feat(server): wip sale invoice tax rates

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

@@ -0,0 +1,46 @@
+import { Transformer } from '@/lib/Transformer/Transformer';
+
+export class SaleInvoiceTaxEntryTransformer extends Transformer {
+  /**
+   * Included attributes.
+   * @returns {Array}
+   */
+  public includeAttributes = (): string[] => {
+    return ['name', 'taxRateCode', 'raxRate', 'taxRateId'];
+  };
+
+  /**
+   * Exclude attributes.
+   * @returns {string[]}
+   */
+  public excludeAttributes = (): string[] => {
+    return ['*'];
+  };
+
+  /**
+   *  Retrieve  tax rate code.
+   * @param taxEntry
+   * @returns {string}
+   */
+  protected taxRateCode = (taxEntry) => {
+    return taxEntry.taxRate.code;
+  };
+
+  /**
+   * Retrieve tax rate id.
+   * @param taxEntry
+   * @returns {number}
+   */
+  protected raxRate = (taxEntry) => {
+    return taxEntry.taxAmount || taxEntry.taxRate.rate;
+  };
+
+  /**
+   * Retrieve tax rate name.
+   * @param taxEntry
+   * @returns {string}
+   */
+  protected name = (taxEntry) => {
+    return taxEntry.taxRate.name;
+  };
+}