SSF-225 FM Deleting & Editing Donation Item Backend

apps/backend/src/donationItems/donationItems.service.spec.ts

@@ -9,6 +9,7 @@ import { BadRequestException, NotFoundException } from '@nestjs/common';
 import { testDataSource } from '../config/typeormTestDataSource';
 import { CreateDonationItemDto } from './dtos/create-donation-items.dto';
 import { UpdateDonationItemDetailsDto } from './dtos/update-donation-item-details.dto';
+import { ReplaceDonationItemDto } from './dtos/replace-donation-item.dto';
 
 jest.setTimeout(60000);
 
@@ -562,4 +563,131 @@ describe('DonationItemsService', () => {
       expect(item?.detailsConfirmed).toBe(true);
     });
   });
+
+  describe('editItems', () => {
+    const makeItem = (
+      overrides: Partial<ReplaceDonationItemDto> = {},
+    ): ReplaceDonationItemDto => ({
+      itemName: 'Edited Item',
+      quantity: 20,
+      ozPerItem: 8,
+      estimatedValue: 3.5,
+      foodType: FoodType.QUINOA,
+      foodRescue: true,
+      ...overrides,
+    });
+
+    const donationId = 3;
+    const itemA = 7;
+    const itemB = 8;
+
+    beforeEach(async () => {
+      await testDataSource.query(
+        `DELETE FROM allocations WHERE item_id IN ($1, $2)`,
+        [itemA, itemB],
+      );
+    });
+
+    it('updates existing items, inserts new items, and deletes omitted items', async () => {
+      const itemsBefore = await service.getAllDonationItems(donationId);
+      expect(itemsBefore).toHaveLength(2);
+
+      await testDataSource.transaction((tm) =>
+        service.editItems(
+          donationId,
+          [
+            makeItem({
+              itemId: itemA,
+              itemName: 'Item A Updated',
+              quantity: 99,
+            }),
+            makeItem({ itemName: 'Brand New Item' }),
+          ],
+          tm,
+        ),
+      );
+
+      const items = await service.getAllDonationItems(donationId);
+      // updated itemA + inserted one new + deleted itemB => count unchanged at 2
+      expect(items).toHaveLength(itemsBefore.length);
+      expect(items).toHaveLength(2);
+
+      const names = items.map((i) => i.itemName).sort();
+      expect(names).toEqual(['Brand New Item', 'Item A Updated']);
+
+      const updated = items.find((i) => i.itemId === itemA) as DonationItem;
+      expect(updated.quantity).toBe(99);
+      expect(updated.foodRescue).toBe(true);
+      expect(updated.foodType).toBe(FoodType.QUINOA);
+      expect(Number(updated.ozPerItem)).toBe(8);
+      expect(Number(updated.estimatedValue)).toBe(3.5);
+      expect(updated.detailsConfirmed).toBe(true);
+
+      const inserted = items.find(
+        (i) => i.itemName === 'Brand New Item',
+      ) as DonationItem;
+      expect(inserted.donationId).toBe(donationId);
+      expect(inserted.reservedQuantity).toBe(0);
+      expect(inserted.detailsConfirmed).toBe(true);
+
+      // itemB was omitted from the body, so it should be deleted
+      expect(items.some((i) => i.itemId === itemB)).toBe(false);
+      await expect(service.findOne(itemB)).rejects.toThrow();
+    });
+
+    it('throws BadRequestException when an itemId does not belong to the donation', async () => {
+      const foreignItemId = 11;
+
+      await expect(
+        testDataSource.transaction((tm) =>
+          service.editItems(
+            donationId,
+            [makeItem({ itemId: foreignItemId })],
+            tm,
+          ),
+        ),
+      ).rejects.toThrow(
+        new BadRequestException(
+          `Donation item ${foreignItemId} does not belong to Donation ${donationId}`,
+        ),
+      );
+    });
+
+    it('throws BadRequestException when the same itemId appears twice', async () => {
+      await expect(
+        testDataSource.transaction((tm) =>
+          service.editItems(
+            donationId,
+            [makeItem({ itemId: itemA }), makeItem({ itemId: itemA })],
+            tm,
+          ),
+        ),
+      ).rejects.toThrow(
+        new BadRequestException(`Duplicate itemId ${itemA} in request`),
+      );
+    });
+
+    it('rolls back all changes when one item fails to persist within the transaction', async () => {
+      await expect(
+        testDataSource.transaction((tm) =>
+          service.editItems(
+            donationId,
+            [
+              makeItem({ itemId: itemA, itemName: 'Item A Updated' }),
+              makeItem({ itemName: 'a'.repeat(1000) }), // exceeds varchar(255)
+            ],
+            tm,
+          ),
+        ),
+      ).rejects.toThrow();
+
+      const items = await service.getAllDonationItems(donationId);
+      expect(items).toHaveLength(2);
+
+      const a = items.find((i) => i.itemId === itemA);
+      expect(a?.itemName).toBe('Rice (5lb bag)');
+      const b = items.find((i) => i.itemId === itemB);
+      expect(b).toBeDefined();
+    });
+  });
 });

apps/backend/src/donationItems/donationItems.service.ts

@@ -11,6 +11,7 @@ import { FoodType } from './types';
 import { Donation } from '../donations/donations.entity';
 import { CreateDonationItemDto } from './dtos/create-donation-items.dto';
 import { UpdateDonationItemDetailsDto } from './dtos/update-donation-item-details.dto';
+import { ReplaceDonationItemDto } from './dtos/replace-donation-item.dto';
 
 @Injectable()
 export class DonationItemsService {
@@ -131,6 +132,64 @@ export class DonationItemsService {
     return confirmedDetailsForAnItem;
   }
 
+  async editItems(
+    donationId: number,
+    body: ReplaceDonationItemDto[],
+    transactionManager: EntityManager,
+  ): Promise<void> {
+    const itemRepo = transactionManager.getRepository(DonationItem);
+
+    const existingIds = new Set(
+      (
+        await itemRepo.find({
+          where: { donationId },
+          select: { itemId: true },
+        })
+      ).map((item) => item.itemId),
+    );
+
+    const providedIds = new Set<number>();
+    for (const dto of body) {
+      if (dto.itemId === undefined) continue;
+
+      if (providedIds.has(dto.itemId)) {
+        throw new BadRequestException(
+          `Duplicate itemId ${dto.itemId} in request`,
+        );
+      }
+      providedIds.add(dto.itemId);
+
+      if (!existingIds.has(dto.itemId)) {
+        throw new BadRequestException(
+          `Donation item ${dto.itemId} does not belong to Donation ${donationId}`,
+        );
+      }
+    }
+
+    const idsToDelete = [...existingIds].filter((id) => !providedIds.has(id));
+
+    if (idsToDelete.length > 0) {
+      await itemRepo.delete({ itemId: In(idsToDelete) });
+    }
+
+    const itemsToSave = body.map((dto) =>
+      itemRepo.create({
+        ...(dto.itemId !== undefined
+          ? { itemId: dto.itemId }
+          : { donationId, reservedQuantity: 0 }),
+        itemName: dto.itemName,
+        quantity: dto.quantity,
+        ozPerItem: dto.ozPerItem,
+        estimatedValue: dto.estimatedValue,
+        foodType: dto.foodType,
+        foodRescue: dto.foodRescue,
+        detailsConfirmed: true,
+      }),
+    );
+
+    await itemRepo.save(itemsToSave);
+  }
+
   async createMultiple(
     savedDonation: Donation,
     items: CreateDonationItemDto[],

apps/backend/src/donationItems/dtos/replace-donation-item.dto.ts

@@ -0,0 +1,49 @@
+import {
+  IsNumber,
+  IsString,
+  Min,
+  IsEnum,
+  IsNotEmpty,
+  Length,
+  IsOptional,
+  IsInt,
+  IsBoolean,
+} from 'class-validator';
+import { FoodType } from '../types';
+
+// itemId present = update row, else add
+export class ReplaceDonationItemDto {
+  @IsOptional()
+  @IsInt()
+  @Min(1)
+  itemId?: number;
+
+  @IsString()
+  @IsNotEmpty()
+  @Length(1, 255)
+  itemName!: string;
+
+  @IsInt()
+  @Min(1)
+  quantity!: number;
+
+  @IsNumber(
+    { maxDecimalPlaces: 2 },
+    { message: 'ozPerItem must have at most 2 decimal places' },
+  )
+  @Min(0.01)
+  ozPerItem!: number;
+
+  @IsNumber(
+    { maxDecimalPlaces: 2 },
+    { message: 'estimatedValue must have at most 2 decimal places' },
+  )
+  @Min(0.01)
+  estimatedValue!: number;
+
+  @IsEnum(FoodType)
+  foodType!: FoodType;
+
+  @IsBoolean()
+  foodRescue!: boolean;
+}

apps/backend/src/donations/donations.controller.spec.ts

@@ -7,6 +7,8 @@ import { CreateDonationDto } from './dtos/create-donation.dto';
 import { CreateDonationItemDto } from '../donationItems/dtos/create-donation-items.dto';
 import { DonationStatus, RecurrenceEnum } from './types';
 import { UpdateDonationItemDetailsDto } from '../donationItems/dtos/update-donation-item-details.dto';
+import { ReplaceDonationItemDto } from '../donationItems/dtos/replace-donation-item.dto';
+import { FoodType } from '../donationItems/types';
 import { AuthenticatedRequest } from '../auth/authenticated-request';
 import { FoodManufacturersService } from '../foodManufacturers/manufacturers.service';
 
@@ -127,6 +129,38 @@ describe('DonationsController', () => {
     });
   });
 
+  describe('PATCH /:donationId/item', () => {
+    it('calls editDonationItems with the correct donationId and body', async () => {
+      const donationId = 1;
+      const body: ReplaceDonationItemDto[] = [
+        {
+          itemName: 'Brand New Item',
+          quantity: 10,
+          ozPerItem: 5,
+          estimatedValue: 2,
+          foodType: FoodType.QUINOA,
+          foodRescue: false,
+        },
+        {
+          itemId: 3,
+          itemName: 'Existing Item Updated',
+          quantity: 5,
+          ozPerItem: 8,
+          estimatedValue: 3,
+          foodType: FoodType.GRANOLA,
+          foodRescue: true,
+        },
+      ];
+
+      await controller.editDonationItems(donationId, body);
+
+      expect(mockDonationService.editDonationItems).toHaveBeenCalledWith(
+        donationId,
+        body,
+      );
+    });
+  });
+
   describe('DELETE /:donationId', () => {
     it('should call donationService.delete with the correct id', async () => {
       const donationId = 1;

apps/backend/src/donations/donations.controller.ts

@@ -16,6 +16,7 @@ import { DonationService } from './donations.service';
 import { RecurrenceEnum } from './types';
 import { CreateDonationDto } from './dtos/create-donation.dto';
 import { UpdateDonationItemDetailsDto } from '../donationItems/dtos/update-donation-item-details.dto';
+import { ReplaceDonationItemDto } from '../donationItems/dtos/replace-donation-item.dto';
 import { FoodType } from '../donationItems/types';
 import { Roles } from '../auth/roles.decorator';
 import { Role } from '../users/types';
@@ -137,6 +138,20 @@ export class DonationsController {
     await this.donationService.updateDonationItemDetails(donationId, body);
   }
 
+  @Roles(Role.FOODMANUFACTURER)
+  @CheckOwnership({
+    idParam: 'donationId',
+    resolver: resolveDonationAuthorizedUserIds,
+  })
+  @Patch('/:donationId/item')
+  async editDonationItems(
+    @Param('donationId', ParseIntPipe) donationId: number,
+    @Body(new ParseArrayPipe({ items: ReplaceDonationItemDto }))
+    body: ReplaceDonationItemDto[],
+  ): Promise<void> {
+    await this.donationService.editDonationItems(donationId, body);
+  }
+
   @Roles(Role.FOODMANUFACTURER)
   @CheckOwnership({
     idParam: 'donationId',