// Copyright 2019 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_app_icons/flutter_app_icons_platform_interface.dart';
import 'package:flutter_dashboard/widgets/commit_box.dart';
import 'package:flutter_dashboard/widgets/progress_button.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:url_launcher/link.dart';
import 'package:url_launcher_platform_interface/url_launcher_platform_interface.dart';

import '../utils/fake_flutter_app_icons.dart';
import '../utils/fake_url_launcher.dart';
import '../utils/generate_commit_for_tests.dart';
import '../utils/golden.dart';

void main() {
  final expectedCommit = generateCommitForTest(
    author: 'AuthoryMcAuthor Face',
    avatarUrl: 'https://avatars2.githubusercontent.com/u/2148558?v=4',
    message: 'commit message\n\nreview comments',
    repository: 'flutter/cocoon',
    sha: 'ShaShankRedemption',
  );
  final shortSha = expectedCommit.sha.substring(0, 7);
  final Widget basicApp = MaterialApp(
    theme: ThemeData(useMaterial3: false),
    home: Material(
      child: Center(
        child: SizedBox(
          height: 100.0,
          width: 100.0,
          child: CommitBox(commit: expectedCommit),
        ),
      ),
    ),
  );

  setUp(() {
    FlutterAppIconsPlatform.instance = FakeFlutterAppIcons();
  });

  testWidgets('CommitBox shows information correctly', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(basicApp);
    await expectGoldenMatches(find.byType(Overlay), 'commit_box_test.idle.png');
  });

  testWidgets('CommitBox shows overlay on click', (WidgetTester tester) async {
    await tester.pumpWidget(basicApp);

    expect(find.text(shortSha), findsNothing);
    expect(find.text(expectedCommit.author.login), findsNothing);

    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    expect(find.text(shortSha), findsOneWidget);
    expect(find.text(expectedCommit.author.login), findsOneWidget);

    await expectGoldenMatches(find.byType(Overlay), 'commit_box_test.open.png');
  });

  testWidgets('CommitBox overlay shows first line of commit message', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(basicApp);
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    expect(find.text(expectedCommit.message), findsNothing);
    expect(find.text('commit message'), findsOneWidget);
  });

  testWidgets('CommitBox closes overlay on click out', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(basicApp);

    // Open the overlay
    await tester.tap(find.byType(CommitBox));
    await tester.pump();
    expect(find.text(shortSha), findsOneWidget);

    // Since the overlay positions itself a little below the center of the widget,
    // it is safe to click the center of the widget to close it again.
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    expect(find.text(shortSha), findsNothing);
  });

  testWidgets('CommitBox shows disabled button with a helpful tooltip', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(basicApp);

    // Open the overlay
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    // Find the schedule button.
    final tooltip =
        tester.firstWidget(find.byKey(const ValueKey('schedulePostsubmit')))
            as Tooltip;
    expect(tooltip.message, contains('Only enabled for release branches'));

    final button = tester.firstWidget<ProgressButton>(
      find.descendant(
        of: find.byWidget(tooltip),
        matching: find.byType(ProgressButton),
      ),
    );
    expect(button.onPressed, isNull, reason: 'Should be disabled');
  });

  testWidgets('CommitBox shows enabled button that schedules post-submits', (
    WidgetTester tester,
  ) async {
    var scheduled = 0;
    await tester.pumpWidget(
      MaterialApp(
        theme: ThemeData(useMaterial3: false),
        home: Material(
          child: CommitBox(
            commit: generateCommitForTest(
              author: 'foo@bar.com',
              message: 'commit message\n\nreview comments',
              sha: 'ShaShankRedemption',
            ),
            schedulePostsubmitBuild: () async {
              scheduled++;
            },
          ),
        ),
      ),
    );

    // Open the overlay
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    // Find the schedule button.
    final tooltip =
        tester.firstWidget(find.byKey(const ValueKey('schedulePostsubmit')))
            as Tooltip;
    expect(
      tooltip.message,
      contains('For release branches, the post-submit artifacts are not'),
    );
    final button = tooltip.child!;
    await tester.tap(find.byWidget(button));
    expect(scheduled, 1, reason: 'Should have been scheduled once');
  });

  testWidgets('tapping sha in CommitBox redirects to GitHub', (
    WidgetTester tester,
  ) async {
    final urlLauncher = FakeUrlLauncher();
    UrlLauncherPlatform.instance = urlLauncher;

    await tester.pumpWidget(basicApp);

    // Open the overlay
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    // Tap the redirect button
    await tester.tap(find.byType(Link));
    await tester.pump();

    expect(urlLauncher.launches, isNotEmpty);
    expect(
      urlLauncher.launches.single,
      'https://github.com/${expectedCommit.repository}/commit/${expectedCommit.sha}',
    );
  });

  testWidgets('clicking copy icon in CommitBox adds sha to clipboard', (
    WidgetTester tester,
  ) async {
    final log = <MethodCall>[];
    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
      SystemChannels.platform,
      (MethodCall methodCall) async => log.add(methodCall),
    );

    await tester.pumpWidget(basicApp);

    // Open the overlay
    await tester.tap(find.byType(CommitBox));
    await tester.pump();

    // Tap the copy button
    await tester.tap(find.byIcon(Icons.copy));
    await tester.pump();

    expect(
      (log.last.arguments as Object) as Map<String, dynamic>,
      <String, String>{'text': expectedCommit.sha},
    );
  });
}