import Database from 'better-sqlite3';
import fs from 'fs';
import os from 'os';
import path from 'path';
import { describe, expect, it, vi } from 'vitest';

describe('database migrations', () => {
  it('defaults Telegram backfill chats to direct messages', async () => {
    const repoRoot = process.cwd();
    const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nanoclaw-db-test-'));

    try {
      process.chdir(tempDir);
      fs.mkdirSync(path.join(tempDir, 'store'), { recursive: true });

      const dbPath = path.join(tempDir, 'store', 'messages.db');
      const legacyDb = new Database(dbPath);
      legacyDb.exec(`
        CREATE TABLE chats (
          jid TEXT PRIMARY KEY,
          name TEXT,
          last_message_time TEXT
        );
      `);
      legacyDb
        .prepare(
          `INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`,
        )
        .run('tg:12345', 'Telegram DM', '2024-01-01T00:00:00.000Z');
      legacyDb
        .prepare(
          `INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`,
        )
        .run('tg:-10012345', 'Telegram Group', '2024-01-01T00:00:01.000Z');
      legacyDb
        .prepare(
          `INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`,
        )
        .run('room@g.us', 'WhatsApp Group', '2024-01-01T00:00:02.000Z');
      legacyDb.close();

      vi.resetModules();
      const { initDatabase, getAllChats, _closeDatabase } =
        await import('./db.js');

      initDatabase();

      const chats = getAllChats();
      expect(chats.find((chat) => chat.jid === 'tg:12345')).toMatchObject({
        channel: 'telegram',
        is_group: 0,
      });
      expect(chats.find((chat) => chat.jid === 'tg:-10012345')).toMatchObject({
        channel: 'telegram',
        is_group: 0,
      });
      expect(chats.find((chat) => chat.jid === 'room@g.us')).toMatchObject({
        channel: 'whatsapp',
        is_group: 1,
      });

      _closeDatabase();
    } finally {
      process.chdir(repoRoot);
    }
  });
});