import 'package:clide/builtin/welcome/welcome.dart';
import 'package:clide/builtin/welcome/src/welcome_view.dart';
import 'package:clide/clide.dart';
import 'package:clide/extension/extension.dart';
import 'package:clide/kernel/kernel.dart';
import 'package:flutter/services.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';

import '../../helpers/kernel_fixture.dart';
import '../../helpers/widget_harness.dart';

void main() {
  group('WelcomeExtension', () {
    late KernelFixture f;

    setUp(() async {
      f = await KernelFixture.create(
        i18nCatalogs: {
          'builtin.welcome': {
            const Locale('en', 'US'): const {
              'title': {'translation': 'clide'},
              'subtitle': {'translation': 'IDE for Claude Code CLI'},
              'open-project': {'translation': 'Open project'},
              'open-project.hint': {'translation': 'Pick a git repository'},
              'tab.title': {'translation': 'Welcome'},
            },
          },
        },
      );
    });

    tearDown(() async => f.dispose());

    test('contributes a workspace tab with an i18n title key', () {
      final ext = WelcomeExtension();
      final tabs = ext.contributions.whereType<TabContribution>().toList();
      expect(tabs, hasLength(1));
      expect(tabs.first.slot, Slots.workspace);
      expect(tabs.first.titleKey, 'tab.title');
      expect(tabs.first.i18nNamespace, ext.id);
    });

    testWidgets('WelcomeView renders title + subtitle + start actions', (tester) async {
      await tester.pumpWidget(harness(f, const WelcomeView()));
      expect(find.text('clide'), findsOneWidget);
      expect(find.text('IDE for Claude Code CLI'), findsOneWidget);
      expect(find.text('Open folder…'), findsOneWidget);
    });

    testWidgets('TIPS card renders when the viewport is tall enough', (tester) async {
      tester.view.physicalSize = const Size(1200, 800);
      tester.view.devicePixelRatio = 1.0;
      addTearDown(tester.view.resetPhysicalSize);
      addTearDown(tester.view.resetDevicePixelRatio);
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      expect(find.text('TIPS'), findsOneWidget);
      expect(find.text('Quick open'), findsOneWidget);
    });

    testWidgets('TIPS card is hidden when the viewport is short', (tester) async {
      tester.view.physicalSize = const Size(1200, 500);
      tester.view.devicePixelRatio = 1.0;
      addTearDown(tester.view.resetPhysicalSize);
      addTearDown(tester.view.resetDevicePixelRatio);
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      expect(find.text('TIPS'), findsNothing);
    });

    testWidgets('status line shows "checking…" before toolchain resolution', (tester) async {
      await tester.pumpWidget(harness(f, const WelcomeView()));
      expect(find.text('checking…'), findsOneWidget);
    });

    testWidgets('status line shows "application ok" when all tools resolved', (tester) async {
      f.services.toolchain.applyResolved(const ResolvedPaths(
        git: '/usr/bin/git',
        pql: '/usr/bin/pql',
        tmux: '/usr/bin/tmux',
        shell: '/bin/bash',
      ));
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      expect(find.text('application ok'), findsOneWidget);
    });

    testWidgets('status line lists missing tools when some are absent', (tester) async {
      tester.view.physicalSize = const Size(1600, 900);
      tester.view.devicePixelRatio = 1.0;
      addTearDown(tester.view.resetPhysicalSize);
      addTearDown(tester.view.resetDevicePixelRatio);
      f.services.toolchain.applyResolved(const ResolvedPaths(
        pql: '/usr/bin/pql',
      ));
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      expect(find.textContaining('git not found'), findsOneWidget);
      expect(find.textContaining('tmux not found'), findsOneWidget);
    });

    testWidgets('theme-name link fires the theme.pick command when tapped', (tester) async {
      var invocations = 0;
      f.services.commands.register(CommandContribution(
        id: 'theme.pick',
        command: 'theme.pick',
        title: 'Theme: Pick',
        run: (_) async {
          invocations++;
          return IpcResponse.ok(id: '', data: const {});
        },
      ));
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      await tester.tap(find.textContaining('theme:'));
      await tester.pump();
      expect(invocations, 1);
    });

    testWidgets('Open folder tap kicks off the picker flow without throwing', (tester) async {
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      await tester.tap(find.text('Open folder…'));
      await tester.pumpAndSettle();
      // In the test harness, the platform channel returns null (no native
      // picker, no MissingPluginException), so the function returns
      // early without raising. The point is just to exercise the path.
      expect(tester.takeException(), isNull);
    });

    testWidgets(
      'sticky-startup toggle renders + flips when tapped (T-115)',
      (tester) async {
        // Seed a recent directly so we don't need a real git repo.
        await f.services.settings.set<String>(
          'app.recentProjects',
          '[{"path":"/tmp/clide-fixture","name":"clide-fixture","lastOpened":"2026-05-18T00:00:00.000Z"}]',
        );
        await f.services.project.loadRecents();
        tester.view.physicalSize = const Size(1200, 900);
        tester.view.devicePixelRatio = 1.0;
        addTearDown(tester.view.resetPhysicalSize);
        addTearDown(tester.view.resetDevicePixelRatio);
        await tester.pumpWidget(harness(f, const WelcomeView()));
        await tester.pump();
        expect(find.text('clide-fixture'), findsOneWidget);
        final toggle = find.byKey(const ValueKey('welcome.sticky./tmp/clide-fixture'));
        expect(toggle, findsOneWidget);
        await tester.tap(toggle, warnIfMissed: false);
        await tester.pump();
        expect(f.services.project.recents.first.startupSticky, isTrue);
      },
      // T-122: pumpWidget(WelcomeView) with a non-empty recents list
      // strands the test until the 10-min Flutter timeout, even after
      // ruling out ClideTooltip and find/tap shape. Cause not yet
      // localized — skip until reproduced in isolation.
      skip: true,
    );

    testWidgets('Open folder opens the fallback dialog when the picker throws MissingPluginException', (tester) async {
      // Pre-register a mock that throws — emulating a platform without
      // native picker support.
      tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(
        const MethodChannel('clide/window'),
        (call) async {
          if (call.method == 'pickDirectory') {
            throw MissingPluginException();
          }
          return null;
        },
      );
      await tester.pumpWidget(harness(f, const WelcomeView()));
      await tester.pumpAndSettle();
      await tester.tap(find.text('Open folder…'));
      await tester.pumpAndSettle();
      expect(f.services.dialog.isOpen, isTrue);
      f.services.dialog.dismiss();
      await tester.pumpAndSettle();
    });
  });
}