// ignore_for_file: deprecated_member_use

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../../core/widgets/app_scaffold.dart';
import '../../../core/widgets/primary_button.dart';
import '../application/onboarding_controller.dart';

class OnboardingIntroScreen extends ConsumerWidget {
  const OnboardingIntroScreen({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final controller = ref.watch(onboardingControllerProvider.notifier);
    
    return AppScaffold(
      body: SafeArea(
        child: Padding(
          padding: const EdgeInsets.only(top: 30.0, left: 24.0, right: 24.0, bottom: 30.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              // Progress Bar and Navigation
              _OnboardingProgress(currentStep: 1, totalSteps: 3),
              const SizedBox(height: 48),
              const Icon(
                Icons.timer_outlined,
                size: 100,
                color: null,
              ),
              const SizedBox(height: 32),
              Text(
                'Welcome to 1356',
                style: Theme.of(context).textTheme.headlineLarge?.copyWith(
                  fontWeight: FontWeight.bold,
                ),
                textAlign: TextAlign.center,
              ),
              const SizedBox(height: 16),
              Text(
                'Your 1356-day journey starts here.\nCreate your bucket list and begin your countdown.',
                style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                  color: Theme.of(context).colorScheme.onSurface.withOpacity(0.8),
                  height: 1.5,
                ),
                textAlign: TextAlign.center,
              ),
              const SizedBox(height: 48),
              const _FeatureCard(
                icon: Icons.flag,
                title: 'Set Your Goals',
                description: 'Create a bucket list of 1-20 meaningful goals',
              ),
              const SizedBox(height: 16),
              const _FeatureCard(
                icon: Icons.lock_clock,
                title: 'Fixed Timeline',
                description: '1356 days to achieve everything - no extensions',
              ),
              const SizedBox(height: 16),
              const _FeatureCard(
                icon: Icons.trending_up,
                title: 'Track Progress',
                description: 'Watch yourself grow day by day',
              ),
              const Spacer(),
              Row(
                children: [
                  Expanded(
                    child: TextButton(
                      onPressed: () async {
                        await controller.skipOnboarding();
                        if (context.mounted) {
                          context.push('/home');
                        }
                      },
                      child: const Text('Skip'),
                    ),
                  ),
                  const SizedBox(width: 16),
                  Expanded(
                    flex: 2,
                    child: PrimaryButton(
                      onPressed: () {
                        controller.completeStep('intro');
                        context.push('/onboarding/how-it-works');
                      },
                      text: 'Get Started',
                    ),
                  ),
                ],
              ),
              const SizedBox(height: 16),
            ],
          ),
        ),
      ),
    );
  }
}

class _FeatureCard extends StatelessWidget {
  final IconData icon;
  final String title;
  final String description;

  const _FeatureCard({
    required this.icon,
    required this.title,
    required this.description,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: Theme.of(context).colorScheme.primaryContainer.withOpacity(0.3),
        borderRadius: BorderRadius.circular(12),
        border: Border.all(
          color: Theme.of(context).colorScheme.primary.withOpacity(0.2),
        ),
      ),
      child: Row(
        children: [
          Icon(
            icon,
            color: Theme.of(context).colorScheme.primary,
            size: 32,
          ),
          const SizedBox(width: 16),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  title,
                  style: Theme.of(context).textTheme.titleMedium?.copyWith(
                    fontWeight: FontWeight.bold,
                  ),
                ),
                const SizedBox(height: 4),
                Text(
                  description,
                  style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                    color: Theme.of(context).colorScheme.onSurface.withOpacity(0.7),
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

class _OnboardingProgress extends StatelessWidget {
  final int currentStep;
  final int totalSteps;

  const _OnboardingProgress({
    required this.currentStep,
    required this.totalSteps,
  });

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            Text(
              'Step $currentStep of $totalSteps',
              style: Theme.of(context).textTheme.bodySmall?.copyWith(
                color: Theme.of(context).colorScheme.onSurface.withOpacity(0.6),
              ),
            ),
            TextButton(
              onPressed: () => context.pop(),
              child: const Text('Back'),
            ),
          ],
        ),
        const SizedBox(height: 12),
        LinearProgressIndicator(
          value: currentStep / totalSteps,
          backgroundColor: Theme.of(context).colorScheme.primaryContainer.withOpacity(0.3),
          valueColor: AlwaysStoppedAnimation<Color>(
            Theme.of(context).colorScheme.primary,
          ),
        ),
      ],
    );
  }
}