feat(donations): Implement response type to indicate possible missing donor

src/models/responses/ResponseAnonymousDonation.ts

@@ -0,0 +1,58 @@
+import { IsInt, IsPositive } from "class-validator";
+import { Donation } from '../entities/Donation';
+import { DonationStatus } from '../enums/DonationStatus';
+import { ResponseObjectType } from '../enums/ResponseObjectType';
+import { IResponse } from './IResponse';
+
+/**
+ * Defines the donation response.
+*/
+export class ResponseAnonymousDonation implements IResponse {
+
+    /**
+    * The responseType.
+    * This contains the type of class/entity this response contains.
+    */
+    responseType: ResponseObjectType = ResponseObjectType.DONATION;
+
+    /**
+    * The donation's payment status.
+    * Provides you with a quick indicator of it's payment status.
+    */
+    status: DonationStatus;
+
+    /**
+     * The donation's id.
+     */
+    @IsInt()
+    @IsPositive()
+    id: number;
+
+    /**
+     * The donation's amount in the smalles unit of your currency (default: euro cent).
+     */
+    @IsInt()
+    amount: number;
+
+    /**
+     * The donation's paid amount in the smalles unit of your currency (default: euro cent).
+     */
+    @IsInt()
+    paidAmount: number;
+
+    /**
+     * Creates a ResponseDonation object from a scan.
+     * @param donation The donation the response shall be build for.
+     */
+    public constructor(donation: Donation) {
+        this.id = donation.id;
+        this.amount = donation.amount;
+        this.paidAmount = donation.paidAmount || 0;
+        if (this.paidAmount < this.amount) {
+            this.status = DonationStatus.OPEN;
+        }
+        else {
+            this.status = DonationStatus.PAID;
+        }
+    }
+}