fix(back-end): file error handling

.gitea/workflows/cicd.yaml

@@ -21,16 +21,6 @@ jobs:
           java-version: '21'
           distribution: 'temurin'
 
-      - name: Cache Gradle
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: gradle-${{ runner.os }}-${{ hashFiles('backend/gradle/wrapper/gradle-wrapper.properties', 'backend/**/*.gradle*', 'backend/gradle.properties') }}
-          restore-keys: |
-            gradle-${{ runner.os }}-
-
       - name: Run Tests with Gradle
         run: |
           cd backend

frontend/src/app/features/calculator/calculator-page.component.html

@@ -37,6 +37,7 @@
             [loading]="loading()"
             [uploadProgress]="uploadProgress()"
             (submitRequest)="onCalculate($event)"
+            (itemRemoved)="onItemRemoved($event)"
           ></app-upload-form>
         </app-card>
       </div>

frontend/src/app/features/calculator/calculator-page.component.ts

@@ -224,6 +224,43 @@ export class CalculatorPageComponent implements OnInit {
       }
   }
 
+  onItemRemoved(event: {index: number, id?: string}) {
+      // 1. Update local result if exists to keep UI in sync
+      const currentRes = this.result();
+      if (currentRes) {
+          const updatedItems = [...currentRes.items];
+          updatedItems.splice(event.index, 1);
+          
+          // Recalculate totals locally for immediate feedback
+          let totalTime = 0;
+          let totalWeight = 0;
+          let itemsPrice = 0;
+          
+          updatedItems.forEach(i => {
+              totalTime += i.unitTime * i.quantity;
+              totalWeight += i.unitWeight * i.quantity;
+              itemsPrice += i.unitPrice * i.quantity;
+          });
+
+          this.result.set({
+              ...currentRes,
+              items: updatedItems,
+              totalPrice: Math.round((itemsPrice + currentRes.setupCost) * 100) / 100,
+              totalTimeHours: Math.floor(totalTime / 3600),
+              totalTimeMinutes: Math.ceil((totalTime % 3600) / 60),
+              totalWeight: Math.ceil(totalWeight)
+          });
+      }
+
+      // 2. Delete from backend if ID exists
+      if (event.id && currentRes?.sessionId) {
+          this.estimator.deleteLineItem(currentRes.sessionId, event.id).subscribe({
+              next: () => console.log('Line item deleted from backend'),
+              error: (err) => console.error('Failed to delete line item', err)
+          });
+      }
+  }
+
   onSubmitOrder(orderData: any) {
     console.log('Order Submitted:', orderData);
     this.orderSuccess.set(true);

frontend/src/app/features/calculator/components/upload-form/upload-form.component.ts

@@ -30,6 +30,7 @@ export class UploadFormComponent implements OnInit {
   loading = input<boolean>(false);
   uploadProgress = input<number>(0);
   submitRequest = output<QuoteRequest>();
+  itemRemoved = output<{index: number, id?: string}>();
 
   private estimator = inject(QuoteEstimatorService);
   private fb = inject(FormBuilder);
@@ -252,6 +253,7 @@ export class UploadFormComponent implements OnInit {
   }
 
   removeItem(index: number) {
+      const itemToRemove = this.items()[index];
       this.items.update(current => {
           const updated = [...current];
           const removed = updated.splice(index, 1)[0];
@@ -260,6 +262,7 @@ export class UploadFormComponent implements OnInit {
           }
           return updated;
       });
+      this.itemRemoved.emit({ index, id: itemToRemove.id });
   }
 
   setFiles(files: File[], colors?: string[]) {

frontend/src/app/features/calculator/services/quote-estimator.service.ts

@@ -139,6 +139,13 @@ export class QuoteEstimatorService {
       return this.http.patch(`${environment.apiUrl}/api/quote-sessions/line-items/${lineItemId}`, changes, { headers });
   }
 
+  deleteLineItem(sessionId: string, lineItemId: string): Observable<any> {
+      const headers: any = {};
+      // @ts-ignore
+      if (environment.basicAuth) headers['Authorization'] = 'Basic ' + btoa(environment.basicAuth);
+      return this.http.delete(`${environment.apiUrl}/api/quote-sessions/${sessionId}/line-items/${lineItemId}`, { headers });
+  }
+
   createOrder(sessionId: string, orderDetails: any): Observable<any> {
       const headers: any = {};
       // @ts-ignore