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/app_controller.dart';
import 'package:hepan_everyday/app/hepan_app.dart';
import 'package:hepan_everyday/domain/app_snapshot.dart';

import '../support/fakes.dart';

void main() {
  setUpAll(tzdata.initializeTimeZones);
  for (final badBackup in [false, true]) {
    testWidgets(
      'corrupt primary with ${badBackup ? "corrupt" : "missing"} backup has confirmed fresh recovery',
      (tester) async {
        final store = DamagedStore(badBackup);
        final controller = AppController(
          store,
          FakeNotifications(),
          FakeCalendar(),
          DateTime.now,
        );
        await controller.initialize();
        await controller.restoreBackup();
        await tester.pumpWidget(HepanApp(controller: controller));
        await tester.pumpAndSettle();
        expect(controller.storageReady, isFalse);
        expect(find.text('重新建立课表'), findsOneWidget);
        await tester.tap(find.text('重新建立课表'));
        await tester.pumpAndSettle();
        await tester.tap(find.text('取消'));
        await tester.pumpAndSettle();
        expect(controller.storageReady, isFalse);
        expect(store.freshStarts, 0);
        await tester.tap(find.text('重新建立课表'));
        await tester.pumpAndSettle();
        await tester.tap(find.text('保留损坏文件并重新建立'));
        await tester.pumpAndSettle();
        expect(controller.storageReady, isTrue);
        await tester.tap(find.bySemanticsLabel('我的'));
        await tester.pumpAndSettle();
        await tester.ensureVisible(find.text('课表设置'));
        await tester.pumpAndSettle();
        await tester.tap(find.text('课表设置'));
        await tester.pumpAndSettle();
        await tester.tap(find.text('单色'));
        await tester.pumpAndSettle();
        expect(store.value!.settings.colorMode.name, 'single');
        expect(store.freshStarts, 1);
        await tester.pumpWidget(const SizedBox());
        controller.dispose();
      },
    );
  }
}

class DamagedStore extends MemoryStore {
  DamagedStore(this.badBackup);
  final bool badBackup;
  int freshStarts = 0;
  @override
  Future<AppSnapshot?> load() async =>
      value ?? (throw const FormatException('damaged'));
  @override
  Future<AppSnapshot> restoreBackup() async =>
      throw StateError(badBackup ? '备份损坏' : '没有备份');
  @override
  Future<AppSnapshot> startFresh() async {
    freshStarts++;
    return value = AppSnapshot();
  }
}