fix redeemed coupons sorting

@@ -605,6 +605,7 @@ public class swiftApi {
         public let barcode: String?
         public let status: Int?
         public let redeemed: String?
+        public let redeemed_date: Date?
         public var couponset_data: CouponSetItemModel?
         
         // Market Coupon
@@ -669,15 +670,18 @@ public class swiftApi {
                 let dateFormatter3 = DateFormatter()
                 dateFormatter3.dateFormat = "yyyy-MM-dd HH:mm:ss.SSSSSS"
                 if let date = dateFormatter3.date(from: redeemedString ?? "") {
+                    self.redeemed_date = date
                     dateFormatter3.dateFormat = "dd/MM/yyyy"
                     let resultString = dateFormatter3.string(from: date)
                     self.redeemed = resultString
                 } else {
                     self.redeemed = ""
+                    self.redeemed_date = Date()
                 }
 
             } else {
                 self.redeemed = ""
+                self.redeemed_date = Date()
             }
 
         }
@@ -4398,7 +4402,26 @@ public class swiftApi {
 
     public func setOldCouponList(_ coupons: Array<CouponItemModel>) {
         // let filteredCoupons = coupons.filter { CharacterSet.decimalDigits.isSuperset(of: CharacterSet(charactersIn: $0.discount ?? "")) }
-        let oldCoupons = coupons.filter({ return $0.status == 0 })
+        var oldCoupons = coupons.filter({ return $0.status == 0 })
+        
+        // sort oldCoupons by redeemed date
+//        let dateFormatter = DateFormatter()
+//        dateFormatter.dateFormat = "dd/MM/yyyy"
+
+        oldCoupons.sort(by: {
+//            let date1 = dateFormatter.date(from: $0.redeemed ?? "")
+//            let date2 = dateFormatter.date(from: $1.redeemed ?? "")
+            
+            let date1 = $0.redeemed_date
+            let date2 = $1.redeemed_date
+            
+            if ((date1 != nil) && (date2 != nil)) {
+                return date1!.compare(date2!) == .orderedDescending
+            } else {
+                return false
+            }
+            
+        })
         
         GlobalVariables.oldCouponList = oldCoupons
     }