refund front 1

cmd/web/templates/sale.page.gohtml

@@ -15,12 +15,20 @@
 </div>
 <hr>
 <a href='{{index .StringMap "cancel"}}' class="btn btn-info">Cancel</a>
-<a href="#!" class="btn btn-warning">Refund Order</a>
+<a id="refund-btn" href="#!" class="btn btn-warning">Refund Order</a>
+<input type="hidden" id="pi" value="">
+<input type="hidden" id="charge-amount" value="">
+<input type="hidden" id="currency" value="">
+
 {{end}}
 
 {{define "js"}}
+<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>
 <script type="module">
-    import {showInfo} from "/static/js/sale.js"
+    import {showInfo, refund} from "/static/js/sale.js"
     showInfo({{.API}});
+    document.getElementById("refund-btn").addEventListener("click", function(event) {
+        refund({{.API}});
+    });
 </script>
 {{end}}