fix(admin-ui): Fix error when using non-standard currencyCode

Fixes #1768

packages/admin-ui/src/lib/core/src/shared/pipes/locale-currency.pipe.spec.ts

@@ -16,4 +16,13 @@ describe('LocaleCurrencyPipe', () => {
         expect(pipe.transform(123, CurrencyCode.EUR, LanguageCode.de)).toBe('1,23 €');
         expect(pipe.transform(4200000, CurrencyCode.EUR, LanguageCode.de)).toBe('42.000,00 €');
     });
+
+    // https://github.com/vendure-ecommerce/vendure/issues/1768
+    it('Custom currency code in English', () => {
+        const pipe = new LocaleCurrencyPipe();
+        const customCurrencyCode = 'FLTH';
+        expect(pipe.transform(1, customCurrencyCode, LanguageCode.en)).toBe('0.01');
+        expect(pipe.transform(123, customCurrencyCode, LanguageCode.en)).toBe('1.23');
+        expect(pipe.transform(4200000, customCurrencyCode, LanguageCode.en)).toBe('42000.00');
+    });
 });

packages/admin-ui/src/lib/core/src/shared/pipes/locale-currency.pipe.ts

@@ -30,9 +30,14 @@ export class LocaleCurrencyPipe extends LocaleBasePipe implements PipeTransform
         if (typeof value === 'number' && typeof currencyCode === 'string') {
             const activeLocale = this.getActiveLocale(locale);
             const majorUnits = value / 100;
-            return new Intl.NumberFormat(activeLocale, { style: 'currency', currency: currencyCode }).format(
-                majorUnits,
-            );
+            try {
+                return new Intl.NumberFormat(activeLocale, {
+                    style: 'currency',
+                    currency: currencyCode,
+                }).format(majorUnits);
+            } catch (e: any) {
+                return majorUnits.toFixed(2);
+            }
         }
         return value;
     }