import mongoose from 'mongoose';

const vocabularySchema = new mongoose.Schema({
	userId: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true },
	wkSubjectId: { type: Number, required: true },
	characters: { type: String, required: true },
	meanings: { type: [String], default: [] },
	readings: [{
		reading: String,
		primary: { type: Boolean, default: false }
	}],
	partsOfSpeech: { type: [String], default: [] },
	level: { type: Number, required: true },
	meaningMnemonic: { type: String, default: '' },
	readingMnemonic: { type: String, default: '' },
	componentSubjectIds: { type: [Number], default: [] },
	pronunciationAudios: [{
		url: String,
		contentType: String,
		gender: String
	}],
	contextSentences: [{
		ja: String,
		en: String
	}]
});

vocabularySchema.index({ userId: 1, wkSubjectId: 1 }, { unique: true });
vocabularySchema.index({ userId: 1, level: 1 });

export const Vocabulary = mongoose.model('Vocabulary', vocabularySchema);