },
+      where: 'vocabId = ? AND quizMode = ?',
+      whereArgs: [item.subjectId, item.quizMode.toString()],
+    );
+  }
+
+  Future<void> insertVocabSrsItem(SrsItem item) async {
+    final db = await DatabaseHelper().db;
+    await db.insert('srs_vocab_items', {
+      'vocabId': item.subjectId,
+      'quizMode': item.quizMode.toString(),
+      'srsStage': item.srsStage,
+      'lastAsked': item.lastAsked.toIso8601String(),
+      'disabled': item.disabled ? 1 : 0,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
+  }
+
+  Future<void> saveVocabulary(List<VocabularyItem> items) async {
+    final db = await DatabaseHelper().db;
+    final batch = db.batch();
+    for (final it in items) {
+      final audios = it.pronunciationAudios
+          .map((a) => {'url': a.url, 'gender': a.gender})
+          .toList();
+      batch.insert('vocabulary', {
+        'id': it.id,
+        'level': it.level,
+        'characters': it.characters,
+        'meanings': it.meanings.join('|'),
+        'readings': it.readings.join('|'),
+        'pronunciation_audios': jsonEncode(audios),
+      }, conflictAlgorithm: ConflictAlgorithm.replace);
+    }
+    await batch.commit(noResult: true);
+  }
+
+  Future<List<VocabularyItem>> loadVocabulary() async {
+    final db = await DatabaseHelper().db;
+    final rows = await db.query('vocabulary');
+    final vocabItems = rows.map((r) {
+      final audiosRaw = r['pronunciation_audios'] as String?;
+      final List<PronunciationAudio> audios = [];
+      if (audiosRaw != null && audiosRaw.isNotEmpty) {
+        try {
+          final decoded = jsonDecode(audiosRaw) as List;
+          for (final audioData in decoded) {
+            audios.add(
+              PronunciationAudio(
+                url: audioData['url'] as String,
+                gender: audioData['gender'] as String,
+              ),
+            );
+          }
+        } finally {}
+      }
+      return VocabularyItem(
+        id: r['id'] as int,
+        level: r['level'] as int? ?? 0,
+        characters: r['characters'] as String,
+        meanings: (r['meanings'] as String)
+            .split('|')
+            .where((s) => s.isNotEmpty)
+            .toList(),
+        readings: (r['readings'] as String)
+            .split('|')
+            .where((s) => s.isNotEmpty)
+            .toList(),
+        pronunciationAudios: audios,
+      );
+    }).toList();
+
+    for (final item in vocabItems) {
+      final srsItems = await getVocabSrsItems(item.id);
+      for (final srsItem in srsItems) {
+        final key = srsItem.quizMode.toString();
+        item.srsItems[key] = srsItem;
+      }
+    }
+
+    return vocabItems;
+  }
+
+  Future<List<VocabularyItem>> fetchAndCacheVocabularyFromWk([
+    String? apiKey,
+  ]) async {
+    final key = apiKey ?? _apiKey;
+    if (key == null) throw Exception('API key not set');
+
+    final client = WkClient(key);
+    final assignments = await client.fetchAllAssignments(
+      subjectTypes: ['vocabulary'],
+    );
+
+    final unlocked = <int>{};
+    for (final a in assignments) {
+      final data = a['data'] as Map<String, dynamic>;
+      final sidRaw = data['subject_id'];
+      if (sidRaw == null) continue;
+      final sid = sidRaw is int ? sidRaw : int.tryParse(sidRaw.toString());
+      if (sid == null) continue;
+      final started = data['started_at'];
+      final srs = data['srs_stage'];
+      final isUnlocked = (started != null) || (srs != null && (srs as int) > 0);
+      if (isUnlocked) unlocked.add(sid);
+    }
+
+    if (unlocked.isEmpty) return [];
+
+    final subjects = await client.fetchSubjectsByIds(unlocked.toList());
+    final items = subjects
+        .where(
+          (s) =>
+              s['object'] == 'vocabulary' ||
+              (s['data'] != null &&
+                  (s['data'] as Map)['object_type'] == 'vocabulary'),
+        )
+        .map((s) => VocabularyItem.fromSubject(s))
+        .where((k) => k.characters.isNotEmpty && k.meanings.isNotEmpty)
+        .toList();
+
+    await saveVocabulary(items);
+    return items;
+  }
+}

lib/src/themes.dart

@@ -0,0 +1,131 @@
+import 'package:flutter/material.dart';
+
+class SrsColors {
+  final Color level1;
+  final Color level2;
+  final Color level3;
+  final Color level4;
+  final Color level5;
+  final Color level6;
+  final Color level7;
+  final Color level8;
+  final Color level9;
+
+  const SrsColors({
+    required this.level1,
+    required this.level2,
+    required this.level3,
+    required this.level4,
+    required this.level5,
+    required this.level6,
+    required this.level7,
+    required this.level8,
+    required this.level9,
+  });
+}
+
+extension CustomTheme on ThemeData {
+  SrsColors get srsColors {
+    if (brightness == Brightness.dark) {
+      return const SrsColors(
+        level1: Color(0xFFE57373), // red
+        level2: Color(0xFFFFB74D), // orange
+        level3: Color(0xFFFFD54F), // yellow
+        level4: Color(0xFFDCE775), // lime
+        level5: Color(0xFFAED581), // light green
+        level6: Color(0xFF81C784), // green
+        level7: Color(0xFF4DB6AC), // teal
+        level8: Color(0xFF4FC3F7), // light blue
+        level9: Color(0xFF7986CB), // indigo
+      );
+    } else if (colorScheme.primary == const Color(0xFF7B6D53)) {
+      // Nier theme
+      return const SrsColors(
+        level1: Color(0xFFB71C1C), // dark red
+        level2: Color(0xFFD84315), // deep orange
+        level3: Color(0xFFF57F17), // yellow
+        level4: Color(0xFF9E9D24), // lime
+        level5: Color(0xFF558B2F), // light green
+        level6: Color(0xFF2E7D32), // green
+        level7: Color(0xFF00695C), // teal
+        level8: Color(0xFF0277BD), // light blue
+        level9: Color(0xFF283593), // indigo
+      );
+    } else {
+      // Light theme
+      return const SrsColors(
+        level1: Colors.red,
+        level2: Colors.orange,
+        level3: Colors.yellow,
+        level4: Colors.lightGreen,
+        level5: Colors.green,
+        level6: Colors.teal,
+        level7: Colors.cyan,
+        level8: Colors.blue,
+        level9: Colors.purple,
+      );
+    }
+  }
+}
+
+class Themes {
+  static final dark = ThemeData(
+    colorScheme: const ColorScheme(
+      brightness: Brightness.dark,
+      primary: Color(0xFF90CAF9),
+      onPrimary: Colors.black,
+      secondary: Color(0xFFBBDEFB),
+      onSecondary: Colors.black,
+      tertiary: Color(0xFFA5D6A7),
+      onTertiary: Colors.black,
+      error: Color(0xFFEF9A9A),
+      onError: Colors.black,
+      surface: Color(0xFF121212),
+      onSurface: Colors.white,
+      surfaceContainer: Color(0xFF1E1E1E),
+      surfaceContainerHighest: Color(0xFF424242),
+      onSurfaceVariant: Colors.white70,
+    ),
+    useMaterial3: true,
+  );
+
+  static final light = ThemeData(
+    colorScheme: const ColorScheme(
+      brightness: Brightness.light,
+      primary: Color(0xFF1976D2),
+      onPrimary: Colors.white,
+      secondary: Color(0xFF42A5F5),
+      onSecondary: Colors.white,
+      tertiary: Color(0xFF66BB6A),
+      onTertiary: Colors.white,
+      error: Color(0xFFE57373),
+      onError: Colors.white,
+      surface: Color(0xFFFFFFFF),
+      onSurface: Colors.black,
+      surfaceContainer: Color(0xFFF5F5F5),
+      surfaceContainerHighest: Color(0xFFE0E0E0),
+      onSurfaceVariant: Colors.black54,
+    ),
+    useMaterial3: true,
+  );
+
+  static final nier = ThemeData(
+    colorScheme: const ColorScheme(
+      brightness: Brightness.light,
+      primary: Color(0xFF7B6D53),
+      onPrimary: Colors.white,
+      secondary: Color(0xFFA99A7E),
+      onSecondary: Colors.white,
+      tertiary: Color(0xFFA99A7E),
+      onTertiary: Colors.white,
+      error: Color(0xFFD32F2F),
+      onError: Colors.white,
+      surface: Color(0xFFCFCBAA),
+      onSurface: Color(0xFF333333),
+      surfaceContainer: Color(0xFFBDB898),
+      surfaceContainerHighest: Color(0xFFA8A388),
+      onSurfaceVariant: Color(0xFF545454),
+    ),
+    useMaterial3: true,
+  );
+}

lib/src/widgets/kanji_card.dart

@@ -19,13 +19,19 @@ class KanjiCard extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final bgColor = backgroundColor ?? theme.cardTheme.color ?? theme.colorScheme.surface;
-    final fgColor = textColor ?? theme.textTheme.bodyMedium?.color ?? theme.colorScheme.onSurface;
+    final bgColor =
+        backgroundColor ?? theme.cardTheme.color ?? theme.colorScheme.surface;
+    final fgColor =
+        textColor ??
+        theme.textTheme.bodyMedium?.color ??
+        theme.colorScheme.onSurface;
 
     return Card(
       elevation: theme.cardTheme.elevation ?? 12,
       color: bgColor,
-      shape: theme.cardTheme.shape ?? RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
+      shape:
+          theme.cardTheme.shape ??
+          RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
       child: SizedBox(
         width: 360,
         height: 240,

lib/src/widgets/options_grid.dart

@@ -5,6 +5,10 @@ class OptionsGrid extends StatelessWidget {
   final void Function(String) onSelected;
   final Color? buttonColor;
   final Color? textColor;
+  final bool isDisabled;
+  final String? selectedOption;
+  final List<String>? correctAnswers;
+  final bool showResult;
 
   const OptionsGrid({
     super.key,
@@ -12,6 +16,10 @@ class OptionsGrid extends StatelessWidget {
     required this.onSelected,
     this.buttonColor,
     this.textColor,
+    this.isDisabled = false,
+    this.selectedOption,
+    this.correctAnswers,
+    this.showResult = false,
   });
 
   @override
@@ -27,13 +35,28 @@ class OptionsGrid extends StatelessWidget {
       runSpacing: 10,
       alignment: WrapAlignment.center,
       children: options.map((o) {
+        Color currentButtonColor = bg;
+        Color currentTextColor = fg;
+
+        if (showResult) {
+          final normalizedOption = o.trim().toLowerCase();
+          if (correctAnswers != null &&
+              correctAnswers!
+                  .map((e) => e.trim().toLowerCase())
+                  .contains(normalizedOption)) {
+            currentButtonColor = theme.colorScheme.tertiary;
+          }
+        }
+
         return SizedBox(
           width: 160,
           child: ElevatedButton(
-            onPressed: () => onSelected(o),
+            onPressed: isDisabled || o == '---' ? null : () => onSelected(o),
             style: ElevatedButton.styleFrom(
-              backgroundColor: bg,
-              foregroundColor: fg,
+              backgroundColor: currentButtonColor,
+              foregroundColor: currentTextColor,
+              disabledBackgroundColor:
+                  theme.colorScheme.surfaceContainerHighest,
               shape: RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(12),
               ),
@@ -41,7 +64,9 @@ class OptionsGrid extends StatelessWidget {
             ),
             child: Text(
               o,
-              style: TextStyle(fontSize: 20, color: fg),
+              style: theme.textTheme.titleMedium?.copyWith(
+                color: currentTextColor,
+              ),
               textAlign: TextAlign.center,
             ),
           ),

linux/.gitignore

@@ -1 +0,0 @@
-flutter/ephemeral

linux/CMakeLists.txt

@@ -1,128 +0,0 @@
-# Project-level configuration.
-cmake_minimum_required(VERSION 3.13)
-project(runner LANGUAGES CXX)
-
-# The name of the executable created for the application. Change this to change
-# the on-disk name of your application.
-set(BINARY_NAME "untitled1")
-# The unique GTK application identifier for this application. See:
-# https://wiki.gnome.org/HowDoI/ChooseApplicationID
-set(APPLICATION_ID "com.example.untitled1")
-
-# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
-# versions of CMake.
-cmake_policy(SET CMP0063 NEW)
-
-# Load bundled libraries from the lib/ directory relative to the binary.
-set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
-
-# Root filesystem for cross-building.
-if(FLUTTER_TARGET_PLATFORM_SYSROOT)
-  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
-  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
-  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
-  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
-  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-endif()
-
-# Define build configuration options.
-if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
-  set(CMAKE_BUILD_TYPE "Debug" CACHE
-    STRING "Flutter build mode" FORCE)
-  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
-    "Debug" "Profile" "Release")
-endif()
-
-# Compilation settings that should be applied to most targets.
-#
-# Be cautious about adding new options here, as plugins use this function by
-# default. In most cases, you should add new options to specific targets instead
-# of modifying this function.
-function(APPLY_STANDARD_SETTINGS TARGET)
-  target_compile_features(${TARGET} PUBLIC cxx_std_14)
-  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
-  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
-  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
-endfunction()
-
-# Flutter library and tool build rules.
-set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
-add_subdirectory(${FLUTTER_MANAGED_DIR})
-
-# System-level dependencies.
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
-
-# Application build; see runner/CMakeLists.txt.
-add_subdirectory("runner")
-
-# Run the Flutter tool portions of the build. This must not be removed.
-add_dependencies(${BINARY_NAME} flutter_assemble)
-
-# Only the install-generated bundle's copy of the executable will launch
-# correctly, since the resources must in the right relative locations. To avoid
-# people trying to run the unbundled copy, put it in a subdirectory instead of
-# the default top-level location.
-set_target_properties(${BINARY_NAME}
-  PROPERTIES
-  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
-)
-
-
-# Generated plugin build rules, which manage building the plugins and adding
-# them to the application.
-include(flutter/generated_plugins.cmake)
-
-
-# === Installation ===
-# By default, "installing" just makes a relocatable bundle in the build
-# directory.
-set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
-endif()
-
-# Start with a clean build bundle directory every time.
-install(CODE "
-  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
-  " COMPONENT Runtime)
-
-set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
-set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
-
-install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
-  COMPONENT Runtime)
-
-install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-  COMPONENT Runtime)
-
-foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
-  install(FILES "${bundled_library}"
-    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endforeach(bundled_library)
-
-# Copy the native assets provided by the build.dart from all packages.
-set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
-install(DIRECTORY "${NATIVE_ASSETS_DIR}"
-   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-   COMPONENT Runtime)
-
-# Fully re-copy the assets directory on each build to avoid having stale files
-# from a previous install.
-set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
-install(CODE "
-  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
-  " COMPONENT Runtime)
-install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
-  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
-
-# Install the AOT library on non-Debug builds only.
-if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
-  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()

linux/flutter/CMakeLists.txt

@@ -1,88 +0,0 @@
-# This file controls Flutter-level build steps. It should not be edited.
-cmake_minimum_required(VERSION 3.10)
-
-set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
-
-# Configuration provided via flutter tool.
-include(${EPHEMERAL_DIR}/generated_config.cmake)
-
-# TODO: Move the rest of this into files in ephemeral. See
-# https://github.com/flutter/flutter/issues/57146.
-
-# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
-# which isn't available in 3.10.
-function(list_prepend LIST_NAME PREFIX)
-    set(NEW_LIST "")
-    foreach(element ${${LIST_NAME}})
-        list(APPEND NEW_LIST "${PREFIX}${element}")
-    endforeach(element)
-    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
-endfunction()
-
-# === Flutter Library ===
-# System-level dependencies.
-find_package(PkgConfig REQUIRED)
-pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
-pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
-pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
-
-set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
-
-# Published to parent scope for install step.
-set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
-set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
-set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
-set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
-
-list(APPEND FLUTTER_LIBRARY_HEADERS
-  "fl_basic_message_channel.h"
-  "fl_binary_codec.h"
-  "fl_binary_messenger.h"
-  "fl_dart_project.h"
-  "fl_engine.h"
-  "fl_json_message_codec.h"
-  "fl_json_method_codec.h"
-  "fl_message_codec.h"
-  "fl_method_call.h"
-  "fl_method_channel.h"
-  "fl_method_codec.h"
-  "fl_method_response.h"
-  "fl_plugin_registrar.h"
-  "fl_plugin_registry.h"
-  "fl_standard_message_codec.h"
-  "fl_standard_method_codec.h"
-  "fl_string_codec.h"
-  "fl_value.h"
-  "fl_view.h"
-  "flutter_linux.h"
-)
-list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
-add_library(flutter INTERFACE)
-target_include_directories(flutter INTERFACE
-  "${EPHEMERAL_DIR}"
-)
-target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
-target_link_libraries(flutter INTERFACE
-  PkgConfig::GTK
-  PkgConfig::GLIB
-  PkgConfig::GIO
-)
-add_dependencies(flutter flutter_assemble)
-
-# === Flutter tool backend ===
-# _phony_ is a non-existent file to force this command to run every time,
-# since currently there's no way to get a full input/output list from the
-# flutter tool.
-add_custom_command(
-  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
-    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
-  COMMAND ${CMAKE_COMMAND} -E env
-    ${FLUTTER_TOOL_ENVIRONMENT}
-    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
-      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
-  VERBATIM
-)
-add_custom_target(flutter_assemble DEPENDS
-  "${FLUTTER_LIBRARY}"
-  ${FLUTTER_LIBRARY_HEADERS}
-)

linux/flutter/generated_plugin_registrant.cc

@@ -1,15 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#include "generated_plugin_registrant.h"
-
-#include <audioplayers_linux/audioplayers_linux_plugin.h>
-
-void fl_register_plugins(FlPluginRegistry* registry) {
-  g_autoptr(FlPluginRegistrar) audioplayers_linux_registrar =
-      fl_plugin_registry_get_registrar_for_plugin(registry, "AudioplayersLinuxPlugin");
-  audioplayers_linux_plugin_register_with_registrar(audioplayers_linux_registrar);
-}

linux/flutter/generated_plugin_registrant.h

@@ -1,15 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-// clang-format off
-
-#ifndef GENERATED_PLUGIN_REGISTRANT_
-#define GENERATED_PLUGIN_REGISTRANT_
-
-#include <flutter_linux/flutter_linux.h>
-
-// Registers Flutter plugins.
-void fl_register_plugins(FlPluginRegistry* registry);
-
-#endif  // GENERATED_PLUGIN_REGISTRANT_

linux/flutter/generated_plugins.cmake

@@ -1,24 +0,0 @@
-#
-# Generated file, do not edit.
-#
-
-list(APPEND FLUTTER_PLUGIN_LIST
-  audioplayers_linux
-)
-
-list(APPEND FLUTTER_FFI_PLUGIN_LIST
-)
-
-set(PLUGIN_BUNDLED_LIBRARIES)
-
-foreach(plugin ${FLUTTER_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
-  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
-endforeach(plugin)
-
-foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
-  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
-  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
-endforeach(ffi_plugin)

linux/runner/CMakeLists.txt

@@ -1,26 +0,0 @@
-cmake_minimum_required(VERSION 3.13)
-project(runner LANGUAGES CXX)
-
-# Define the application target. To change its name, change BINARY_NAME in the
-# top-level CMakeLists.txt, not the value here, or `flutter run` will no longer
-# work.
-#
-# Any new source files that you add to the application should be added here.
-add_executable(${BINARY_NAME}
-  "main.cc"
-  "my_application.cc"
-  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
-)
-
-# Apply the standard set of build settings. This can be removed for applications
-# that need different build settings.
-apply_standard_settings(${BINARY_NAME})
-
-# Add preprocessor definitions for the application ID.
-add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
-
-# Add dependency libraries. Add any application-specific dependencies here.
-target_link_libraries(${BINARY_NAME} PRIVATE flutter)
-target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
-
-target_include_directories(${BINARY_NAME} PRIVATE "${CMAKE_SOURCE_DIR}")

linux/runner/main.cc

@@ -1,6 +0,0 @@
-#include "my_application.h"
-
-int main(int argc, char** argv) {
-  g_autoptr(MyApplication) app = my_application_new();
-  return g_application_run(G_APPLICATION(app), argc, argv);
-}

linux/runner/my_application.cc

@@ -1,144 +0,0 @@
-#include "my_application.h"
-
-#include <flutter_linux/flutter_linux.h>
-#ifdef GDK_WINDOWING_X11
-#include <gdk/gdkx.h>
-#endif
-
-#include "flutter/generated_plugin_registrant.h"
-
-struct _MyApplication {
-  GtkApplication parent_instance;
-  char** dart_entrypoint_arguments;
-};
-
-G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
-
-// Called when first Flutter frame received.
-static void first_frame_cb(MyApplication* self, FlView *view)
-{
-  gtk_widget_show(gtk_widget_get_toplevel(GTK_WIDGET(view)));
-}
-
-// Implements GApplication::activate.
-static void my_application_activate(GApplication* application) {
-  MyApplication* self = MY_APPLICATION(application);
-  GtkWindow* window =
-      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
-
-  // Use a header bar when running in GNOME as this is the common style used
-  // by applications and is the setup most users will be using (e.g. Ubuntu
-  // desktop).
-  // If running on X and not using GNOME then just use a traditional title bar
-  // in case the window manager does more exotic layout, e.g. tiling.
-  // If running on Wayland assume the header bar will work (may need changing
-  // if future cases occur).
-  gboolean use_header_bar = TRUE;
-#ifdef GDK_WINDOWING_X11
-  GdkScreen* screen = gtk_window_get_screen(window);
-  if (GDK_IS_X11_SCREEN(screen)) {
-    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
-    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
-      use_header_bar = FALSE;
-    }
-  }
-#endif
-  if (use_header_bar) {
-    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
-    gtk_widget_show(GTK_WIDGET(header_bar));
-    gtk_header_bar_set_title(header_bar, "untitled1");
-    gtk_header_bar_set_show_close_button(header_bar, TRUE);
-    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
-  } else {
-    gtk_window_set_title(window, "untitled1");
-  }
-
-  gtk_window_set_default_size(window, 1280, 720);
-
-  g_autoptr(FlDartProject) project = fl_dart_project_new();
-  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
-
-  FlView* view = fl_view_new(project);
-  GdkRGBA background_color;
-  // Background defaults to black, override it here if necessary, e.g. #00000000 for transparent.
-  gdk_rgba_parse(&background_color, "#000000");
-  fl_view_set_background_color(view, &background_color);
-  gtk_widget_show(GTK_WIDGET(view));
-  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
-
-  // Show the window when Flutter renders.
-  // Requires the view to be realized so we can start rendering.
-  g_signal_connect_swapped(view, "first-frame", G_CALLBACK(first_frame_cb), self);
-  gtk_widget_realize(GTK_WIDGET(view));
-
-  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
-
-  gtk_widget_grab_focus(GTK_WIDGET(view));
-}
-
-// Implements GApplication::local_command_line.
-static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
-  MyApplication* self = MY_APPLICATION(application);
-  // Strip out the first argument as it is the binary name.
-  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
-
-  g_autoptr(GError) error = nullptr;
-  if (!g_application_register(application, nullptr, &error)) {
-     g_warning("Failed to register: %s", error->message);
-     *exit_status = 1;
-     return TRUE;
-  }
-
-  g_application_activate(application);
-  *exit_status = 0;
-
-  return TRUE;
-}
-
-// Implements GApplication::startup.
-static void my_application_startup(GApplication* application) {
-  //MyApplication* self = MY_APPLICATION(object);
-
-  // Perform any actions required at application startup.
-
-  G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
-}
-
-// Implements GApplication::shutdown.
-static void my_application_shutdown(GApplication* application) {
-  //MyApplication* self = MY_APPLICATION(object);
-
-  // Perform any actions required at application shutdown.
-
-  G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
-}
-
-// Implements GObject::dispose.
-static void my_application_dispose(GObject* object) {
-  MyApplication* self = MY_APPLICATION(object);
-  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
-  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
-}
-
-static void my_application_class_init(MyApplicationClass* klass) {
-  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
-  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
-  G_APPLICATION_CLASS(klass)->startup = my_application_startup;
-  G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
-  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
-}
-
-static void my_application_init(MyApplication* self) {}
-
-MyApplication* my_application_new() {
-  // Set the program name to the application ID, which helps various systems
-  // like GTK and desktop environments map this running application to its
-  // corresponding .desktop file. This ensures better integration by allowing
-  // the application to be recognized beyond its binary name.
-  g_set_prgname(APPLICATION_ID);
-
-  return MY_APPLICATION(g_object_new(my_application_get_type(),
-                                     "application-id", APPLICATION_ID,
-                                     "flags", G_APPLICATION_NON_UNIQUE,
-                                     nullptr));
-}

linux/runner/my_application.h

@@ -1,18 +0,0 @@
-#ifndef FLUTTER_MY_APPLICATION_H_
-#define FLUTTER_MY_APPLICATION_H_
-
-#include <gtk/gtk.h>
-
-G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
-                     GtkApplication)
-
-/**
- * my_application_new:
- *
- * Creates a new Flutter-based application.
- *
- * Returns: a new #MyApplication.
- */
-MyApplication* my_application_new();
-
-#endif  // FLUTTER_MY_APPLICATION_H_

macos/.gitignore

@@ -1,7 +0,0 @@
-# Flutter-related
-**/Flutter/ephemeral/
-**/Pods/
-
-# Xcode-related
-**/dgph
-**/xcuserdata/

macos/Flutter/Flutter-Debug.xcconfig

@@ -1 +0,0 @@
-#include "ephemeral/Flutter-Generated.xcconfig"

macos/Flutter/Flutter-Release.xcconfig

@@ -1 +0,0 @@
-#include "ephemeral/Flutter-Generated.xcconfig"

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -1,18 +0,0 @@
-//
-//  Generated file. Do not edit.
-//
-
-import FlutterMacOS
-import Foundation
-
-import audioplayers_darwin
-import path_provider_foundation
-import shared_preferences_foundation
-import sqflite_darwin
-
-func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
-  AudioplayersDarwinPlugin.register(with: registry.registrar(forPlugin: "AudioplayersDarwinPlugin"))
-  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
-  SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
-  SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin"))
-}

macos/Runner.xcodeproj/project.pbxproj

@@ -1,705 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 54;
-	objects = {
-
-/* Begin PBXAggregateTarget section */
-		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
-			isa = PBXAggregateTarget;
-			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
-			buildPhases = (
-				33CC111E2044C6BF0003C045 /* ShellScript */,
-			);
-			dependencies = (
-			);
-			name = "Flutter Assemble";
-			productName = FLX;
-		};
-/* End PBXAggregateTarget section */
-
-/* Begin PBXBuildFile section */
-		331C80D8294CF71000263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C80D7294CF71000263BE5 /* RunnerTests.swift */; };
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-/* End XCBuildConfiguration section */
-
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macos/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -1,99 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "1510"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-               BuildableName = "untitled1.app"
-               BlueprintName = "Runner"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "untitled1.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <Testables>
-         <TestableReference
-            skipped = "NO"
-            parallelizable = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "331C80D4294CF70F00263BE5"
-               BuildableName = "RunnerTests.xctest"
-               BlueprintName = "RunnerTests"
-               ReferencedContainer = "container:Runner.xcodeproj">
-            </BuildableReference>
-         </TestableReference>
-      </Testables>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      enableGPUValidationMode = "1"
-      allowLocationSimulation = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "untitled1.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Profile"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <BuildableProductRunnable
-         runnableDebuggingMode = "0">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
-            BuildableName = "untitled1.app"
-            BlueprintName = "Runner"
-            ReferencedContainer = "container:Runner.xcodeproj">
-         </BuildableReference>
-      </BuildableProductRunnable>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>

macos/Runner.xcworkspace/contents.xcworkspacedata

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "group:Runner.xcodeproj">
-   </FileRef>
-</Workspace>

macos/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IDEDidComputeMac32BitWarning</key>
-	<true/>
-</dict>
-</plist>

macos/Runner/AppDelegate.swift

@@ -1,13 +0,0 @@
-import Cocoa
-import FlutterMacOS
-
-@main
-class AppDelegate: FlutterAppDelegate {
-  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
-    return true
-  }
-
-  override func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
-    return true
-  }
-}

macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,68 +0,0 @@
-{
-  "images" : [
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_16.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "16x16",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_32.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "32x32",
-      "idiom" : "mac",
-      "filename" : "app_icon_64.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_128.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "128x128",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_256.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "256x256",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "2x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_512.png",
-      "scale" : "1x"
-    },
-    {
-      "size" : "512x512",
-      "idiom" : "mac",
-      "filename" : "app_icon_1024.png",
-      "scale" : "2x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}