feat: discount formatted attributes of sale transactions

packages/server/src/services/CreditNotes/CreditNoteTransformer.ts

@@ -18,6 +18,9 @@ export class CreditNoteTransformer extends Transformer {
       'formattedAmount',
       'formattedCreditsUsed',
       'formattedSubtotal',
+      'discountAmountFormatted',
+      'discountPercentageFormatted',
+      'adjustmentFormatted',
       'entries',
       'attachments',
     ];
@@ -83,6 +86,40 @@ export class CreditNoteTransformer extends Transformer {
     return formatNumber(credit.amount, { money: false });
   };
 
+
+  /**
+   * Retrieves formatted discount amount.
+   * @param credit 
+   * @returns {string}
+   */
+  protected discountAmountFormatted = (credit): string => {
+    return formatNumber(credit.discountAmount, {
+      currencyCode: credit.currencyCode,
+    });
+  };
+
+  /**
+   * Retrieves formatted discount percentage.
+   * @param credit 
+   * @returns {string}
+   */
+  protected discountPercentageFormatted = (credit): string => {
+    return credit.discountPercentage
+      ? `${credit.discountPercentage}%`
+      : '';
+  };
+
+  /**
+   * Retrieves formatted adjustment amount.
+   * @param credit 
+   * @returns {string}
+   */
+  protected adjustmentFormatted = (credit): string => {
+    return this.formatMoney(credit.adjustment, {
+      currencyCode: credit.currencyCode,
+    });
+  };
+
   /**
    * Retrieves the entries of the credit note.
    * @param {ICreditNote} credit