feat: wip attach attachments to resource models

packages/server/src/services/Attachments/events/AttachmentsOnSaleInvoice.ts

@@ -0,0 +1,157 @@
+import { Inject, Service } from 'typedi';
+import { isEmpty } from 'lodash';
+import {
+  ISaleInvoiceCreatedPayload,
+  ISaleInvoiceCreatingPaylaod,
+  ISaleInvoiceDeletePayload,
+  ISaleInvoiceEditedPayload,
+} from '@/interfaces';
+import events from '@/subscribers/events';
+import { LinkAttachment } from '../LinkAttachment';
+import { ValidateAttachments } from '../ValidateAttachments';
+import { UnlinkAttachment } from '../UnlinkAttachment';
+
+@Service()
+export class AttachmentsOnSaleInvoiceCreated {
+  @Inject()
+  private linkAttachmentService: LinkAttachment;
+
+  @Inject()
+  private unlinkAttachmentService: UnlinkAttachment;
+
+  @Inject()
+  private validateDocuments: ValidateAttachments;
+
+  /**
+   * Constructor method.
+   */
+  public attach(bus) {
+    bus.subscribe(
+      events.saleInvoice.onCreating,
+      this.validateAttachmentsOnSaleInvoiceCreate.bind(this)
+    );
+    bus.subscribe(
+      events.saleInvoice.onCreated,
+      this.handleAttachmentsOnSaleInvoiceCreated.bind(this)
+    );
+    bus.subscribe(
+      events.saleInvoice.onEdited,
+      this.handleUnlinkUnpresentedKeysOnInvoiceEdited.bind(this)
+    );
+    bus.subscribe(
+      events.saleInvoice.onEdited,
+      this.handleLinkPresentedKeysOnInvoiceEdited.bind(this)
+    );
+    bus.subscribe(
+      events.saleInvoice.onDeleting,
+      this.handleUnlinkAttachmentsOnInvoiceDeleted.bind(this)
+    );
+  }
+
+  /**
+   * Validates the attachment keys on creating sale invoice.
+   * @param {ISaleInvoiceCreatingPaylaod}
+   * @returns {Promise<void>}
+   */
+  private async validateAttachmentsOnSaleInvoiceCreate({
+    saleInvoiceDTO,
+    tenantId,
+  }: ISaleInvoiceCreatingPaylaod): Promise<void> {
+    if (isEmpty(saleInvoiceDTO.attachments)) {
+      return;
+    }
+    const documentKeys = saleInvoiceDTO?.attachments?.map((a) => a.key);
+
+    await this.validateDocuments.validate(tenantId, documentKeys);
+  }
+
+  /**
+   * Handles linking the attachments of the created sale invoice.
+   * @param {ISaleInvoiceCreatedPayload}
+   * @returns {Promise<void>}
+   */
+  private async handleAttachmentsOnSaleInvoiceCreated({
+    tenantId,
+    saleInvoiceDTO,
+    saleInvoice,
+    trx,
+  }: ISaleInvoiceCreatedPayload): Promise<void> {
+    if (isEmpty(saleInvoiceDTO.attachments)) return;
+
+    const keys = saleInvoiceDTO.attachments?.map(
+      (attachment) => attachment.key
+    );
+    await this.linkAttachmentService.bulkLink(
+      tenantId,
+      keys,
+      'SaleInvoice',
+      saleInvoice.id,
+      trx
+    );
+  }
+
+  /**
+   * Handles unlinking all the unpresented keys of the edited sale invoice.
+   * @param {ISaleInvoiceEditedPayload}
+   */
+  private async handleUnlinkUnpresentedKeysOnInvoiceEdited({
+    tenantId,
+    saleInvoiceDTO,
+    saleInvoice,
+  }: ISaleInvoiceEditedPayload) {
+    // if (isEmpty(saleInvoiceDTO.attachments)) return;
+
+    const keys = saleInvoiceDTO.attachments?.map(
+      (attachment) => attachment.key
+    );
+    await this.unlinkAttachmentService.unlinkUnpresentedKeys(
+      tenantId,
+      keys,
+      'SaleInvoice',
+      saleInvoice.id
+    );
+  }
+
+  /**
+   * Handles linking all the presented keys of the edited sale invoice.
+   * @param {ISaleInvoiceEditedPayload}
+   * @returns {Promise<void>}
+   */
+  private async handleLinkPresentedKeysOnInvoiceEdited({
+    tenantId,
+    saleInvoiceDTO,
+    oldSaleInvoice,
+    trx,
+  }: ISaleInvoiceEditedPayload) {
+    if (isEmpty(saleInvoiceDTO.attachments)) return;
+
+    const keys = saleInvoiceDTO.attachments?.map(
+      (attachment) => attachment.key
+    );
+    await this.linkAttachmentService.bulkLink(
+      tenantId,
+      keys,
+      'SaleInvoice',
+      oldSaleInvoice.id,
+      trx
+    );
+  }
+
+  /**
+   * Unlink all attachments once the invoice deleted.
+   * @param {ISaleInvoiceDeletedPayload}
+   * @returns {Promise<void>}
+   */
+  private async handleUnlinkAttachmentsOnInvoiceDeleted({
+    tenantId,
+    saleInvoice,
+    trx,
+  }: ISaleInvoiceDeletePayload) {
+    await this.unlinkAttachmentService.unlinkAllModelKeys(
+      tenantId,
+      'SaleInvoice',
+      saleInvoice.id,
+      trx
+    );
+  }
+}