refactor: inventory adjustments to nestjs

packages/server-nest/src/modules/InventoryAdjutments/queries/GetInventoryAdjustment.service.ts

@@ -0,0 +1,31 @@
+import { TransformerInjectable } from "@/modules/Transformer/TransformerInjectable.service";
+import { InventoryAdjustment } from "../models/InventoryAdjustment";
+import { InventoryAdjustmentTransformer } from "../InventoryAdjustmentTransformer";
+
+export class GetInventoryAdjustmentService {
+  constructor(
+    private readonly transformer: TransformerInjectable,
+  ) {}
+
+  /**
+   * Retrieve specific inventory adjustment transaction details.
+   * @param {number} inventoryAdjustmentId - Inventory adjustment id.
+   */
+  async getInventoryAdjustment(
+    inventoryAdjustmentId: number,
+  ) {
+    // Retrieve inventory adjustment transation with associated models.
+    const inventoryAdjustment = await InventoryAdjustment.query()
+      .findById(inventoryAdjustmentId)
+      .withGraphFetched('entries.item')
+      .withGraphFetched('adjustmentAccount');
+
+    // Throw not found if the given adjustment transaction not exists.
+    this.throwIfAdjustmentNotFound(inventoryAdjustment);
+
+    return this.transformer.transform(
+      inventoryAdjustment,
+      new InventoryAdjustmentTransformer(),
+    );
+  }
+}