import 'package:flutter_test/flutter_test.dart';
import 'package:halkyon_app/halkyon_app.dart';
import 'package:halkyon_app/testing.dart';
import 'package:material_ui/material_ui.dart';

/// Keeps what was copied, without the system's clipboard and its timer.
class _Clipboard() implements SecretClipboard {
  final copied = <String>[];

  @override
  Future<void> copy(String text) async => copied.add(text);
}

void main() {
  late TestAppDependencies dependencies;
  late _Clipboard clipboard;

  setUp(() {
    dependencies = TestAppDependencies();
    clipboard = _Clipboard();
  });

  Future<void> show(WidgetTester tester) async {
    tester.view.physicalSize = const Size(1000, 1800);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.reset);
    await tester.pumpWidget(
      testApp(
        Scaffold(
          body: SingleChildScrollView(
            child: AgentsSection(clipboard: clipboard),
          ),
        ),
        dependencies: dependencies,
      ),
    );
    await tester.pumpAndSettle();
  }

  Future<void> make(WidgetTester tester, String handle) async {
    await tester.tap(find.text('Make an agent'));
    await tester.pumpAndSettle();
    await tester.enterText(find.byType(TextField).first, 'Claude');
    await tester.enterText(find.byType(TextField).last, handle);
    await tester.pump();
    await tester.tap(find.widgetWithText(FilledButton, 'Make'));
    await tester.pumpAndSettle();
  }

  testWidgets('nothing where the instance offers no agents', (tester) async {
    dependencies.agentGateway.isOffered = false;

    await show(tester);

    expect(find.text('Agents'), findsNothing);
  });

  testWidgets('makes an agent and shows its token once, to copy', (
    tester,
  ) async {
    await show(tester);
    expect(find.text('No agents yet.'), findsOneWidget);

    await make(tester, 'claude_bot');

    expect(find.text('Token for @claude_bot'), findsOneWidget);
    expect(find.text('TOKEN-1'), findsOneWidget);
    await tester.tap(find.text('Copy token'));
    await tester.pump();
    expect(clipboard.copied, ['TOKEN-1']);

    await tester.tap(find.text('Done'));
    await tester.pumpAndSettle();
    expect(find.text('TOKEN-1'), findsNothing);
    expect(find.text('Claude'), findsOneWidget);
    expect(find.text('@claude_bot · never signed in'), findsOneWidget);
  });

  testWidgets('a handle someone has is said so in the dialog', (tester) async {
    dependencies.agentGateway.taken.add('claude_bot');
    await show(tester);

    await make(tester, 'claude_bot');

    expect(find.text('Someone else has this handle.'), findsOneWidget);
    expect(find.byType(AlertDialog), findsOneWidget);
    expect(dependencies.agentGateway.agents, isEmpty);
  });

  testWidgets('takes a token back and deletes, each once confirmed', (
    tester,
  ) async {
    await show(tester);
    await make(tester, 'claude_bot');
    await tester.tap(find.text('Done'));
    await tester.pumpAndSettle();

    await tester.tap(find.byTooltip('Options for @claude_bot'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Take back token'));
    await tester.pumpAndSettle();
    expect(find.text("Take back @claude_bot's token?"), findsOneWidget);
    await tester.tap(find.widgetWithText(FilledButton, 'Take back token'));
    await tester.pumpAndSettle();
    expect(find.text('@claude_bot · no token'), findsOneWidget);

    await tester.tap(find.byTooltip('Options for @claude_bot'));
    await tester.pumpAndSettle();
    await tester.tap(find.text('Delete'));
    await tester.pumpAndSettle();
    expect(find.text('Delete @claude_bot?'), findsOneWidget);
    await tester.tap(find.widgetWithText(FilledButton, 'Delete'));
    await tester.pumpAndSettle();
    expect(find.text('No agents yet.'), findsOneWidget);
    expect(dependencies.agentGateway.agents, isEmpty);
  });
}