define date of last occurrence on agenda new and edit function

src/app/shared/agenda/new-event/new-event.page.ts

@@ -365,6 +365,8 @@ export class NewEventPage implements OnInit {
 
   onSelectedRecurringChanged(ev:any){
     
+    this.calculetedLastOccurrence(ev);
+    
     if(ev.length > 1){
       
       this.postEvent.EventRecurrence.Type = ev.filter(data => data != '-1');
@@ -374,8 +376,45 @@ export class NewEventPage implements OnInit {
     }
   }
 
+  calculetedLastOccurrence(type:number){
+    console.log(type);
+    var valor; 
+    var opcao: boolean;
+    if (type == 0) {
+      valor = 7;
+      opcao = true;
+    } else if(type == 1){
+      valor = 30;
+      opcao = true;
+    } else if(type == 2){
+      valor = 1;
+      opcao = false;
+    }else if(type == 3){
+      valor = 5;
+      opcao = false;
+    }
+    this.defineLastOccurrence(valor, opcao);
+  }
 
 
+  defineLastOccurrence(valor:number, opcao:boolean){
+    var time = new Date(this.postEvent.EndDate);
+    if (opcao == true) {
+      time.setDate(time.getDate() + valor);
+      this.postEvent.EventRecurrence.LastOccurrence = time;
+    } else {
+      time = new Date(
+        time.getFullYear() + valor, 
+        time.getMonth(), 
+        time.getDate(), 
+        time.getHours(), 
+        time.getMinutes()
+      );
+      this.postEvent.EventRecurrence.LastOccurrence = time;
+    }
+    
+  }
+
   async save() {
 
     this.injectValidation()