import { describe, it, expect, beforeAll } from 'vitest';
import { resetDb, withClient } from '../helpers/db.js';
import { migrateUp } from '../../lib/db/migrate.js';

describe('migrate', () => {
  beforeAll(async () => { await resetDb(); });

  it('creates schema_migrations table on first run', async () => {
    await migrateUp();
    await withClient(async (c) => {
      const { rows } = await c.query(
        `SELECT to_regclass('public.schema_migrations') AS t;`
      );
      expect(rows[0].t).toBe('schema_migrations');
    });
  });

  it('is idempotent — second run is a no-op', async () => {
    await migrateUp();
    await migrateUp();
    await withClient(async (c) => {
      const { rows } = await c.query(
        `SELECT count(*)::int AS n FROM schema_migrations;`
      );
      expect(rows[0].n).toBeGreaterThanOrEqual(0);
    });
  });
});