import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import 'package:timetrack/features/projects/domain/project.dart';
import 'package:timetrack/features/timer/domain/timer_state.dart';
import 'package:timetrack/features/timer/domain/timer_notifier.dart';

class TimerControls extends ConsumerWidget {
  const TimerControls({
    super.key,
    required this.state,
    required this.selectedProject,
  });

  final TimerState state;
  final Project? selectedProject;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final notifier = ref.read(timerNotifierProvider.notifier);
    final isRunning = state is TimerRunning;
    final colorScheme = Theme.of(context).colorScheme;

    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        if (!isRunning)
          FilledButton.icon(
            key: const Key('start_button'),
            onPressed: selectedProject == null
                ? null
                : () => notifier.start(selectedProject!),
            icon: const Icon(Icons.play_arrow_rounded),
            label: const Text('Start'),
            style: FilledButton.styleFrom(
              minimumSize: const Size(160, 56),
              textStyle: Theme.of(context).textTheme.titleMedium,
            ),
          )
        else ...[
          FilledButton.icon(
            key: const Key('stop_button'),
            onPressed: () => notifier.stop(),
            icon: const Icon(Icons.stop_rounded),
            label: const Text('Stop'),
            style: FilledButton.styleFrom(
              backgroundColor: colorScheme.error,
              foregroundColor: colorScheme.onError,
              minimumSize: const Size(160, 56),
              textStyle: Theme.of(context).textTheme.titleMedium,
            ),
          ),
          const SizedBox(height: 12),
          TextButton.icon(
            key: const Key('discard_button'),
            onPressed: () => _confirmDiscard(context, notifier),
            icon: const Icon(Icons.delete_outline),
            label: const Text('Discard'),
            style: TextButton.styleFrom(
              foregroundColor: colorScheme.onSurfaceVariant,
            ),
          ),
        ],
      ],
    );
  }

  Future<void> _confirmDiscard(
    BuildContext context,
    TimerNotifier notifier,
  ) async {
    final confirmed = await showDialog<bool>(
      context: context,
      builder: (ctx) => AlertDialog(
        title: const Text('Discard entry?'),
        content: const Text('The current time entry will be deleted.'),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(ctx, false),
            child: const Text('Cancel'),
          ),
          FilledButton(
            onPressed: () => Navigator.pop(ctx, true),
            child: const Text('Discard'),
          ),
        ],
      ),
    );
    if (confirmed == true) await notifier.discard();
  }
}