optional language parameter added to requests, fixed getCouponSets, getCouponsUniversal

@@ -1582,10 +1582,13 @@ public final class WarplySDK {
     // MARK: - Campaigns
     
     /// Get campaigns with filters
-    public func getCampaigns(language: String, filters: [String: Any] = [:], completion: @escaping ([CampaignItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+    public func getCampaigns(language: String? = nil, filters: [String: Any] = [:], completion: @escaping ([CampaignItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+        // Handle language default inside the method
+        let finalLanguage = language ?? self.applicationLocale
+        
         Task {
             do {
-                let endpoint = Endpoint.getCampaigns(language: language, filters: filters)
+                let endpoint = Endpoint.getCampaigns(language: finalLanguage, filters: filters)
                 let response = try await networkService.requestRaw(endpoint)
                 
                 var campaignsArray: [CampaignItemModel] = []
@@ -1687,10 +1690,13 @@ public final class WarplySDK {
     }
     
     /// Get personalized campaigns
-    public func getCampaignsPersonalized(language: String, filters: [String: Any] = [:], completion: @escaping ([CampaignItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+    public func getCampaignsPersonalized(language: String? = nil, filters: [String: Any] = [:], completion: @escaping ([CampaignItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+        // Handle language default inside the method
+        let finalLanguage = language ?? self.applicationLocale
+        
         Task {
             do {
-                let endpoint = Endpoint.getCampaignsPersonalized(language: language, filters: filters)
+                let endpoint = Endpoint.getCampaignsPersonalized(language: finalLanguage, filters: filters)
                 let response = try await networkService.requestRaw(endpoint)
                 
                 var campaignsArray: [CampaignItemModel] = []
@@ -1913,7 +1919,9 @@ public final class WarplySDK {
     // MARK: - Coupons
     
     /// Get coupons
-    public func getCoupons(language: String, completion: @escaping ([CouponItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+    public func getCoupons(language: String? = nil, completion: @escaping ([CouponItemModel]?) -> Void, failureCallback: @escaping (Int) -> Void) {
+        // Handle language default inside the method
+        let finalLanguage = language ?? self.applicationLocale
         // First get merchants
         // getMultilingualMerchants(categories: [], defaultShown: false, center: 0.0, tags: [], uuid: "", distance: 0, parentUuids: []) { merchantsData in
         //     if let merchantsData = merchantsData {
@@ -1963,12 +1971,17 @@ public final class WarplySDK {
                             self.setAllOldCouponList(couponsArray)
                             
                             // Filter out supermarket coupons
-                            let noSMCoupons = couponsArray.filter { $0.couponset_data?.couponset_type != "supermarket" }
+                            // let noSMCoupons = couponsArray.filter { $0.couponset_data?.couponset_type != "supermarket" }
+                            
+                            // self.setCouponList(noSMCoupons)
+                            // self.setOldCouponList(noSMCoupons)
+                            
+                            // var activeCoupons = noSMCoupons.filter { $0.status == 1 }
 
-                            self.setCouponList(noSMCoupons)
-                            self.setOldCouponList(noSMCoupons)
+                            self.setCouponList(couponsArray)
+                            self.setOldCouponList(couponsArray)
                             
-                            var activeCoupons = noSMCoupons.filter { $0.status == 1 }
+                            var activeCoupons = couponsArray.filter { $0.status == 1 }
                             
                             // Sort active coupons by expiration date
                             let dateFormatter = DateFormatter()
@@ -2013,10 +2026,17 @@ public final class WarplySDK {
     }
     
     /// Get coupon sets
-    public func getCouponSets(completion: @escaping ([CouponSetItemModel]?) -> Void) {
+    public func getCouponSets(
+        language: String? = nil,
+        completion: @escaping ([CouponSetItemModel]?) -> Void,
+        failureCallback: @escaping (Int) -> Void
+    ) {
+        // Handle language default inside the method
+        let finalLanguage = language ?? self.applicationLocale
+        
         Task {
             do {
-                let endpoint = Endpoint.getCouponSets(active: true, visible: true, uuids: nil)
+                let endpoint = Endpoint.getCouponSets(language: finalLanguage, active: true, visible: true, uuids: nil)
                 let response = try await networkService.requestRaw(endpoint)
                 
                 var couponSetsArray: [CouponSetItemModel] = []
@@ -2044,9 +2064,13 @@ public final class WarplySDK {
                     let dynatraceEvent = LoyaltySDKDynatraceEventModel()
                     dynatraceEvent._eventName = "custom_error_couponset_loyalty"
                     dynatraceEvent._parameters = nil
-                    SwiftEventBus.post("dynatrace", sender: dynatraceEvent)
+                    self.postFrameworkEvent("dynatrace", sender: dynatraceEvent)
                     
-                    completion(nil)
+                    if let networkError = error as? NetworkError {
+                        failureCallback(networkError.code)
+                    } else {
+                        failureCallback(-1)
+                    }
                 }
             }
         }
@@ -2116,17 +2140,20 @@ public final class WarplySDK {
     }
     
     /// Get coupon sets (async/await variant)
+    /// - Parameter language: Language code for localized content (optional, defaults to applicationLocale)
     /// - Returns: Array of coupon set models
     /// - Throws: WarplyError if the request fails
-    public func getCouponSets() async throws -> [CouponSetItemModel] {
+    public func getCouponSets(language: String? = nil) async throws -> [CouponSetItemModel] {
         return try await withCheckedThrowingContinuation { continuation in
-            getCouponSets { couponSets in
+            getCouponSets(language: language, completion: { couponSets in
                 if let couponSets = couponSets {
                     continuation.resume(returning: couponSets)
                 } else {
                     continuation.resume(throwing: WarplyError.networkError)
                 }
-            }
+            }, failureCallback: { errorCode in
+                continuation.resume(throwing: WarplyError.unknownError(errorCode))
+            })
         }
     }
     

@@ -65,7 +65,7 @@ public enum Endpoint {
     
     // Coupons
     case getCoupons(language: String, couponsetType: String)
-    case getCouponSets(active: Bool, visible: Bool, uuids: [String]?)
+    case getCouponSets(language: String, active: Bool, visible: Bool, uuids: [String]?)
     case getAvailableCoupons
     
     // Market & Merchants
@@ -255,12 +255,12 @@ public enum Endpoint {
                 ]
             ]
             
-        case .getCouponSets(let active, let visible, let uuids):
+        case .getCouponSets(let language, let active, let visible, let uuids):
             var couponParams: [String: Any] = [
                 "action": "retrieve_multilingual",
                 "active": active,
                 "visible": visible,
-                "language": "LANG", // TODO: Make this configurable
+                "language": language,
                 "exclude": [
                     [
                         "field": "couponset_type",