feat: hook up branding templates to invoices

packages/server/src/services/Sales/Invoices/SaleInvoicePdfTemplate.ts

@@ -0,0 +1,31 @@
+import { Inject, Service } from 'typedi';
+import { mergePdfTemplateWithDefaultAttributes } from './utils';
+import { GetPdfTemplate } from '@/services/PdfTemplate/GetPdfTemplate';
+import { defaultInvoicePdfTemplateAttributes } from './constants';
+
+@Service()
+export class SaleInvoicePdfTemplate {
+  @Inject()
+  private getPdfTemplateService: GetPdfTemplate;
+
+  /**
+   * Retrieves the invoice pdf template.
+   * @param {number} tenantId 
+   * @param {number} invoiceTemplateId 
+   * @returns 
+   */
+  async getInvoicePdfTemplate(tenantId: number, invoiceTemplateId: number){
+    const template = await this.getPdfTemplateService.getPdfTemplate(
+      tenantId,
+      invoiceTemplateId
+    );
+    const attributes = mergePdfTemplateWithDefaultAttributes(
+      template.attributes,
+      defaultInvoicePdfTemplateAttributes
+    );
+    return {
+      ...template,
+      attributes,
+    };
+  }
+}