import 'dart:async';
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:geolocator/geolocator.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/main.dart';
import 'package:mohem_flutter_app/models/generic_response_model.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/models/post_params_model.dart';
import 'package:mohem_flutter_app/widgets/bottom_sheets/confirm_bottom_sheet.dart';
import 'package:mohem_flutter_app/widgets/button/default_button.dart';
import 'package:mohem_flutter_app/widgets/info_chip_widget.dart';
import 'package:mohem_flutter_app/widgets/location/Location.dart' as location;
import 'package:permission_handler/permission_handler.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 = [];
  WalaPlusCategoryModel? selectedCategory;
  String currentCategoryId = "";
  String selectedTypeFilter = "all";
  String selectedCity = "Riyadh";
  bool _isInitRouteArgs = false;

  // Subcategories of whichever main category is currently selected - fetched via
  // getWalaPlusCategories(parentId: ...) whenever a main category card is tapped. Empty/cleared
  // when "All Categories" (or nothing) is selected, since there's no specific parent to ask for.
  List<WalaPlusCategoryModel> subcategoriesList = <WalaPlusCategoryModel>[];
  bool isSubcategoriesLoading = false;
  String? _selectedSubcategoryId;

  // Filters bottom sheet state - all fully wired to the API now. Availability drives
  // WP_Offer_Type (via selectedTypeFilter), _filterSortBy drives WP_Sort_By ('nearest'
  // requires WP_Geo_Location, see _ensureLocationReadyForNearestSort), _filterDistance drives
  // WP_Radius (null when "any"), _filterMinDiscount drives WP_Min_Discount (null when "any").
  // Committed on "Apply filters"/"Reset"; persisted here so reopening the sheet shows the
  // last-applied selection (availability's source of truth is selectedTypeFilter itself).
  String _filterSortBy = 'newest';
  String _filterDistance = 'any';
  String _filterMinDiscount = 'any';
  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 = "";
  Timer? _debounceTimer;
  final TextEditingController _searchController = TextEditingController();
  final ScrollController _scrollController = ScrollController();
  bool _hasRegisteredMobileLoginInfo = false;

  @override
  void initState() {
    super.initState();
    _scrollController.addListener(_scrollListener);
    _loadDependentName();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      if (mounted) {
        await _saveDependentSessionToPrefs();
        await _registerMobileLoginInfo();
        await fetchCategories();
      }
    });
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    if (!_isInitRouteArgs) {
      _isInitRouteArgs = true;
      Object? args = ModalRoute.of(context)?.settings.arguments;
      if (args is WalaPlusCategoryModel) {
        selectedCategory = args;
        currentCategoryId = args.id ?? "";
      } else if (args is Map && args['category'] is WalaPlusCategoryModel) {
        selectedCategory = args['category'] as WalaPlusCategoryModel;
        currentCategoryId = selectedCategory?.id ?? "";
      }
    }
  }

  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 != null && AppState().getDeviceToken!.isNotEmpty && AppState().getDeviceToken != "null")
              ? AppState().getDeviceToken!
              : "");
      if (deviceToken.isEmpty || deviceToken == "null") {
        String savedToken = await Utils.getStringFromPrefs("P_DEP_DEVICE_TOKEN");
        if (savedToken.isNotEmpty && savedToken != "null") {
          deviceToken = savedToken;
        }
      }

      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(() {});
    }
  }

  String _cleanDependentName(String name) {
    return name.replaceAll(RegExp(r'\s*-\s*'), ' ').replaceAll(RegExp(r'\s+'), ' ').trim();
  }

  @override
  void dispose() {
    _debounceTimer?.cancel();
    _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) {
        categoriesList = list;

        if (selectedCategory != null) {
          for (WalaPlusCategoryModel cat in list) {
            if (cat.id == selectedCategory!.id) {
              selectedCategory = cat;
              break;
            }
          }
        } else {
          WalaPlusCategoryModel? defaultCat;
          for (WalaPlusCategoryModel cat in list) {
            String n = (cat.name ?? "").toLowerCase();
            if (n.contains("travel") || n.contains("entertain") || n.contains("سفر") || n.contains("ترفيه")) {
              defaultCat = cat;
              break;
            }
          }
          defaultCat ??= list.firstWhere(
            (c) => c.id != "all" && c.id != "0" && (c.name ?? "").toLowerCase() != "all" && c.name != "الكل" && c.name != "الجميع",
            orElse: () => list.isNotEmpty ? list.first : WalaPlusCategoryModel(id: "1", name: "Travel & Entertainment"),
          );
          selectedCategory = defaultCat;
        }

        currentCategoryId = selectedCategory?.id ?? "";
        setState(() {});

        if (currentCategoryId.isNotEmpty) {
          await fetchSubcategories(currentCategoryId);
          await fetchOffers(categoryId: currentCategoryId);
        }
      }
    } 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) {
          categoriesList = retryList;
          if (selectedCategory != null) {
            for (WalaPlusCategoryModel cat in retryList) {
              if (cat.id == selectedCategory!.id) {
                selectedCategory = cat;
                break;
              }
            }
          } else {
            WalaPlusCategoryModel? defaultCat;
            for (WalaPlusCategoryModel cat in retryList) {
              String n = (cat.name ?? "").toLowerCase();
              if (n.contains("travel") || n.contains("entertain") || n.contains("سفر") || n.contains("ترفيه")) {
                defaultCat = cat;
                break;
              }
            }
            defaultCat ??= retryList.firstWhere(
              (c) => c.id != "all" && c.id != "0" && (c.name ?? "").toLowerCase() != "all" && c.name != "الكل" && c.name != "الجميع",
              orElse: () => retryList.first,
            );
            selectedCategory = defaultCat;
          }
          currentCategoryId = selectedCategory?.id ?? "";
          setState(() {});
          if (currentCategoryId.isNotEmpty) {
            await fetchSubcategories(currentCategoryId);
            await fetchOffers(categoryId: currentCategoryId);
          }
          return;
        }
      } catch (retryEx) {
        debugPrint("Error fetching WalaPlus categories (attempt 2): $retryEx");
      }

      if (mounted) {
        if (selectedCategory == null) {
          selectedCategory = WalaPlusCategoryModel(id: "1", name: "Travel & Entertainment");
          currentCategoryId = "1";
        }
        setState(() {});
        await fetchOffers(categoryId: currentCategoryId);
      }
    } finally {
      if (mounted) {
        setState(() {
          isCategoriesLoading = false;
        });
      }
    }
  }

  // Fetches the subcategories under a main category (WP_ParentId). "All Categories" (or no
  // category) has no specific parent, so that just clears the list instead of calling the API.
  Future<void> fetchSubcategories(String? parentId) async {
    if (parentId == null || parentId.isEmpty || parentId == "all") {
      setState(() {
        subcategoriesList = <WalaPlusCategoryModel>[];
        _selectedSubcategoryId = null;
      });
      return;
    }

    setState(() {
      isSubcategoriesLoading = true;
    });

    try {
      List<WalaPlusCategoryModel> list = await OffersAndDiscountsApiClient().getWalaPlusCategories(context: context, parentId: parentId);
      if (mounted) {
        setState(() {
          subcategoriesList = list;
          _selectedSubcategoryId = null;
        });
      }
    } catch (e) {
      debugPrint("Error fetching WalaPlus subcategories: $e");
      if (mounted) {
        setState(() {
          subcategoriesList = <WalaPlusCategoryModel>[];
        });
      }
    } finally {
      if (mounted) {
        setState(() {
          isSubcategoriesLoading = false;
        });
      }
    }
  }

  String? _getUserReferenceForFavorites() {
    String ref = OffersAndDiscountsApiClient().resolveUserReference();
    if (ref.trim().isNotEmpty) return ref.trim();
    String? userName = AppState().getUserName;
    if (userName != null && userName.trim().isNotEmpty) return userName.trim();
    return null;
  }

  Future<void> fetchOffers({String? categoryId, String? query}) async {
    String targetCategoryId = categoryId ?? _selectedSubcategoryId ?? (currentCategoryId.isEmpty ? (selectedCategory?.id ?? "") : currentCategoryId);
    if (query != null) {
      searchQuery = query;
    }

    bool wantsNearest = _filterSortBy == 'nearest';
    if (wantsNearest && !await _ensureLocationReadyForNearestSort()) {
      return;
    }

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

    try {
      String catParam = (targetCategoryId == "all" || targetCategoryId == "0") ? "" : targetCategoryId;
      String? offerTypeParam = OffersAndDiscountsApiClient.mapOfferTypeFilter(selectedTypeFilter);
      String? queryParam = searchQuery.trim().isNotEmpty ? searchQuery.trim() : null;
      int? radiusParam = _radiusFromFilterDistance(_filterDistance);
      int? minDiscountParam = _filterMinDiscount == 'any' ? null : int.tryParse(_filterMinDiscount);
      print("Fetching WalaPlus retailers: category='$catParam', offerType='$offerTypeParam', query='$queryParam', page=1, per_page=$pageSize");
      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: catParam,
        page: 1,
        perPage: pageSize,
        offerType: offerTypeParam,
        query: queryParam,
        sortBy: _filterSortBy,
        radius: radiusParam,
        minDiscount: minDiscountParam,
        context: wantsNearest ? context : null,
        userReference: null,
      );

      retailersList = response?.retailers ?? <WalaPlusRetailerModel>[];
      _filteredRetailersList = retailersList;
      currentPage = 1;
      totalPages = response?.pagesCount ?? 1;
      hasMore = currentPage < totalPages && (response?.retailers?.isNotEmpty ?? false);
    } catch (e) {
      print("Error fetching WalaPlus retailers: $e");
      retailersList = <WalaPlusRetailerModel>[];
      _filteredRetailersList = <WalaPlusRetailerModel>[];
    } finally {
      if (mounted) {
        setState(() {
          isLoading = false;
        });
      }
    }
  }

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

    bool wantsNearest = _filterSortBy == 'nearest';
    if (wantsNearest && !await _ensureLocationReadyForNearestSort()) {
      return;
    }

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

    try {
      int nextPage = currentPage + 1;
      String effectiveCategoryId = _selectedSubcategoryId ?? currentCategoryId;
      String catParam = (effectiveCategoryId == "all" || effectiveCategoryId == "0") ? "" : effectiveCategoryId;
      String? offerTypeParam = OffersAndDiscountsApiClient.mapOfferTypeFilter(selectedTypeFilter);
      String? queryParam = searchQuery.trim().isNotEmpty ? searchQuery.trim() : null;
      int? radiusParam = _radiusFromFilterDistance(_filterDistance);
      int? minDiscountParam = (_filterMinDiscount == 'any') ? null : int.tryParse(_filterMinDiscount);
      print("Fetching WalaPlus retailers next page: $nextPage of $totalPages, category: '$catParam', offerType: '$offerTypeParam', query: '$queryParam'");

      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: catParam,
        page: nextPage,
        perPage: pageSize,
        offerType: offerTypeParam,
        query: queryParam,
        sortBy: _filterSortBy,
        radius: radiusParam,
        minDiscount: minDiscountParam,
        context: wantsNearest ? context : null,
        userReference: null,
      );

      List<WalaPlusRetailerModel> newRetailers = response?.retailers ?? [];
      if (newRetailers.isNotEmpty) {
        currentPage = nextPage;
        totalPages = response?.pagesCount ?? totalPages;
        hasMore = currentPage < totalPages;
        retailersList.addAll(newRetailers);
        _filteredRetailersList = retailersList;
      } 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 {
    String effectiveCategoryId = _selectedSubcategoryId ?? (currentCategoryId.isEmpty ? (selectedCategory?.id ?? "") : currentCategoryId);
    await Future.wait<dynamic>(<Future<void>>[
      fetchCategories(),
      fetchOffers(categoryId: effectiveCategoryId, query: _searchController.text),
    ]);
  }

  // '5km'/'10km'/'25km' -> 5/10/25 for WP_Radius; 'any' -> null (omit the param - no distance cap).
  int? _radiusFromFilterDistance(String distance) {
    if (distance == 'any') return null;
    return int.tryParse(distance.replaceAll('km', ''));
  }

  // WP_Sort_By=nearest requires WP_Geo_Location to be passed alongside it, so before fetching
  // with "Nearest" selected we make sure location services + permission are actually available.
  // Mirrors the existing attendance-flow location-permission pattern (see
  // mark_attendance_widget.dart's checkHuaweiLocationPermission): services-off -> prompt to open
  // settings, permission-not-granted -> request it, still denied -> toast. Never auto-retries the
  // fetch - the user must grant access and trigger the fetch again themselves.
  Future<bool> _ensureLocationReadyForNearestSort() async {
    Completer<bool> enabledCompleter = Completer<bool>();
    location.Location.isEnabled((bool isEnabled) {
      if (!enabledCompleter.isCompleted) enabledCompleter.complete(isEnabled);
    });
    bool isEnabled = await enabledCompleter.future;
    if (!isEnabled) {
      if (mounted) {
        ConfirmBottomSheet.show(
          context,
          message: LocaleKeys.locationServicesRequiredForNearestOffers.tr(),
          confirmText: LocaleKeys.openSettings.tr(),
          showCancelButton: false,
          onConfirm: () async {
            await Geolocator.openLocationSettings();
          },
        );
      }
      return false;
    }

    Completer<bool> permissionCompleter = Completer<bool>();
    location.Location.havePermission((bool hasPermission) {
      if (!permissionCompleter.isCompleted) permissionCompleter.complete(hasPermission);
    });
    bool hasPermission = await permissionCompleter.future;
    if (!hasPermission) {
      bool granted = await _requestLocationPermission();
      if (!granted) {
        Utils.showToast(LocaleKeys.locationPermissionRequiredForNearestOffers.tr());
        return false;
      }
    }
    return true;
  }

  Future<bool> _requestLocationPermission() async {
    Map<Permission, PermissionStatus> result = await <Permission>[Permission.location].request();
    return result[Permission.location] == PermissionStatus.granted || result[Permission.locationAlways] == PermissionStatus.granted;
  }

  void _onSearchChanged(String query) {
    _debounceTimer?.cancel();
    searchQuery = query;
    String effectiveCategoryId = _selectedSubcategoryId ?? currentCategoryId;
    if (query.trim().isEmpty) {
      fetchOffers(categoryId: effectiveCategoryId, query: "");
    } else {
      _debounceTimer = Timer(const Duration(milliseconds: 600), () {
        fetchOffers(categoryId: effectiveCategoryId, query: query.trim());
      });
    }
  }

  Future<void> _toggleFavorite(WalaPlusRetailerModel item) async {
    String retailerId = item.id ?? "";
    if (retailerId.isEmpty) return;

    bool currentFav = item.isFavorite ?? false;
    bool targetFav = !currentFav;

    setState(() {
      item.isFavorite = targetFav;
    });

    try {
      GenericResponseModel? response;
      String? userRef = _getUserReferenceForFavorites();
      if (targetFav) {
        response = await OffersAndDiscountsApiClient().addWalaPlusFavorite(
          retailerId: retailerId,
          context: context,
          userReference: userRef,
        );
      } else {
        response = await OffersAndDiscountsApiClient().removeWalaPlusFavorite(
          retailerId: retailerId,
          context: context,
          userReference: userRef,
        );
      }

      if (response != null && response.errorMessage == null) {
        bool isAr = AppState().isArabic(context);
        String msg;
        if (isAr) {
          msg = targetFav ? LocaleKeys.favoriteAddedSuccess.tr() : LocaleKeys.favoriteRemovedSuccess.tr();
        } else {
          msg = response.wpFavoritesAddRemoveMessage ?? "";
          if (msg.trim().isEmpty) {
            msg = targetFav ? LocaleKeys.favoriteAddedSuccess.tr() : LocaleKeys.favoriteRemovedSuccess.tr();
          }
        }
        Utils.showToast(msg, isSuccess: true);
      } else {
        if (mounted) {
          setState(() {
            item.isFavorite = currentFav;
          });
        }
        String error = response?.errorEndUserMessage ?? response?.errorMessage ?? LocaleKeys.favoriteError.tr();
        Utils.showToast(error);
      }
    } catch (e) {
      debugPrint("Error toggling favorite: $e");
      if (mounted) {
        setState(() {
          item.isFavorite = currentFav;
        });
      }
      Utils.showToast(LocaleKeys.favoriteError.tr());
    }
  }

  void _openRetailer(WalaPlusRetailerModel item) async {
    if (item.categories == null || item.categories!.isEmpty) {
      if (selectedCategory != null) {
        item.categories = [selectedCategory!];
      } else if (currentCategoryId.isNotEmpty && currentCategoryId != "all") {
        for (var c in categoriesList) {
          if (c.id?.toString() == currentCategoryId) {
            item.categories = [c];
            break;
          }
        }
      }
    }
    await Navigator.pushNamed(context, AppRoutes.walaPlusRetailerDetails, arguments: item);
    if (mounted) {
      setState(() {});
    }
  }

  Future<void> _saveDependentSessionToPrefs() async {
    if (!ApiConsts.isDependetLogin) return;
    try {
      await Utils.saveStringFromPrefs("P_DEP_IS_LOGGED_IN", "true");
      String nationalId = AppState().getUserName ?? "";
      if (nationalId.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_NATIONAL_ID", nationalId);
      }
      String dob = AppState().dependentDob ?? "";
      if (dob.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_BIRTH_DATE", dob);
      }
      String name = AppState().dependentName ?? "";
      if (name.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEPENDENT_NAME", name);
      }
      String mobile = AppState().postParamsObject?.mobileNumber ?? "";
      if (mobile.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_MOBILE_NUMBER", mobile);
      }
      String tokenID =
          (AppState().postParamsObject?.tokenID != null && AppState().postParamsObject!.tokenID!.isNotEmpty) ? AppState().postParamsObject!.tokenID! : (AppState().authenticationTokenID ?? "");
      if (tokenID.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_TOKEN_ID", tokenID);
      }
      String logInTokenID = AppState().postParamsObject?.logInTokenID ?? "";
      if (logInTokenID.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_LOGIN_TOKEN_ID", logInTokenID);
      }
      String authTokenID = AppState().authenticationTokenID ?? "";
      if (authTokenID.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_AUTHENTICATION_TOKEN_ID", authTokenID);
      }
      int loginType = AppState().dependentLoginType ?? 1;
      await Utils.saveStringFromPrefs("P_DEP_LOGIN_TYPE", loginType.toString());
      String deviceToken = AppState().getIsHuawei ? AppState().getHuaweiPushToken : (AppState().getDeviceToken ?? "");
      if (deviceToken.isNotEmpty) {
        await Utils.saveStringFromPrefs("P_DEP_DEVICE_TOKEN", deviceToken);
      }
    } catch (e) {
      if (kDebugMode) print("Error saving dependent session to prefs: $e");
    }
  }

  Future<void> _clearDependentPrefs() async {
    await Utils.removeStringFromPrefs("P_DEP_IS_LOGGED_IN");
    await Utils.removeStringFromPrefs("P_DEP_NATIONAL_ID");
    await Utils.removeStringFromPrefs("P_DEP_BIRTH_DATE");
    await Utils.removeStringFromPrefs("P_DEP_TOKEN_ID");
    await Utils.removeStringFromPrefs("P_DEP_LOGIN_TOKEN_ID");
    await Utils.removeStringFromPrefs("P_DEP_AUTHENTICATION_TOKEN_ID");
    await Utils.removeStringFromPrefs("P_DEP_MOBILE_NUMBER");
    await Utils.removeStringFromPrefs("P_DEPENDENT_NAME");
    await Utils.removeStringFromPrefs("P_DEP_LOGIN_TYPE");
  }

  void _performLogout() {
    ConfirmBottomSheet.show(
      context,
      message: LocaleKeys.areYouSureWantToLogOut.tr(),
      confirmText: LocaleKeys.yes.tr(),
      cancelText: LocaleKeys.no.tr(),
      isDestructive: false,
      onConfirm: () async {
        if (ApiConsts.isDependetLogin) {
          await _clearDependentPrefs();
        }
        ApiConsts.selectedMemberType = MemberType.employee;
        ApiConsts.ISDependetLogin = false;
        AppState().setDependentName = null;
        AppState().setDependentDob = null;
        AppState().setDependentLoginType = null;
        AppState().setWalaplusDepInfoModel = null;
        AppState().setPostParamsInitConfig();
        if (mounted) {
          Navigator.pushNamedAndRemoveUntil(context, AppRoutes.login, (Route<dynamic> route) => false);
        }
      },
    );
  }

  Future<void> _changeLanguage(Locale newLocale) async {
    if (context.locale == newLocale) return;
    await context.setLocale(newLocale);
    PostParamsModel? obj = AppState().postParamsObject;
    if (obj != null) {
      obj.languageID = (newLocale.languageCode == "ar" ? 1 : 2);
      AppState().setPostParamsModel(obj);
    }
    if (mounted) {
      setState(() {});
      await fetchCategories();
      await fetchOffers(categoryId: currentCategoryId.isEmpty ? "all" : currentCategoryId);
    }
  }

  Widget _buildLanguageIconButton(bool isAr) {
    return Tooltip(
      message: isAr ? 'English' : 'العربية',
      child: InkWell(
        borderRadius: BorderRadius.circular(8),
        onTap: () {
          if (isAr) {
            _changeLanguage(const Locale("en", "US"));
          } else {
            _changeLanguage(const Locale("ar", "SA"));
          }
        },
        child: const Padding(padding: EdgeInsets.all(3), child: Icon(Icons.language_rounded, size: 24, color: Color(0xFF1E293B))),
      ),
    );
  }

  @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(
            children: [
              InkWell(
                borderRadius: BorderRadius.circular(10),
                onTap: () {
                  if (Navigator.canPop(context)) {
                    Navigator.pop(context);
                  } else if (ApiConsts.isDependetLogin) {
                    _performLogout();
                  }
                },
                child: const Padding(
                  padding: EdgeInsets.symmetric(horizontal: 4, vertical: 8),
                  child: Icon(Icons.arrow_back_ios_new_rounded, size: 20, color: Color(0xFF1E293B)),
                ),
              ),
              const SizedBox(width: 8),
              LocaleKeys.mazayaDeals.tr().toText22(isBold: true, color: const Color(0xFF202F31)),
            ],
          ),
        ),
        actions: [
          if (ApiConsts.isDependetLogin) ...[
            _buildLanguageIconButton(isAr),
            const SizedBox(width: 4),
            InkWell(
              borderRadius: BorderRadius.circular(8),
              onTap: _performLogout,
              child: Padding(
                padding: const EdgeInsets.all(6),
                child: SvgPicture.asset('assets/images/drawer/logout.svg', height: 20, width: 20),
              ),
            ),
            const SizedBox(width: 12),
          ],
        ],
      ),
      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: [
                // 1. Sub-header: "Explore your benefits" | "📍 Riyadh"
                _buildSubHeaderRow(isAr),

                // 2. Category Hero Section: Title, Subtitle, Category image
                _buildCategoryHero(isAr),

                // 3. Search Bar: "Find an escape or an experience"
                _buildSearchBar(isAr),

                // 4. Filters & Subcategories Row
                _buildSubcategoriesAndFilterRow(isAr),

                const SizedBox(height: 16),

                // 5. Offers Grid
                if (isLoading)
                  _buildRetailersShimmer()
                else if (_filteredRetailersList.isNotEmpty) ...[
                  GridView.builder(
                    shrinkWrap: true,
                    physics: const NeverScrollableScrollPhysics(),
                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                      crossAxisCount: isTablet ? 4 : 2,
                      mainAxisExtent: 235,
                      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 _buildSubHeaderRow(bool isAr) {
    return Padding(
      padding: const EdgeInsets.only(top: 4, bottom: 16),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          LocaleKeys.exploreYourBenefits.tr().toText13(color: const Color(0xFF79807F)),
          InkWell(
            borderRadius: BorderRadius.circular(8),
            onTap: _showCitySelectionBottomSheet,
            child: Padding(
              padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
              child: Row(
                mainAxisSize: MainAxisSize.min,
                children: [
                  const Icon(Icons.location_on_outlined, size: 16, color: Color(0xFF157D6B)),
                  const SizedBox(width: 4),
                  selectedCity.toText13(isBold: true, color: const Color(0xFF157D6B)),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildCategoryHero(bool isAr) {
    String categoryName = selectedCategory?.name ?? (isAr ? "السفر والترفيه" : "Travel & Entertainment");
    String subtitle = isAr ? "مغامرتك القادمة، مع القليل من التميز." : "Your next adventure, with a little extra.";

    return Padding(
      padding: const EdgeInsets.only(bottom: 16),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                categoryName.toText24(isBold: true, color: const Color(0xFF202F31)),
                const SizedBox(height: 6),
                subtitle.toText12(color: const Color(0xFF7A8180)),
              ],
            ),
          ),
          const SizedBox(width: 16),
          _buildCategoryHeroImage(selectedCategory),
        ],
      ),
    );
  }

  Widget _buildCategoryHeroImage(WalaPlusCategoryModel? category) {
    const double imgWidth = 84.0;
    const double imgHeight = 84.0;
    const double radius = 18.0;

    String? imgUrl = category?.categoryImageUrl;
    if (imgUrl != null && imgUrl.isNotEmpty) {
      if (imgUrl.toLowerCase().endsWith('.svg') || (category?.isSvg ?? false)) {
        return ClipRRect(
          borderRadius: BorderRadius.circular(radius),
          child: SizedBox(
            width: imgWidth,
            height: imgHeight,
            child: SvgPicture.network(
              imgUrl,
              fit: BoxFit.cover,
              placeholderBuilder: (_) => _buildCategoryHeroFallback(category, imgWidth, imgHeight, radius),
            ),
          ),
        );
      }
      return ClipRRect(
        borderRadius: BorderRadius.circular(radius),
        child: SizedBox(
          width: imgWidth,
          height: imgHeight,
          child: Image.network(
            imgUrl,
            fit: BoxFit.cover,
            errorBuilder: (_, __, ___) => _buildCategoryHeroFallback(category, imgWidth, imgHeight, radius),
          ),
        ),
      );
    }
    return _buildCategoryHeroFallback(category, imgWidth, imgHeight, radius);
  }

  Widget _buildCategoryHeroFallback(WalaPlusCategoryModel? category, double w, double h, double r) {
    return ClipRRect(
      borderRadius: BorderRadius.circular(r),
      child: Container(
        width: w,
        height: h,
        decoration: const BoxDecoration(
          gradient: LinearGradient(
            begin: Alignment.topLeft,
            end: Alignment.bottomRight,
            colors: [Color(0xFF38BDF8), Color(0xFF0284C7)],
          ),
        ),
        child: const Center(
          child: Icon(Icons.flight_takeoff_rounded, size: 36, color: Colors.white),
        ),
      ),
    );
  }

  Widget _buildSearchBar(bool isAr) {
    return Container(
      width: double.infinity,
      height: 46,
      padding: const EdgeInsets.symmetric(horizontal: 14),
      alignment: Alignment.center,
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(12),
        border: Border.all(color: const Color(0xFFE8EAE6), width: 1.0),
      ),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          const Icon(Icons.search_rounded, size: 20, color: Color(0xFF79807F)),
          const SizedBox(width: 10),
          Expanded(
            child: TextField(
              controller: _searchController,
              onChanged: _onSearchChanged,
              onSubmitted: (String val) {
                _debounceTimer?.cancel();
                fetchOffers(query: val.trim());
              },
              textInputAction: TextInputAction.search,
              textAlignVertical: TextAlignVertical.center,
              style: const TextStyle(color: Color(0xFF202F31), fontSize: 13, fontWeight: FontWeight.w400),
              decoration: InputDecoration(
                isDense: true,
                contentPadding: EdgeInsets.zero,
                hintText: LocaleKeys.findAnEscapeOrAnExperience.tr(),
                hintStyle: const TextStyle(color: Color(0xFF7A8180), fontSize: 13, fontWeight: FontWeight.w400),
                border: InputBorder.none,
              ),
            ),
          ),
          ValueListenableBuilder<TextEditingValue>(
            valueListenable: _searchController,
            builder: (BuildContext context, TextEditingValue value, Widget? child) {
              if (value.text.isEmpty) return const SizedBox.shrink();
              return InkWell(
                borderRadius: BorderRadius.circular(16),
                onTap: () {
                  _searchController.clear();
                  _onSearchChanged("");
                },
                child: const Padding(
                  padding: EdgeInsets.all(4),
                  child: Icon(Icons.clear, size: 18, color: Color(0xFF848486)),
                ),
              );
            },
          ),
        ],
      ),
    );
  }

  int _activeFilterCount() {
    int count = 0;
    if (selectedTypeFilter != 'all') count++;
    if (_filterSortBy != 'newest') count++;
    if (_filterDistance != 'any') count++;
    if (_filterMinDiscount != 'any') count++;
    return count;
  }

  Widget _buildSubcategoriesAndFilterRow(bool isAr) {
    bool showSubcategoriesRow = currentCategoryId.isNotEmpty && currentCategoryId != "all" && (isSubcategoriesLoading || subcategoriesList.isNotEmpty);
    int activeFilterCount = _activeFilterCount();

    return Padding(
      padding: const EdgeInsets.only(top: 14, bottom: 2),
      child: SizedBox(
        height: 38,
        child: Row(
          children: <Widget>[
            Stack(
              clipBehavior: Clip.none,
              children: <Widget>[
                InkWell(
                  borderRadius: BorderRadius.circular(6),
                  onTap: _showFiltersBottomSheet,
                  child: Container(
                    padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
                    alignment: Alignment.center,
                    decoration: BoxDecoration(borderRadius: BorderRadius.circular(6), color: MyColors.lightGreyEAColor),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: <Widget>[
                        SvgPicture.asset("assets/icons/filter_icon.svg", width: 14, height: 14, colorFilter: const ColorFilter.mode(MyColors.black, BlendMode.srcIn)),
                        const SizedBox(width: 5),
                        LocaleKeys.filters.tr().toText12(color: MyColors.black),
                      ],
                    ),
                  ),
                ),
                if (activeFilterCount > 0)
                  PositionedDirectional(
                    top: -5,
                    end: -5,
                    child: Container(
                      width: 18,
                      height: 18,
                      alignment: Alignment.center,
                      decoration: const BoxDecoration(color: MyColors.darkIconColor, shape: BoxShape.circle),
                      child: '$activeFilterCount'.toText10(isBold: true, color: Colors.white),
                    ),
                  ),
              ],
            ),
            if (showSubcategoriesRow) ...<Widget>[
              Container(margin: const EdgeInsets.symmetric(horizontal: 10), width: 1, height: 20, color: const Color(0xFFE2E8F0)),
              Expanded(
                child:
                    isSubcategoriesLoading
                        ? Shimmer.fromColors(
                          baseColor: const Color(0xFFE2E8F0),
                          highlightColor: const Color(0xFFF8FAFC),
                          child: ListView.separated(
                            scrollDirection: Axis.horizontal,
                            physics: const NeverScrollableScrollPhysics(),
                            itemCount: 4,
                            separatorBuilder: (BuildContext _, int __) => const SizedBox(width: 8),
                            itemBuilder: (BuildContext _, int __) => Container(width: 70, height: 32, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(6))),
                          ),
                        )
                        : ListView.separated(
                          scrollDirection: Axis.horizontal,
                          physics: const BouncingScrollPhysics(),
                          itemCount: subcategoriesList.length + 1,
                          separatorBuilder: (BuildContext _, int __) => const SizedBox(width: 8),
                          itemBuilder: (BuildContext context, int index) {
                            bool isAllChip = index == 0;
                            WalaPlusCategoryModel? subcategory = isAllChip ? null : subcategoriesList[index - 1];
                            bool isSelected = isAllChip ? _selectedSubcategoryId == null : _selectedSubcategoryId == subcategory!.id;
                            String label = isAllChip ? LocaleKeys.allCategories.tr() : (subcategory!.name ?? "");

                            return InkWell(
                              borderRadius: BorderRadius.circular(6),
                              onTap: () {
                                setState(() {
                                  _selectedSubcategoryId = isAllChip ? null : (isSelected ? null : subcategory!.id);
                                });
                                fetchOffers(categoryId: _selectedSubcategoryId ?? currentCategoryId);
                              },
                              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: label.toText12(color: isSelected ? MyColors.white : MyColors.black),
                              ),
                            );
                          },
                        ),
              ),
            ],
          ],
        ),
      ),
    );
  }

  void _showCitySelectionBottomSheet() {
    List<String> cities = [
      LocaleKeys.riyadh.tr(),
      AppState().isArabic(context) ? "جدة" : "Jeddah",
      AppState().isArabic(context) ? "الدمام" : "Dammam",
      AppState().isArabic(context) ? "الخبر" : "Khobar",
      AppState().isArabic(context) ? "مكة المكرمة" : "Mecca",
      AppState().isArabic(context) ? "المدينة المنورة" : "Medina",
    ];

    showModalBottomSheet<void>(
      context: context,
      backgroundColor: Colors.transparent,
      builder: (BuildContext sheetContext) {
        return Container(
          padding: const EdgeInsets.fromLTRB(16, 12, 16, 24),
          decoration: const BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
          ),
          child: SafeArea(
            top: false,
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                Container(
                  width: 40,
                  height: 4,
                  margin: const EdgeInsets.only(bottom: 12),
                  decoration: BoxDecoration(color: const Color(0xFFCBD5E1), borderRadius: BorderRadius.circular(2)),
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    LocaleKeys.selectCity.tr().toText16(isBold: true, color: const Color(0xFF1E293B)),
                    InkWell(
                      onTap: () => Navigator.pop(sheetContext),
                      borderRadius: BorderRadius.circular(16),
                      child: const Padding(
                        padding: EdgeInsets.all(4),
                        child: Icon(Icons.close_rounded, size: 20, color: Color(0xFF64748B)),
                      ),
                    ),
                  ],
                ),
                const SizedBox(height: 12),
                ...cities.map((city) {
                  bool isSelected = selectedCity == city;
                  return ListTile(
                    title: city.toText14(isBold: isSelected, color: isSelected ? const Color(0xFF0D9488) : const Color(0xFF1E293B)),
                    trailing: isSelected ? const Icon(Icons.check_rounded, color: Color(0xFF0D9488), size: 20) : null,
                    onTap: () {
                      setState(() {
                        selectedCity = city;
                      });
                      Navigator.pop(sheetContext);
                    },
                  );
                }).toList(),
              ],
            ),
          ),
        );
      },
    );
  }

  // Matches the shared Filters bottom sheet design. All four sections are fully wired to the
  // API: Availability -> WP_Offer_Type (via selectedTypeFilter), Sort by -> WP_Sort_By, Distance
  // -> WP_Radius, Minimum discount -> WP_Min_Discount. "Any"/"All" maps to null (param omitted).
  void _showFiltersBottomSheet() {
    String draftAvailability = selectedTypeFilter;
    String draftSortBy = _filterSortBy;
    String draftDistance = _filterDistance;
    String draftMinDiscount = _filterMinDiscount;

    const Color darkBg = Color(0xFF202B33);
    const Color borderColor = Color(0xFFE2E8F0);

    showModalBottomSheet<void>(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (BuildContext sheetContext) {
        return StatefulBuilder(
          builder: (BuildContext context, StateSetter setSheetState) {
            Widget buildOption(String label, bool isSelected, VoidCallback onTap, {IconData? icon}) {
              return Expanded(
                child: InkWell(
                  borderRadius: BorderRadius.circular(8),
                  onTap: onTap,
                  child: Container(
                    height: 44,
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.circular(8),
                      color: isSelected ? MyColors.lightGreyEAColor : Colors.white,
                      border: Border.all(color: isSelected ? MyColors.lightGreyEAColor : borderColor),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: <Widget>[
                        if (icon != null) ...<Widget>[Icon(icon, size: 14, color: isSelected ? MyColors.black : const Color(0xFF64748B)), const SizedBox(width: 5)],
                        Flexible(child: label.toText13(isBold: true, color: isSelected ? MyColors.black : darkBg, maxlines: 1)),
                        if (isSelected) ...<Widget>[const SizedBox(width: 5), const Icon(Icons.check, size: 14, color: MyColors.black)],
                      ],
                    ),
                  ),
                ),
              );
            }

            Widget sectionHeader(String title, {String? hint}) {
              return Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: <Widget>[title.toText14(isBold: true, color: darkBg), if (hint != null) hint.toText12(color: const Color(0xFF94A3B8))],
              );
            }

            return SafeArea(
              top: false,
              child: Container(
                padding: const EdgeInsets.fromLTRB(20, 12, 20, 20),
                decoration: const BoxDecoration(color: Colors.white, borderRadius: BorderRadius.vertical(top: Radius.circular(24))),
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: <Widget>[
                    Center(
                      child: Container(
                        width: 44,
                        height: 4.5,
                        margin: const EdgeInsets.only(bottom: 16),
                        decoration: BoxDecoration(color: const Color(0xFFCBD5E1), borderRadius: BorderRadius.circular(2.5)),
                      ),
                    ),
                    Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: <Widget>[
                        LocaleKeys.filters.tr().toText20(isBold: true, color: darkBg),
                        InkWell(
                          borderRadius: BorderRadius.circular(16),
                          onTap: () => Navigator.pop(sheetContext),
                          child: Container(
                            width: 32,
                            height: 32,
                            alignment: Alignment.center,
                            decoration: const BoxDecoration(shape: BoxShape.circle, color: Color(0xFFF1F5F9)),
                            child: const Icon(Icons.close, size: 18, color: darkBg),
                          ),
                        ),
                      ],
                    ),
                    20.height,

                    // Availability - single select, drives the real offerType filter.
                    LocaleKeys.availability.tr().toText14(isBold: true, color: darkBg),
                    10.height,
                    Row(
                      children: <Widget>[
                        buildOption(LocaleKeys.allCategories.tr(), draftAvailability == 'all', () => setSheetState(() => draftAvailability = 'all')),
                        const SizedBox(width: 10),
                        buildOption(LocaleKeys.online.tr(), draftAvailability == 'online', () => setSheetState(() => draftAvailability = 'online')),
                        const SizedBox(width: 10),
                        buildOption(LocaleKeys.inStore.tr(), draftAvailability == 'instore', () => setSheetState(() => draftAvailability = 'instore')),
                      ],
                    ),
                    20.height,

                    // Sort by - single select, Nearest and Newest only.
                    LocaleKeys.sortBy.tr().toText14(isBold: true, color: darkBg),
                    10.height,
                    Row(
                      children: <Widget>[
                        buildOption(LocaleKeys.nearest.tr(), draftSortBy == 'nearest', () => setSheetState(() => draftSortBy = 'nearest'), icon: Icons.location_on_outlined),
                        const SizedBox(width: 10),
                        buildOption(LocaleKeys.newest.tr(), draftSortBy == 'newest', () => setSheetState(() => draftSortBy = 'newest')),
                      ],
                    ),
                    20.height,

                    // Distance - single select.
                    sectionHeader(LocaleKeys.distance.tr(), hint: LocaleKeys.fromYourCurrentLocation.tr()),
                    10.height,
                    Row(
                      children: <Widget>[
                        buildOption(LocaleKeys.any.tr(), draftDistance == 'any', () => setSheetState(() => draftDistance = 'any')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.distanceKm.tr(args: <String>['5']), draftDistance == '5km', () => setSheetState(() => draftDistance = '5km')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.distanceKm.tr(args: <String>['10']), draftDistance == '10km', () => setSheetState(() => draftDistance = '10km')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.distanceKm.tr(args: <String>['25']), draftDistance == '25km', () => setSheetState(() => draftDistance = '25km')),
                      ],
                    ),
                    20.height,

                    // Minimum discount - single select.
                    LocaleKeys.minimumDiscount.tr().toText14(isBold: true, color: darkBg),
                    10.height,
                    Row(
                      children: <Widget>[
                        buildOption(LocaleKeys.any.tr(), draftMinDiscount == 'any', () => setSheetState(() => draftMinDiscount = 'any')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.discountPercentPlus.tr(args: <String>['10']), draftMinDiscount == '10', () => setSheetState(() => draftMinDiscount = '10')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.discountPercentPlus.tr(args: <String>['20']), draftMinDiscount == '20', () => setSheetState(() => draftMinDiscount = '20')),
                        const SizedBox(width: 8),
                        buildOption(LocaleKeys.discountPercentPlus.tr(args: <String>['30']), draftMinDiscount == '30', () => setSheetState(() => draftMinDiscount = '30')),
                      ],
                    ),
                    20.height,
                    const Divider(height: 1, thickness: 1, color: borderColor),
                    16.height,

                    Row(
                      children: <Widget>[
                        Expanded(
                          child: DefaultButton(
                            LocaleKeys.reset.tr(),
                            () {
                              setSheetState(() {
                                draftAvailability = 'all';
                                draftSortBy = 'newest';
                                draftDistance = 'any';
                                draftMinDiscount = 'any';
                              });
                              setState(() {
                                selectedTypeFilter = draftAvailability;
                                _filterSortBy = draftSortBy;
                                _filterDistance = draftDistance;
                                _filterMinDiscount = draftMinDiscount;
                              });
                              Navigator.pop(sheetContext);
                              fetchOffers(categoryId: currentCategoryId.isEmpty ? "all" : currentCategoryId);
                            },
                            colors: const <Color>[Colors.white, Colors.white],
                            border: Border.all(color: borderColor),
                            textColor: darkBg,
                          ),
                        ),
                        const SizedBox(width: 12),
                        Expanded(
                          child: DefaultButton(LocaleKeys.applyFilters.tr(), () {
                            setState(() {
                              selectedTypeFilter = draftAvailability;
                              _filterSortBy = draftSortBy;
                              _filterDistance = draftDistance;
                              _filterMinDiscount = draftMinDiscount;
                            });
                            Navigator.pop(sheetContext);
                            fetchOffers(categoryId: _selectedSubcategoryId ?? currentCategoryId);
                          }),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            );
          },
        );
      },
    );
  }

  void showFavoritesBottomSheet() async {
    await showModalBottomSheet<void>(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      elevation: 0,
      builder: (BuildContext sheetContext) {
        return FavoriteMerchantsBottomSheet(categoriesList: categoriesList);
      },
    );
    if (mounted) {
      setState(() {});
    }
  }

  Widget _buildOfferCard(WalaPlusRetailerModel item, bool isAr) {
    return WalaPlusRetailerCard(
      item: item,
      isAr: isAr,
      onTap: () => _openRetailer(item),
      onFavoriteTap: () => _toggleFavorite(item),
    );
  }

  Widget _buildRetailersShimmer() {
    return _buildRetailersShimmerWidget(isTablet);
  }
}

Widget _buildRetailersShimmerWidget(bool isTablet) {
  return Shimmer.fromColors(
    baseColor: const Color(0xFFE2E8F0),
    highlightColor: const Color(0xFFF8FAFC),
    child: GridView.builder(
      shrinkWrap: true,
      physics: const NeverScrollableScrollPhysics(),
      gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: isTablet ? 4 : 2, mainAxisExtent: 235, 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: 120, 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: 6),
              Container(height: 14, width: 80, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(4))),
              const SizedBox(height: 6),
              Row(
                children: <Widget>[
                  Container(height: 28, width: 50, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(6))),
                  const SizedBox(width: 5),
                  Container(height: 28, width: 45, decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.circular(6))),
                ],
              ),
            ],
          ),
        );
      },
    ),
  );
}

class WalaPlusRetailerCard extends StatelessWidget {
  final WalaPlusRetailerModel item;
  final bool isAr;
  final VoidCallback onTap;
  final VoidCallback? onFavoriteTap;

  const WalaPlusRetailerCard({Key? key, required this.item, required this.isAr, required this.onTap, this.onFavoriteTap}) : super(key: key);

  static 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 "";
  }

  static 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;
  }

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

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

  @override
  Widget build(BuildContext context) {
    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();
    }

    List<String> offerTypes = item.normalizedTypes;
    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: onTap,
      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: SingleChildScrollView(
          physics: const NeverScrollableScrollPhysics(),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              ClipRRect(
                borderRadius: BorderRadius.circular(14),
                child: SizedBox(
                  height: 120,
                  width: double.infinity,
                  child: Stack(
                    fit: StackFit.expand,
                    children: [
                      (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)),
                      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])),
                        ),
                      ),
                      if (discountText.isNotEmpty)
                        PositionedDirectional(
                          top: 44,
                          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),
                          ),
                        ),
                      PositionedDirectional(
                        top: 8,
                        end: 8,
                        child: InkWell(
                          borderRadius: BorderRadius.circular(16),
                          onTap: onFavoriteTap,
                          child: Container(
                            width: 30,
                            height: 30,
                            decoration: BoxDecoration(
                              color: Colors.white,
                              shape: BoxShape.circle,
                              boxShadow: [
                                BoxShadow(
                                  color: Colors.black.withOpacity(0.12),
                                  blurRadius: 5,
                                  offset: const Offset(0, 2),
                                ),
                              ],
                            ),
                            alignment: Alignment.center,
                            child: Icon(
                              item.isFavorite == true ? Icons.favorite_rounded : Icons.favorite_border_rounded,
                              size: 17,
                              color: item.isFavorite == true ? const Color(0xFFE52332) : const Color(0xFF1E293B),
                            ),
                          ),
                        ),
                      ),
                      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),
              (item.name ?? "").toText14(isBold: true, maxlines: 1, overflow: TextOverflow.ellipsis, color: const Color(0xFF1E293B)),
              const SizedBox(height: 2),
              offerSubtitle.toText14(maxlines: 1, overflow: TextOverflow.ellipsis, isBold: true, color: const Color(0xFF1E293B)),
              const SizedBox(height: 6),
              SizedBox(
                height: 28,
                child: ListView(
                  scrollDirection: Axis.horizontal,
                  physics: const BouncingScrollPhysics(),
                  children: <Widget>[
                    for (String offerType in offerTypes) ...<Widget>[
                      InfoChipWidget(
                        text: getTypeFilterTitle(offerType),
                        icon: getTypeFilterIcon(offerType),
                        backgroundColor: offerType == 'online' ? const Color(0xFFE6F7F0) : const Color(0xFFEFF6FF),
                        textColor: offerType == 'online' ? const Color(0xFF00A651) : const Color(0xFF2563EB),
                        borderColor: offerType == 'online' ? const Color(0xFF00A651) : const Color(0xFF3B82F6),
                        horizontalPadding: 10,
                        verticalPadding: 5,
                        borderRadius: 12,
                        iconSize: 14,
                      ),
                      const SizedBox(width: 5),
                    ],
                    if (cityText.trim().isNotEmpty) ...<Widget>[
                      InfoChipWidget(
                        text: cityText,
                        icon: Icons.location_on_outlined,
                        backgroundColor: const Color(0xFFF8FAFC),
                        textColor: const Color(0xFF475569),
                        borderColor: const Color(0xFFCBD5E1),
                        horizontalPadding: 10,
                        verticalPadding: 5,
                        borderRadius: 12,
                        iconSize: 14,
                      ),
                      const SizedBox(width: 5),
                    ],
                    if (usageText.trim().isNotEmpty)
                      InfoChipWidget(text: usageText, backgroundColor: const Color(0xFFFEF3C7), textColor: const Color(0xFFB45309), horizontalPadding: 10, verticalPadding: 5, borderRadius: 12),
                  ],
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

class FavoriteMerchantsBottomSheet extends StatefulWidget {
  final List<WalaPlusCategoryModel>? categoriesList;
  const FavoriteMerchantsBottomSheet({Key? key, this.categoriesList}) : super(key: key);

  @override
  State<FavoriteMerchantsBottomSheet> createState() => _FavoriteMerchantsBottomSheetState();
}

class _FavoriteMerchantsBottomSheetState extends State<FavoriteMerchantsBottomSheet> {
  List<WalaPlusRetailerModel> favoriteRetailers = [];
  bool isLoading = true;
  bool isLoadingMore = false;
  bool hasMore = true;
  bool _isFetchingPage = false;
  int currentPage = 1;
  int totalPages = 1;
  final int pageSize = 10;
  String searchQuery = "";
  Timer? _debounceTimer;
  final TextEditingController _searchController = TextEditingController();
  final ScrollController _scrollController = ScrollController();

  @override
  void initState() {
    super.initState();
    _scrollController.addListener(_scrollListener);
    WidgetsBinding.instance.addPostFrameCallback((_) {
      if (mounted) {
        fetchFavorites();
      }
    });
  }

  @override
  void dispose() {
    _debounceTimer?.cancel();
    _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;
    if (currentScroll >= maxScroll - 35) {
      if (!isLoading && !isLoadingMore && !_isFetchingPage && hasMore) {
        fetchNextPage();
      }
    }
  }

  String? _getUserReferenceForFavorites() {
    String ref = OffersAndDiscountsApiClient().resolveUserReference();
    if (ref.trim().isNotEmpty) return ref.trim();
    String? userName = AppState().getUserName;
    if (userName != null && userName.trim().isNotEmpty) return userName.trim();
    return null;
  }

  Future<void> fetchFavorites({String? query}) async {
    if (query != null) {
      searchQuery = query;
    }

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

    try {
      String? queryParam = searchQuery.trim().isNotEmpty ? searchQuery.trim() : null;
      String? userRef = _getUserReferenceForFavorites();
      debugPrint("Fetching favorite retailers: query='$queryParam', userReference='$userRef', page=1, per_page=$pageSize");

      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: "",
        page: 1,
        perPage: pageSize,
        offerType: null,
        query: queryParam,
        sortBy: null,
        radius: null,
        minDiscount: null,
        context: null,
        userReference: userRef,
      );

      favoriteRetailers = response?.retailers ?? <WalaPlusRetailerModel>[];
      for (WalaPlusRetailerModel r in favoriteRetailers) {
        r.isFavorite = true;
      }
      currentPage = 1;
      totalPages = response?.pagesCount ?? 1;
      hasMore = currentPage < totalPages && (response?.retailers?.isNotEmpty ?? false);
    } catch (e) {
      debugPrint("Error fetching favorite retailers: $e");
      favoriteRetailers = <WalaPlusRetailerModel>[];
    } 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? queryParam = searchQuery.trim().isNotEmpty ? searchQuery.trim() : null;
      String? userRef = _getUserReferenceForFavorites();

      debugPrint("Fetching favorite retailers next page: $nextPage of $totalPages, query: '$queryParam', userReference='$userRef'");

      WalaPlusRetailersResponse? response = await OffersAndDiscountsApiClient().getWalaPlusRetailers(
        categoryId: "",
        page: nextPage,
        perPage: pageSize,
        offerType: null,
        query: queryParam,
        sortBy: null,
        radius: null,
        minDiscount: null,
        context: null,
        userReference: userRef,
      );

      List<WalaPlusRetailerModel> newRetailers = response?.retailers ?? <WalaPlusRetailerModel>[];
      if (newRetailers.isNotEmpty) {
        for (WalaPlusRetailerModel r in newRetailers) {
          r.isFavorite = true;
        }
        currentPage = nextPage;
        totalPages = response?.pagesCount ?? totalPages;
        hasMore = currentPage < totalPages;
        favoriteRetailers.addAll(newRetailers);
      } else {
        hasMore = false;
      }
    } catch (e) {
      debugPrint("Error fetching next page of favorite retailers: $e");
    } finally {
      _isFetchingPage = false;
      if (mounted) {
        setState(() {
          isLoadingMore = false;
        });
      }
    }
  }

  void _onSearchChanged(String query) {
    _debounceTimer?.cancel();
    searchQuery = query;
    if (query.trim().isEmpty) {
      fetchFavorites(query: "");
    } else {
      _debounceTimer = Timer(const Duration(milliseconds: 600), () {
        fetchFavorites(query: query.trim());
      });
    }
  }

  Future<void> _toggleFavorite(WalaPlusRetailerModel item) async {
    String retailerId = item.id ?? "";
    if (retailerId.isEmpty) return;

    bool currentFav = item.isFavorite ?? true;
    bool targetFav = !currentFav;

    setState(() {
      item.isFavorite = targetFav;
      if (!targetFav) {
        favoriteRetailers.removeWhere((r) => r.id == item.id);
      }
    });

    try {
      GenericResponseModel? response;
      String? userRef = _getUserReferenceForFavorites();
      if (targetFav) {
        response = await OffersAndDiscountsApiClient().addWalaPlusFavorite(
          retailerId: retailerId,
          context: context,
          userReference: userRef,
        );
      } else {
        response = await OffersAndDiscountsApiClient().removeWalaPlusFavorite(
          retailerId: retailerId,
          context: context,
          userReference: userRef,
        );
      }

      if (response != null && response.errorMessage == null) {
        bool isAr = AppState().isArabic(context);
        String msg = isAr
            ? (targetFav ? LocaleKeys.favoriteAddedSuccess.tr() : LocaleKeys.favoriteRemovedSuccess.tr())
            : (response.wpFavoritesAddRemoveMessage ?? (targetFav ? LocaleKeys.favoriteAddedSuccess.tr() : LocaleKeys.favoriteRemovedSuccess.tr()));
        Utils.showToast(msg, isSuccess: true);
      } else {
        await fetchFavorites(query: _searchController.text);
      }
    } catch (e) {
      debugPrint("Error toggling favorite in bottom sheet: $e");
      await fetchFavorites(query: _searchController.text);
    }
  }

  void _openRetailer(WalaPlusRetailerModel item) async {
    if ((item.categories == null || item.categories!.isEmpty) && widget.categoriesList != null && item.categoryId != null) {
      for (var c in widget.categoriesList!) {
        if (c.id?.toString() == item.categoryId?.toString()) {
          item.categories = [c];
          break;
        }
      }
    }
    await Navigator.pushNamed(context, AppRoutes.walaPlusRetailerDetails, arguments: item);
    if (mounted) {
      await fetchFavorites(query: _searchController.text);
    }
  }

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

    return Container(
      height: MediaQuery.of(context).size.height * 0.85,
      decoration: const BoxDecoration(color: Colors.white, borderRadius: BorderRadius.vertical(top: Radius.circular(24))),
      child: SafeArea(
        top: false,
        child: Padding(
          padding: EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Center(
                child: Container(
                  width: 44,
                  height: 4.5,
                  margin: const EdgeInsets.only(top: 12, bottom: 8),
                  decoration: BoxDecoration(color: const Color(0xFFCBD5E1), borderRadius: BorderRadius.circular(2.5)),
                ),
              ),
              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        LocaleKeys.favoriteOffers.tr().toText18(weight: FontWeight.w600, color: const Color(0xFF1E293B)),
                      ],
                    ),
                    Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        InkWell(
                          borderRadius: BorderRadius.circular(16),
                          onTap: () => Navigator.pop(context),
                          child: Container(
                            width: 32,
                            height: 32,
                            alignment: Alignment.center,
                            decoration: const BoxDecoration(shape: BoxShape.circle, color: Color(0xFFF1F5F9)),
                            child: const Icon(Icons.close_rounded, size: 18, color: Color(0xFF1E293B)),
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                child: 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: _onSearchChanged,
                        onSubmitted: (String val) {
                          _debounceTimer?.cancel();
                          fetchFavorites(query: val.trim());
                        },
                        textInputAction: TextInputAction.search,
                        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,
                          suffixIcon: ValueListenableBuilder<TextEditingValue>(
                            valueListenable: _searchController,
                            builder: (BuildContext context, TextEditingValue value, Widget? child) {
                              if (value.text.isEmpty) return const SizedBox.shrink();
                              return InkWell(
                                child: const Icon(Icons.clear, size: 18, color: Color(0xFF848486)),
                                onTap: () {
                                  _searchController.clear();
                                  _onSearchChanged("");
                                },
                              );
                            },
                          ),
                          suffixIconConstraints: const BoxConstraints(maxWidth: 24, maxHeight: 28),
                        ),
                        style: const TextStyle(color: Color(0xFF2A333C), fontSize: 14, fontWeight: FontWeight.w400),
                      ),
                    ],
                  ),
                ),
              ),
              Expanded(
                child: RefreshIndicator(
                  onRefresh: () => fetchFavorites(query: _searchController.text),
                  color: MyColors.textMixColor,
                  child:
                      isLoading
                          ? Padding(padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8), child: _buildRetailersShimmerWidget(isTablet))
                          : favoriteRetailers.isNotEmpty
                          ? SingleChildScrollView(
                            controller: _scrollController,
                            physics: const AlwaysScrollableScrollPhysics(parent: BouncingScrollPhysics()),
                            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                            child: Column(
                              children: [
                                GridView.builder(
                                  shrinkWrap: true,
                                  physics: const NeverScrollableScrollPhysics(),
                                  gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: isTablet ? 4 : 2, mainAxisExtent: 235, crossAxisSpacing: 12, mainAxisSpacing: 16),
                                  itemCount: favoriteRetailers.length,
                                  itemBuilder: (context, index) {
                                    return WalaPlusRetailerCard(
                                      item: favoriteRetailers[index],
                                      isAr: isAr,
                                      onTap: () => _openRetailer(favoriteRetailers[index]),
                                      onFavoriteTap: () => _toggleFavorite(favoriteRetailers[index]),
                                    );
                                  },
                                ),
                                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)),
                                  ),
                                ],
                                const SizedBox(height: 20),
                              ],
                            ),
                          )
                          : SingleChildScrollView(
                            physics: const AlwaysScrollableScrollPhysics(parent: BouncingScrollPhysics()),
                            child: Padding(padding: const EdgeInsets.only(top: 80), child: Center(child: LocaleKeys.noOffersAvailable.tr().toText14(color: const Color(0xFF64748B)))),
                          ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}