import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:jiu_client/core/auth/auth_state.dart';
import 'package:jiu_client/core/theme/themes.dart';
import 'package:jiu_client/models/product_option.dart';
import 'package:jiu_client/models/warehouse.dart';
import 'package:jiu_client/providers/warehouse_provider.dart';
import 'package:jiu_client/providers/product_option_provider.dart';
import 'package:jiu_client/screens/stock_in/stock_in_form_screen.dart';

class _FakeWarehouses extends WarehouseListNotifier {
  @override
  Future<List<Warehouse>> build() async =>
      const [Warehouse(id: 1, name: '主仓', isDefault: true)];
}

class _FakeNames extends ProductNameListNotifier {
  @override
  Future<List<ProductNameOption>> build() async => const [
        ProductNameOption(id: 10, name: '茅台飞天', code: 'P001'),
        ProductNameOption(id: 11, name: '五粮液', code: 'P002'),
      ];
}

class _FakeSeries extends ProductSeriesListNotifier {
  @override
  Future<List<ProductSeriesOption>> build() async => const [
        ProductSeriesOption(id: 20, name: '53度'),
      ];
}

class _FakeSpecs extends ProductSpecListNotifier {
  @override
  Future<List<ProductSpecOption>> build() async => const [
        ProductSpecOption(id: 30, name: '500ml'),
      ];
}

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  SharedPreferences.setMockInitialValues({});

  testWidgets('stock-in form: picking 商品名称 fills the cell', (tester) async {
    tester.view.physicalSize = const Size(1400, 1000);
    tester.view.devicePixelRatio = 1.0;
    addTearDown(tester.view.resetPhysicalSize);

    await tester.pumpWidget(ProviderScope(
      overrides: [
        warehouseListProvider.overrideWith(() => _FakeWarehouses()),
        productNameListProvider.overrideWith(() => _FakeNames()),
        productSeriesListProvider.overrideWith(() => _FakeSeries()),
        productSpecListProvider.overrideWith(() => _FakeSpecs()),
        isReadonlyProvider.overrideWithValue(false),
      ],
      child: MaterialApp(
        theme: buildTheme('a'),
        home: const Scaffold(body: StockInFormScreen()),
      ),
    ));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 100));

    // Tap the 商品名称 cell to focus/open its popup.
    final nameCell = find.text('选择商品名称');
    expect(nameCell, findsWidgets);
    await tester.tap(nameCell.first);
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 100));

    // The option list should appear.
    expect(find.text('五粮液'), findsWidgets,
        reason: 'popup list should show options');

    // Tap the option.
    await tester.tap(find.text('五粮液').last);
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 100));

    // After picking, the cell should display 五粮液 and the hint should be gone.
    expect(find.text('五粮液'), findsOneWidget,
        reason: 'cell should show the picked name');
    expect(find.text('选择商品名称'), findsNothing,
        reason: 'hint should be replaced by the picked name');
  });
}