import 'package:cookit/src/recipes/views/widgets/recipe_card.dart';
import 'package:cookit/src/recipes/views/widgets/recipe_photo.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';

import '../support/fixtures.dart';
import '../support/test_app.dart';

Finder inSheet(Finder finder) => find.descendant(of: find.byType(BottomSheet), matching: finder);

void main() {
  testWidgets('"Hilf mir entscheiden" narrows down by Course and time', (tester) async {
    final app = await TestApp.create(tester);
    final courses = (await tester.runAsync(app.courses.allCourses))!;
    final dessert = courses.firstWhere((c) => c.name == 'Dessert');
    final main = courses.firstWhere((c) => c.name == 'Hauptgericht');
    await tester.runAsync(() async {
      await app.recipes.saveRecipe(
        recipe(
          id: 'a',
          name: 'Kaiserschmarrn',
          courseId: dessert.id,
        ).copyWith(prepMinutes: () => 10, cookMinutes: () => 10),
      );
      await app.recipes.saveRecipe(recipe(id: 'b', name: 'Tiramisu', courseId: dessert.id)); // 50 min
      await app.recipes.saveRecipe(recipe(id: 'c', name: 'Rinderrouladen', courseId: main.id));
    });
    await tester.pumpWidget(app.build());
    await app.settle(tester);

    await tester.tap(find.byTooltip('Hilf mir entscheiden'));
    await tester.pumpAndSettle();
    expect(find.text('Worauf hast du Lust?'), findsOneWidget);
    await tester.tap(inSheet(find.text('Dessert')));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Weiter'));
    await tester.pumpAndSettle();

    expect(find.text('Wie viel Zeit hast du?'), findsOneWidget);
    await tester.tap(find.text('bis 30 Min.'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Vorschlag zeigen'));
    await tester.pumpAndSettle();
    expect(find.text('1 Rezept passt'), findsOneWidget);
    expect(inSheet(find.text('Kaiserschmarrn')), findsOneWidget);

    await tester.tap(find.text('Rezept öffnen'));
    await app.settle(tester);
    expect(find.text('Kochmodus starten'), findsOneWidget);
    expect(find.text('Kaiserschmarrn'), findsOneWidget);

    await app.dispose(tester);
  });

  testWidgets('the decision helper offers a looser choice when nothing fits', (tester) async {
    final app = await TestApp.create(tester);
    await tester.runAsync(() => app.recipes.saveRecipe(recipe())); // 50 min, no Course
    await tester.pumpWidget(app.build());
    await app.settle(tester);

    await tester.tap(find.byTooltip('Hilf mir entscheiden'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Weiter'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('bis 30 Min.'));
    await tester.tap(find.text('Vorschlag zeigen'));
    await tester.pumpAndSettle();
    expect(find.text('Dazu passt leider nichts.'), findsOneWidget);

    await tester.tap(find.text('Ohne Zeitlimit: 1'));
    await tester.pumpAndSettle();
    expect(find.text('1 Rezept passt'), findsOneWidget);

    await app.dispose(tester);
  });

  testWidgets('Darstellung switches between light and dark', (tester) async {
    final app = await TestApp.create(tester);
    await tester.pumpWidget(app.build());
    await app.settle(tester);
    ThemeMode mode() => tester.widget<MaterialApp>(find.byType(MaterialApp)).themeMode!;
    expect(mode(), ThemeMode.light);

    await tester.tap(find.byTooltip('Einstellungen'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Dunkel'));
    await app.settle(tester);
    expect(mode(), ThemeMode.dark);

    await app.dispose(tester);
  });

  testWidgets('an own unit added in the settings is offered in the unit picker', (tester) async {
    final app = await TestApp.create(tester);
    await tester.pumpWidget(app.build());
    await app.settle(tester);

    await tester.tap(find.byTooltip('Einstellungen'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Maßeinheiten bearbeiten'));
    await app.settle(tester);
    await tester.tap(find.text('Einheit hinzufügen'));
    await tester.pumpAndSettle();
    await tester.enterText(find.byType(TextFormField), 'Würfel');
    await tester.tap(find.text('Speichern'));
    await app.settle(tester);
    expect(find.text('Würfel'), findsOneWidget);
    expect(find.text('Eigene Einheit'), findsOneWidget);

    await tester.tap(find.byTooltip('Zurück'));
    await tester.pumpAndSettle();
    await tester.tap(find.byTooltip('Zurück'));
    await app.settle(tester);
    await tester.tap(find.byTooltip('Neues Rezept'));
    await app.settle(tester);
    await tester.tap(find.text('–'));
    await tester.pumpAndSettle();
    expect(find.widgetWithText(ChoiceChip, 'Würfel'), findsOneWidget);

    await app.dispose(tester);
  });

  testWidgets('tapping a photo can make it the main Photo', (tester) async {
    final app = await TestApp.create(tester);
    final (first, second) = (await tester.runAsync(() async {
      final a = await app.photos.saveBytes(Uint8List.fromList([1]));
      final b = await app.photos.saveBytes(Uint8List.fromList([2]));
      await app.recipes.saveRecipe(recipe(photos: [a, b]));
      return (a, b);
    }))!;
    await tester.pumpWidget(app.build());
    await app.settle(tester);
    await tester.tap(find.descendant(of: find.byType(RecipeCard), matching: find.text('Focaccia')));
    await app.settle(tester);
    await tester.tap(find.byTooltip('Bearbeiten'));
    await app.settle(tester);

    expect(find.textContaining('das erste Foto ist das Hauptfoto'), findsOneWidget);
    // The photo is covered by its own tap layer, which is what receives the tap.
    await tester.tap(find.byType(RecipePhoto).at(1), warnIfMissed: false);
    await tester.pumpAndSettle();
    await tester.tap(find.text('Als Hauptfoto festlegen'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Speichern'));
    await app.settle(tester);

    expect((await tester.runAsync(() => app.recipes.getRecipe('r1')))!.photos, [second, first]);

    await app.dispose(tester);
  });

  testWidgets('"Zutaten teilen" shares the ingredients for the chosen servings', (tester) async {
    final shared = <Map<Object?, Object?>>[];
    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
      const MethodChannel('dev.fluttercommunity.plus/share'),
      (call) async {
        shared.add(call.arguments as Map<Object?, Object?>);
        return 'dev.fluttercommunity.plus/share/unavailable';
      },
    );
    final app = await TestApp.create(tester);
    await tester.runAsync(() => app.recipes.saveRecipe(recipe()));
    await tester.pumpWidget(app.build());
    await app.settle(tester);
    await tester.tap(find.descendant(of: find.byType(RecipeCard), matching: find.text('Focaccia')));
    await app.settle(tester);

    await tester.scrollUntilVisible(find.text('Zutaten teilen'), 200, scrollable: find.byType(Scrollable).first);
    await tester.tap(find.text('Zutaten teilen'));
    await tester.pumpAndSettle();
    await tester.tap(inSheet(find.byTooltip('Mehr Portionen')));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Teilen'));
    await tester.pumpAndSettle();

    expect(shared, hasLength(1));
    expect(shared.single['text'], '375 g Mehl\n2½–3¾ EL Olivenöl (gutes)\n\nRosmarin');
    expect(shared.single['subject'], 'Focaccia – Zutaten für 5 Portionen');

    await app.dispose(tester);
  });
}