import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:timezone/data/latest.dart' as tzdata;
import 'package:hepan_everyday/app/hepan_app.dart';
import 'package:hepan_everyday/services/app_update_service.dart';

import '../services/app_update_service_test.dart' show TestUpdateTransport;
import 'navigation_test.dart' show uiController;

Future<void> updateTile(WidgetTester tester) async {
  await tester.tap(find.bySemanticsLabel('个人设置'));
  await tester.pumpAndSettle();
  await tester.scrollUntilVisible(
    find.byKey(const Key('check-app-update')),
    250,
    scrollable: find.byType(Scrollable).first,
  );
  await tester.pumpAndSettle();
}

void main() {
  setUpAll(tzdata.initializeTimeZones);
  testWidgets(
    'startup checks after home and update opens the supplied browser link',
    (tester) async {
      final controller = uiController();
      await controller.initialize();
      final transport = TestUpdateTransport();
      Uri? opened;
      await tester.pumpWidget(
        HepanApp(
          controller: controller,
          updateService: AppUpdateService(
            transport: transport,
            currentBuild: 24,
          ),
          openUpdateDownload: (uri) async {
            opened = uri;
            return true;
          },
        ),
      );
      expect(transport.calls, 0);
      expect(find.byType(AlertDialog), findsNothing);
      await tester.pump(const Duration(seconds: 2));
      await tester.pumpAndSettle();
      expect(find.text('发现新版本 0.8.0'), findsOneWidget);
      expect(find.text('新增更新检查\n修复导入'), findsOneWidget);
      await tester.tap(find.text('立即更新'));
      await tester.pumpAndSettle();
      expect(
        opened.toString(),
        'https://app.glowtps.cn/downloads/TPSchedule.apk',
      );
      expect(transport.calls, 1);
      await tester.pumpWidget(const SizedBox());
      controller.dispose();
    },
  );
  testWidgets(
    'startup failure is quiet while manual checks report failure and latest version',
    (tester) async {
      final controller = uiController();
      await controller.initialize();
      final transport = TestUpdateTransport()
        ..response = const UpdateHttpResponse(503, []);
      await tester.pumpWidget(
        HepanApp(
          controller: controller,
          updateService: AppUpdateService(
            transport: transport,
            currentBuild: 26,
          ),
        ),
      );
      await tester.pump(const Duration(seconds: 2));
      await tester.pumpAndSettle();
      expect(find.byType(AlertDialog), findsNothing);
      expect(find.byType(SnackBar), findsNothing);
      await updateTile(tester);
      await tester.tap(find.byKey(const Key('check-app-update')));
      await tester.pumpAndSettle();
      expect(find.textContaining('暂时无法获取更新'), findsOneWidget);
      transport.response = TestUpdateTransport().response;
      await tester.pump(const Duration(seconds: 5));
      await tester.tap(find.byKey(const Key('check-app-update')));
      await tester.pumpAndSettle();
      expect(find.text('当前已是最新版本'), findsOneWidget);
      expect(transport.calls, 3);
      await tester.pumpWidget(const SizedBox());
      controller.dispose();
    },
  );
  testWidgets(
    'later dismisses startup prompt and manual check can show it again',
    (tester) async {
      final controller = uiController();
      await controller.initialize();
      var launches = 0;
      final transport = TestUpdateTransport();
      await tester.pumpWidget(
        HepanApp(
          controller: controller,
          updateService: AppUpdateService(
            transport: transport,
            currentBuild: 24,
          ),
          openUpdateDownload: (_) async {
            launches++;
            return false;
          },
        ),
      );
      await tester.pump(const Duration(seconds: 2));
      await tester.pumpAndSettle();
      await tester.tap(find.text('稍后'));
      await tester.pumpAndSettle();
      expect(launches, 0);
      await updateTile(tester);
      await tester.tap(find.byKey(const Key('check-app-update')));
      await tester.pumpAndSettle();
      await tester.tap(find.text('立即更新'));
      await tester.pumpAndSettle();
      expect(find.text('未能打开浏览器'), findsOneWidget);
      expect(find.byType(SelectableText), findsOneWidget);
      expect(launches, 1);
      await tester.pumpWidget(const SizedBox());
      controller.dispose();
    },
  );
  testWidgets('disposing before the startup delay cancels checks', (
    tester,
  ) async {
    final controller = uiController();
    await controller.initialize();
    final transport = TestUpdateTransport();
    await tester.pumpWidget(
      HepanApp(
        controller: controller,
        updateService: AppUpdateService(transport: transport),
      ),
    );
    await tester.pumpWidget(const SizedBox());
    await tester.pump(const Duration(seconds: 3));
    expect(transport.calls, 0);
    controller.dispose();
  });
  testWidgets('long release notes remain scrollable on a small phone', (
    tester,
  ) async {
    tester.view.physicalSize = const Size(360, 640);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);
    final controller = uiController();
    await controller.initialize();
    final transport = TestUpdateTransport();
    final body = jsonDecode(
      utf8.decode(transport.response.body),
    ) as Map<String, dynamic>;
    (body['latest'] as Map)['notes'] = List.filled(
      300,
      '更新功能说明，修复课程显示问题。',
    ).join('\n');
    transport.response = UpdateHttpResponse(200, utf8.encode(jsonEncode(body)));
    await tester.pumpWidget(
      HepanApp(
        controller: controller,
        updateService: AppUpdateService(transport: transport, currentBuild: 24),
      ),
    );
    await tester.pump(const Duration(seconds: 2));
    await tester.pumpAndSettle();
    expect(tester.takeException(), isNull);
    expect(find.text('立即更新'), findsOneWidget);
    await tester.tap(find.text('稍后'));
    await tester.pumpAndSettle();
    await tester.pumpWidget(const SizedBox());
    controller.dispose();
  });
}