add product one time issue fix

src/app/pages/order/order-form/order-form.component.html

@@ -163,7 +163,7 @@
             <nb-select  placeholder="Select Product"  [(ngModel)]="fieldGroup.id"    style="width: 100% !important;margin-right: 1rem;" [disabled]="fieldTitle == 'Edit Order' ? !fieldGroup.isNew : false">
               <!-- <nb-option  value="">Select Drivers</nb-option> -->
               <!-- (click)="onProductSelect(user.id,user.productName)" -->
-            <nb-option   *ngFor="let user of product; index as i; first as isFirst" [value]="user.id"  
+            <nb-option   *ngFor="let user of checkProductArray(); index as i; first as isFirst" [value]="user.id"  
             >{{user.productName  }}({{user.skuId  }} )</nb-option>
           
             

src/app/pages/order/order-form/order-form.component.ts

@@ -250,6 +250,8 @@ fieldTitle:any ='New Order'
     })
   }
 
+
+
   getUniqueProducts(products: any[], propertyName: string): any[] {
     const uniqueProducts = [];
     const seen = new Set();
@@ -903,6 +905,28 @@ this.onCreateConfirm()
 //        }
 //      })
   
+}
+
+checkProductArray() {
+  console.log(this.inputFieldGroups)
+  const hasNullId = this.inputFieldGroups.some((group) => group.id === null);
+console.log(hasNullId)
+if (!hasNullId) {
+  // There's an object with id = null in the inputFieldGroups array
+  console.log('There is an object with id = null');
+  return this.product;
+} else {
+  // There is no object with id = null in the inputFieldGroups array
+   // Filter products based on the condition (productName !== 'Mixed Gas' in inputFieldGroups)
+   const filteredProducts = this.product.filter((product) => {
+    const isSelected = this.inputFieldGroups.some((group) => group.id === product.id);
+    return product.productName === 'Mixed Gas' || !isSelected;
+  });
+
+  return filteredProducts;
+}
+ 
+
 }
 
 addInputFieldGroup() {