import 'dart:developer';

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:enaklo_pos/core/components/custom_date_picker.dart';
import 'package:enaklo_pos/core/constants/colors.dart';
import 'package:enaklo_pos/core/extensions/date_time_ext.dart';
import 'package:enaklo_pos/core/utils/date_formatter.dart';
import 'package:enaklo_pos/presentation/report/blocs/item_sales_report/item_sales_report_bloc.dart';
import 'package:enaklo_pos/presentation/report/blocs/payment_method_report/payment_method_report_bloc.dart';
import 'package:enaklo_pos/presentation/report/blocs/product_sales/product_sales_bloc.dart';
import 'package:enaklo_pos/presentation/report/blocs/summary/summary_bloc.dart';
import 'package:enaklo_pos/presentation/report/blocs/transaction_report/transaction_report_bloc.dart';
import 'package:enaklo_pos/presentation/report/widgets/item_sales_report_widget.dart';
import 'package:enaklo_pos/presentation/report/widgets/payment_method_report_widget.dart';
import 'package:enaklo_pos/presentation/report/widgets/product_sales_chart_widget.dart';
import 'package:enaklo_pos/presentation/report/widgets/report_menu.dart';
import 'package:enaklo_pos/presentation/report/widgets/report_title.dart';
import 'package:flutter/material.dart';
import 'package:enaklo_pos/presentation/report/widgets/summary_report_widget.dart';
import 'package:enaklo_pos/presentation/report/widgets/transaction_report_widget.dart';

import '../../../core/components/spaces.dart';

class ReportPage extends StatefulWidget {
  const ReportPage({super.key});

  @override
  State<ReportPage> createState() => _ReportPageState();
}

class _ReportPageState extends State<ReportPage> {
  int selectedMenu = 0;
  String title = 'Transaction Report';
  DateTime fromDate = DateTime.now().subtract(const Duration(days: 30));
  DateTime toDate = DateTime.now();

  @override
  void initState() {
    super.initState();
    context.read<TransactionReportBloc>().add(
          TransactionReportEvent.getReport(
              startDate: DateFormatter.formatDateTime(fromDate),
              endDate: DateFormatter.formatDateTime(toDate)),
        );
  }

  @override
  Widget build(BuildContext context) {
    String searchDateFormatted =
        '${fromDate.toFormattedDate2()} to ${toDate.toFormattedDate2()}';
    return Scaffold(
      backgroundColor: AppColors.background,
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          ReportTitle(
            actionWidget: [
              SizedBox(
                width: 300,
                child: CustomDatePicker(
                  prefix: const Text('From: '),
                  initialDate: fromDate,
                  onDateSelected: (selectedDate) {
                    fromDate = selectedDate;

                    setState(() {});
                  },
                ),
              ),
              const SpaceWidth(24.0),
              SizedBox(
                width: 300,
                child: CustomDatePicker(
                  prefix: const Text('To: '),
                  initialDate: toDate,
                  onDateSelected: (selectedDate) {
                    toDate = selectedDate;
                    setState(() {});
                    // context.read<TransactionReportBloc>().add(
                    //       TransactionReportEvent.getReport(
                    //           startDate:
                    //               DateFormatter.formatDateTime(
                    //                   fromDate),
                    //           endDate: DateFormatter.formatDateTime(
                    //               toDate)),
                    //     );
                    // context.read<ItemSalesReportBloc>().add(
                    //       ItemSalesReportEvent.getItemSales(
                    //           startDate:
                    //               DateFormatter.formatDateTime(
                    //                   fromDate),
                    //           endDate: DateFormatter.formatDateTime(
                    //               toDate)),
                    //     );
                  },
                ),
              ),
            ],
          ),
          Expanded(
            child: Row(
              children: [
                // LEFT CONTENT
                Expanded(
                  flex: 2,
                  child: Material(
                    color: AppColors.white,
                    child: Align(
                      alignment: Alignment.topLeft,
                      child: SingleChildScrollView(
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            ReportMenu(
                              label: 'Laporan Transaksi',
                              subtitle:
                                  'Menampilkan riwayat lengkap semua transaksi yang telah dilakukan.',
                              icon: Icons.receipt_long_outlined,
                              onPressed: () {
                                selectedMenu = 0;
                                title = 'Laporan Transaksi';
                                setState(() {});
                                //enddate is 1 month before the current date
                                context.read<TransactionReportBloc>().add(
                                      TransactionReportEvent.getReport(
                                          startDate:
                                              DateFormatter.formatDateTime(
                                                  fromDate),
                                          endDate: DateFormatter.formatDateTime(
                                              toDate)),
                                    );
                              },
                              isActive: selectedMenu == 0,
                            ),
                            ReportMenu(
                              label: 'Laporan Penjualan Item',
                              subtitle:
                                  'Laporan penjualan berdasarkan masing-masing item atau produk.',
                              icon: Icons.inventory_2_outlined,
                              onPressed: () {
                                selectedMenu = 1;
                                title = 'Laporan Penjualan Item';
                                setState(() {});
                                context.read<ItemSalesReportBloc>().add(
                                      ItemSalesReportEvent.getItemSales(
                                          startDate:
                                              DateFormatter.formatDateTime(
                                                  fromDate),
                                          endDate: DateFormatter.formatDateTime(
                                              toDate)),
                                    );
                              },
                              isActive: selectedMenu == 1,
                            ),
                            ReportMenu(
                              label: 'Chart Penjualan Produk',
                              subtitle:
                                  'Grafik visual penjualan produk untuk analisa performa penjualan.',
                              icon: Icons.bar_chart_outlined,
                              onPressed: () {
                                selectedMenu = 2;
                                title = 'Chart Penjualan Produk';
                                setState(() {});
                                context.read<ProductSalesBloc>().add(
                                      ProductSalesEvent.getProductSales(
                                          DateFormatter.formatDateTime(
                                              fromDate),
                                          DateFormatter.formatDateTime(toDate)),
                                    );
                              },
                              isActive: selectedMenu == 2,
                            ),
                            ReportMenu(
                              label: 'Ringkasan Laporan Penjualan',
                              subtitle:
                                  'Ringkasan total penjualan dalam periode tertentu.',
                              icon: Icons.insert_drive_file_outlined,
                              onPressed: () {
                                selectedMenu = 3;
                                title = 'Ringkasan Laporan Penjualan';
                                setState(() {});
                                context.read<SummaryBloc>().add(
                                      SummaryEvent.getSummary(
                                          DateFormatter.formatDateTime(
                                              fromDate),
                                          DateFormatter.formatDateTime(toDate)),
                                    );

                                log("Date ${DateFormatter.formatDateTime(fromDate)}");
                              },
                              isActive: selectedMenu == 3,
                            ),
                            ReportMenu(
                              label: 'Laporan Metode Pembayaran',
                              subtitle:
                                  'Laporan metode pembayaran yang digunakan.',
                              icon: Icons.payment_outlined,
                              onPressed: () {
                                selectedMenu = 4;
                                title = 'Laporan Metode Pembayaran';
                                setState(() {});
                                context.read<PaymentMethodReportBloc>().add(
                                      PaymentMethodReportEvent
                                          .getPaymentMethodReport(
                                              startDate:
                                                  DateFormatter.formatDateTime(
                                                      fromDate),
                                              endDate:
                                                  DateFormatter.formatDateTime(
                                                      toDate)),
                                    );
                              },
                              isActive: selectedMenu == 4,
                            ),
                          ],
                        ),
                      ),
                    ),
                  ),
                ),

                // RIGHT CONTENT
                Expanded(
                    flex: 4,
                    child: selectedMenu == 0
                        ? BlocBuilder<TransactionReportBloc,
                            TransactionReportState>(
                            builder: (context, state) {
                              return state.maybeWhen(
                                orElse: () => const Center(
                                  child: CircularProgressIndicator(),
                                ),
                                error: (message) {
                                  return Text(message);
                                },
                                loaded: (transactionReport) {
                                  return TransactionReportWidget(
                                    transactionReport: transactionReport,
                                    title: title,
                                    searchDateFormatted: searchDateFormatted,
                                    headerWidgets: _getTitleReportPageWidget(),
                                  );
                                },
                              );
                            },
                          )
                        : selectedMenu == 1
                            ? BlocBuilder<ItemSalesReportBloc,
                                ItemSalesReportState>(
                                builder: (context, state) {
                                  return state.maybeWhen(
                                    orElse: () => const Center(
                                      child: CircularProgressIndicator(),
                                    ),
                                    error: (message) {
                                      return Text(message);
                                    },
                                    loaded: (itemSales) {
                                      return ItemSalesReportWidget(
                                        itemSales: itemSales,
                                        title: title,
                                        searchDateFormatted:
                                            searchDateFormatted,
                                        headerWidgets:
                                            _getItemSalesPageWidget(),
                                      );
                                    },
                                  );
                                },
                              )
                            : selectedMenu == 2
                                ? BlocBuilder<ProductSalesBloc,
                                    ProductSalesState>(
                                    builder: (context, state) {
                                      return state.maybeWhen(
                                        orElse: () => const Center(
                                          child: CircularProgressIndicator(),
                                        ),
                                        error: (message) {
                                          return Text(message);
                                        },
                                        success: (productSales) {
                                          return ProductSalesChartWidgets(
                                            title: title,
                                            searchDateFormatted:
                                                searchDateFormatted,
                                            productSales: productSales,
                                          );
                                        },
                                      );
                                    },
                                  )
                                : selectedMenu == 3
                                    ? BlocBuilder<SummaryBloc, SummaryState>(
                                        builder: (context, state) {
                                          return state.maybeWhen(
                                            orElse: () => const Center(
                                              child:
                                                  CircularProgressIndicator(),
                                            ),
                                            error: (message) {
                                              return Text(message);
                                            },
                                            success: (summary) {
                                              return SummaryReportWidget(
                                                summary: summary,
                                                title: title,
                                                searchDateFormatted:
                                                    searchDateFormatted,
                                              );
                                            },
                                          );
                                        },
                                      )
                                    : selectedMenu == 4
                                        ? BlocBuilder<PaymentMethodReportBloc,
                                            PaymentMethodReportState>(
                                            builder: (context, state) {
                                              return state.maybeWhen(
                                                orElse: () => const Center(
                                                  child:
                                                      CircularProgressIndicator(),
                                                ),
                                                error: (message) {
                                                  return Text(message);
                                                },
                                                loaded: (paymentMethodData) {
                                                  return PaymentMethodReportWidget(
                                                    paymentMethodData:
                                                        paymentMethodData,
                                                    title: title,
                                                    searchDateFormatted:
                                                        searchDateFormatted,
                                                    headerWidgets:
                                                        _getPaymentMethodPageWidget(),
                                                  );
                                                },
                                              );
                                            },
                                          )
                                        : const SizedBox.shrink()),
              ],
            ),
          ),
        ],
      ),
    );
  }

  List<Widget> _getTitleReportPageWidget() {
    return [
      _getTitleItemWidget('ID', 120),
      _getTitleItemWidget('Total', 100),
      _getTitleItemWidget('Sub Total', 100),
      _getTitleItemWidget('Tax', 100),
      _getTitleItemWidget('Disocunt', 100),
      _getTitleItemWidget('Service', 100),
      _getTitleItemWidget('Total Item', 100),
      _getTitleItemWidget('Cashier', 180),
      _getTitleItemWidget('Time', 200),
    ];
  }

  List<Widget> _getItemSalesPageWidget() {
    return [
      _getTitleItemWidget('ID', 80),
      _getTitleItemWidget('Order', 100),
      _getTitleItemWidget('Product', 200),
      _getTitleItemWidget('Qty', 60),
      _getTitleItemWidget('Price', 150),
      _getTitleItemWidget('Total Price', 160),
    ];
  }

  List<Widget> _getPaymentMethodPageWidget() {
    return [
      _getTitleItemWidget('Payment Method', 180),
      _getTitleItemWidget('Total Amount', 180),
      _getTitleItemWidget('Transaction Count', 180),
    ];
  }

  Widget _getTitleItemWidget(String label, double width) {
    return Container(
      width: width,
      height: 56,
      color: AppColors.primary,
      alignment: Alignment.centerLeft,
      child: Center(
        child: Text(
          label,
          style: TextStyle(
            color: Colors.white,
          ),
        ),
      ),
    );
  }
}