import { describe, expect, it } from 'vitest';
import {
  BACKUP_SCHEDULE_VERSION,
  normalizeBackupScheduleConfig,
} from './backupSchedule';

describe('normalizeBackupScheduleConfig', () => {
  const now = new Date('2026-02-26T08:10:00.000Z');

  it('returns cadence-only defaults when schedule is missing', () => {
    const { config, requiresMigration } = normalizeBackupScheduleConfig({
      value: undefined,
      timezoneFallback: 'UTC',
      now,
    });

    expect(requiresMigration).toBe(true);
    expect(config).toEqual({
      version: BACKUP_SCHEDULE_VERSION,
      enabledCadences: ['daily', 'weekly'],
      timezone: 'UTC',
      anchorLocalDate: '2026-02-26',
      updatedAt: '2026-02-26T08:10:00.000Z',
    });
    expect('legacyRunTime' in config).toBe(false);
  });

  it('migrates legacy schedule objects that include deprecated runtime keys', () => {
    const { config, requiresMigration } = normalizeBackupScheduleConfig({
      value: {
        version: 1,
        enabledCadences: ['daily', 'monthly'],
        timezone: 'UTC',
        legacyRunTime: '23:59',
        anchorLocalDate: '2026-02-26',
        updatedAt: '2026-02-25T07:00:00.000Z',
      },
      timezoneFallback: 'UTC',
      now,
    });

    expect(requiresMigration).toBe(true);
    expect(config).toEqual({
      version: BACKUP_SCHEDULE_VERSION,
      enabledCadences: ['daily', 'monthly'],
      timezone: 'UTC',
      anchorLocalDate: '2026-02-26',
      updatedAt: '2026-02-25T07:00:00.000Z',
    });
    expect('legacyRunTime' in config).toBe(false);
  });

  it('does not request migration for valid cadence-only schedule objects', () => {
    const { config, requiresMigration } = normalizeBackupScheduleConfig({
      value: {
        version: 1,
        enabledCadences: ['daily', 'biweekly', 'monthly'],
        timezone: 'America/New_York',
        anchorLocalDate: '2026-02-25',
        updatedAt: '2026-02-25T07:00:00.000Z',
      },
      timezoneFallback: 'UTC',
      now,
    });

    expect(requiresMigration).toBe(false);
    expect(config).toEqual({
      version: BACKUP_SCHEDULE_VERSION,
      enabledCadences: ['daily', 'biweekly', 'monthly'],
      timezone: 'America/New_York',
      anchorLocalDate: '2026-02-25',
      updatedAt: '2026-02-25T07:00:00.000Z',
    });
  });
});