import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:mohem_flutter_app/api/login_api_client.dart';
import 'package:mohem_flutter_app/api/offers_and_discounts_api_client.dart';
import 'package:mohem_flutter_app/app_state/app_state.dart';
import 'package:mohem_flutter_app/classes/colors.dart';
import 'package:mohem_flutter_app/classes/consts.dart';
import 'package:mohem_flutter_app/classes/utils.dart';
import 'package:mohem_flutter_app/config/routes.dart';
import 'package:mohem_flutter_app/extensions/int_extensions.dart';
import 'package:mohem_flutter_app/extensions/string_extensions.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/models/offers_and_discounts/wala_plus_category_model.dart';
import 'package:mohem_flutter_app/models/offers_and_discounts/wala_plus_retailer_model.dart';
import 'package:mohem_flutter_app/widgets/info_chip_widget.dart';
import 'package:shimmer/shimmer.dart';

class DashboardScreenForDependet extends StatefulWidget {
  const DashboardScreenForDependet({Key? key}) : super(key: key);

  @override
  State<DashboardScreenForDependet> createState() => _DashboardScreenForDependetState();
}

class _DashboardScreenForDependetState extends State<DashboardScreenForDependet> {
  List<WalaPlusRetailerModel> retailersList = [];
  List<WalaPlusRetailerModel> _filteredRetailersList = [];
  List<WalaPlusCategoryModel> categoriesList = [];
  String currentCategoryId = "";
  String selectedTypeFilter = "all";
  bool isNearestOffers = true;
  bool isLoading = true;
  bool isLoadingMore = false;
  bool isCategoriesLoading = true;
  bool hasMore = true;
  bool _isFetchingPage = false;
  int currentPage = 1;
  int totalPages = 1;
  final int pageSize = 10;
  String searchQuery = "";
  final TextEditingController _searchController = TextEditingController();
  final ScrollController _scrollController = ScrollController();
  bool _hasRegisteredMobileLoginInfo = false;

  List<String> get _availableTypeFilters {
    Set<String> types = <String>{};
    for (WalaPlusRetailerModel r in retailersList) {
      String? t = r.normalizedType;
      if (t != null && t.isNotEmpty) {
        types.add(t);
      }
    }
    List<String> list = <String>['all', 'instore', 'online'];
    for (String t in types) {
      if (!list.contains(t)) {
        list.add(t);
      }
    }
    return list;
  }

  String _getTypeFilterTitle(String type) {
    if (type == 'all') {
      return LocaleKeys.allCategories.tr();
    } else if (type == 'instore') {
      return LocaleKeys.inStore.tr();
    } else if (type == 'online') {
      return LocaleKeys.online.tr();
    }
    return type.isNotEmpty ? (type[0].toUpperCase() + type.substring(1)) : type;
  }

  IconData _getTypeFilterIcon(String type) {
    if (type == 'instore') {
      return Icons.storefront_rounded;
    } else if (type == 'online') {
      return Icons.language_rounded;
    }
    return Icons.tune_rounded;
  }

  @override
  void initState() {
    super.initState();
    _scrollController.addListener(_scrollListener);
    _loadDependentName();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      if (mounted) {
        await _registerMobileLoginInfo();
        await fetchCategories();
        await fetchOffers(categoryId: currentCategoryId.isEmpty ? "all" : currentCategoryId);
      }
    });
  }

  Future<void> _registerMobileLoginInfo() async {
    if (_hasRegisteredMobileLoginInfo) return;
    if (!ApiConsts.isDependetLogin) return;
    _hasRegisteredMobileLoginInfo = true;

    try {
      int loginType = AppState().dependentLoginType ?? 1;
      String nationalId = AppState().getUserName ?? "";
      String dob = AppState().dependentDob ?? "";
      String name = AppState().dependentName ?? "";
      String mobile = AppState().postParamsObject?.mobileNumber ?? "";
      String tokenID =
          (AppState().postParamsObject?.tokenID != null && AppState().postParamsObject!.tokenID!.isNotEmpty) ? AppState().postParamsObject!.tokenID! : (AppState().authenticationTokenID ?? "");
      if (tokenID.isEmpty) {
        tokenID = await Utils.getStringFromPrefs("P_DEP_TOKEN_ID");
      }
      int sessionId = AppState().postParamsObject?.pSessionId ?? 0;
      String email = AppState().postParamsObject?.pEmailAddress ?? "";
      String deviceToken = AppState().getIsHuawei ? AppState().getHuaweiPushToken : (AppState().getDeviceToken ?? "");

      await LoginApiClient().insertMobileLoginInfoDependent(
        loginType: loginType,
        nationalId: nationalId,
        dob: dob,
        dependentName: name,
        mobileNumber: mobile,
        tokenID: tokenID,
        sessionId: sessionId,
        email: email,
        deviceToken: deviceToken,
        context: context,
      );
    } catch (e) {
      if (kDebugMode) {
        print("Error calling insertMobileLoginInfoDependent: $e");
      }
    }
  }

  void _loadDependentName() {
    if (AppState().dependentName != null && AppState().dependentName!.isNotEmpty && mounted) {
      setState(() {});
    }
  }

  @override
  void dispose() {
    _scrollController.removeListener(_scrollListener);
    _scrollController.dispose();
    _searchController.dispose();
    super.dispose();
  }

  void _scrollListener() {
    if (!_scrollController.hasClients) return;
    double maxScroll = _scrollController.position.maxScrollExtent;
    double currentScroll = _scrollController.position.pixels;
    // Trigger only when user scrolls to within 35px of the very bottom
    if (currentScroll >= maxScroll - 35) {
      if (!isLoading && !isLoadingMore && !_isFetchingPage && hasMore) {
        fetchNextPage();
      }
    }
  }

  Future<void> fetchCategories() async {
    setState(() {
      isCategoriesLoading = true;
    });

    try {
      List<WalaPlusCategoryModel> list = await OffersAndDiscountsApiClient().getWalaPlusCategories(context: context);
      if (list.isEmpty) {
        await Future.delayed(const Duration(milliseconds: 600));
        list = await OffersAndDiscountsApiClient().getWalaPlusCategories(context: context);
      }

      if (mounted) {
        List<WalaPlusCategoryModel> fullList = [];
        bool hasAll = list.any((c) => (c.id == "all" || c.name?.toLowerCase() == "all" || c.name == "الجميع" || c.name == "الكل"));
        if (!hasAll) {
          fullList.add(WalaPlusCategoryModel(id: "all", name: LocaleKeys.allCategories.tr()));
        }
        fullList.addAll(list);

        setState(() {
          categoriesList = fullList;
          if (currentCategoryId.isEmpty) {
            currentCategoryId = "all";
          }
        });
      }
    } catch (e) {
      debugPrint("Error fetching WalaPlus categories (attempt 1): $e");
      try {
        await Future.delayed(const Duration(milliseconds: 600));
        List<WalaPlusCategoryModel> retryList = await OffersAndDiscountsApiClient().getWalaPlusCategories(context: context);
        if (mounted && retryList.isNotEmpty) {
          List<WalaPlusCategoryModel> fullList = [];
          bool hasAll = retryList.any((c) => (c.id == "all" || c.name?.toLowerCase() == "all" || c.name == "الجميع" || c.name == "الكل"));
          if (!hasAll) {
            fullList.add(WalaPlusCategoryModel(id: "all", name: LocaleKeys.allCategories.tr()));
          }
          fullList.addAll(retryList);
          setState(() {
            categoriesList = fullList;
            if (currentCategoryId.isEmpty) {
              currentCategoryId = "all";
            }
          });
          return;
        }
      } catch (retryEx) {
        debugPrint("Error fetching WalaPlus categories (attempt 2): $retryEx");
      }

      if (mounted && categoriesList.isEmpty) {
        setState(() {
          categoriesList = [WalaPlusCategoryModel(id: "all", name: LocaleKeys.allCategories.tr())];
          if (currentCategoryId.isEmpty) {
            currentCategoryId = "all";
          }
        });
      }
    } finally {
      if (mounted) {
        setState(() {
          isCategoriesLoading = false;
        });
      }
    }
  }

  Future<void> fetchOffers({String? categoryId}) async {
    String targetCategoryId = categoryId ?? (currentCategoryId.isEmpty ? "all" : currentCategoryId);

    setState(() {
      isLoading = true;
      currentPage = 1;
      hasMore = true;
    });

    try {
      String catParam = (targetCategoryId == "all" || targetCategoryId == "0") ? "" : targetCategoryId;
      print("Fetching WalaPlus retailers: category='$catParam', page=1, per_page=$pageSize");
      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: catParam,
        page: 1,
        perPage: pageSize,
        geoLocation: isNearestOffers ? "24.9485,46.977" : null,
        context: context,
      );

      retailersList = response?.retailers ?? [];
      currentPage = 1;
      totalPages = response?.pagesCount ?? 1;
      hasMore = currentPage < totalPages && (response?.retailers?.isNotEmpty ?? false);

      _runFilter(_searchController.text);
    } catch (e) {
      print("Error fetching WalaPlus retailers: $e");
      retailersList = [];
      _runFilter(_searchController.text);
    } finally {
      if (mounted) {
        setState(() {
          isLoading = false;
        });
      }
    }
  }

  Future<void> fetchNextPage() async {
    if (isLoading || isLoadingMore || _isFetchingPage || !hasMore) return;

    _isFetchingPage = true;
    setState(() {
      isLoadingMore = true;
    });

    try {
      int nextPage = currentPage + 1;
      String catParam = (currentCategoryId == "all" || currentCategoryId == "0") ? "" : currentCategoryId;

      print("Fetching WalaPlus retailers next page: $nextPage of $totalPages, category: '$catParam'");

      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: catParam,
        page: nextPage,
        perPage: pageSize,
        geoLocation: isNearestOffers ? "24.9485,46.977" : null,
        context: context,
      );

      List<WalaPlusRetailerModel> newRetailers = response?.retailers ?? [];
      if (newRetailers.isNotEmpty) {
        currentPage = nextPage;
        totalPages = response?.pagesCount ?? totalPages;
        hasMore = currentPage < totalPages;
        retailersList.addAll(newRetailers);
        _runFilter(_searchController.text);
      } else {
        hasMore = false;
      }
    } catch (e) {
      print("Error fetching next page of WalaPlus retailers: $e");
    } finally {
      _isFetchingPage = false;
      if (mounted) {
        setState(() {
          isLoadingMore = false;
        });
      }
    }
  }

  Future<void> _onRefresh() async {
    await Future.wait([fetchCategories(), fetchOffers(categoryId: currentCategoryId.isEmpty ? "all" : currentCategoryId)]);
  }

  void _runFilter([String? query]) {
    if (query != null) {
      searchQuery = query;
    }
    List<WalaPlusRetailerModel> temp = retailersList;

    if (selectedTypeFilter != "all" && selectedTypeFilter.isNotEmpty) {
      temp =
          temp.where((WalaPlusRetailerModel item) {
            String? norm = item.normalizedType;
            if (selectedTypeFilter == "online") {
              return norm == "online";
            } else if (selectedTypeFilter == "instore") {
              return norm == "instore";
            } else {
              return norm == selectedTypeFilter || (item.type?.trim().toLowerCase() == selectedTypeFilter);
            }
          }).toList();
    }

    if (searchQuery.trim().isNotEmpty) {
      String q = searchQuery.trim().toLowerCase();
      temp =
          temp.where((WalaPlusRetailerModel item) {
            String name = (item.name ?? "").toLowerCase();
            String title = (item.offerTitle ?? "").toLowerCase();
            String desc = (item.description ?? "").toLowerCase();
            String city = item.displayCity.toLowerCase();
            return name.contains(q) || title.contains(q) || desc.contains(q) || city.contains(q);
          }).toList();
    }
    _filteredRetailersList = temp;
    setState(() {});
  }

  void _openRetailer(WalaPlusRetailerModel item) {
    Navigator.pushNamed(context, AppRoutes.walaPlusRetailerDetails, arguments: item);
  }

  void _performLogout() {
    Utils.confirmDialog(
      context,
      LocaleKeys.areYouSureWantToLogOut.tr(),
      onTap: () {
        ApiConsts.selectedMemberType = MemberType.employee;
        ApiConsts.ISDependetLogin = false;
        AppState().setPostParamsInitConfig();
        Navigator.pushNamedAndRemoveUntil(context, AppRoutes.login, (Route<dynamic> route) => false);
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    bool isAr = AppState().isArabic(context);

    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBar(
        backgroundColor: Colors.white,
        elevation: 0,
        surfaceTintColor: Colors.transparent,
        automaticallyImplyLeading: false,
        titleSpacing: 0,
        title: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Row(
                children: [
                  InkWell(
                    borderRadius: BorderRadius.circular(10),
                    onTap: () {
                      if (Navigator.canPop(context)) {
                        Navigator.pop(context);
                      } else {
                        _performLogout();
                      }
                    },
                    child: Padding(
                      padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 8),
                      child: Icon(isAr ? Icons.arrow_forward_ios_rounded : Icons.arrow_back_ios_new_rounded, size: 20, color: const Color(0xFF1E293B)),
                    ),
                  ),
                  const SizedBox(width: 8),
                  SvgPicture.asset("assets/icons/mazaya_brand.svg", height: 48, fit: BoxFit.contain),
                ],
              ),
              Row(
                mainAxisSize: MainAxisSize.min,
                children: [
                  if (!ApiConsts.isDependetLogin) ...[
                    IconButton(
                      icon: Image.asset(
                        'assets/icons/ic_add_dependents.png',
                        width: 24,
                        height: 24,
                        color: const Color(0xFF1E293B),
                        errorBuilder:
                            (context, error, stackTrace) =>
                                SvgPicture.asset('assets/icons/ic_dependents_top.svg', width: 24, height: 24, colorFilter: const ColorFilter.mode(Color(0xFF1E293B), BlendMode.srcIn)),
                      ),
                      tooltip: LocaleKeys.addDependents.tr(),
                      onPressed: () {
                        Navigator.pushNamed(context, AppRoutes.familyMembers, arguments: {'fromMazaya': true});
                      },
                    ),
                  ],
                  IconButton(
                    icon: const Icon(Icons.home_rounded, size: 26, color: Color(0xFF1E293B)),
                    onPressed: () {
                      if (ApiConsts.isDependetLogin) {
                        _onRefresh();
                      } else {
                        Navigator.popUntil(context, ModalRoute.withName(AppRoutes.dashboard));
                      }
                    },
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
      body: SafeArea(
        child: RefreshIndicator(
          onRefresh: _onRefresh,
          color: MyColors.textMixColor,
          child: SingleChildScrollView(
            controller: _scrollController,
            physics: const AlwaysScrollableScrollPhysics(parent: BouncingScrollPhysics()),
            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                // Search Input Card
                _buildSearchBar(isAr),

                // "Browse Categories" Header
                _buildBrowseCategoriesHeader(isAr),

                // Categories Section
                if (categoriesList.isNotEmpty) _buildCategoriesList(isAr) else _buildCategoriesShimmer(),

                // Type Filter Chips (All, In Store, Online)
                _buildTypeFilterChips(isAr),

                const SizedBox(height: 16),

                // Offers Grid
                if (isLoading)
                  _buildRetailersShimmer()
                else if (_filteredRetailersList.isNotEmpty) ...[
                  GridView.builder(
                    shrinkWrap: true,
                    physics: const NeverScrollableScrollPhysics(),
                    gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2, childAspectRatio: 0.85, crossAxisSpacing: 12, mainAxisSpacing: 16),
                    itemCount: _filteredRetailersList.length,
                    itemBuilder: (context, index) {
                      return _buildOfferCard(_filteredRetailersList[index], isAr);
                    },
                  ),
                  if (isLoadingMore) ...[
                    16.height,
                    Center(child: Padding(padding: const EdgeInsets.symmetric(vertical: 12), child: Image.asset("assets/images/logos/loading_mohemm_logo.gif", height: 48.0, width: 48.0))),
                  ],
                ] else
                  Padding(padding: const EdgeInsets.only(top: 40), child: Center(child: LocaleKeys.noOffersAvailable.tr().toText14(color: const Color(0xFF64748B)))),
              ],
            ),
          ),
        ),
      ),
    );
  }

  Widget _buildSearchBar(bool isAr) {
    return Container(
      width: double.infinity,
      height: 70,
      padding: const EdgeInsets.only(top: 14, right: 16, bottom: 14, left: 16),
      decoration: BoxDecoration(
        color: const Color(0xFFFFFFFF),
        borderRadius: BorderRadius.circular(16),
        border: Border.all(color: const Color(0xFFE8E8E8), width: 1.0),
        boxShadow: [BoxShadow(color: const Color(0xFF000000).withOpacity(0.0314), offset: const Offset(0, 2), blurRadius: 5, spreadRadius: 0)],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          LocaleKeys.search.tr().toText12(isBold: true, color: const Color(0xFF2A333C)),
          const SizedBox(height: 2),
          TextField(
            controller: _searchController,
            onChanged: _runFilter,
            decoration: InputDecoration(
              isDense: true,
              contentPadding: EdgeInsets.zero,
              hintText: LocaleKeys.searchItems.tr(),
              hintStyle: const TextStyle(color: Color(0xFFACAFB1), fontSize: 14, fontWeight: FontWeight.w400, height: 1.2),
              border: InputBorder.none,
            ),
            style: const TextStyle(color: Color(0xFF2A333C), fontSize: 14, fontWeight: FontWeight.w400),
          ),
        ],
      ),
    );
  }

  Widget _buildBrowseCategoriesHeader(bool isAr) {
    return Padding(padding: const EdgeInsets.only(top: 22, bottom: 14), child: LocaleKeys.browseCategories.tr().toText18(isBold: true, color: const Color(0xFF1E293B)));
  }

  Widget _buildCategoriesList(bool isAr) {
    return SizedBox(
      height: 136.0,
      width: double.infinity,
      child: ListView.separated(
        scrollDirection: Axis.horizontal,
        physics: const BouncingScrollPhysics(),
        padding: EdgeInsets.zero,
        itemCount: categoriesList.length,
        separatorBuilder: (_, __) => const SizedBox(width: 14),
        itemBuilder: (BuildContext context, int index) {
          WalaPlusCategoryModel item = categoriesList[index];
          bool isSelected = (item.id == "all" && (currentCategoryId == "all" || currentCategoryId.isEmpty)) || (currentCategoryId.isNotEmpty && currentCategoryId == item.id);
          String title = (item.id == "all") ? LocaleKeys.allCategories.tr() : (item.name ?? "");

          return InkWell(
            borderRadius: BorderRadius.circular(18),
            onTap: () {
              if (currentCategoryId != item.id) {
                setState(() {
                  currentCategoryId = item.id ?? "";
                });
                fetchOffers(categoryId: currentCategoryId);
              }
            },
            child: SizedBox(
              width: 84,
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  _buildCategoryCard(item, isSelected),
                  const SizedBox(height: 8),
                  title.toText13(
                    // isBold: true,
                    color: const Color(0xFF1E293B),
                    maxlines: 2,
                    overflow: TextOverflow.ellipsis,
                  ),
                ],
              ),
            ),
          );
        },
      ),
    );
  }

  Widget _buildTypeFilterChips(bool isAr) {
    List<String> types = _availableTypeFilters;

    return Padding(
      padding: const EdgeInsets.only(top: 14, bottom: 2),
      child: SizedBox(
        height: 38,
        child: ListView.separated(
          scrollDirection: Axis.horizontal,
          physics: const BouncingScrollPhysics(),
          itemCount: types.length,
          separatorBuilder: (BuildContext _, int __) => const SizedBox(width: 8),
          itemBuilder: (BuildContext context, int index) {
            String typeKey = types[index];
            bool isSelected = selectedTypeFilter == typeKey;
            String title = _getTypeFilterTitle(typeKey);
            IconData icon = _getTypeFilterIcon(typeKey);

            return InkWell(
              borderRadius: BorderRadius.circular(6),
              onTap: () {
                if (selectedTypeFilter != typeKey) {
                  setState(() {
                    selectedTypeFilter = typeKey;
                  });
                  _runFilter();
                }
              },
              child: Container(
                padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                alignment: Alignment.center,
                decoration: BoxDecoration(borderRadius: BorderRadius.circular(6), color: isSelected ? MyColors.darkIconColor : MyColors.lightGreyEAColor),
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: <Widget>[
                    Icon(icon, size: 14, color: isSelected ? MyColors.white : MyColors.black),
                    const SizedBox(width: 5),
                    title.toText12(color: isSelected ? MyColors.white : MyColors.black),
                  ],
                ),
              ),
            );
          },
        ),
      ),
    );
  }

  Widget _buildCategoryCard(WalaPlusCategoryModel item, bool isSelected) {
    const double cardSize = 84.0;
    const double borderRadiusVal = 18.0;
    const double borderWidthVal = 2.8;
    const Color activeBorderColor = Color(0xFF00A86B);

    bool isAll = (item.id == "all" || item.id == "0" || (item.name ?? "").toLowerCase() == "all" || item.name == "الجميع" || item.name == "الكل");

    Widget imageContent;

    if (isAll) {
      imageContent = Image.asset('assets/images/cat_all.png', width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _getFallbackCategoryAsset(item));
    } else {
      String categoryImageUrl = item.categoryImageUrl.isNotEmpty ? item.categoryImageUrl : (item.image?.trim() ?? "");

      if (categoryImageUrl.isNotEmpty) {
        if (categoryImageUrl.toLowerCase().endsWith('.svg') || item.isSvg) {
          imageContent = SvgPicture.network(
            categoryImageUrl,
            width: double.infinity,
            height: double.infinity,
            fit: BoxFit.cover,
            placeholderBuilder: (_) => const Center(child: SizedBox(width: 20, height: 20, child: CircularProgressIndicator(strokeWidth: 2, color: Color(0xFF00A86B)))),
          );
        } else {
          imageContent = Image.network(categoryImageUrl, width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _getFallbackCategoryAsset(item));
        }
      } else {
        imageContent = _getFallbackCategoryAsset(item);
      }
    }

    return Container(
      width: cardSize,
      height: cardSize,
      decoration: BoxDecoration(
        color: Colors.transparent,
        borderRadius: BorderRadius.circular(borderRadiusVal),
        border: isSelected ? Border.all(color: activeBorderColor, width: borderWidthVal) : null,
      ),
      child: ClipRRect(borderRadius: BorderRadius.circular(isSelected ? (borderRadiusVal - borderWidthVal) : borderRadiusVal), child: imageContent),
    );
  }

  Widget _getFallbackCategoryAsset(WalaPlusCategoryModel item) {
    String name = (item.name ?? "").toLowerCase();

    if (item.id == "all" || item.id == "0" || name == "all" || name == "الكل" || name == "الجميع") {
      return Image.asset('assets/images/cat_all.png', width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _buildFallbackCategoryIconWidget(item));
    } else if (name.contains("shop") || name.contains("retail") || name.contains("تسوق") || name.contains("تجزئة")) {
      return Image.asset('assets/images/cat_retail.png', width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _buildFallbackCategoryIconWidget(item));
    } else if (name.contains("food") || name.contains("restaurant") || name.contains("مطاعم") || name.contains("أغذية") || name.contains("cafe") || name.contains("مقهى")) {
      return Image.asset('assets/images/cat_food.png', width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _buildFallbackCategoryIconWidget(item));
    } else if (name.contains("fitness") || name.contains("wellness") || name.contains("sport") || name.contains("gym") || name.contains("رياضة") || name.contains("لياقة") || name.contains("صحة")) {
      return Image.asset('assets/images/cat_fitness.png', width: double.infinity, height: double.infinity, fit: BoxFit.cover, errorBuilder: (_, __, ___) => _buildFallbackCategoryIconWidget(item));
    }

    return _buildFallbackCategoryIconWidget(item);
  }

  Widget _buildFallbackCategoryIconWidget(WalaPlusCategoryModel item) {
    return Container(color: Colors.transparent, alignment: Alignment.center, child: _getFallbackCategoryIcon(item, const Color(0xFF168A89)));
  }

  Widget _getFallbackCategoryIcon(WalaPlusCategoryModel item, Color iconColor) {
    String name = (item.name ?? "").toLowerCase();
    IconData iconData = Icons.grid_view_rounded;
    Color color = iconColor;
    if (item.id == "all" || name == "all" || name == "الكل" || name == "الجميع") {
      iconData = Icons.confirmation_number_outlined;
      color = const Color(0xFFE52332);
    } else if (name.contains("finance") || name.contains("بنوك") || name.contains("مالي")) {
      iconData = Icons.account_balance_rounded;
    } else if (name.contains("entertain") || name.contains("activities") || name.contains("أنشطة") || name.contains("ترفيه")) {
      iconData = Icons.theater_comedy_rounded;
    } else if (name.contains("educat") || name.contains("تعليم")) {
      iconData = Icons.menu_book_rounded;
    } else if (name.contains("shop") || name.contains("retail") || name.contains("تسوق") || name.contains("تجزئة")) {
      iconData = Icons.shopping_bag_outlined;
    } else if (name.contains("health") || name.contains("medical") || name.contains("صحة") || name.contains("طبي")) {
      iconData = Icons.health_and_safety_outlined;
    } else if (name.contains("beauty") || name.contains("جمال") || name.contains("عناية")) {
      iconData = Icons.face_retouching_natural_rounded;
    } else if (name.contains("fitness") || name.contains("sport") || name.contains("gym") || name.contains("رياضة") || name.contains("لياقة")) {
      iconData = Icons.fitness_center_rounded;
    } else if (name.contains("hotel") || name.contains("travel") || name.contains("فندق") || name.contains("فنادق") || name.contains("سفر")) {
      iconData = Icons.hotel_rounded;
    } else if (name.contains("service") || name.contains("خدمات")) {
      iconData = Icons.build_circle_outlined;
    } else if (name.contains("food") || name.contains("restaurant") || name.contains("مطاعم") || name.contains("أغذية")) {
      iconData = Icons.restaurant_rounded;
    } else if (name.contains("home") || name.contains("منزل")) {
      iconData = Icons.home_rounded;
    }

    return Icon(iconData, color: color, size: 26);
  }

  String _getDiscountBadge(WalaPlusRetailerModel item) {
    if (item.offerTitle != null) {
      RegExp percentRegex = RegExp(r'(\d+%)');
      Match? match = percentRegex.firstMatch(item.offerTitle!);
      if (match != null) {
        return match.group(1)!;
      }
    }
    if (item.name != null) {
      RegExp percentRegex = RegExp(r'(\d+%)');
      Match? match = percentRegex.firstMatch(item.name!);
      if (match != null) {
        return match.group(1)!;
      }
    }
    return "";
  }

  Widget _buildMerchantMIcon() {
    return Container(color: const Color(0xFFED1C24), alignment: Alignment.center, child: "M".toText10(isBold: true, color: Colors.white));
  }

  Widget _buildOfferCard(WalaPlusRetailerModel item, bool isAr) {
    String? bannerUrl = (item.imageThumb != null && item.imageThumb!.isNotEmpty) ? item.imageThumb : item.image;
    String? logoUrl = (item.logoThumb != null && item.logoThumb!.isNotEmpty) ? item.logoThumb : item.logo;

    String discountText = _getDiscountBadge(item);

    String offerSubtitle = "";
    if (discountText.isNotEmpty) {
      if (item.offerTitle != null && item.offerTitle!.toLowerCase().contains("off")) {
        offerSubtitle = item.offerTitle!;
      } else {
        offerSubtitle = LocaleKeys.offDiscount.tr(args: [discountText]);
      }
    } else if (item.offerTitle != null && item.offerTitle!.trim().isNotEmpty) {
      offerSubtitle = item.offerTitle!.trim();
    }

    String? typeText = item.getDisplayType();
    bool isOnline = item.isOnlineStore;
    String validityText = item.getDisplayValidity();
    String usageText = "";
    if (item.displayUsage.isNotEmpty) {
      usageText = item.displayUsage.replaceAll('usage:', LocaleKeys.usageLabel.tr()).replaceAll('Usage :', LocaleKeys.usageLabel.tr());
    }
    String cityText = item.getDisplayCity(isAr: isAr);
    if (cityText.trim().isEmpty) {
      cityText = item.displayCity;
    }

    return InkWell(
      borderRadius: BorderRadius.circular(20),
      onTap: () => _openRetailer(item),
      child: Container(
        decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.circular(20),
          boxShadow: [BoxShadow(color: const Color(0xFF0D1720).withOpacity(0.0392), offset: const Offset(0, 5), blurRadius: 18, spreadRadius: 0)],
        ),
        padding: const EdgeInsets.all(10),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // Inset image with rounded corners
            ClipRRect(
              borderRadius: BorderRadius.circular(14),
              child: SizedBox(
                height: 120,
                width: double.infinity,
                child: Stack(
                  fit: StackFit.expand,
                  children: [
                    // Banner Image
                    (bannerUrl != null && bannerUrl.isNotEmpty)
                        ? Image.network(
                          bannerUrl,
                          fit: BoxFit.cover,
                          errorBuilder: (_, __, ___) => Container(color: const Color(0xFFF1F5F9), child: const Icon(Icons.image_outlined, color: Color(0xFF94A3B8), size: 32)),
                        )
                        : Container(color: const Color(0xFFF1F5F9), child: const Icon(Icons.image_outlined, color: Color(0xFF94A3B8), size: 32)),

                    // Gradient overlay at bottom of image
                    Positioned(
                      bottom: 0,
                      left: 0,
                      right: 0,
                      height: 50,
                      child: Container(
                        decoration: BoxDecoration(gradient: LinearGradient(begin: Alignment.bottomCenter, end: Alignment.topCenter, colors: [Colors.black.withOpacity(0.75), Colors.transparent])),
                      ),
                    ),

                    // Discount badge at top right (flush with edge, pill on start side)
                    if (discountText.isNotEmpty)
                      PositionedDirectional(
                        top: 20,
                        end: 0,
                        child: Container(
                          padding: const EdgeInsetsDirectional.only(start: 14, end: 10, top: 4, bottom: 4),
                          decoration: const BoxDecoration(color: Color(0xFFED1C24), borderRadius: BorderRadiusDirectional.only(topStart: Radius.circular(20), bottomStart: Radius.circular(20))),
                          child: discountText.toText14(isBold: true, color: Colors.white),
                        ),
                      ),

                    // Brand logo & name at bottom left
                    PositionedDirectional(
                      bottom: 8,
                      start: 8,
                      end: 8,
                      child: Row(
                        children: [
                          Container(
                            width: 18,
                            height: 18,
                            decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4)),
                            clipBehavior: Clip.antiAlias,
                            child: (logoUrl != null && logoUrl.isNotEmpty) ? Image.network(logoUrl, fit: BoxFit.contain, errorBuilder: (_, __, ___) => _buildMerchantMIcon()) : _buildMerchantMIcon(),
                          ),
                          const SizedBox(width: 5),
                          Expanded(child: (item.name ?? "").toText11(isBold: true, maxLine: 1, color: Colors.white)),
                        ],
                      ),
                    ),
                  ],
                ),
              ),
            ),

            const SizedBox(height: 8),

            // Retailer Name / Bundle Title
            (item.name ?? "").toText14(isBold: true, maxlines: 1, overflow: TextOverflow.ellipsis, color: const Color(0xFF1E293B)),
            if (offerSubtitle.isNotEmpty) ...[const SizedBox(height: 2), offerSubtitle.toText14(maxlines: 1, overflow: TextOverflow.ellipsis, isBold: true, color: const Color(0xFF1E293B))],

            // Badges Row: Type, Validity, Location & Usage
            if ((typeText != null && typeText.trim().isNotEmpty) || validityText.trim().isNotEmpty || cityText.trim().isNotEmpty || usageText.trim().isNotEmpty) ...[
              const SizedBox(height: 6),
              Wrap(
                spacing: 5,
                runSpacing: 4,
                children: <Widget>[
                  // Type Chip (Online or In Store)
                  if (typeText != null && typeText.trim().isNotEmpty)
                    InfoChipWidget(
                      text: typeText,
                      icon: isOnline ? Icons.language_rounded : Icons.storefront_rounded,
                      backgroundColor: isOnline ? const Color(0xFFEFF6FF) : const Color(0xFFF5F3FF),
                      textColor: isOnline ? const Color(0xFF2563EB) : const Color(0xFF7C3AED),
                    ),

                  // Validity badge
                  if (validityText.trim().isNotEmpty) InfoChipWidget(text: validityText, backgroundColor: const Color(0xFFE6F7F0), textColor: const Color(0xFF00A651)),

                  // Location Badge
                  if (cityText.trim().isNotEmpty)
                    InfoChipWidget(
                      text: cityText,
                      svgIcon: "assets/icons/location.svg",
                      isBold: false,
                      backgroundColor: const Color(0xFFF3F4F6),
                      textColor: const Color(0xFF4B5563),
                      iconColor: const Color(0xFF64748B),
                      iconTextGap: 2.5,
                    ),

                  // Usage badge
                  if (usageText.trim().isNotEmpty) InfoChipWidget(text: usageText, backgroundColor: const Color(0xFFFEF3C7), textColor: const Color(0xFFB45309)),
                ],
              ),
            ],
          ],
        ),
      ),
    );
  }

  Widget _buildRetailersShimmer() {
    return Shimmer.fromColors(
      baseColor: const Color(0xFFE2E8F0),
      highlightColor: const Color(0xFFF8FAFC),
      child: GridView.builder(
        shrinkWrap: true,
        physics: const NeverScrollableScrollPhysics(),
        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2, childAspectRatio: 0.72, crossAxisSpacing: 12, mainAxisSpacing: 16),
        itemCount: 4,
        itemBuilder: (_, __) {
          return Container(
            decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(20)),
            padding: const EdgeInsets.all(10),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Container(height: 105, width: double.infinity, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(14))),
                const SizedBox(height: 8),
                Container(height: 14, width: 110, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4))),
                const SizedBox(height: 4),
                Container(height: 12, width: 80, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4))),
                const SizedBox(height: 6),
                Wrap(
                  spacing: 5,
                  runSpacing: 4,
                  children: <Widget>[
                    Container(height: 16, width: 50, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(10))),
                    Container(height: 16, width: 45, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(10))),
                    Container(height: 16, width: 45, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(10))),
                  ],
                ),
              ],
            ),
          );
        },
      ),
    );
  }

  Widget _buildCategoriesShimmer() {
    return SizedBox(
      height: 136.0,
      child: Shimmer.fromColors(
        baseColor: const Color(0xFFE2E8F0),
        highlightColor: const Color(0xFFF8FAFC),
        child: ListView.separated(
          shrinkWrap: true,
          scrollDirection: Axis.horizontal,
          physics: const NeverScrollableScrollPhysics(),
          padding: EdgeInsets.zero,
          itemCount: 5,
          separatorBuilder: (BuildContext _, int __) => const SizedBox(width: 14),
          itemBuilder: (BuildContext _, int index) {
            return SizedBox(
              width: 84,
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Container(width: 84, height: 84, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(18))),
                  const SizedBox(height: 8),
                  Container(width: 65, height: 11, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4))),
                  const SizedBox(height: 4),
                  Container(width: 42, height: 11, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4))),
                ],
              ),
            );
          },
        ),
      ),
    );
  }
}