import 'package:auto_route/auto_route.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';

import '../../../application/auth/auth_bloc.dart';
import '../../../common/theme/theme.dart';
import '../../components/assets/assets.gen.dart';
import '../../router/app_router.gr.dart';

@RoutePage()
class SplashPage extends StatefulWidget {
  const SplashPage({super.key});

  @override
  State<SplashPage> createState() => _SplashPageState();
}

class _SplashPageState extends State<SplashPage> with TickerProviderStateMixin {
  late AnimationController _logoController;
  late AnimationController _taglineController;
  late AnimationController _poweredByController;

  late Animation<double> _logoFadeAnimation;
  late Animation<double> _logoScaleAnimation;
  late Animation<double> _taglineFadeAnimation;
  late Animation<Offset> _taglineSlideAnimation;
  late Animation<double> _poweredByFadeAnimation;

  @override
  void initState() {
    super.initState();

    _logoController = AnimationController(
      duration: const Duration(milliseconds: 1000),
      vsync: this,
    );

    _taglineController = AnimationController(
      duration: const Duration(milliseconds: 800),
      vsync: this,
    );

    _poweredByController = AnimationController(
      duration: const Duration(milliseconds: 600),
      vsync: this,
    );

    _logoFadeAnimation = Tween<double>(
      begin: 0.0,
      end: 1.0,
    ).animate(CurvedAnimation(parent: _logoController, curve: Curves.easeOut));

    _logoScaleAnimation = Tween<double>(begin: 0.8, end: 1.0).animate(
      CurvedAnimation(parent: _logoController, curve: Curves.easeOutBack),
    );

    _taglineFadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(parent: _taglineController, curve: Curves.easeOut),
    );

    _taglineSlideAnimation =
        Tween<Offset>(begin: const Offset(0, 0.3), end: Offset.zero).animate(
          CurvedAnimation(parent: _taglineController, curve: Curves.easeOut),
        );

    _poweredByFadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(parent: _poweredByController, curve: Curves.easeIn),
    );

    _startAnimations();
  }

  void _startAnimations() async {
    await Future.delayed(const Duration(milliseconds: 300));
    if (mounted) _logoController.forward();

    await Future.delayed(const Duration(milliseconds: 600));
    if (mounted) _taglineController.forward();

    await Future.delayed(const Duration(milliseconds: 400));
    if (mounted) _poweredByController.forward();

    await Future.delayed(const Duration(milliseconds: 1500));
    if (mounted) {
      context.read<AuthBloc>().add(const AuthEvent.fetchCurrentUser());
    }
  }

  @override
  void dispose() {
    _logoController.dispose();
    _taglineController.dispose();
    _poweredByController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return BlocListener<AuthBloc, AuthState>(
      listenWhen: (previous, current) => previous.status != current.status,
      listener: (context, state) {
        if (state.isAuthenticated) {
          context.router.replace(const MainRoute());
        } else {
          context.router.replace(const LoginRoute());
        }
      },
      child: Scaffold(
        body: Container(
          width: double.infinity,
          height: double.infinity,
          decoration: const BoxDecoration(
            gradient: LinearGradient(
              begin: Alignment.topCenter,
              end: Alignment.bottomCenter,
              colors: [Color(0xFFE81E1E), Color(0xFFC40202)],
            ),
          ),
          child: SafeArea(
            child: Column(
              children: [
                // Main content - Logo & Tagline di tengah
                Expanded(
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: [
                      // Logo
                      AnimatedBuilder(
                        animation: _logoController,
                        builder: (context, child) {
                          return Opacity(
                            opacity: _logoFadeAnimation.value.clamp(0.0, 1.0),
                            child: Transform.scale(
                              scale: _logoScaleAnimation.value,
                              child: child,
                            ),
                          );
                        },
                        child: SizedBox(
                          width: 180,
                          child: Assets.images.logo.image(fit: BoxFit.contain),
                        ),
                      ),
                      const SizedBox(height: 32),

                      // Tagline
                      SlideTransition(
                        position: _taglineSlideAnimation,
                        child: FadeTransition(
                          opacity: _taglineFadeAnimation,
                          child: Text(
                            'Pantau kondisi bisnismu, dari genggaman',
                            style: AppStyle.lg.copyWith(
                              color: AppColor.white.withOpacity(0.9),
                              fontWeight: FontWeight.w400,
                              letterSpacing: 0.3,
                            ),
                            textAlign: TextAlign.center,
                          ),
                        ),
                      ),
                    ],
                  ),
                ),

                // Powered by di bawah
                FadeTransition(
                  opacity: _poweredByFadeAnimation,
                  child: Padding(
                    padding: const EdgeInsets.only(bottom: 24),
                    child: RichText(
                      textAlign: TextAlign.center,
                      text: TextSpan(
                        style: AppStyle.sm.copyWith(
                          color: AppColor.white.withOpacity(0.7),
                        ),
                        children: [
                          const TextSpan(text: 'powered by '),
                          TextSpan(
                            text: 'PT Selalu Ada Keberuntungan',
                            style: AppStyle.sm.copyWith(
                              color: AppColor.white,
                              fontWeight: FontWeight.w700,
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}