Fix email template preview UX and debug template loading

- Convert EmailTemplatePreview from bottom card to modal Dialog component
- Replace problematic bottom preview with clean modal popup
- Add proper modal state management (open/close handlers)
- Debug template loading with comprehensive error handling and logging
- Add user feedback for template seeding and loading errors
- Improve fetchData() and seedTemplates() with try-catch blocks
- Add console logging for debugging template initialization

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/components/admin/EmailTemplatePreview.tsx

@@ -3,8 +3,16 @@ import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { Alert, AlertDescription } from '@/components/ui/alert';
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+  DialogFooter,
+} from '@/components/ui/dialog';
 import { toast } from '@/hooks/use-toast';
-import { Eye, Send, Mail } from 'lucide-react';
+import { Eye, Send, Mail, X } from 'lucide-react';
 import { EmailTemplateRenderer, ShortcodeProcessor } from '@/lib/email-templates/master-template';
 
 interface NotificationTemplate {
@@ -22,9 +30,17 @@ interface EmailTemplatePreviewProps {
   template: NotificationTemplate;
   onTest?: (template: NotificationTemplate) => void;
   isTestSending?: boolean;
+  open: boolean;
+  onClose: () => void;
 }
 
-export function EmailTemplatePreview({ template, onTest, isTestSending = false }: EmailTemplatePreviewProps) {
+export function EmailTemplatePreview({
+  template,
+  onTest,
+  isTestSending = false,
+  open,
+  onClose
+}: EmailTemplatePreviewProps) {
   const [previewMode, setPreviewMode] = useState<'master' | 'content'>('master');
   const [testEmail, setTestEmail] = useState('');
   const [showTestForm, setShowTestForm] = useState(false);
@@ -60,109 +76,154 @@ export function EmailTemplatePreview({ template, onTest, isTestSending = false }
   const previewHtml = generatePreview();
 
   return (
-    <div className="space-y-4">
-      {/* Preview Controls */}
-      <div className="flex items-center justify-between">
-        <div className="flex items-center gap-4">
-          <Label>Preview Mode:</Label>
-          <select
-            value={previewMode}
-            onChange={(e) => setPreviewMode(e.target.value as 'master' | 'content')}
-            className="border-2 px-3 py-1 rounded"
-          >
-            <option value="master">Master Template</option>
-            <option value="content">Content Only</option>
-          </select>
-        </div>
-
-        <div className="flex items-center gap-2">
+    <Dialog open={open} onOpenChange={onClose}>
+      <DialogContent className="max-w-4xl max-h-[90vh] overflow-auto">
+        <DialogHeader>
+          <DialogTitle className="flex items-center gap-2">
+            <Mail className="w-5 h-5" />
+            Preview: {template.name}
+          </DialogTitle>
+          <DialogDescription>
+            Preview template email dengan master styling
+          </DialogDescription>
           <Button
-            variant="outline"
-            size="sm"
-            onClick={() => setShowTestForm(!showTestForm)}
+            variant="ghost"
+            size="icon"
+            onClick={onClose}
           >
-            <Send className="w-4 h-4 mr-2" />
-            {showTestForm ? 'Cancel' : 'Test Email'}
+            <X className="w-4 h-4" />
           </Button>
-        </div>
-      </div>
+        </DialogHeader>
 
-      {/* Test Email Form */}
-      {showTestForm && (
-        <div className="p-4 border-2 border-gray-300 rounded-lg bg-gray-50">
-          <div className="space-y-3">
-            <Label htmlFor="test-email">Test Email Address:</Label>
-            <div className="flex gap-2">
-              <Input
-                id="test-email"
-                type="email"
-                value={testEmail}
-                onChange={(e) => setTestEmail(e.target.value)}
-                placeholder="test@example.com"
-                className="flex-1"
-              />
-              <Button
-                onClick={handleTestEmail}
-                disabled={!testEmail || isTestSending}
+        <div className="space-y-4">
+          {/* Preview Controls */}
+          <div className="flex items-center justify-between">
+            <div className="flex items-center gap-4">
+              <Label>Preview Mode:</Label>
+              <select
+                value={previewMode}
+                onChange={(e) => setPreviewMode(e.target.value as 'master' | 'content')}
+                className="border-2 px-3 py-1 rounded"
               >
-                <Mail className="w-4 h-4 mr-2" />
-                {isTestSending ? 'Sending...' : 'Send Test'}
+                <option value="master">Master Template</option>
+                <option value="content">Content Only</option>
+              </select>
+            </div>
+
+            <div className="flex items-center gap-2">
+              <Button
+                variant="outline"
+                size="sm"
+                onClick={() => setShowTestForm(!showTestForm)}
+              >
+                <Send className="w-4 h-4 mr-2" />
+                {showTestForm ? 'Cancel' : 'Test Email'}
               </Button>
             </div>
-            <p className="text-sm text-muted-foreground">
-              This will send a test email with dummy data for all available shortcodes.
-            </p>
           </div>
-        </div>
-      )}
 
-      {/* Preview Info */}
-      <Alert>
-        <Eye className="w-4 h-4" />
-        <AlertDescription>
-          {previewMode === 'master'
-            ? 'Showing complete email template with header, footer, and styling applied.'
-            : 'Showing only the content section without master template styling.'
-          }
-        </AlertDescription>
-      </Alert>
+          {/* Test Email Form */}
+          {showTestForm && (
+            <div className="p-4 border-2 border-gray-300 rounded-lg bg-gray-50">
+              <div className="space-y-3">
+                <Label htmlFor="test-email">Test Email Address:</Label>
+                <div className="flex gap-2">
+                  <Input
+                    id="test-email"
+                    type="email"
+                    value={testEmail}
+                    onChange={(e) => setTestEmail(e.target.value)}
+                    placeholder="test@example.com"
+                    className="flex-1"
+                  />
+                  <Button
+                    onClick={handleTestEmail}
+                    disabled={!testEmail || isTestSending}
+                  >
+                    <Mail className="w-4 h-4 mr-2" />
+                    {isTestSending ? 'Sending...' : 'Send Test'}
+                  </Button>
+                </div>
+                <p className="text-sm text-muted-foreground">
+                  This will send a test email with dummy data for all available shortcodes.
+                </p>
+              </div>
+            </div>
+          )}
 
-      {/* Email Preview */}
-      <div className="border-2 border-gray-300 rounded-lg overflow-hidden">
-        <div className="bg-gray-100 px-4 py-2 border-b border-gray-300">
-          <span className="text-sm font-mono text-gray-600">
-            {previewMode === 'master' ? 'Full Email Preview' : 'Content Preview'}
-          </span>
-        </div>
-        <div className="bg-white" style={{ height: '600px', overflow: 'hidden' }}>
-          <iframe
-            srcDoc={previewHtml}
-            className="w-full h-full border-0"
-            style={{
-              height: '100%',
-              overflow: 'hidden'
-            }}
-            sandbox="allow-same-origin"
-            scrolling="no"
-          />
-        </div>
-      </div>
+          {/* Preview Info */}
+          <Alert>
+            <Eye className="w-4 h-4" />
+            <AlertDescription>
+              {previewMode === 'master'
+                ? 'Showing complete email template with header, footer, and styling applied.'
+                : 'Showing only the content section without master template styling.'
+              }
+            </AlertDescription>
+          </Alert>
 
-      {/* Shortcodes Used */}
-      <div className="p-3 bg-blue-50 border border-blue-200 rounded">
-        <h4 className="font-semibold text-sm mb-2">Shortcodes Used in This Template:</h4>
-        <div className="grid grid-cols-2 gap-2 text-sm">
-          {['{nama}', '{email}', '{order_id}', '{tanggal_pesanan}', '{total}', '{metode_pembayaran}',
-           '{produk}', '{link_akses}', '{tanggal_konsultasi}', '{jam_konsultasi}', '{link_meet}',
-           '{judul_event}', '{tanggal_event}', '{jam_event}', '{link_event}'].filter(shortcode =>
-             template.email_subject.includes(shortcode) || template.email_body_html.includes(shortcode)
-          ).map(shortcode => (
-            <code key={shortcode} className="bg-blue-100 px-2 py-1 rounded text-xs">
-              {shortcode}
-            </code>
-          ))}
+          {/* Email Preview */}
+          <div className="border-2 border-gray-300 rounded-lg overflow-hidden">
+            <div className="bg-gray-100 px-4 py-2 border-b border-gray-300">
+              <span className="text-sm font-mono text-gray-600">
+                {previewMode === 'master' ? 'Full Email Preview' : 'Content Preview'}
+              </span>
+            </div>
+            <div className="bg-white" style={{ height: '500px', overflow: 'hidden' }}>
+              <iframe
+                srcDoc={previewHtml}
+                className="w-full h-full border-0"
+                style={{
+                  height: '100%',
+                  overflow: 'hidden'
+                }}
+                sandbox="allow-same-origin"
+                scrolling="no"
+              />
+            </div>
+          </div>
+
+          {/* Shortcodes Used */}
+          <div className="p-3 bg-blue-50 border border-blue-200 rounded">
+            <h4 className="font-semibold text-sm mb-2">Shortcodes Used in This Template:</h4>
+            <div className="grid grid-cols-2 gap-2 text-sm">
+              {['{nama}', '{email}', '{order_id}', '{tanggal_pesanan}', '{total}', '{metode_pembayaran}',
+               '{produk}', '{link_akses}', '{tanggal_konsultasi}', '{jam_konsultasi}', '{link_meet}',
+               '{judul_event}', '{tanggal_event}', '{jam_event}', '{link_event}'].filter(shortcode =>
+                 template.email_subject.includes(shortcode) || template.email_body_html.includes(shortcode)
+              ).map(shortcode => (
+                <code key={shortcode} className="bg-blue-100 px-2 py-1 rounded text-xs">
+                  {shortcode}
+                </code>
+              ))}
+            </div>
+          </div>
+
+          {/* Template Actions */}
+          <DialogFooter>
+            <Button variant="outline" onClick={onClose}>
+              Close
+            </Button>
+            {!showTestForm && (
+              <Button
+                onClick={() => setShowTestForm(true)}
+                className="flex-1"
+              >
+                <Send className="w-4 h-4 mr-2" />
+                Test Email
+              </Button>
+            )}
+            {showTestForm && (
+              <Button
+                onClick={() => setShowTestForm(false)}
+                variant="outline"
+              >
+                Cancel
+              </Button>
+            )}
+          </DialogFooter>
         </div>
-      </div>
-    </div>
+      </DialogContent>
+    </Dialog>
   );
 }

src/components/admin/settings/NotifikasiTab.tsx

@@ -346,36 +346,93 @@ export function NotifikasiTab() {
   const [loading, setLoading] = useState(true);
   const [expandedTemplates, setExpandedTemplates] = useState<Set<string>>(new Set());
   const [testingTemplate, setTestingTemplate] = useState<string | null>(null);
-  const [selectedTemplate, setSelectedTemplate] = useState<NotificationTemplate | null>(null);
-  const [previewMode, setPreviewMode] = useState<'master' | 'content'>('master');
+  const [previewTemplate, setPreviewTemplate] = useState<NotificationTemplate | null>(null);
+  const [isPreviewOpen, setIsPreviewOpen] = useState(false);
 
   useEffect(() => {
     fetchData();
   }, []);
 
   const fetchData = async () => {
-    // Fetch templates
-    const { data: templatesData } = await supabase.from('notification_templates').select('*').order('key');
-    if (templatesData && templatesData.length > 0) {
-      setTemplates(templatesData);
-    } else {
-      // Seed default templates if none exist
-      await seedTemplates();
+    try {
+      console.log('Fetching templates...');
+      // Fetch templates
+      const { data: templatesData, error: fetchError } = await supabase.from('notification_templates').select('*').order('key');
+
+      if (fetchError) {
+        console.error('Error fetching templates:', fetchError);
+        toast({
+          title: 'Error',
+          description: 'Gagal mengambil template: ' + fetchError.message,
+          variant: 'destructive'
+        });
+        setLoading(false);
+        return;
+      }
+
+      console.log('Templates data:', templatesData);
+
+      if (templatesData && templatesData.length > 0) {
+        console.log('Setting templates from database:', templatesData.length);
+        setTemplates(templatesData);
+      } else {
+        console.log('No templates found, seeding default templates...');
+        // Seed default templates if none exist
+        await seedTemplates();
+      }
+    } catch (error) {
+      console.error('Unexpected error in fetchData:', error);
+      toast({
+        title: 'Error',
+        description: 'Terjadi kesalahan tak terduga saat mengambil data',
+        variant: 'destructive'
+      });
+    } finally {
+      setLoading(false);
     }
-    setLoading(false);
   };
 
   const seedTemplates = async () => {
-    const toInsert = DEFAULT_TEMPLATES.map(t => ({
-      key: t.key,
-      name: t.name,
-      is_active: false,
-      email_subject: t.defaultSubject,
-      email_body_html: t.defaultBody,
-      webhook_url: '',
-    }));
-    const { data, error } = await supabase.from('notification_templates').insert(toInsert).select();
-    if (!error && data) setTemplates(data);
+    try {
+      console.log('Seeding default templates...');
+      const toInsert = DEFAULT_TEMPLATES.map(t => ({
+        key: t.key,
+        name: t.name,
+        is_active: false,
+        email_subject: t.defaultSubject,
+        email_body_html: t.defaultBody,
+        webhook_url: '',
+      }));
+
+      console.log('Inserting templates:', toInsert.length);
+      const { data, error } = await supabase.from('notification_templates').insert(toInsert).select();
+
+      if (error) {
+        console.error('Error seeding templates:', error);
+        toast({
+          title: 'Error',
+          description: 'Gagal membuat template default: ' + error.message,
+          variant: 'destructive'
+        });
+        return;
+      }
+
+      console.log('Templates seeded successfully:', data);
+      if (data) {
+        setTemplates(data);
+        toast({
+          title: 'Berhasil',
+          description: `Berhasil membuat ${data.length} template default`
+        });
+      }
+    } catch (error) {
+      console.error('Unexpected error in seedTemplates:', error);
+      toast({
+        title: 'Error',
+        description: 'Terjadi kesalahan saat membuat template default',
+        variant: 'destructive'
+      });
+    }
   };
 
   
@@ -587,7 +644,8 @@ export function NotifikasiTab() {
                       <Button
                         onClick={() => {
                           updateTemplate(template);
-                          setSelectedTemplate(template);
+                          setPreviewTemplate(template);
+                          setIsPreviewOpen(true);
                         }}
                         className="shadow-sm flex-1"
                       >
@@ -620,33 +678,14 @@ export function NotifikasiTab() {
         </CardContent>
       </Card>
 
-      {/* Consolidated Email Preview */}
-      {selectedTemplate && (
-        <Card className="border-2 border-border">
-          <CardHeader>
-            <CardTitle className="flex items-center justify-between">
-              <span>Preview: {selectedTemplate.name}</span>
-              <Button
-                variant="outline"
-                size="sm"
-                onClick={() => setSelectedTemplate(null)}
-              >
-                Tutup Preview
-              </Button>
-            </CardTitle>
-            <CardDescription>
-              Preview template email dengan master styling
-            </CardDescription>
-          </CardHeader>
-          <CardContent>
-            <EmailTemplatePreview
-              template={selectedTemplate}
-              onTest={sendTestEmail}
-              isTestSending={testingTemplate === selectedTemplate.id}
-            />
-          </CardContent>
-        </Card>
-      )}
+      {/* Modal Email Preview */}
+      <EmailTemplatePreview
+        template={previewTemplate!}
+        open={isPreviewOpen}
+        onClose={() => setIsPreviewOpen(false)}
+        onTest={sendTestEmail}
+        isTestSending={testingTemplate === previewTemplate?.id}
+      />
     </div>
   );
 }