added fix for deployment race condition

controller/internal/web/templates.go

@@ -42,6 +42,19 @@ const layoutTmpl = `
         var card = e.target.closest('[data-href]');
         if (card) window.location.href = card.dataset.href;
     });
+    async function checkBeforeDeploy(e, name) {
+        try {
+            var resp = await fetch('/api/stacks/' + name);
+            var data = await resp.json();
+            if (data.ok && data.data && data.data.deployed) {
+                e.preventDefault();
+                alert('Ez az alkalmazás már telepítve van.');
+                window.location.reload();
+                return false;
+            }
+        } catch(err) {}
+        return true;
+    }
     async function syncTemplates() {
         const btn = document.getElementById('sync-btn');
         const toast = document.getElementById('sync-toast');
@@ -189,7 +202,7 @@ const dashboardTmpl = `
             {{if .Protected}}
                 <span class="badge badge-protected">Védett</span>
             {{else if not .Deployed}}
-                <a href="/stacks/{{.Name}}/deploy" class="btn btn-sm btn-primary">Telepítés</a>
+                <a href="/stacks/{{.Name}}/deploy" class="btn btn-sm btn-primary" onclick="return checkBeforeDeploy(event, '{{.Name}}')">Telepítés</a>
             {{else}}
                 {{if isOperational .State}}
                     <button class="btn btn-sm btn-warning" onclick="stackAction('{{.Name}}', 'restart')">↻</button>
@@ -267,7 +280,7 @@ const stacksTmpl = `
             {{if .Protected}}
                 <span class="badge badge-protected">Védett rendszerkomponens</span>
             {{else if not .Deployed}}
-                <a href="/stacks/{{.Name}}/deploy" class="btn btn-primary">Telepítés</a>
+                <a href="/stacks/{{.Name}}/deploy" class="btn btn-primary" onclick="return checkBeforeDeploy(event, '{{.Name}}')">Telepítés</a>
                 <a href="{{appPageURL .Meta.Slug}}" class="btn btn-outline">Részletek</a>
             {{else}}
                 {{if isOperational .State}}