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

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

@@ -0,0 +1,91 @@
+import { Transformer } from '@/lib/Transformer/Transformer';
+import { formatNumber } from 'utils';
+
+export class SaleInvoiceTransformer extends Transformer {
+  /**
+   * Include these attributes to sale invoice object.
+   * @returns {Array}
+   */
+  public includeAttributes = (): string[] => {
+    return [
+      'formattedInvoiceDate',
+      'formattedDueDate',
+      'formattedAmount',
+      'formattedDueAmount',
+      'formattedPaymentAmount',
+      'formattedBalanceAmount',
+      'formattedExchangeRate',
+    ];
+  };
+
+  /**
+   * Retrieve formatted invoice date.
+   * @param {ISaleInvoice} invoice
+   * @returns {String}
+   */
+  protected formattedInvoiceDate = (invoice): string => {
+    return this.formatDate(invoice.invoiceDate);
+  };
+
+  /**
+   * Retrieve formatted due date.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedDueDate = (invoice): string => {
+    return this.formatDate(invoice.dueDate);
+  };
+
+  /**
+   * Retrieve formatted invoice amount.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedAmount = (invoice): string => {
+    return formatNumber(invoice.balance, {
+      currencyCode: invoice.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieve formatted invoice due amount.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedDueAmount = (invoice): string => {
+    return formatNumber(invoice.dueAmount, {
+      currencyCode: invoice.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieve formatted payment amount.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedPaymentAmount = (invoice): string => {
+    return formatNumber(invoice.paymentAmount, {
+      currencyCode: invoice.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieve the formatted invoice balance.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedBalanceAmount = (invoice): string => {
+    return formatNumber(invoice.balanceAmount, {
+      currencyCode: invoice.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieve the formatted exchange rate.
+   * @param {ISaleInvoice} invoice
+   * @returns {string}
+   */
+  protected formattedExchangeRate = (invoice): string => {
+    return formatNumber(invoice.exchangeRate, { money: false });
+  };
+}