import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:nhance_partner/presentation/providers/userRoleProvider.dart';
import 'package:nhance_partner/presentation/screens/UserManagement/SalesExecutive/salesExecutive.dart';

import '../../../../core/routing/routes.dart';
import '../../../../core/services/api_service.dart';
import '../../../../data/utils/Pagination.dart';
import '../../../layouts/main_layout.dart';
import '../../../layouts/responsive_layout.dart';
import '../../../providers/manager_provider.dart';
import '../../../themes/indicators/export_btn.dart';
import '../../../themes/indicators/filter_btn.dart';
import '../../../themes/indicators/search_field_theme.dart';
import '../../../themes/indicators/text_field_theme.dart';
import '../../../widgets/custom_action_popup.dart';

class SalesExecutiveList extends ConsumerStatefulWidget {
  const SalesExecutiveList({super.key});
  @override
  ConsumerState<SalesExecutiveList> createState() => SalesExecutiveListState();
}

class SalesExecutiveListState extends ConsumerState<SalesExecutiveList> {
  int currentPage = 1;
  int itemsPerPage = 10;
  late ApiService apiService;
  dynamic managerId;
  dynamic role;
  dynamic prefid;
  // List<Map<String, dynamic>> dataVal = [];
  List<Map<String, dynamic>> getStaffData = [];
  List<Map<String, dynamic>> originalData = [];
  List<Map<String, dynamic>> filteredData = [];
  bool isLoading = false;

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

    apiService = ApiService();

    Future.microtask(() {
      final data1 = ref.read(managerIdProvider);
      // final data2 = ref.read(handlerIdProvider);
      print("Edata1 => mId: $data1 -2 :");
      prefid = data1;
      role = ref.read(userRoleProvider);
      print("E43 => mId: $prefid");
      if (prefid != null && role != null) {
        getSalesExecutiveList(prefid, role);
      }
    });
    // getSalesExecutiveList();
  }

  void refresh() {
    if (prefid != null && role != null) {
      getSalesExecutiveList(prefid, role);
    }
  }

  List<dynamic> get _paginatedData {
    // Sort descending by id first
    final sortedData = [...filteredData]
      ..sort((a, b) => int.parse(b['id']) - int.parse(a['id']));

    if (sortedData.isEmpty) return [];

    // Ensure currentPage is valid
    final maxPage = (sortedData.length / itemsPerPage).ceil();
    final safePage = currentPage.clamp(1, maxPage);

    final startIndex = (safePage - 1) * itemsPerPage;
    final endIndex = (startIndex + itemsPerPage).clamp(0, sortedData.length);

    return sortedData.sublist(startIndex, endIndex);
  }

  void filterData(String query) {
    setState(() {
      final q = query.toLowerCase();

      if (q.isEmpty) {
        filteredData = getStaffData;
        return;
      }

      filteredData = getStaffData.where((item) {
        final isActiveStatus = item['is_active'] == "1" ? "active" : "inactive";

        return (item['name'] ?? '').toString().toLowerCase().contains(q) ||
            (item['email'] ?? '').toString().toLowerCase().contains(q) ||
            (item['mobile'] ?? '').toString().toLowerCase().contains(q) ||
            (item['address'] ?? '').toString().toLowerCase().contains(q) ||
            (item['emp_id'] ?? item['agent_code'] ?? '')
                .toString()
                .toLowerCase()
                .contains(q) ||
            isActiveStatus.contains(q);
      }).toList();
    });
  }

  final TextEditingController _searchStaffController = TextEditingController();

  Future<void> getSalesExecutiveList(int id, role) async {
    print('E104 => Fns called => $id');
    print('E104 => Fns role => $role');
    setState(() {
      isLoading = true;
    });

    try {
      final response = await apiService.fetchSalesExecutiveList(id, role);

      if (response['status'] == 'success') {
        print('E113 => getSalesExecutiveListData => ${response['data']}');
        setState(() {
          getStaffData = List<Map<String, dynamic>>.from(response['data']);
          originalData = getStaffData;
          filteredData = List.from(originalData);
          // print('originalData - $getClaimPolicies');
        });
      } else {
        getStaffData = [];
        originalData = [];
      }
    } catch (e) {
      print('Exception occurred: $e');
    } finally {
      setState(() {
        isLoading = false;
      });
    }
  }

  Future<void> showSalesExecutive({required String id}) {
    print('showSalesEXEC : $id');
    return showDialog(
      context: context,
      builder: (ctx) => SalesExecutive(
        id: id,
        onSubmit: (value) {
          debugPrint("New onSubmit: $value");
          refresh();
        },
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    managerId = ref.watch(managerIdProvider);

    return SelectionArea(
        child:MainLayout(
      title: "Sales Executive",
      body: Container(
        // padding: EdgeInsets.all(8.0),
        // margin: EdgeInsets.all(10.0),

        // color: Colors.yellow.shade50,
        width: MediaQuery.of(context).size.width,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          mainAxisAlignment: MainAxisAlignment.start,
          children: [
            Expanded(
              child: Container(
                // color: Colors.green,
                // color: Colors.green.shade50,
                width: MediaQuery.of(context).size.width,
                // margin: EdgeInsets.all(10.0),
                decoration: BoxDecoration(
                  // color: Colors.white,
                  borderRadius: BorderRadius.circular(15.0),
                ),

                padding: EdgeInsets.all(8.0),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Container(
                      // height: 40,
                      // color: Colors.pink,
                      child: Row(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        mainAxisAlignment: MainAxisAlignment.start,
                        children: [
                          Text(
                            'Sales Executive',
                            style: GoogleFonts.poppins(
                              fontSize: 14,
                              fontWeight: FontWeight.w500,
                            ),
                          ),
                          Spacer(),
                          ThemedSearchField(
                            hintText: 'Search',
                            // backgroundColor: Color(0xFFF6F8F8),
                            backgroundColor: Color(0xFFFFFFFF),
                            txtHeight: 30,
                            onChanged: filterData,
                            controller: _searchStaffController,
                            txtwidth: MediaQuery.of(context).size.width * 0.15,
                          ),

                          SizedBox(width: 10),
                          ExportBtn(
                            sheetName: "SalesExecutive",
                            fileName: "salesExecutive_list",
                            txt: !ResponsiveLayout.isMobile(context)
                                ? true
                                : false,
                            data: filteredData,
                            displayHeaders: [
                              'S.No.',
                              'Staff Name',
                              'Email',
                              'Phone Number',
                              'Address',
                              'Status',
                            ],
                            keys: [
                              "sno", // handled internally as i + 1
                              "name",
                              "email",
                              "mobile",
                              "address",
                              "is_active",
                            ],
                          ),

                          SizedBox(width: 10),
                          InkWell(
                            onTap: () {
                              showSalesExecutive(id: 'create');
                              // context.go('/salesExecutive/create');
                            },
                            child: Container(
                              padding: EdgeInsets.all(4.8),
                              decoration: BoxDecoration(
                                color: const Color(0xFF2E7D6E),
                                borderRadius: BorderRadius.circular(8.0),
                              ),
                              child: Row(
                                mainAxisSize: MainAxisSize.min,
                                children: [
                                  Tooltip(
                                    message: 'Create Sales Executive',
                                    child: Icon(
                                      Icons.add,
                                      color: Colors.white,
                                      size: 18,
                                    ),
                                  ),
                                ],
                              ),
                            ),
                          ),
                        ],
                      ),
                    ),
                    SizedBox(height: 5),
                    Container(
                      decoration: BoxDecoration(
                        color: Color(0xFFF1F5F9),

                        // color: Color(0xFFEDF6F5),
                        borderRadius: BorderRadius.circular(6),
                      ),
                      padding: const EdgeInsets.symmetric(
                        vertical: 10,
                        horizontal: 16,
                      ),
                      child: Row(
                        children: [
                          Expanded(
                            flex: 1,
                            child: Text('S.No.', style: _headerStyle),
                          ),
                          Expanded(
                            flex: 2,
                            child: Text('Executive Name', style: _headerStyle),
                          ),

                          Expanded(
                            flex: 3,
                            child: Text('Email', style: _headerStyle),
                          ),
                          Expanded(
                            flex: 2,
                            child: Text('Phone Number', style: _headerStyle),
                          ),

                          Expanded(
                            flex: 1,
                            child: Text('Status', style: _headerStyle),
                          ),
                          Expanded(
                            flex: 1,
                            child: Text('Action', style: _headerStyle),
                          ),
                        ],
                      ),
                    ),
                    Expanded(child: _buildDataTable(context)),
                  ],
                ),
              ),
            ),

            Container(
              // height: 20,
              width: MediaQuery.of(context).size.width,
              // color: Colors.green.shade50,
              child: PaginationControls(
                currentPage: currentPage,
                itemsPerPage: itemsPerPage,
                // totalItems: dataVal.length,
                totalItems: filteredData.length,
                // activeColor: layoutColor, // your theme color
                onPageChanged: (page) {
                  setState(() {
                    currentPage = page;
                  });
                },
                onItemsPerPageChanged: (items) {
                  setState(() {
                    itemsPerPage = items;
                    currentPage = 1;
                  });
                },
              ),
            ),
          ],
        ),
      ),
    ),);
  }

  Widget _buildDataTable(BuildContext context) {
    if (filteredData.isEmpty) {
      return const SizedBox(
        height: 50,
        child: Center(child: Text('No available data')),
      );
    }

    final sortedData = [..._paginatedData];

    return ListView.builder(
      // itemCount: filteredData.length + 1, // +1 for header, +1 for pagination
      itemCount: sortedData.length + 1, // +1 for header, +1 for pagination
      itemBuilder: (context, index) {
        if (index == 0) return _buildHeader();
        // if (index == dataVal.length + 1)
        //   return _buildPagination(context);
        final startIndex = ((currentPage - 1) * itemsPerPage);
        // final item = filteredData[index - 1];
        final item = sortedData[index - 1];
        final sno = startIndex + index;
        return _buildDataRow(item, sno);
      },
    );
  }

  Widget _buildHeader() {
    return SizedBox.shrink();
  }

  Widget _buildDataRow(Map<String, dynamic> item, sno) {
    return Container(
      padding: const EdgeInsets.symmetric(vertical: 1, horizontal: 16),
      // margin: const EdgeInsets.only(top: 10),
      decoration: BoxDecoration(
        color: Colors.white,
        // color: Color(0xFFE0F7F9),
        border: const Border(
          bottom: BorderSide(color: Colors.blueGrey, width: 0.15),
        ),
        // borderRadius: BorderRadius.circular(8),
      ),
      child: Row(
        children: [
          Expanded(flex: 1, child: Text('$sno' ?? '-', style: _dataBold)),
          Expanded(flex: 2, child: Text(item['name'] ?? '-', style: _dataBold)),
          Expanded(
            flex: 3,
            child: Text(item['email'] ?? '-', style: _dataBold),
          ),
          Expanded(
            flex: 2,
            child: Text(item['mobile'] ?? '-', style: _dataBold),
          ),

          Expanded(
            flex: 1,
            child: Row(
              children: [
                Container(
                  // color: Colors.yellow.shade50,
                  child: Transform.scale(
                    scale: 0.4, // reduce size (0.7–0.9 works well)
                    child: Switch(
                      value: item['is_active'] == "1",
                      onChanged: (val) {
                        setState(() {
                          item['is_active'] = val ? "1" : "0";
                        });
                        final response = apiService.updateStatus(
                          item['id'],
                          val ? "0" : "1",
                          'salesExecutive',
                        );
                        print("Response - $response");
                      },
                      activeColor: Color(0xFF2E7D6E), // thumb when active
                      activeTrackColor: Color(0xFFDCFCE7), // track when active
                      // activeColor: Color(0xFF425B5B), // thumb when active
                      // activeTrackColor: Color(0xFFB2D8D3), // track when active
                      inactiveThumbColor:
                          Colors.grey.shade400, // thumb when inactive
                      inactiveTrackColor:
                          Colors.grey.shade300, // track when inactive
                    ),
                  ),
                ),
              ],
            ),
          ),

          Expanded(
            flex: 1,
            child: item['is_active'] == "1"
                ? Row(
                    children: [
                      Tooltip(
                        message: 'Edit',
                        child: IconButton(
                          icon: Image.asset(
                            "assets/miscellaneous/Edit.png",
                            height: 12,
                            width: 15,
                          ),
                          onPressed: () {
                            print('EDITStaff - ${item['id']}');
                            dynamic id = item['id'];
                            // context.go('/salesExecutive/$id');

                            showSalesExecutive(id: id);
                          },
                          splashRadius: 28,
                          hoverColor: Colors.black12,
                          padding: const EdgeInsets.all(8),
                          constraints: const BoxConstraints(),
                        ),
                      ),
                    ],
                  )
                : Row(
                    children: [
                      Image.asset(
                        "assets/miscellaneous/Edit_muted.png",
                        height: 12,
                        width: 15,
                      ),
                    ],
                  ),
          ),
        ],
      ),
    );
  }

  static final _dataBold = GoogleFonts.inter(
    fontSize: 12,

    fontWeight: FontWeight.w400,
    color: Color(0xFF000000),
  );

  static final _dataSub = GoogleFonts.inter(
    fontSize: 10,
    fontWeight: FontWeight.w300,
    color: Color(0xFF585757),
  );

  static final _headerStyle = GoogleFonts.poppins(
    fontSize: 11.2,
    fontWeight: FontWeight.w500,
    color: Color(0xFF1E293B),
  );
}