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

import '../../../application/analytic/category_analytic_loader/category_analytic_loader_bloc.dart';
import '../../../application/analytic/payment_method_analytic_loader/payment_method_analytic_loader_bloc.dart';
import '../../../application/analytic/product_analytic_loader/product_analytic_loader_bloc.dart';
import '../../../application/analytic/sales_loader/sales_loader_bloc.dart';
import '../../../common/theme/theme.dart';
import '../../../injection.dart';
import '../../components/spacer/spacer.dart';
import 'widgets/sales_category_card.dart';
import 'widgets/sales_header.dart';
import 'widgets/sales_payment_method_card.dart';
import 'widgets/sales_rincian_card.dart';
import 'widgets/sales_top_products_card.dart';

@RoutePage()
class SalesPage extends StatefulWidget implements AutoRouteWrapper {
  const SalesPage({super.key});

  @override
  State<SalesPage> createState() => _SalesPageState();

  @override
  Widget wrappedRoute(BuildContext context) => MultiBlocProvider(
    providers: [
      BlocProvider(
        create: (context) =>
            getIt<SalesLoaderBloc>()..add(SalesLoaderEvent.fectched()),
      ),
      BlocProvider(
        create: (context) =>
            getIt<PaymentMethodAnalyticLoaderBloc>()
              ..add(const PaymentMethodAnalyticLoaderEvent.fetched()),
      ),
      BlocProvider(
        create: (context) =>
            getIt<CategoryAnalyticLoaderBloc>()
              ..add(const CategoryAnalyticLoaderEvent.fetched()),
      ),
      BlocProvider(
        create: (context) =>
            getIt<ProductAnalyticLoaderBloc>()
              ..add(const ProductAnalyticLoaderEvent.fetched()),
      ),
    ],
    child: this,
  );
}

class _SalesPageState extends State<SalesPage>
    with SingleTickerProviderStateMixin {
  late AnimationController _fadeController;
  late Animation<double> _fadeAnimation;

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

    _fadeController = AnimationController(
      duration: const Duration(milliseconds: 600),
      vsync: this,
    );
    _fadeAnimation = CurvedAnimation(
      parent: _fadeController,
      curve: Curves.easeOut,
    );

    Future.delayed(const Duration(milliseconds: 300), () {
      _fadeController.forward();
    });
  }

  @override
  void dispose() {
    _fadeController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: AppColor.background,
      body: BlocBuilder<SalesLoaderBloc, SalesLoaderState>(
        builder: (context, salesState) {
          return CustomScrollView(
            slivers: [
              // Header
              SliverToBoxAdapter(
                child: SalesHeader(
                  state: salesState,
                  onDateRangeChanged: (startDate, endDate) {
                    _onDateRangeChanged(context, startDate, endDate);
                  },
                ),
              ),

              // Rincian Penjualan
              SliverToBoxAdapter(
                child: FadeTransition(
                  opacity: _fadeAnimation,
                  child: Padding(
                    padding: const EdgeInsets.all(16),
                    child: SalesRincianCard(state: salesState),
                  ),
                ),
              ),

              // Metode Pembayaran
              SliverToBoxAdapter(
                child: FadeTransition(
                  opacity: _fadeAnimation,
                  child: Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 16),
                    child:
                        BlocBuilder<
                          PaymentMethodAnalyticLoaderBloc,
                          PaymentMethodAnalyticLoaderState
                        >(
                          builder: (context, paymentState) {
                            return SalesPaymentMethodCard(
                              paymentMethodAnalytic:
                                  paymentState.paymentMethodAnalytic,
                              isFetching: paymentState.isFetching,
                            );
                          },
                        ),
                  ),
                ),
              ),

              // Penjualan per Kategori
              SliverToBoxAdapter(
                child: FadeTransition(
                  opacity: _fadeAnimation,
                  child: Padding(
                    padding: const EdgeInsets.all(16),
                    child:
                        BlocBuilder<
                          CategoryAnalyticLoaderBloc,
                          CategoryAnalyticLoaderState
                        >(
                          builder: (context, categoryState) {
                            return SalesCategoryCard(
                              categoryAnalytic: categoryState.categoryAnalytic,
                              isFetching: categoryState.isFetching,
                            );
                          },
                        ),
                  ),
                ),
              ),

              // Produk Terlaris
              SliverToBoxAdapter(
                child: FadeTransition(
                  opacity: _fadeAnimation,
                  child: Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 16),
                    child:
                        BlocBuilder<
                          ProductAnalyticLoaderBloc,
                          ProductAnalyticLoaderState
                        >(
                          builder: (context, productState) {
                            return SalesTopProductsCard(
                              productAnalytic: productState.productAnalytic,
                              isFetching: productState.isFetching,
                            );
                          },
                        ),
                  ),
                ),
              ),

              // Bottom Padding
              const SliverToBoxAdapter(child: SpaceHeight(32)),
            ],
          );
        },
      ),
    );
  }

  void _onDateRangeChanged(
    BuildContext context,
    DateTime startDate,
    DateTime endDate,
  ) {
    // Update sales
    context.read<SalesLoaderBloc>()
      ..add(SalesLoaderEvent.rangeDateChanged(startDate, endDate))
      ..add(SalesLoaderEvent.fectched());

    // Update payment method
    context.read<PaymentMethodAnalyticLoaderBloc>()
      ..add(
        PaymentMethodAnalyticLoaderEvent.rangeDateChanged(startDate, endDate),
      )
      ..add(const PaymentMethodAnalyticLoaderEvent.fetched());

    // Update category
    context.read<CategoryAnalyticLoaderBloc>()
      ..add(CategoryAnalyticLoaderEvent.rangeDateChanged(startDate, endDate))
      ..add(const CategoryAnalyticLoaderEvent.fetched());

    // Update product
    context.read<ProductAnalyticLoaderBloc>()
      ..add(ProductAnalyticLoaderEvent.rangeDateChanged(startDate, endDate))
      ..add(const ProductAnalyticLoaderEvent.fetched());
  }
}