import 'dart:convert';

import 'package:archive/archive.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:miaoji_zhang/shared/services/local_export_service.dart';

void main() {
  test('local export creates readable CSV and privacy-safe JSON', () {
    final bytes = LocalExportService.buildZipFromSnapshot(
      {
        'schemaVersion': 1,
        'exportedAt': '2026-07-21T00:00:00.000Z',
        'ledgers': [
          {
            'id': 1,
            'name': '日常账本',
            'iconKey': 'wallet',
            'isDefault': true,
            'updatedAt': '2026-07-21T00:00:00.000Z',
          },
        ],
        'categories': [
          {
            'id': 2,
            'name': '餐饮',
            'iconKey': 'food',
            'colorKey': 'coral',
            'type': 'expense',
            'sortOrder': 10,
            'isCustom': false,
            'isDeleted': false,
            'updatedAt': '2026-07-21T00:00:00.000Z',
          },
        ],
        'transactions': [
          {
            'id': 3,
            'ledgerId': 1,
            'categoryId': 2,
            'categoryName': '餐饮',
            'categoryIcon': 'food',
            'categoryColor': 'coral',
            'type': 'expense',
            'amount': 12.5,
            'note': '午饭,"套餐"\n已报销',
            'paymentMethod': '微信',
            'source': 'manual',
            'sourceText': null,
            'occurredAt': '2026-07-21T04:00:00.000Z',
            'isDeleted': false,
            'updatedAt': '2026-07-21T04:00:00.000Z',
          },
        ],
        'budgets': [
          {
            'ledgerId': 1,
            'period': 202607,
            'categoryId': 2,
            'amount': 800.0,
            'recurring': true,
            'updatedAt': '2026-07-21T00:00:00.000Z',
          },
        ],
      },
      profile: const {'mode': 'guest', 'nickname': '游客'},
    );

    final archive = ZipDecoder().decodeBytes(bytes);
    expect(
      archive.map((file) => file.name),
      containsAll(['transactions.csv', 'budgets.csv', 'jizhi-backup.json']),
    );

    final transactionCsv = utf8.decode(
      archive.findFile('transactions.csv')!.readBytes()!,
    );
    expect(transactionCsv, contains('12.50'));
    expect(transactionCsv, contains('"午饭,""套餐""\n已报销"'));

    final json = utf8.decode(
      archive.findFile('jizhi-backup.json')!.readBytes()!,
    );
    final document = jsonDecode(json) as Map<String, dynamic>;
    expect(document['transactions'], hasLength(1));
    expect((document['profile'] as Map)['mode'], 'guest');
    expect(json, isNot(contains('passwordHash')));
    expect(json, isNot(contains('local_db_key')));
  });
}