import test from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import { DatabaseSync } from 'node:sqlite';
import { createBackup, isCliEntryPoint } from '../scripts/backup-data.mjs';

test('backup creates data copy and keeps configured retention', async () => {
  const tmp = await fs.mkdtemp(path.join(os.tmpdir(), 'mcp-backup-'));
  const dataDir = path.join(tmp, 'data');
  const backupsDir = path.join(dataDir, 'backups');
  const authDir = path.join(dataDir, 'runtime', 'whatsapp-auth');

  await fs.mkdir(authDir, { recursive: true });
  await fs.mkdir(path.join(backupsDir, 'maquina-pessoal-2026-08-01'), { recursive: true });
  await fs.mkdir(path.join(backupsDir, 'maquina-pessoal-2026-08-02'), { recursive: true });
  await fs.writeFile(path.join(dataDir, 'maquina-pessoal.db'), 'db');
  await fs.writeFile(path.join(authDir, 'session.json'), 'auth');

  try {
    const result = await createBackup({ dataDir, now: () => new Date('2026-08-03T10:00:00Z'), retention: 1 });

    assert.match(result.file, /maquina-pessoal-2026-08-03$/);
    assert.equal(await fs.readFile(path.join(result.file, 'maquina-pessoal.db'), 'utf8'), 'db');
    assert.equal(await fs.readFile(path.join(result.file, 'whatsapp-auth', 'session.json'), 'utf8'), 'auth');
    assert.deepEqual(await fs.readdir(backupsDir), ['maquina-pessoal-2026-08-03']);
  } finally {
    await fs.rm(tmp, { recursive: true, force: true });
  }
});

test('CLI guard matches Windows file URLs from argv paths', () => {
  assert.equal(
    isCliEntryPoint('file:///D:/PROJETOS/COMERCIAL%20GTI/MAQUINA%20COMERCIAL%20PESSOAL/scripts/backup-data.mjs', 'D:\\PROJETOS\\COMERCIAL GTI\\MAQUINA COMERCIAL PESSOAL\\scripts\\backup-data.mjs'),
    true
  );
});

test('backup captures committed WAL data while source database remains open', async () => {
  const tmp = await fs.mkdtemp(path.join(os.tmpdir(), 'mcp-backup-wal-'));
  const dataDir = path.join(tmp, 'data');
  const authDir = path.join(dataDir, 'runtime', 'whatsapp-auth');
  const dbPath = path.join(dataDir, 'maquina-pessoal.db');
  let db;

  await fs.mkdir(authDir, { recursive: true });
  await fs.writeFile(path.join(authDir, 'session.json'), 'auth');

  try {
    db = new DatabaseSync(dbPath);
    db.exec('PRAGMA journal_mode = WAL;');
    db.exec('CREATE TABLE records (id INTEGER PRIMARY KEY, name TEXT NOT NULL);');
    db.exec("INSERT INTO records (name) VALUES ('committed in wal');");

    await fs.stat(`${dbPath}-wal`);

    const result = await createBackup({ dataDir, now: () => new Date('2026-08-03T10:00:00Z'), retention: 1 });
    const backupDb = new DatabaseSync(path.join(result.file, 'maquina-pessoal.db'), { readOnly: true });

    try {
      assert.deepEqual(backupDb.prepare('SELECT name FROM records').all().map((row) => row.name), ['committed in wal']);
    } finally {
      backupDb.close();
    }
  } finally {
    db?.close();
    await fs.rm(tmp, { recursive: true, force: true });
  }
});