feat: wip send invoice mail payment template

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

@@ -0,0 +1,66 @@
+import { Inject, Service } from 'typedi';
+import { GetPdfTemplate } from '@/services/PdfTemplate/GetPdfTemplate';
+import { GetSaleInvoice } from './GetSaleInvoice';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import {
+  InvoicePaymentEmailProps,
+  renderInvoicePaymentEmail,
+} from '@bigcapital/email-components';
+import { GetInvoiceMailTemplateAttributesTransformer } from './GetInvoicePaymentMailAttributesTransformer';
+
+@Service()
+export class GetInvoicePaymentMail {
+  @Inject()
+  private getSaleInvoiceService: GetSaleInvoice;
+
+  @Inject()
+  private getBrandingTemplate: GetPdfTemplate;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  /**
+   * Retrieves the mail template attributes of the given invoice.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} invoiceId - Invoice id.
+   */
+  public async getMailTemplateAttributes(tenantId: number, invoiceId: number) {
+    const invoice = await this.getSaleInvoiceService.getSaleInvoice(
+      tenantId,
+      invoiceId
+    );
+    const brandingTemplate = await this.getBrandingTemplate.getPdfTemplate(
+      tenantId,
+      invoice.pdfTemplateId
+    );
+    const mailTemplateAttributes = await this.transformer.transform(
+      tenantId,
+      invoice,
+      new GetInvoiceMailTemplateAttributesTransformer(),
+      {
+        invoice,
+        brandingTemplate,
+      }
+    );
+    return mailTemplateAttributes;
+  }
+
+  /**
+   * Retrieves the mail template html content.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} invoiceId - Invoice id.
+   */
+  public async getMailTemplate(
+    tenantId: number,
+    invoiceId: number,
+    overrideAttributes?: Partial<InvoicePaymentEmailProps>
+  ): Promise<string> {
+    const attributes = await this.getMailTemplateAttributes(
+      tenantId,
+      invoiceId
+    );
+    const mergedAttributes = { ...attributes, ...overrideAttributes };
+
+    return renderInvoicePaymentEmail(mergedAttributes);
+  }
+}