refactor: split the services to multiple service classes (#202)

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

@@ -0,0 +1,37 @@
+import { Inject, Service } from 'typedi';
+import PdfService from '@/services/PDF/PdfService';
+import { templateRender } from 'utils';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Tenant } from '@/system/models';
+
+@Service()
+export class SaleInvoicePdf {
+  @Inject()
+  pdfService: PdfService;
+
+  @Inject()
+  tenancy: HasTenancyService;
+
+  /**
+   * Retrieve sale invoice pdf content.
+   * @param {} saleInvoice -
+   */
+  async saleInvoicePdf(tenantId: number, saleInvoice) {
+    const i18n = this.tenancy.i18n(tenantId);
+
+    const organization = await Tenant.query()
+      .findById(tenantId)
+      .withGraphFetched('metadata');
+
+    const htmlContent = templateRender('modules/invoice-regular', {
+      organization,
+      organizationName: organization.metadata.name,
+      organizationEmail: organization.metadata.email,
+      saleInvoice,
+      ...i18n,
+    });
+    const pdfContent = await this.pdfService.pdfDocument(htmlContent);
+
+    return pdfContent;
+  }
+}