import { createI18n } from 'vue-i18n';

const messages = {
  en: {
    common: {
      close: 'Close',
      cancel: 'Cancel',
    },
    nav: {
      dashboard: 'Dashboard',
      review: 'Review',
      collection: 'Collection',
      settings: 'Settings',
      sync: 'Sync',
      logout: 'Logout',
      menu: 'Menu',
    },
    login: {
      instruction: 'Enter your WaniKani V2 API Key to login',
      placeholder: 'Paste key here...',
      button: 'Login',
      failed: 'Login failed. Is server running?',
    },
    alerts: {
      syncSuccess: 'Sync complete! Collection: {count}',
      syncFailed: 'Sync failed.',
      logoutConfirm: 'Are you sure you want to log out? This will end your session.',
    },
    lesson: {
      phasePrimer: 'Study',
      phaseDemo: 'Observation',
      phaseGuided: 'Guided',
      phasePractice: 'Recall',
      understand: 'I Understand',
      ready: 'Ready to Draw',
      startPractice: 'Start Practice',
      continue: 'Continue',
      streak: 'Correct: {n} / {total}',
      hint: 'Show Hint (Resets Streak)',
      hintAction: 'Hint',
      watchAgain: 'Watch Again',
      completeTitle: 'Lesson Complete!',
      completeBody: 'You have unlocked new Kanji for review.',
      learned: "You've learned {n} new kanji.",
      components: 'Components',
      observe: 'Observe Stroke Order',
      trace: 'Trace',
      drawStep: 'Draw ({n}/{total})',
      backToDashboard: 'Back to Dashboard',
    },
    hero: {
      lessons: 'Lessons',
      newContent: 'New content available',
      welcome: 'Welcome Back',
      subtitle: 'Your mind is ready.',
      start: 'Start Review',
      readyToReview: 'Ready to review',
      noReviews: 'No Reviews',
      allCaughtUp: 'All caught up',
      nextIn: 'Next review in',
      now: 'now',
      prioritize: 'Prioritize Lower Levels ({count})',
    },
    stats: {
      mastery: 'Mastery (Guru+)',
      srsDistribution: 'SRS Levels',
      accuracy: 'Global Accuracy',
      correct: 'Correct',
      total: 'Total',
      next24: 'Next 24h',
      availableNow: 'Available Now',
      inHours: 'In {n} hour | In {n} hours',
      noIncoming: 'No reviews incoming for 24 hours.',
      items: 'items',
      reviewsCount: '{count} reviews',

      consistency: 'Study Consistency',
      less: 'Less',
      more: 'More',

      streakTitle: 'Study Streak',
      days: 'days',
      shieldActive: 'Zen Shield Active: Protects streak if you miss 1 day.',
      shieldCooldown: 'Regenerating: {n} days left',

      ghostTitle: 'Ghost Items',
      ghostSubtitle: 'Lowest Accuracy',
      noGhosts: 'No ghosts found! Keep it up.',
    },
    settings: {
      title: 'Settings',
      batchSize: 'Review Batch Size',
      items: 'Items',
      language: 'Language',
      drawingTolerance: 'Drawing Tolerance',
      strict: 'Strict',
      loose: 'Loose',
      save: 'Save & Close',
    },
    review: {
      meaning: 'Meaning',
      level: 'Level',
      draw: 'Draw correctly',
      hint: 'Hint Shown',
      showHint: 'Show Hint',
      redoLesson: 'Redo Lesson',
      tryAgain: 'Try again',
      correct: 'Correct!',
      next: 'NEXT',
      sessionComplete: 'Session Complete!',
      levelup: 'You leveled up your Kanji skills.',
      back: 'Back to Collection',
      caughtUp: 'All Caught Up!',
      noReviews: 'No reviews available right now.',
      viewCollection: 'View Collection',
      queue: 'Session queue:',
      loading: 'Loading Kanji...',
    },
    collection: {
      searchLabel: 'Search Kanji, Meaning, or Reading...',
      placeholder: "e.g. 'water', 'mizu', '水'",
      loading: 'Loading Collection...',
      noMatches: 'No matches found',
      tryDifferent: 'Try searching for a different meaning or reading.',
      levelHeader: 'LEVEL',
      onyomi: "On'yomi",
      kunyomi: "Kun'yomi",
      nanori: 'Nanori',
      close: 'Close',
      startLesson: 'Start Lesson',
      redoLesson: 'Redo Lesson',
    },
  },
  de: {
    common: {
      close: 'Schließen',
      cancel: 'Abbrechen',
    },
    nav: {
      dashboard: 'Übersicht',
      review: 'Lernen',
      collection: 'Sammlung',
      settings: 'Einstellungen',
      sync: 'Sync',
      logout: 'Abmelden',
      menu: 'Menü',
    },
    login: {
      instruction: 'Gib deinen WaniKani V2 API Key ein',
      placeholder: 'Key hier einfügen...',
      button: 'Anmelden',
      failed: 'Login fehlgeschlagen. Läuft der Server?',
    },
    alerts: {
      syncSuccess: 'Sync fertig! Sammlung: {count}',
      syncFailed: 'Sync fehlgeschlagen.',
      logoutConfirm: 'Möchtest du dich wirklich abmelden? Deine Sitzung wird beendet.',
    },
    lesson: {
      phasePrimer: 'Lernen',
      phaseDemo: 'Beobachtung',
      phaseGuided: 'Geführt',
      phasePractice: 'Abruf',
      understand: 'Verstanden',
      ready: 'Bereit zum Zeichnen',
      startPractice: 'Üben Starten',
      continue: 'Weiter',
      streak: 'Richtig: {n} / {total}',
      hint: 'Hinweis (Setzt Serie zurück)',
      hintAction: 'Hinweis',
      watchAgain: 'Nochmal ansehen',
      completeTitle: 'Lektion Fertig!',
      completeBody: 'Neue Kanji für Reviews freigeschaltet.',
      learned: 'Du hast {n} neue Kanji gelernt.',
      components: 'Komponenten',
      observe: 'Strichfolge beobachten',
      trace: 'Nachzeichnen',
      drawStep: 'Zeichnen ({n}/{total})',
      backToDashboard: 'Zurück zur Übersicht',
    },
    hero: {
      lessons: 'Lektionen',
      newContent: 'Neue Inhalte verfügbar',
      welcome: 'Willkommen zurück',
      subtitle: 'Dein Geist ist bereit.',
      start: 'Starten',
      readyToReview: 'Bereit zum Wiederholen',
      noReviews: 'Alles erledigt',
      allCaughtUp: 'Alles auf dem neuesten Stand',
      nextIn: 'Nächste Review in',
      now: 'jetzt',
      prioritize: 'Niedrige Stufen zuerst ({count})',
    },
    stats: {
      mastery: 'Meisterschaft (Guru+)',
      srsDistribution: 'SRS Verteilung',
      accuracy: 'Genauigkeit',
      correct: 'Richtig',
      total: 'Gesamt',
      next24: 'Nächste 24h',
      availableNow: 'Jetzt verfügbar',
      inHours: 'In {n} Stunde | In {n} Stunden',
      noIncoming: 'Keine Reviews in den nächsten 24h.',
      items: 'Einträge',
      reviewsCount: '{count} Reviews',

      consistency: 'Lern-Konstanz',
      less: 'Weniger',
      more: 'Mehr',

      streakTitle: 'Lern-Serie',
      days: 'Tage',
      shieldActive: 'Zen-Schild Aktiv: Schützt dich bei einem verpassten Tag.',
      shieldCooldown: 'Regeneriert: noch {n} Tage',

      ghostTitle: 'Geister-Items',
      ghostSubtitle: 'Niedrigste Genauigkeit',
      noGhosts: 'Keine Geister gefunden! Weiter so.',
    },
    settings: {
      title: 'Einstellungen',
      batchSize: 'Anzahl pro Sitzung',
      items: 'Einträge',
      language: 'Sprache',
      drawingTolerance: 'Zeichentoleranz',
      strict: 'Strikt',
      loose: 'Locker',
      save: 'Speichern & Schließen',
    },
    review: {
      meaning: 'Bedeutung',
      level: 'Stufe',
      draw: 'Zeichne das Kanji',
      hint: 'Hinweis angezeigt',
      showHint: 'Hinweis zeigen',
      redoLesson: 'Lektion wiederholen',
      tryAgain: 'Nochmal versuchen',
      correct: 'Richtig!',
      next: 'WEITER',
      sessionComplete: 'Sitzung beendet!',
      levelup: 'Du hast deine Kanji-Skills verbessert.',
      back: 'Zurück zur Sammlung',
      caughtUp: 'Alles erledigt!',
      noReviews: 'Gerade keine Reviews verfügbar.',
      viewCollection: 'Zur Sammlung',
      queue: 'Verbleibend:',
      loading: 'Lade Kanji...',
    },
    collection: {
      searchLabel: 'Suche Kanji, Bedeutung oder Lesung...',
      placeholder: "z.B. 'Wasser', 'mizu'",
      loading: 'Lade Sammlung...',
      noMatches: 'Keine Treffer',
      tryDifferent: 'Versuche einen anderen Suchbegriff.',
      levelHeader: 'STUFE',
      onyomi: "On'yomi",
      kunyomi: "Kun'yomi",
      nanori: 'Nanori',
      close: 'Schließen',
      startLesson: 'Lektion starten',
      redoLesson: 'Lektion wiederholen',
    },
  },
  ja: {
    common: {
      close: '閉じる',
      cancel: 'キャンセル',
    },
    nav: {
      dashboard: 'ダッシュボード',
      review: '復習',
      collection: 'コレクション',
      settings: '設定',
      sync: '同期',
      logout: 'ログアウト',
      menu: 'メニュー',
    },
    login: {
      instruction: 'WaniKani V2 APIキーを入力してください',
      placeholder: 'キーを貼り付け...',
      button: 'ログイン',
      failed: 'ログイン失敗。サーバーは起動していますか？',
    },
    alerts: {
      syncSuccess: '同期完了！ コレクション: {count}',
      syncFailed: '同期に失敗しました。',
      logoutConfirm: 'ログアウトしてもよろしいですか？セッションが終了します。',
    },
    lesson: {
      phasePrimer: '学習',
      phaseDemo: '観察',
      phaseGuided: 'ガイド',
      phasePractice: '想起',
      understand: '理解した',
      ready: '描いてみる',
      startPractice: '練習開始',
      continue: '次へ',
      streak: '正解: {n} / {total}',
      hint: 'ヒント (連勝リセット)',
      hintAction: 'ヒント',
      watchAgain: 'もう一度見る',
      completeTitle: 'レッスン完了！',
      completeBody: '新しい漢字がレビューに追加されました。',
      learned: '{n}個の新しい漢字を覚えました。',
      components: '構成要素',
      observe: '書き順を見る',
      trace: 'なぞる',
      drawStep: '書く ({n}/{total})',
      backToDashboard: 'ダッシュボードに戻る',
    },
    hero: {
      lessons: 'レッスン',
      newContent: '新しいコンテンツがあります',
      welcome: 'お帰りなさい',
      subtitle: '準備は完了です。',
      start: '復習開始',
      readyToReview: '復習の準備ができています',
      noReviews: 'レビューなし',
      allCaughtUp: 'すべて完了しています',
      nextIn: '次の復習まで',
      now: '今',
      prioritize: '低レベルを優先 ({count})',
    },
    stats: {
      mastery: '習得度 (Guru+)',
      srsDistribution: 'SRS分布',
      accuracy: '正解率',
      correct: '正解',
      total: '合計',
      next24: '今後24時間',
      availableNow: '今すぐ可能',
      inHours: '{n}時間後',
      noIncoming: '24時間以内のレビューはありません。',
      items: '個',
      reviewsCount: '{count} レビュー',

      consistency: '学習の一貫性',
      less: '少',
      more: '多',

      streakTitle: '連続学習日数',
      days: '日',
      shieldActive: 'Zenシールド有効: 1日休んでもストリークを守ります。',
      shieldCooldown: '再チャージ中: 残り{n}日',

      ghostTitle: '苦手なアイテム',
      ghostSubtitle: '正解率が低い',
      noGhosts: '苦手なアイテムはありません！',
    },
    settings: {
      title: '設定',
      batchSize: '1回の復習数',
      items: '個',
      language: '言語 (Language)',
      drawingTolerance: '描画許容範囲',
      strict: '厳しい',
      loose: '甘い',
      save: '保存して閉じる',
    },
    review: {
      meaning: '意味',
      level: 'レベル',
      draw: '正しく描いてください',
      hint: 'ヒント表示',
      showHint: 'ヒントを表示',
      redoLesson: 'レッスンをやり直す',
      tryAgain: 'もう一度',
      correct: '正解！',
      next: '次へ',
      sessionComplete: 'セッション完了！',
      levelup: '漢字力がアップしました。',
      back: 'コレクションに戻る',
      caughtUp: '完了しました！',
      noReviews: '現在レビューするものはありません。',
      viewCollection: 'コレクションを見る',
      queue: '残り:',
      loading: '漢字を読み込み中...',
    },
    collection: {
      searchLabel: '漢字、意味、読みで検索...',
      placeholder: "例: '水', 'mizu'",
      loading: '読み込み中...',
      noMatches: '見つかりませんでした',
      tryDifferent: '別のキーワードで検索してください。',
      levelHeader: 'レベル',
      onyomi: '音読み',
      kunyomi: '訓読み',
      nanori: '名乗り',
      close: '閉じる',
      startLesson: 'レッスン開始',
      redoLesson: 'レッスンをやり直す',
    },
  },
};

const savedLocale = localStorage.getItem('zen_locale') || 'en';

const i18n = createI18n({
  legacy: false,
  locale: savedLocale,
  fallbackLocale: 'en',
  messages,
});

export default i18n;