// 功能描述：账单金额严格解析、筛选请求和过期会话保护；版本：1.0.0。
import 'package:flutter_test/flutter_test.dart';
import 'package:http/http.dart' as http;
import 'package:http/testing.dart';
import 'package:user_app/data/repositories/client_repository.dart';
import 'package:user_app/data/services/api_client.dart';
import 'package:user_app/domain/models/wallet_bill.dart';

void main() {
  test('钱包缺失或小数金额不能显示为零余额', () async {
    for (final data in [
      '{}',
      '{"balance":1.5,"withdrawal_balance":0}',
      '{"balance":0,"withdrawal_balance":1}',
    ]) {
      final repo = ClientRepository(
        ApiClient(
          () => 't',
          client: MockClient((_) async => http.Response('{"code":0,"details":$data}', 200)),
        ),
      );
      await expectLater(repo.wallet(), throwsA(isA<ApiException>()));
    }
  });
  final valid = <String, Object?>{
    'identity': 'r1',
    'direction': 'expense',
    'amount': 100,
    'fee': 0,
    'balance_after': 500,
    'created_at': '2026-09-08T08:00:00Z',
  };
  test('金额和收支不推测、不截断为整数', () {
    expect(WalletBill.fromJson(valid).signedAmount, '-¥1.00');
    for (final patch in [
      {'amount': 1.5},
      {'amount': -1},
      {'fee': '0'},
      {'direction': 'unknown'},
      {'created_at': ''},
    ]) {
      expect(() => WalletBill.fromJson({...valid, ...patch}), throwsFormatException);
    }
  });
  test('账单筛选和游标传递，不将错误响应当空列表', () async {
    final repo = ClientRepository(
      ApiClient(
        () => 't',
        client: MockClient((r) async {
          expect(r.url.queryParameters, {'direction': 'income', 'cursor': '50'});
          return http.Response('{"code":0,"details":{}}', 200);
        }),
      ),
    );
    await expectLater(
      repo.walletBills(direction: 'income', cursor: '50'),
      throwsA(isA<ApiException>()),
    );
  });
  test('切换账户后迟到的账单不可显示', () async {
    var token = 'alice';
    final repo = ClientRepository(
      ApiClient(
        () => token,
        client: MockClient((r) async {
          token = 'bob';
          return http.Response('{"code":0,"details":{"items":[],"next_cursor":""}}', 200);
        }),
      ),
    );
    await expectLater(repo.walletBills(), throwsA(isA<SessionExpiredException>()));
  });
}