sent,mark sent

server.js

@@ -177,7 +177,7 @@ async function exportInvoiceToQbo(invoiceId, client) {
         "TxnDate": invoice.invoice_date.toISOString().split('T')[0],
         "Line": lineItems,
         "CustomerMemo": { "value": invoice.auth_code ? `Auth: ${invoice.auth_code}` : "" },
-        "EmailStatus": "EmailSent",
+        "EmailStatus": "NotSet",
         "BillEmail": { "Address": invoice.email || "" }
     };
 
@@ -292,7 +292,6 @@ async function syncInvoiceToQbo(invoiceId, client) {
 }
 
 
-
 // Logo endpoints
 app.get('/api/logo-info', async (req, res) => {
     try {
@@ -833,6 +832,7 @@ app.post('/api/invoices', async (req, res) => {
     }
 });
 
+
 app.post('/api/quotes/:id/convert-to-invoice', async (req, res) => {
     const { id } = req.params;
     
@@ -1062,6 +1062,69 @@ app.delete('/api/invoices/:id', async (req, res) => {
     }
 });
 
+app.patch('/api/invoices/:id/email-status', async (req, res) => {
+    const { id } = req.params;
+    const { status } = req.body; // 'sent' or 'open'
+
+    if (!['sent', 'open'].includes(status)) {
+        return res.status(400).json({ error: 'Status must be "sent" or "open".' });
+    }
+
+    try {
+        const invResult = await pool.query('SELECT qbo_id FROM invoices WHERE id = $1', [id]);
+        if (invResult.rows.length === 0) return res.status(404).json({ error: 'Invoice not found' });
+
+        const invoice = invResult.rows[0];
+
+        // QBO updaten falls vorhanden
+        if (invoice.qbo_id) {
+            const oauthClient = getOAuthClient();
+            const companyId = oauthClient.getToken().realmId;
+            const baseUrl = process.env.QBO_ENVIRONMENT === 'production'
+                ? 'https://quickbooks.api.intuit.com'
+                : 'https://sandbox-quickbooks.api.intuit.com';
+
+            // SyncToken holen
+            const qboRes = await makeQboApiCall({
+                url: `${baseUrl}/v3/company/${companyId}/invoice/${invoice.qbo_id}`,
+                method: 'GET'
+            });
+            const qboData = qboRes.getJson ? qboRes.getJson() : qboRes.json;
+            const syncToken = qboData.Invoice?.SyncToken;
+
+            if (syncToken !== undefined) {
+                const emailStatus = status === 'sent' ? 'EmailSent' : 'NotSet';
+
+                await makeQboApiCall({
+                    url: `${baseUrl}/v3/company/${companyId}/invoice`,
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({
+                        Id: invoice.qbo_id,
+                        SyncToken: syncToken,
+                        sparse: true,
+                        EmailStatus: emailStatus
+                    })
+                });
+
+                console.log(`✅ QBO Invoice ${invoice.qbo_id} email status → ${emailStatus}`);
+            }
+        }
+
+        // Lokal updaten
+        await pool.query(
+            'UPDATE invoices SET email_status = $1, updated_at = CURRENT_TIMESTAMP WHERE id = $2',
+            [status, id]
+        );
+
+        res.json({ success: true, status });
+
+    } catch (error) {
+        console.error('Error updating email status:', error);
+        res.status(500).json({ error: 'Failed to update status: ' + error.message });
+    }
+});
+
 // PDF Generation code continues below...
 
 // PDF Generation using templates and persistent browser