// src/main/db/schema.ts
// 설계서 03의 drizzle-orm 스키마 정의

import { sqliteTable, text, integer, real, index, uniqueIndex } from 'drizzle-orm/sqlite-core'

// ── history ──────────────────────────────────────────────
export const history = sqliteTable(
  'history',
  {
    id: text('id').primaryKey(),
    title: text('title'),
    originalText: text('original_text').notNull(),
    polishedText: text('polished_text'),
    focusedApp: text('focused_app'),
    focusedAppName: text('focused_app_name'),
    focusedAppWindowTitle: text('focused_app_window_title'),
    mode: text('mode', { enum: ['dictation', 'translate', 'command', 'caption', 'file-transcription'] })
      .notNull()
      .default('dictation'),
    status: text('status', { enum: ['completed', 'cancelled', 'error'] })
      .notNull()
      .default('completed'),
    errorCode: text('error_code'),
    audioLocalPath: text('audio_local_path'),
    duration: real('duration').notNull(),
    detectedLanguage: text('detected_language'),
    micDevice: text('mic_device'),
    wordCount: integer('word_count').notNull().default(0),
    sttModel: text('stt_model'),
    llmModel: text('llm_model'),
    sttLatencyMs: integer('stt_latency_ms'),
    llmLatencyMs: integer('llm_latency_ms'),
    createdAt: integer('created_at').notNull(),
    updatedAt: integer('updated_at').notNull(),
    appVersion: text('app_version').notNull().default('1.0.0'),
    /** Phase 12.2: 회의록 자동 요약 텍스트 (마크다운) */
    summaryText: text('summary_text'),
  },
  (table) => [
    index('idx_history_created_at').on(table.createdAt),
    index('idx_history_status').on(table.status),
    index('idx_history_detected_language').on(table.detectedLanguage),
    index('idx_history_focused_app_name').on(table.focusedAppName),
    index('idx_history_mode').on(table.mode)
  ]
)

// ── dictionary ───────────────────────────────────────────
export const dictionary = sqliteTable(
  'dictionary',
  {
    id: text('id').primaryKey(),
    word: text('word').notNull(),
    pronunciation: text('pronunciation'),
    category: text('category', { enum: ['user', 'auto', 'technical'] })
      .notNull()
      .default('user'),
    usageCount: integer('usage_count').notNull().default(0),
    lastUsedAt: integer('last_used_at'),
    createdAt: integer('created_at').notNull(),
    updatedAt: integer('updated_at').notNull()
  },
  (table) => [
    uniqueIndex('idx_dictionary_word_category').on(table.word, table.category),
    index('idx_dictionary_created_at').on(table.createdAt),
    index('idx_dictionary_usage_count').on(table.usageCount)
  ]
)

// ── stats ────────────────────────────────────────────────
export const stats = sqliteTable('stats', {
  id: integer('id').primaryKey(),
  totalDuration: real('total_duration').notNull().default(0),
  totalWords: integer('total_words').notNull().default(0),
  sessionCount: integer('session_count').notNull().default(0),
  streakDays: integer('streak_days').notNull().default(0),
  lastSessionAt: integer('last_session_at'),
  lastUpdated: integer('last_updated').notNull()
})

// ── memo_tags (Phase 10.3) ────────────────────────────────
export const memoTags = sqliteTable(
  'memo_tags',
  {
    id: text('id').primaryKey(),
    historyId: text('history_id').notNull(),
    tag: text('tag').notNull(),
    createdAt: integer('created_at').notNull(),
  },
  (table) => [
    uniqueIndex('idx_memo_tags_unique').on(table.historyId, table.tag),
    index('idx_memo_tags_history_id').on(table.historyId),
    index('idx_memo_tags_tag').on(table.tag),
  ]
)

export type MemoTagRow = typeof memoTags.$inferSelect
export type NewMemoTagRow = typeof memoTags.$inferInsert

// ── daily_usage (Phase 11) ────────────────────────────────
export const dailyUsage = sqliteTable(
  'daily_usage',
  {
    id:      integer('id').primaryKey({ autoIncrement: true }),
    date:    text('date').notNull(),
    feature: text('feature').notNull(),
    count:   integer('count').notNull().default(0),
  },
  (table) => [
    uniqueIndex('idx_daily_usage_date_feature').on(table.date, table.feature),
    index('idx_daily_usage_date').on(table.date),
  ]
)

export type DailyUsageRow = typeof dailyUsage.$inferSelect
export type NewDailyUsageRow = typeof dailyUsage.$inferInsert

// ── rag_documents (Phase 13.2) ──────────────────────────
export const ragDocuments = sqliteTable(
  'rag_documents',
  {
    id: text('id').primaryKey(),
    fileName: text('file_name').notNull(),
    filePath: text('file_path').notNull(),
    fileType: text('file_type', { enum: ['txt', 'md', 'pdf', 'docx'] }).notNull(),
    chunkCount: integer('chunk_count').notNull().default(0),
    indexed: integer('indexed', { mode: 'boolean' }).notNull().default(false),
    indexedAt: integer('indexed_at'),
    addedAt: integer('added_at').notNull(),
  },
  (table) => [
    index('idx_rag_documents_added_at').on(table.addedAt),
  ]
)

export const ragChunks = sqliteTable(
  'rag_chunks',
  {
    id: text('id').primaryKey(),
    documentId: text('document_id').notNull(),
    content: text('content').notNull(),
    /** 임베딩 벡터 (JSON 직렬화 float[]) */
    embedding: text('embedding').notNull(),
    chunkIndex: integer('chunk_index').notNull(),
  },
  (table) => [
    index('idx_rag_chunks_document_id').on(table.documentId),
  ]
)

export type RAGDocumentRow = typeof ragDocuments.$inferSelect
export type NewRAGDocumentRow = typeof ragDocuments.$inferInsert
export type RAGChunkRow = typeof ragChunks.$inferSelect
export type NewRAGChunkRow = typeof ragChunks.$inferInsert

// ── meetingSessions (Phase 14) ──────────────────────────
export const meetingSessions = sqliteTable(
  'meeting_sessions',
  {
    id: text('id').primaryKey(),
    title: text('title'),
    status: text('status', {
      enum: ['recording', 'processing', 'completed', 'error'],
    }).notNull().default('recording'),
    startedAt: integer('started_at').notNull(),
    endedAt: integer('ended_at'),
    durationMs: integer('duration_ms'),
    rawTranscript: text('raw_transcript'),
    editedTranscript: text('edited_transcript'),
    minutesMarkdown: text('minutes_markdown'),
    minutesJson: text('minutes_json'),
    sttModel: text('stt_model'),
    llmModel: text('llm_model'),
    sttLatencyMs: integer('stt_latency_ms'),
    llmLatencyMs: integer('llm_latency_ms'),
    errorMessage: text('error_message'),
    createdAt: integer('created_at').notNull(),
    updatedAt: integer('updated_at').notNull(),
  },
  (table) => [
    index('idx_meeting_sessions_created_at').on(table.createdAt),
    index('idx_meeting_sessions_status').on(table.status),
  ]
)

// ── meetingMemos (Phase 14) ─────────────────────────────
export const meetingMemos = sqliteTable(
  'meeting_memos',
  {
    id: text('id').primaryKey(),
    sessionId: text('session_id').notNull(),
    content: text('content').notNull(),
    timestampMs: integer('timestamp_ms').notNull(),
    createdAt: integer('created_at').notNull(),
  },
  (table) => [
    index('idx_meeting_memos_session_id').on(table.sessionId),
    index('idx_meeting_memos_timestamp').on(table.timestampMs),
  ]
)

export type MeetingSessionRow = typeof meetingSessions.$inferSelect
export type NewMeetingSessionRow = typeof meetingSessions.$inferInsert
export type MeetingMemoRow = typeof meetingMemos.$inferSelect
export type NewMeetingMemoRow = typeof meetingMemos.$inferInsert

// ── meetingDocuments (Phase 14.5) ───────────────────────
export const meetingDocuments = sqliteTable(
  'meeting_documents',
  {
    id: text('id').primaryKey(),
    sessionId: text('session_id').notNull(),
    templateType: text('template_type', {
      enum: ['minutes', 'report', 'idea-note', 'custom', 'mindmap'],
    }).notNull(),
    title: text('title').notNull(),
    content: text('content').notNull().default(''),
    promptUsed: text('prompt_used'),
    llmModel: text('llm_model'),
    llmLatencyMs: integer('llm_latency_ms'),
    createdAt: integer('created_at').notNull(),
    updatedAt: integer('updated_at').notNull(),
  },
  (table) => [
    index('idx_meeting_documents_session_id').on(table.sessionId),
  ]
)

export type MeetingDocumentRow = typeof meetingDocuments.$inferSelect
export type NewMeetingDocumentRow = typeof meetingDocuments.$inferInsert

// ── 타입 추출 ────────────────────────────────────────────
export type History = typeof history.$inferSelect
export type NewHistory = typeof history.$inferInsert
export type Dictionary = typeof dictionary.$inferSelect
export type NewDictionary = typeof dictionary.$inferInsert
export type Stats = typeof stats.$inferSelect