feat(nestjs): migrate to NestJS

packages/server/src/modules/Attachments/events/AttachmentsOnVendorCredits.ts

@@ -0,0 +1,125 @@
+import { isEmpty } from 'lodash';
+import {
+  IVendorCreditCreatedPayload,
+  IVendorCreditCreatingPayload,
+  IVendorCreditDeletingPayload,
+  IVendorCreditEditedPayload,
+} from '../../VendorCredit/types/VendorCredit.types';
+import { ValidateAttachments } from '../ValidateAttachments';
+import { OnEvent } from '@nestjs/event-emitter';
+import { Injectable } from '@nestjs/common';
+import { UnlinkAttachment } from '../UnlinkAttachment';
+import { LinkAttachment } from '../LinkAttachment';
+import { events } from '@/common/events/events';
+
+@Injectable()
+export class AttachmentsOnVendorCredits {
+  constructor(
+    private readonly linkAttachmentService: LinkAttachment,
+    private readonly unlinkAttachmentService: UnlinkAttachment,
+    private readonly validateDocuments: ValidateAttachments,
+  ) {}
+
+  /**
+   * Validates the attachment keys on creating vendor credit.
+   * @param {IVendorCreditCreatingPayload}
+   * @returns {Promise<void>}
+   */
+  @OnEvent(events.vendorCredit.onCreating)
+  async validateAttachmentsOnVendorCreditCreate({
+    vendorCreditCreateDTO,
+  }: IVendorCreditCreatingPayload): Promise<void> {
+    if (isEmpty(vendorCreditCreateDTO.attachments)) {
+      return;
+    }
+    const documentKeys = vendorCreditCreateDTO?.attachments?.map((a) => a.key);
+
+    await this.validateDocuments.validate(documentKeys);
+  }
+
+  /**
+   * Handles linking the attachments of the created vendor credit.
+   * @param {IVendorCreditCreatedPayload}
+   * @returns {Promise<void>}
+   */
+  @OnEvent(events.vendorCredit.onCreated)
+  async handleAttachmentsOnVendorCreditCreated({
+    vendorCreditCreateDTO,
+    vendorCredit,
+    trx,
+  }: IVendorCreditCreatedPayload): Promise<void> {
+    if (isEmpty(vendorCreditCreateDTO.attachments)) return;
+
+    const keys = vendorCreditCreateDTO.attachments?.map(
+      (attachment) => attachment.key,
+    );
+    await this.linkAttachmentService.bulkLink(
+      keys,
+      'VendorCredit',
+      vendorCredit.id,
+      trx,
+    );
+  }
+
+  /**
+   * Handles unlinking all the unpresented keys of the edited vendor credit.
+   * @param {IVendorCreditEditedPayload}
+   */
+  @OnEvent(events.vendorCredit.onEdited)
+  async handleUnlinkUnpresentedKeysOnVendorCreditEdited({
+    vendorCreditDTO,
+    oldVendorCredit,
+    trx,
+  }: IVendorCreditEditedPayload) {
+    const keys = vendorCreditDTO.attachments?.map(
+      (attachment) => attachment.key,
+    );
+    await this.unlinkAttachmentService.unlinkUnpresentedKeys(
+      keys,
+      'VendorCredit',
+      oldVendorCredit.id,
+      trx,
+    );
+  }
+
+  /**
+   * Handles linking all the presented keys of the edited vendor credit.
+   * @param {IVendorCreditEditedPayload}
+   * @returns {Promise<void>}
+   */
+  @OnEvent(events.vendorCredit.onEdited)
+  async handleLinkPresentedKeysOnVendorCreditEdited({
+    vendorCreditDTO,
+    oldVendorCredit,
+    trx,
+  }: IVendorCreditEditedPayload) {
+    if (isEmpty(vendorCreditDTO.attachments)) return;
+
+    const keys = vendorCreditDTO.attachments?.map(
+      (attachment) => attachment.key,
+    );
+    await this.linkAttachmentService.bulkLink(
+      keys,
+      'VendorCredit',
+      oldVendorCredit.id,
+      trx,
+    );
+  }
+
+  /**
+   * Unlink all attachments once the vendor credit deleted.
+   * @param {IVendorCreditDeletingPayload}
+   * @returns {Promise<void>}
+   */
+  @OnEvent(events.vendorCredit.onDeleting)
+  async handleUnlinkAttachmentsOnVendorCreditDeleted({
+    oldVendorCredit,
+    trx,
+  }: IVendorCreditDeletingPayload) {
+    await this.unlinkAttachmentService.unlinkAllModelKeys(
+      'VendorCredit',
+      oldVendorCredit.id,
+      trx,
+    );
+  }
+}