feat: bulk transcations delete

packages/server/src/modules/Items/BulkDeleteItems.service.ts

@@ -0,0 +1,38 @@
+import { Injectable } from '@nestjs/common';
+import { Knex } from 'knex';
+import { PromisePool } from '@supercharge/promise-pool';
+import { castArray, uniq } from 'lodash';
+import { DeleteItemService } from './DeleteItem.service';
+
+@Injectable()
+export class BulkDeleteItemsService {
+  constructor(private readonly deleteItemService: DeleteItemService) { }
+
+  /**
+   * Deletes multiple items.
+   * @param {number | Array<number>} itemIds - The item id or ids.
+   * @param {Knex.Transaction} trx - The transaction.
+   */
+  async bulkDeleteItems(
+    itemIds: number | Array<number>,
+    trx?: Knex.Transaction,
+  ): Promise<void> {
+    const itemsIds = uniq(castArray(itemIds));
+
+    // Use PromisePool to delete items sequentially (concurrency: 1)
+    // to avoid potential database locks and maintain transaction integrity
+    const results = await PromisePool.withConcurrency(1)
+      .for(itemsIds)
+      .process(async (itemId: number) => {
+        await this.deleteItemService.deleteItem(itemId, trx);
+      });
+
+    // Check if there were any errors
+    if (results.errors && results.errors.length > 0) {
+      // If needed, you can throw an error here or handle errors individually
+      // For now, we'll let individual errors bubble up
+      throw results.errors[0].raw;
+    }
+  }
+}
+