import 'dart:convert';
import 'package:easy_localization/easy_localization.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/models/offers_and_discounts/get_offers_list.dart';
import 'package:mohem_flutter_app/models/offers_and_discounts/wala_plus_category_model.dart';

class WalaPlusRetailersResponse {
  int? page;
  int? pagesCount;
  int? perPage;
  List<WalaPlusRetailerModel>? retailers;
  String? countryNameAr;
  String? countryNameEn;

  WalaPlusRetailersResponse({this.page, this.pagesCount, this.perPage, this.retailers, this.countryNameAr, this.countryNameEn});

  factory WalaPlusRetailersResponse.fromJson(Map<String, dynamic> json) {
    List<WalaPlusRetailerModel> retailersList = [];
    dynamic retailersData = json['retailers'] ?? json['Retailers'] ?? json['data'] ?? json['items'];
    if (retailersData is String) {
      try {
        retailersData = jsonDecode(retailersData);
      } catch (_) {}
    }
    if (retailersData is List) {
      retailersData.forEach((v) {
        if (v is Map<String, dynamic>) {
          retailersList.add(WalaPlusRetailerModel.fromJson(v));
        } else if (v is Map) {
          retailersList.add(WalaPlusRetailerModel.fromJson(Map<String, dynamic>.from(v)));
        }
      });
    }

    return WalaPlusRetailersResponse(
      page: json['page'] is int ? json['page'] : int.tryParse(json['page']?.toString() ?? json['WP_Page']?.toString() ?? '1'),
      pagesCount: json['pages_count'] is int ? json['pages_count'] : int.tryParse(json['pages_count']?.toString() ?? json['pagesCount']?.toString() ?? json['totalPages']?.toString() ?? '1'),
      perPage: json['per_page'] is int ? json['per_page'] : int.tryParse(json['per_page']?.toString() ?? json['perPage']?.toString() ?? json['WP_Per_page']?.toString() ?? '10'),
      retailers: retailersList,
      countryNameAr: WalaPlusRetailerModel.decodeUnicodeString(json['country_name_ar'] ?? json['countryNameAr'] ?? json['country_ar']),
      countryNameEn: WalaPlusRetailerModel.decodeUnicodeString(json['country_name_en'] ?? json['countryNameEn'] ?? json['country_en']),
    );
  }

  Map<String, dynamic> toJson() {
    Map<String, dynamic> data = <String, dynamic>{};
    data['page'] = page;
    data['pages_count'] = pagesCount;
    data['per_page'] = perPage;
    data['country_name_ar'] = countryNameAr;
    data['country_name_en'] = countryNameEn;
    if (retailers != null) {
      data['retailers'] = retailers!.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class WalaPlusRetailersByIDResponse {
  int? page;
  int? pagesCount;
  int? perPage;
  List<WalaPlusRetailerLocation>? locations;
  List<WalaPlusOfferModel>? offers;
  List<WalaPlusRetailerModel>? retailer;

  WalaPlusRetailersByIDResponse({this.page, this.pagesCount, this.perPage, this.locations, this.offers, this.retailer});

  factory WalaPlusRetailersByIDResponse.fromJson(Map<String, dynamic> json) {
    List<WalaPlusRetailerLocation> locList = WalaPlusRetailerModel.parseLocationsList(json['locations'] ?? json['Locations'] ?? json['location'] ?? json['Location']);
    List<WalaPlusOfferModel> offList = WalaPlusRetailerModel.parseOffersList(json['offers'] ?? json['Offers']);
    List<WalaPlusCategoryModel> catList = [];
    dynamic catData = json['categories'] ?? json['Categories'] ?? json['category'] ?? json['Category'];
    if (catData is List) {
      for (var c in catData) {
        if (c is Map<String, dynamic>) {
          catList.add(WalaPlusCategoryModel.fromJson(c));
        } else if (c is Map) {
          catList.add(WalaPlusCategoryModel.fromJson(Map<String, dynamic>.from(c)));
        } else if (c is String && c.trim().isNotEmpty) {
          catList.add(WalaPlusCategoryModel(name: c.trim()));
        }
      }
    } else if (catData is Map) {
      catList.add(WalaPlusCategoryModel.fromJson(Map<String, dynamic>.from(catData)));
    } else if (catData is String && catData.trim().isNotEmpty) {
      catList.add(WalaPlusCategoryModel(name: catData.trim()));
    }

    List<WalaPlusRetailerModel> retList = [];
    dynamic retData = json['retailer'] ?? json['Retailer'];
    if (retData is List) {
      for (var r in retData) {
        if (r is Map<String, dynamic>) {
          var model = WalaPlusRetailerModel.fromJson(r);
          if (model.locations == null || model.locations!.isEmpty) model.locations = locList;
          if (model.offers == null || model.offers!.isEmpty) model.offers = offList;
          if ((model.categories == null || model.categories!.isEmpty) && catList.isNotEmpty) model.categories = catList;
          if ((model.website == null || model.website!.isEmpty || model.website == "null") && (json['website'] != null || json['merchant_website'] != null || json['url'] != null)) {
            model.website = (json['website'] ?? json['merchant_website'] ?? json['url'])?.toString();
          }
          if (model.isFavorite == null && (json.containsKey('isfavorite') || json.containsKey('is_favorite'))) {
            var favVal = json['isfavorite'] ?? json['is_favorite'];
            model.isFavorite = favVal == true || favVal == 1 || favVal == 'true' || favVal == '1';
          }
          retList.add(model);
        } else if (r is Map) {
          var model = WalaPlusRetailerModel.fromJson(Map<String, dynamic>.from(r));
          if (model.locations == null || model.locations!.isEmpty) model.locations = locList;
          if (model.offers == null || model.offers!.isEmpty) model.offers = offList;
          if ((model.categories == null || model.categories!.isEmpty) && catList.isNotEmpty) model.categories = catList;
          if ((model.website == null || model.website!.isEmpty || model.website == "null") && (json['website'] != null || json['merchant_website'] != null || json['url'] != null)) {
            model.website = (json['website'] ?? json['merchant_website'] ?? json['url'])?.toString();
          }
          if (model.isFavorite == null && (json.containsKey('isfavorite') || json.containsKey('is_favorite'))) {
            var favVal = json['isfavorite'] ?? json['is_favorite'];
            model.isFavorite = favVal == true || favVal == 1 || favVal == 'true' || favVal == '1';
          }
          retList.add(model);
        }
      }
    } else if (retData is Map) {
      var model = WalaPlusRetailerModel.fromJson(Map<String, dynamic>.from(retData));
      if (model.locations == null || model.locations!.isEmpty) model.locations = locList;
      if (model.offers == null || model.offers!.isEmpty) model.offers = offList;
      if ((model.categories == null || model.categories!.isEmpty) && catList.isNotEmpty) model.categories = catList;
      if ((model.website == null || model.website!.isEmpty || model.website == "null") && (json['website'] != null || json['merchant_website'] != null || json['url'] != null)) {
        model.website = (json['website'] ?? json['merchant_website'] ?? json['url'])?.toString();
      }
      if (model.isFavorite == null && (json.containsKey('isfavorite') || json.containsKey('is_favorite'))) {
        var favVal = json['isfavorite'] ?? json['is_favorite'];
        model.isFavorite = favVal == true || favVal == 1 || favVal == 'true' || favVal == '1';
      }
      retList.add(model);
    }

    return WalaPlusRetailersByIDResponse(
      page: json['page'] is int ? json['page'] : int.tryParse(json['page']?.toString() ?? json['WP_Page']?.toString() ?? ''),
      pagesCount: json['pages_count'] is int ? json['pages_count'] : int.tryParse(json['pages_count']?.toString() ?? json['pagesCount']?.toString() ?? ''),
      perPage: json['per_page'] is int ? json['per_page'] : int.tryParse(json['per_page']?.toString() ?? json['perPage']?.toString() ?? ''),
      locations: locList,
      offers: offList,
      retailer: retList,
    );
  }

  WalaPlusRetailerModel? get primaryRetailer {
    if (retailer != null && retailer!.isNotEmpty) {
      return retailer!.first;
    }
    return null;
  }

  Map<String, dynamic> toJson() {
    Map<String, dynamic> data = <String, dynamic>{};
    data['page'] = page;
    data['pages_count'] = pagesCount;
    data['per_page'] = perPage;
    if (locations != null) {
      data['locations'] = locations!.map((v) => v.toJson()).toList();
    }
    if (offers != null) {
      data['offers'] = offers!.map((v) => v.toJson()).toList();
    }
    if (retailer != null) {
      data['retailer'] = retailer!.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class WalaPlusRetailerModel {
  String? id;
  String? name;
  String? offerTitle;
  String? offerType;
  String? description;
  String? info;
  String? image;
  String? imageThumb;
  String? logo;
  String? logoThumb;
  String? website;
  String? type;
  dynamic usage;
  dynamic weight;
  dynamic geoId;
  String? pin;
  String? barcodeStandard;
  String? arHowToUse;
  String? enHowToUse;
  String? howToUse;
  WalaPlusRetailerContact? contact;
  dynamic offerWeight;
  List<WalaPlusOfferModel>? offers;
  List<WalaPlusRetailerLocation>? locations;
  List<WalaPlusCategoryModel>? categories;
  String? categoryId;
  String? categoryName;
  String? validity;
  String? validTo;
  String? validUntil;
  String? endDate;
  String? expiryDate;
  String? duration;
  String? email;
  String? phone;
  String? countryNameAr;
  String? countryNameEn;
  bool? isFavorite;

  // Drives the "MAZAYA EXCLUSIVE" badge on the retailer card (Figma node 927:496). NOT parsed
  // from the WalaPlus_Retailers/WalaPlus_RetailersByID API - this is a different, separate
  // "Exclusive" API/section, so callers set this manually on the model after fetching from there.
  bool? isExclusive;

  WalaPlusRetailerModel({
    this.id,
    this.name,
    this.offerTitle,
    this.offerType,
    this.description,
    this.info,
    this.image,
    this.imageThumb,
    this.logo,
    this.logoThumb,
    this.website,
    this.isFavorite,
    this.isExclusive,
    this.type,
    this.usage,
    this.weight,
    this.geoId,
    this.pin,
    this.barcodeStandard,
    this.arHowToUse,
    this.enHowToUse,
    this.howToUse,
    this.contact,
    this.offerWeight,
    this.offers,
    this.locations,
    this.categories,
    this.categoryId,
    this.categoryName,
    this.validity,
    this.validTo,
    this.validUntil,
    this.endDate,
    this.expiryDate,
    this.duration,
    this.email,
    this.phone,
    this.countryNameAr,
    this.countryNameEn,
  });

  static List<WalaPlusOfferModel> parseOffersList(data) {
    List<WalaPlusOfferModel> list = [];
    if (data == null) return list;
    if (data is String) {
      try {
        data = jsonDecode(data);
      } catch (_) {}
    }
    if (data is List) {
      for (var v in data) {
        if (v is Map<String, dynamic>) {
          list.add(WalaPlusOfferModel.fromJson(v));
        } else if (v is Map) {
          list.add(WalaPlusOfferModel.fromJson(Map<String, dynamic>.from(v)));
        }
      }
    }
    return list;
  }

  static List<WalaPlusRetailerLocation> parseLocationsList(data) {
    List<WalaPlusRetailerLocation> list = [];
    if (data == null) return list;
    if (data is String) {
      try {
        data = jsonDecode(data);
      } catch (_) {}
    }
    if (data is List) {
      for (var v in data) {
        if (v is Map<String, dynamic>) {
          list.add(WalaPlusRetailerLocation.fromJson(v));
        } else if (v is Map) {
          list.add(WalaPlusRetailerLocation.fromJson(Map<String, dynamic>.from(v)));
        }
      }
    }
    return list;
  }

  factory WalaPlusRetailerModel.fromJson(Map<String, dynamic> json) {
    Map<String, dynamic> targetJson = json;
    dynamic offersSource = json['offers'] ?? json['Offers'];
    dynamic locationsSource = json['locations'] ?? json['Locations'] ?? json['location'] ?? json['Location'];

    // If json is the wrapper object from WalaPlus_RetailersByID containing 'retailer' key
    if (json['retailer'] != null || json['Retailer'] != null) {
      dynamic retailerData = json['retailer'] ?? json['Retailer'];
      if (retailerData is List && retailerData.isNotEmpty) {
        var first = retailerData.first;
        if (first is Map<String, dynamic>) {
          targetJson = first;
        } else if (first is Map) {
          targetJson = Map<String, dynamic>.from(first);
        }
      } else if (retailerData is Map<String, dynamic>) {
        targetJson = retailerData;
      } else if (retailerData is Map) {
        targetJson = Map<String, dynamic>.from(retailerData);
      }
      if (locationsSource == null || (locationsSource is List && locationsSource.isEmpty)) {
        locationsSource = targetJson['locations'] ?? targetJson['Locations'] ?? targetJson['location'] ?? targetJson['Location'];
      }
      if (offersSource == null || (offersSource is List && offersSource.isEmpty)) {
        offersSource = targetJson['offers'] ?? targetJson['Offers'];
      }
    }

    List<WalaPlusOfferModel> offersList = parseOffersList(offersSource ?? targetJson['offers'] ?? targetJson['Offers']);
    List<WalaPlusRetailerLocation> locationsList = parseLocationsList(locationsSource ?? targetJson['locations'] ?? targetJson['Locations'] ?? targetJson['location'] ?? targetJson['Location']);

    List<WalaPlusCategoryModel> categoriesList = [];
    dynamic rawCats = targetJson['categories'] ?? targetJson['Categories'] ?? targetJson['category'] ?? targetJson['Category'];
    if (rawCats != null && rawCats is List) {
      for (var v in rawCats) {
        if (v is Map<String, dynamic>) {
          categoriesList.add(WalaPlusCategoryModel.fromJson(v));
        } else if (v is Map) {
          categoriesList.add(WalaPlusCategoryModel.fromJson(Map<String, dynamic>.from(v)));
        } else if (v is String && v.trim().isNotEmpty) {
          categoriesList.add(WalaPlusCategoryModel(name: v.trim()));
        }
      }
    } else if (rawCats is Map) {
      categoriesList.add(WalaPlusCategoryModel.fromJson(Map<String, dynamic>.from(rawCats)));
    } else if (rawCats is String && rawCats.toString().trim().isNotEmpty && rawCats.toString().trim() != "null") {
      categoriesList.add(WalaPlusCategoryModel(name: rawCats.toString().trim()));
    }

    String? singleCatName =
        (targetJson['category_name'] ??
                targetJson['categoryName'] ??
                targetJson['cat_name'] ??
                targetJson['catName'] ??
                targetJson['CategoryName'] ??
                targetJson['Category_Name'] ??
                targetJson['category_title'] ??
                targetJson['categoryTitle'])
            ?.toString()
            .trim();
    String? singleCatAr =
        (targetJson['category_name_ar'] ??
                targetJson['categoryNameAr'] ??
                targetJson['cat_name_ar'] ??
                targetJson['catNameAr'] ??
                targetJson['category_ar'] ??
                targetJson['country_name_ar'] ??
                targetJson['countryNameAr'])
            ?.toString()
            .trim();
    String? singleCatEn =
        (targetJson['category_name_en'] ??
                targetJson['categoryNameEn'] ??
                targetJson['cat_name_en'] ??
                targetJson['catNameEn'] ??
                targetJson['category_en'] ??
                targetJson['country_name_en'] ??
                targetJson['countryNameEn'])
            ?.toString()
            .trim();
    String? foundCategoryId =
        (targetJson['category_id'] ?? targetJson['categoryId'] ?? targetJson['cat_id'] ?? targetJson['catId'] ?? targetJson['WP_CategoryID'] ?? targetJson['WP_CategoryId'])?.toString().trim();

    String? rawType = targetJson['type']?.toString().trim();
    String? lowerType = rawType?.toLowerCase();
    bool isTypeStoreKeyword =
        lowerType == null ||
        lowerType.isEmpty ||
        lowerType == 'online' ||
        lowerType == 'instore' ||
        lowerType == 'in_store' ||
        lowerType == 'in store' ||
        lowerType == 'store' ||
        lowerType == 'online,instore' ||
        lowerType == 'instore,online';

    if ((singleCatName == null || singleCatName.isEmpty) && !isTypeStoreKeyword && rawType != null && rawType.isNotEmpty) {
      singleCatName = rawType;
    }

    if (categoriesList.isEmpty) {
      if ((singleCatName != null && singleCatName.isNotEmpty && singleCatName != "null") ||
          (singleCatAr != null && singleCatAr.isNotEmpty && singleCatAr != "null") ||
          (singleCatEn != null && singleCatEn.isNotEmpty && singleCatEn != "null")) {
        categoriesList.add(
          WalaPlusCategoryModel(id: foundCategoryId, name: singleCatName ?? singleCatEn ?? singleCatAr, countryNameAr: singleCatAr ?? singleCatName, countryNameEn: singleCatEn ?? singleCatName),
        );
      }
    }

    WalaPlusRetailerContact? contactObj;
    if (targetJson['contact'] != null) {
      if (targetJson['contact'] is Map) {
        contactObj = WalaPlusRetailerContact.fromJson(Map<String, dynamic>.from(targetJson['contact']));
      } else if (targetJson['contact'] is String && targetJson['contact'].toString().trim().isNotEmpty) {
        contactObj = WalaPlusRetailerContact(website: targetJson['contact'].toString());
      }
    }

    String? foundValidity =
        targetJson['validity']?.toString() ??
        targetJson['valid_to']?.toString() ??
        targetJson['valid_until']?.toString() ??
        targetJson['end_date']?.toString() ??
        targetJson['expiry_date']?.toString() ??
        targetJson['expire_date']?.toString() ??
        targetJson['duration']?.toString() ??
        targetJson['validity_period']?.toString() ??
        targetJson['valid_duration']?.toString() ??
        targetJson['offer_validity']?.toString();

    if (foundValidity == null || foundValidity == "null" || foundValidity.trim().isEmpty) {
      for (var entry in targetJson.entries) {
        String k = entry.key.toLowerCase();
        if ((k.contains('valid') || k.contains('expir') || k.contains('duration')) && !k.contains('isverificationcodevalid') && !k.contains('barcode')) {
          if (entry.value != null && entry.value.toString().trim().isNotEmpty && entry.value.toString() != "null") {
            foundValidity = entry.value.toString().trim();
            break;
          }
        }
      }
    }

    String? foundWebsite =
        targetJson['website']?.toString() ??
        targetJson['merchant_website']?.toString() ??
        targetJson['merchantWebsite']?.toString() ??
        targetJson['website_url']?.toString() ??
        targetJson['websiteUrl']?.toString() ??
        targetJson['web_site']?.toString() ??
        targetJson['url']?.toString() ??
        targetJson['merchant_url']?.toString() ??
        targetJson['merchantUrl']?.toString() ??
        targetJson['merchantLink']?.toString() ??
        targetJson['merchant_link']?.toString() ??
        targetJson['link']?.toString() ??
        contactObj?.website;

    if (foundWebsite == null || foundWebsite.trim().isEmpty || foundWebsite == "null") {
      if (targetJson['merchant'] is Map) {
        var m = targetJson['merchant'];
        foundWebsite = (m['website'] ?? m['merchant_website'] ?? m['url'] ?? m['link'])?.toString();
      }
    }

    if (foundWebsite == null || foundWebsite.trim().isEmpty || foundWebsite == "null") {
      for (var entry in targetJson.entries) {
        String k = entry.key.toLowerCase();
        if ((k.contains('website') || k.contains('web_site') || k == 'url' || k.contains('merchant_url')) && !k.contains('image') && !k.contains('logo')) {
          if (entry.value != null && entry.value.toString().trim().isNotEmpty && entry.value.toString() != "null") {
            foundWebsite = entry.value.toString().trim();
            break;
          }
        }
      }
    }

    bool? parsedIsFavorite;
    if (targetJson.containsKey('isfavorite')) {
      parsedIsFavorite = targetJson['isfavorite'] == true || targetJson['isfavorite'] == 1 || targetJson['isfavorite'] == 'true' || targetJson['isfavorite'] == '1';
    } else if (targetJson.containsKey('is_favorite')) {
      parsedIsFavorite = targetJson['is_favorite'] == true || targetJson['is_favorite'] == 1 || targetJson['is_favorite'] == 'true' || targetJson['is_favorite'] == '1';
    } else if (targetJson.containsKey('isFavorite')) {
      parsedIsFavorite = targetJson['isFavorite'] == true || targetJson['isFavorite'] == 1 || targetJson['isFavorite'] == 'true' || targetJson['isFavorite'] == '1';
    } else if (targetJson.containsKey('favorite')) {
      parsedIsFavorite = targetJson['favorite'] == true || targetJson['favorite'] == 1 || targetJson['favorite'] == 'true' || targetJson['favorite'] == '1';
    }

    return WalaPlusRetailerModel(
      id:
          targetJson['id']?.toString() ??
          targetJson['WP_RetailerID']?.toString() ??
          targetJson['retailer_id']?.toString() ??
          targetJson['RetailerID']?.toString() ??
          targetJson['retailerId']?.toString(),
      name: decodeUnicodeString(targetJson['name']),
      offerTitle: decodeUnicodeString(targetJson['offer_title']),
      offerType: targetJson['offer_type']?.toString(),
      description: decodeUnicodeString(targetJson['description']),
      info: decodeUnicodeString(targetJson['info']),
      image: targetJson['image']?.toString(),
      imageThumb: targetJson['image_thumb']?.toString(),
      logo: targetJson['logo']?.toString(),
      logoThumb: targetJson['logo_thumb']?.toString(),
      website: foundWebsite,
      isFavorite: parsedIsFavorite,
      type: targetJson['type']?.toString(),
      usage: targetJson['usage'] is String ? decodeUnicodeString(targetJson['usage']) : targetJson['usage'],
      weight: targetJson['weight'],
      geoId: targetJson['geo_id'],
      pin: targetJson['pin']?.toString(),
      barcodeStandard: targetJson['barcode_standard']?.toString(),
      arHowToUse: decodeUnicodeString(targetJson['ar_how_to_use']),
      enHowToUse: decodeUnicodeString(targetJson['en_how_to_use']),
      howToUse: decodeUnicodeString(targetJson['how_to_use']),
      contact: contactObj,
      offerWeight: targetJson['offer_weight'],
      offers: offersList,
      locations: locationsList,
      categories: categoriesList,
      categoryId: foundCategoryId,
      categoryName: singleCatName ?? singleCatEn ?? singleCatAr,
      validity: foundValidity,
      validTo: targetJson['valid_to']?.toString() ?? targetJson['validTo']?.toString(),
      validUntil: targetJson['valid_until']?.toString() ?? targetJson['validUntil']?.toString(),
      endDate: targetJson['end_date']?.toString() ?? targetJson['endDate']?.toString(),
      expiryDate: targetJson['expiry_date']?.toString() ?? targetJson['expiryDate']?.toString(),
      duration: targetJson['duration']?.toString(),
      email: targetJson['email']?.toString() ?? targetJson['contact_email']?.toString() ?? contactObj?.primaryEmail,
      phone: targetJson['phone']?.toString() ?? targetJson['contact_phone']?.toString() ?? targetJson['mobile']?.toString() ?? contactObj?.primaryPhone,
      countryNameAr: decodeUnicodeString(targetJson['country_name_ar'] ?? targetJson['countryNameAr'] ?? targetJson['country_ar']),
      countryNameEn: decodeUnicodeString(targetJson['country_name_en'] ?? targetJson['countryNameEn'] ?? targetJson['country_en']),
    );
  }

  // Adapter for the Mazaya "Exclusive Offers" section, which reuses the legacy Offers &
  // Discounts (ITG) API/implementation (lib/ui/screens/offers_and_discounts) rather than a
  // WalaPlus endpoint. Maps whatever overlaps onto this model so the existing grid/card/detail
  // screen can render it unchanged - fields with no equivalent on OffersListModel (favorite,
  // redeem, locations, contact, ...) are simply left null, and isExclusive hides the actions
  // that depend on them (see WalaPlusRetailerCard, RetailerDetailsScreen).
  factory WalaPlusRetailerModel.fromExclusiveOffer(OffersListModel offer, {bool isAr = false}) {
    String? name = decodeUnicodeString(isAr ? (offer.titleAr ?? offer.titleEn) : (offer.titleEn ?? offer.titleAr));
    String? description = decodeUnicodeString(isAr ? (offer.descriptionAr ?? offer.descriptionEn) : (offer.descriptionEn ?? offer.descriptionAr));
    String? categoryName = decodeUnicodeString(isAr ? (offer.categoryNameAr ?? offer.categoryNameEn) : (offer.categoryNameEn ?? offer.categoryNameAr));
    String? discountText = _formatExclusiveDiscountText(decodeUnicodeString(offer.discountDescription) ?? decodeUnicodeString(offer.discount));
    return WalaPlusRetailerModel(
      id: "exclusive-${offer.offersDiscountId ?? ''}",
      name: name,
      // WalaPlusRetailerCard reads offerTitle as the promo subtitle shown under the name (e.g.
      // "20% off") - the discount text is the closest equivalent on a legacy offer.
      offerTitle: discountText,
      description: description,
      info: description,
      image: offer.bannerImage,
      logo: offer.logo,
      website: offer.websiteUrl,
      endDate: offer.endDate,
      validTo: offer.endDate,
      categoryName: categoryName,
      categories: categoryName != null ? <WalaPlusCategoryModel>[WalaPlusCategoryModel(name: categoryName)] : null,
      isExclusive: true,
    );
  }

  // The legacy Offers & Discounts API sometimes returns a bare number ("10", "20") for its
  // discount fields rather than a formatted "10% off" string. WalaPlusRetailerCard's badge
  // logic (getDiscountBadge) only recognizes a "<digits>%" pattern, so a bare number would
  // otherwise render verbatim instead of as a discount. Already-formatted text (containing "%",
  // "off", or "خصم") is left untouched.
  static String? _formatExclusiveDiscountText(String? raw) {
    if (raw == null) return null;
    String trimmed = raw.trim();
    if (trimmed.isEmpty) return null;
    if (trimmed.contains('%') || trimmed.toLowerCase().contains('off') || trimmed.contains('خصم')) {
      return trimmed;
    }
    if (RegExp(r'^\d+(\.\d+)?$').hasMatch(trimmed)) {
      return LocaleKeys.offDiscount.tr(args: ['$trimmed%']);
    }
    return trimmed;
  }

  static String? decodeUnicodeString(Object? val) {
    if (val == null) return null;
    String s = val.toString().trim();
    if (s.isEmpty || s == "null") return null;

    while ((s.startsWith('"') && s.endsWith('"')) || (s.startsWith("'") && s.endsWith("'"))) {
      if (s.length >= 2) {
        s = s.substring(1, s.length - 1).trim();
      } else {
        break;
      }
    }

    s = s.replaceAll(r'\/', '/').replaceAll(r'\"', '"').replaceAll(r"\'", "'");

    s = s.replaceAllMapped(RegExp(r'\\u([0-9a-fA-F]{4})'), (match) {
      try {
        var codeUnit = int.parse(match.group(1)!, radix: 16);
        return String.fromCharCode(codeUnit);
      } catch (_) {
        return match.group(0)!;
      }
    });

    s = s
        .replaceAll(r'\u201c', '“')
        .replaceAll(r'\u201d', '”')
        .replaceAll(r'\u2019', '’')
        .replaceAll(r'\u2018', '‘')
        .replaceAll(r'\u00a0', ' ')
        .replaceAll(r'\u2022', '•')
        .replaceAll(r'\u2013', '–')
        .replaceAll(r'\u2014', '—')
        .replaceAll(r'\u200f', '')
        .replaceAll(r'\u200e', '')
        .replaceAll(r'\u061f', '؟')
        .replaceAll(r'\u201', '“')
        .replaceAll('&quot;', '"')
        .replaceAll('&apos;', "'")
        .replaceAll('&#39;', "'")
        .replaceAll('&nbsp;', ' ')
        .replaceAll('&amp;', '&');

    return s;
  }

  Map<String, dynamic> toJson() {
    Map<String, dynamic> data = <String, dynamic>{};
    data['id'] = id;
    data['name'] = name;
    data['offer_title'] = offerTitle;
    data['offer_type'] = offerType;
    data['description'] = description;
    data['info'] = info;
    data['image'] = image;
    data['image_thumb'] = imageThumb;
    data['logo'] = logo;
    data['logo_thumb'] = logoThumb;
    data['website'] = website;
    data['type'] = type;
    data['usage'] = usage;
    data['weight'] = weight;
    data['geo_id'] = geoId;
    data['pin'] = pin;
    data['barcode_standard'] = barcodeStandard;
    data['ar_how_to_use'] = arHowToUse;
    data['en_how_to_use'] = enHowToUse;
    data['how_to_use'] = howToUse;
    data['contact'] = contact?.toJson();
    data['offer_weight'] = offerWeight;
    data['validity'] = validity;
    data['valid_to'] = validTo;
    data['valid_until'] = validUntil;
    data['end_date'] = endDate;
    data['expiry_date'] = expiryDate;
    data['duration'] = duration;
    data['email'] = email;
    data['phone'] = phone;
    data['country_name_ar'] = countryNameAr;
    data['country_name_en'] = countryNameEn;
    data['is_favorite'] = isFavorite;
    data['isfavorite'] = isFavorite;
    data['is_exclusive'] = isExclusive;
    if (offers != null) {
      data['offers'] = offers!.map((v) => v.toJson()).toList();
    }
    if (locations != null) {
      data['locations'] = locations!.map((v) => v.toJson()).toList();
    }
    if (categories != null) {
      data['categories'] = categories!.map((v) => v.toJson()).toList();
    }
    data['category_id'] = categoryId;
    data['category_name'] = categoryName;
    return data;
  }

  String? getDisplayCategory({bool isAr = false, List<WalaPlusCategoryModel>? fallbackCategories}) {
    if (categories != null && categories!.isNotEmpty) {
      for (var cat in categories!) {
        String? primary = isAr ? cat.countryNameAr : cat.countryNameEn;
        String? secondary = isAr ? (cat.name ?? cat.countryNameEn) : (cat.name ?? cat.countryNameAr);
        String? resolved =
            (primary != null && primary.trim().isNotEmpty && primary != "null") ? primary.trim() : (secondary != null && secondary.trim().isNotEmpty && secondary != "null" ? secondary.trim() : null);
        if (resolved != null && resolved.isNotEmpty) {
          return resolved;
        }
      }
    }
    if (categoryName != null && categoryName!.trim().isNotEmpty && categoryName != "null") {
      return categoryName!.trim();
    }
    if (fallbackCategories != null && categoryId != null && categoryId!.trim().isNotEmpty) {
      for (var cat in fallbackCategories) {
        if (cat.id?.toString() == categoryId?.toString()) {
          String? primary = isAr ? cat.countryNameAr : cat.countryNameEn;
          String? secondary = isAr ? (cat.name ?? cat.countryNameEn) : (cat.name ?? cat.countryNameAr);
          String? resolved =
              (primary != null && primary.trim().isNotEmpty && primary != "null")
                  ? primary.trim()
                  : (secondary != null && secondary.trim().isNotEmpty && secondary != "null" ? secondary.trim() : null);
          if (resolved != null && resolved.isNotEmpty) {
            return resolved;
          }
        }
      }
    }
    if (type != null && type!.trim().isNotEmpty) {
      String lt = type!.trim().toLowerCase();
      if (lt != 'online' && lt != 'instore' && lt != 'store' && lt != 'in_store') {
        return type!.trim();
      }
    }
    return null;
  }

  String? get displayImage {
    if (image != null && image!.trim().isNotEmpty && image != "null") return image!.trim();
    if (imageThumb != null && imageThumb!.trim().isNotEmpty && imageThumb != "null") return imageThumb!.trim();
    return null;
  }

  String? get displayLogo {
    if (logo != null && logo!.trim().isNotEmpty && logo != "null") return logo!.trim();
    if (logoThumb != null && logoThumb!.trim().isNotEmpty && logoThumb != "null") return logoThumb!.trim();
    return null;
  }

  String? get resolvedWebsite {
    if (website != null && website!.trim().isNotEmpty && website != "null") {
      return website!.trim();
    }
    if (contact?.website != null && contact!.website!.trim().isNotEmpty && contact!.website != "null") {
      return contact!.website!.trim();
    }
    return null;
  }

  bool get hasPhysicalLocation {
    if (locations != null && locations!.isNotEmpty) {
      for (var loc in locations!) {
        if ((loc.cityNameEn != null && loc.cityNameEn!.trim().isNotEmpty && loc.cityNameEn != "null") ||
            (loc.cityNameAr != null && loc.cityNameAr!.trim().isNotEmpty && loc.cityNameAr != "null") ||
            (loc.city != null && loc.city!.trim().isNotEmpty && loc.city != "null")) {
          return true;
        }
      }
    }
    return false;
  }

  // Resolves a single location's city using the same 3-pass priority this used to apply
  // globally: specific city name first, then a non-generic-country city, then any city at all.
  String? _resolveLocationCity(WalaPlusRetailerLocation loc, bool isAr) {
    String? cName = isAr ? loc.cityNameAr : loc.cityNameEn;
    if (cName != null && cName.trim().isNotEmpty && cName != "null") {
      return cName.trim();
    }
    if (loc.city != null && loc.city!.trim().isNotEmpty && loc.city != "null") {
      String c = loc.city!.trim();
      if (c.toLowerCase() != 'saudi arabia' && c != 'المملكة العربية السعودية') {
        return c;
      }
    }
    if (loc.city != null && loc.city!.trim().isNotEmpty && loc.city != "null") {
      return loc.city!.trim();
    }
    return null;
  }

  // Multiple distinct cities across this retailer's locations -> "Multiple Cities" instead of
  // just picking the first one found, so the badge doesn't silently hide the other branches.
  String getDisplayCity({bool isAr = false}) {
    if (locations == null || locations!.isEmpty) return '';

    Set<String> distinctCities = <String>{};
    for (var loc in locations!) {
      String? resolved = _resolveLocationCity(loc, isAr);
      if (resolved != null) distinctCities.add(resolved);
    }

    if (distinctCities.isEmpty) return '';
    if (distinctCities.length > 1) return LocaleKeys.multipleCities.tr();
    return distinctCities.first;
  }

  String get displayCity => getDisplayCity(isAr: false);

  String get displayUsage {
    if (usage != null) {
      String u = usage.toString().trim();
      if (int.tryParse(u) != null) {
        return 'usage:$u';
      }
      if (!u.contains('<') && !u.contains('{') && u.isNotEmpty && u.length <= 12 && u.toLowerCase() != 'online' && u.toLowerCase() != 'store') {
        return 'usage:$u';
      }
    }
    return '';
  }

  String getDisplayValidity({bool isAr = false}) {
    if (validity != null && validity!.trim().isNotEmpty && validity != "null") {
      return validity!.trim();
    }
    if (validTo != null && validTo!.trim().isNotEmpty && validTo != "null") {
      return validTo!.trim();
    }
    if (validUntil != null && validUntil!.trim().isNotEmpty && validUntil != "null") {
      return validUntil!.trim();
    }
    if (endDate != null && endDate!.trim().isNotEmpty && endDate != "null") {
      return endDate!.trim();
    }
    if (expiryDate != null && expiryDate!.trim().isNotEmpty && expiryDate != "null") {
      return expiryDate!.trim();
    }
    if (duration != null && duration!.trim().isNotEmpty && duration != "null") {
      return duration!.trim();
    }
    return LocaleKeys.offerValid.tr();
  }

  String? get resolvedEmail {
    if (email != null && email!.trim().isNotEmpty && email != "null") {
      return email!.trim();
    }
    if (contact?.primaryEmail != null && contact!.primaryEmail!.trim().isNotEmpty && contact!.primaryEmail != "null") {
      return contact!.primaryEmail!.trim();
    }
    if (locations != null && locations!.isNotEmpty) {
      for (var loc in locations!) {
        if (loc.contact != null && loc.contact!.contains('@')) {
          return loc.contact!.trim();
        }
      }
    }
    String combined = "${description ?? ''} ${info ?? ''} ${howToUse ?? ''} ${arHowToUse ?? ''} ${enHowToUse ?? ''}";
    RegExp emailRegex = RegExp(r'[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}');
    Match? match = emailRegex.firstMatch(combined);
    if (match != null) {
      return match.group(0);
    }
    return null;
  }

  String? get resolvedPhone {
    if (phone != null && phone!.trim().isNotEmpty && phone != "null") {
      return phone!.trim();
    }
    if (contact?.primaryPhone != null && contact!.primaryPhone!.trim().isNotEmpty && contact!.primaryPhone != "null") {
      return contact!.primaryPhone!.trim();
    }
    if (locations != null && locations!.isNotEmpty) {
      for (var loc in locations!) {
        if (loc.contact != null && loc.contact!.trim().isNotEmpty && loc.contact != "null" && !loc.contact!.contains('@')) {
          return loc.contact!.trim();
        }
      }
    }
    String combined = "${description ?? ''} ${info ?? ''} ${howToUse ?? ''} ${arHowToUse ?? ''} ${enHowToUse ?? ''}";
    RegExp phoneRegex = RegExp(r'(?:\+?966|0)?(?:5\d{8}|1\d{7}|9200\d{5}|800\d{6,7})');
    Match? match = phoneRegex.firstMatch(combined);
    if (match != null) {
      return match.group(0);
    }
    return null;
  }

  // type can be a comma-separated combo (e.g. "online,instore") when a retailer offers both -
  // this splits and normalizes every part instead of only ever matching a single exact value,
  // so a combined retailer is correctly recognized as both rather than neither/just one.
  List<String> get normalizedTypes {
    Set<String> result = <String>{};
    if (type != null && type!.trim().isNotEmpty) {
      for (String part in type!.split(',')) {
        String t = part.trim().toLowerCase();
        if (t.isEmpty) continue;
        if (t == 'online') {
          result.add('online');
        } else if (t == 'instore' || t == 'in_store' || t == 'in store' || t == 'store') {
          result.add('instore');
        } else {
          // Non-online types (e.g. category names like "Physiotherapy") represent
          // in-store merchants/services that require physical presence.
          result.add('instore');
        }
      }
    }
    if (locations != null && locations!.isNotEmpty) {
      result.add('instore');
    }
    if (result.isEmpty && hasPhysicalLocation) {
      result.add('instore');
    }
    return result.toList();
  }

  bool get isOnlineStore => normalizedTypes.contains('online');

  bool get isInstore => normalizedTypes.contains('instore');

  // Kept for any existing single-value callers - returns the first normalized type found.
  String? get normalizedType {
    List<String> types = normalizedTypes;
    return types.isEmpty ? null : types.first;
  }

  String _displayTypeLabel(String norm) {
    if (norm == 'online') return LocaleKeys.online.tr();
    return LocaleKeys.inStore.tr();
  }

  String? getDisplayType() {
    List<String> types = normalizedTypes;
    if (types.isNotEmpty) return _displayTypeLabel(types.first);
    return null;
  }

  // One label per distinct type (e.g. ["Online", "In Store"]) - used to render a separate chip
  // for each, instead of collapsing a dual-type retailer down to a single badge.
  List<String> getDisplayTypes() {
    List<String> types = normalizedTypes;
    if (types.isNotEmpty) return types.map(_displayTypeLabel).toList();
    return <String>[];
  }
}

class WalaPlusRetailerContact {
  String? email;
  List<String>? emails;
  String? phone;
  List<String>? phones;
  String? website;
  String? address;
  String? instagram;
  String? twitter;

  WalaPlusRetailerContact({this.email, this.emails, this.phone, this.phones, this.website, this.address, this.instagram, this.twitter});

  factory WalaPlusRetailerContact.fromJson(Map<String, dynamic> json) {
    List<String> emailsList = [];
    if (json['emails'] != null && json['emails'] is List) {
      json['emails'].forEach((v) => emailsList.add(v.toString()));
    }
    String? singleEmail = json['email']?.toString() ?? json['email_address']?.toString();
    if (singleEmail != null && singleEmail.trim().isNotEmpty && singleEmail != "null") {
      if (!emailsList.contains(singleEmail.trim())) {
        emailsList.add(singleEmail.trim());
      }
    }

    List<String> phonesList = [];
    if (json['phones'] != null && json['phones'] is List) {
      json['phones'].forEach((v) => phonesList.add(v.toString()));
    }
    String? singlePhone = json['phone']?.toString() ?? json['mobile']?.toString() ?? json['phone_number']?.toString();
    if (singlePhone != null && singlePhone.trim().isNotEmpty && singlePhone != "null") {
      if (!phonesList.contains(singlePhone.trim())) {
        phonesList.add(singlePhone.trim());
      }
    }

    return WalaPlusRetailerContact(
      email: singleEmail,
      emails: emailsList,
      phone: singlePhone,
      phones: phonesList,
      website: WalaPlusRetailerModel.decodeUnicodeString(json['website']),
      address: WalaPlusRetailerModel.decodeUnicodeString(json['address']),
      instagram: json['instagram']?.toString(),
      twitter: json['twitter']?.toString(),
    );
  }

  Map<String, dynamic> toJson() {
    return {'email': email, 'emails': emails, 'phone': phone, 'phones': phones, 'website': website, 'address': address, 'instagram': instagram, 'twitter': twitter};
  }

  String? get primaryEmail {
    if (email != null && email!.trim().isNotEmpty && email != "null") return email!.trim();
    if (emails != null && emails!.isNotEmpty) {
      for (var e in emails!) {
        if (e.trim().isNotEmpty && e != "null") return e.trim();
      }
    }
    return null;
  }

  String? get primaryPhone {
    if (phone != null && phone!.trim().isNotEmpty && phone != "null") return phone!.trim();
    if (phones != null && phones!.isNotEmpty) {
      for (var p in phones!) {
        if (p.trim().isNotEmpty && p != "null") return p.trim();
      }
    }
    return null;
  }
}

class WalaPlusRetailerLocation {
  dynamic id;
  String? address;
  String? city;
  String? cityNameAr;
  String? cityNameEn;
  String? contact;
  String? countryNameAr;
  String? countryNameEn;
  String? distance;
  double? latitude;
  double? longitude;
  dynamic placeId;

  WalaPlusRetailerLocation({
    this.id,
    this.address,
    this.city,
    this.cityNameAr,
    this.cityNameEn,
    this.contact,
    this.countryNameAr,
    this.countryNameEn,
    this.distance,
    this.latitude,
    this.longitude,
    this.placeId,
  });

  factory WalaPlusRetailerLocation.fromJson(Map<String, dynamic> json) {
    return WalaPlusRetailerLocation(
      id: json['id'],
      address: WalaPlusRetailerModel.decodeUnicodeString(json['address']),
      city: WalaPlusRetailerModel.decodeUnicodeString(json['city']),
      cityNameAr: WalaPlusRetailerModel.decodeUnicodeString(json['city_name_ar']),
      cityNameEn: WalaPlusRetailerModel.decodeUnicodeString(json['city_name_en']),
      contact: json['contact']?.toString(),
      countryNameAr: WalaPlusRetailerModel.decodeUnicodeString(json['country_name_ar']),
      countryNameEn: WalaPlusRetailerModel.decodeUnicodeString(json['country_name_en']),
      distance: WalaPlusRetailerModel.decodeUnicodeString(json['distance']),
      latitude: json['latitude'] is num ? (json['latitude'] as num).toDouble() : double.tryParse(json['latitude']?.toString() ?? ''),
      longitude: json['longitude'] is num ? (json['longitude'] as num).toDouble() : double.tryParse(json['longitude']?.toString() ?? ''),
      placeId: json['place_id'],
    );
  }

  Map<String, dynamic> toJson() {
    Map<String, dynamic> data = <String, dynamic>{};
    data['id'] = id;
    data['address'] = address;
    data['city'] = city;
    data['city_name_ar'] = cityNameAr;
    data['city_name_en'] = cityNameEn;
    data['contact'] = contact;
    data['country_name_ar'] = countryNameAr;
    data['country_name_en'] = countryNameEn;
    data['distance'] = distance;
    data['latitude'] = latitude;
    data['longitude'] = longitude;
    data['place_id'] = placeId;
    return data;
  }

  // distance comes from the API as a raw numeric string (e.g. "14.729670498669968") -
  // round to max 2 decimal places and append the localized "KM Away" label.
  String? getDisplayDistance() {
    if (distance == null) return null;
    double? km = double.tryParse(distance!.trim());
    if (km == null) return null;
    String formatted = km.toStringAsFixed(2);
    return LocaleKeys.kmAway.tr(args: [formatted]);
  }

  String getLocalizedCity(bool isAr) {
    if (isAr) {
      if (cityNameAr != null && cityNameAr!.trim().isNotEmpty && cityNameAr != "null") {
        return cityNameAr!.trim();
      }
    } else {
      if (cityNameEn != null && cityNameEn!.trim().isNotEmpty && cityNameEn != "null") {
        return cityNameEn!.trim();
      }
    }
    if (city != null && city!.trim().isNotEmpty && city != "null") {
      return city!.trim();
    }
    return isAr ? (cityNameAr ?? "") : (cityNameEn ?? "");
  }

  String getLocalizedCountry(bool isAr) {
    if (isAr) {
      if (countryNameAr != null && countryNameAr!.trim().isNotEmpty && countryNameAr != "null") {
        return countryNameAr!.trim();
      }
    } else {
      if (countryNameEn != null && countryNameEn!.trim().isNotEmpty && countryNameEn != "null") {
        return countryNameEn!.trim();
      }
    }
    return "";
  }
}

class WalaPlusOfferModel {
  String? id;
  String? retailerId;
  String? title;
  String? image;
  String? imageThumb;
  String? type;
  String? description;
  dynamic price;
  dynamic usage;
  String? expiredAt;

  WalaPlusOfferModel({this.id, this.retailerId, this.title, this.image, this.imageThumb, this.type, this.description, this.price, this.usage, this.expiredAt});

  factory WalaPlusOfferModel.fromJson(Map<String, dynamic> json) {
    return WalaPlusOfferModel(
      id: json['id']?.toString(),
      retailerId: (json['retailer_id'] ?? json['retailerId'] ?? json['retailerID'])?.toString(),
      title: WalaPlusRetailerModel.decodeUnicodeString(json['title']),
      image: json['image']?.toString(),
      imageThumb: (json['image_thumb'] ?? json['imageThumb'])?.toString(),
      type: json['type']?.toString(),
      description: WalaPlusRetailerModel.decodeUnicodeString(json['description']),
      price: json['price'],
      usage: json['usage'],
      expiredAt: (json['expired_at'] ?? json['expiredAt'] ?? json['expiry_date'])?.toString(),
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'id': id,
      'retailer_id': retailerId,
      'title': title,
      'image': image,
      'image_thumb': imageThumb,
      'type': type,
      'description': description,
      'price': price,
      'usage': usage,
      'expired_at': expiredAt,
    };
  }

  String? get displayImage {
    if (image != null && image!.trim().isNotEmpty && image != "null") return image!.trim();
    if (imageThumb != null && imageThumb!.trim().isNotEmpty && imageThumb != "null") return imageThumb!.trim();
    return null;
  }
}