feat: wip send estimate mail preview

packages/server/src/services/Sales/Estimates/GetSaleEstimateMailState.ts

@@ -0,0 +1,51 @@
+import { Inject } from 'typedi';
+import { SendSaleEstimateMail } from './SendSaleEstimateMail';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { GetSaleEstimateMailStateTransformer } from './GetSaleEstimateMailStateTransformer';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+
+export class GetSaleEstimateMailState {
+  @Inject()
+  private estimateMail: SendSaleEstimateMail;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  /**
+   * Retrieves the estimate mail state of the given sale estimate.
+   * Estimate mail state includes the mail options, branding attributes and the estimate details.
+   * @param {number} tenantId
+   * @param {number} saleEstimateId
+   * @returns {Promise<SaleEstimateMailState>}
+   */
+  async getEstimateMailState(
+    tenantId: number,
+    saleEstimateId: number
+  ): Promise<SaleEstimateMailState> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    const saleEstimate = await SaleEstimate.query()
+      .findById(saleEstimateId)
+      .withGraphFetched('customer')
+      .withGraphFetched('entries.item')
+      .withGraphFetched('pdfTemplate')
+      .throwIfNotFound();
+
+    const mailOptions = await this.estimateMail.getMailOptions(
+      tenantId,
+      saleEstimateId
+    );
+    const transformed = await this.transformer.transform(
+      tenantId,
+      saleEstimate,
+      new GetSaleEstimateMailStateTransformer(),
+      {
+        mailOptions,
+      }
+    );
+    return transformed;
+  }
+}