feat(nestjs): migrate to NestJS

packages/server/src/modules/InventoryCost/InventoryCostApplication.ts

@@ -0,0 +1,34 @@
+import { Injectable } from '@nestjs/common';
+import { InventoryItemCostService } from './commands/InventoryCosts.service';
+
+@Injectable()
+export class InventoryCostApplication {
+  constructor(private readonly inventoryCost: InventoryItemCostService) {}
+
+  /**
+   * Computes the item cost.
+   * @param {Date} fromDate - From date.
+   * @param {number} itemId - Item id.
+   * @returns {Promise<Map<number, IInventoryItemCostMeta>>}
+   */
+  computeItemCost(fromDate: Date, itemId: number) {
+    return this.inventoryCost.getItemsInventoryValuation([itemId], fromDate);
+  }
+
+  /**
+   * Retrieves the items inventory valuation list.
+   * @param {number[]} itemsId
+   * @param {Date} date
+   * @returns {Promise<IInventoryItemCostMeta[]>}
+   */
+  async getItemsInventoryValuation(
+    itemsId: number[],
+    date: Date,
+  ): Promise<any> {
+    const itemsMap = await this.inventoryCost.getItemsInventoryValuation(
+      itemsId,
+      date,
+    );
+    return [...itemsMap.values()];
+  }
+}