Add discounts, fields, and PDF/email support to manual invoices.

Layout/default/ManualInvoice/PDF_HEADER.html

@@ -65,10 +65,12 @@
             <div>{{ addressLine_4 }}</div>
             <div>{{ addressLine_5 }}</div>
         </td>
-        <td style="float: right">
-            <table class="info-table">
+        <td style="vertical-align: top; text-align: right;">
+            <table style="display: inline-table; vertical-align: top;">
                 <tr>
-                    <td></td>
+                    <td style="vertical-align: top; padding-right: 10px;">
+                        <img alt="QR-Code" src="{{ qrCodeSrc }}" style="display: block; height: 100%; max-height: 3.5cm; width: auto;">
+                    </td>
                     <td>
                         <table class="invoice-details">
                             <tr>
@@ -87,16 +89,14 @@
                                 <td>Belegdatum:</td>
                                 <td>{{ invoiceDate }}</td>
                             </tr>
+                            {{ leistungszeitraumHtml }}
+                            {{ externeReferenzHtml }}
                             {{ vatHtml }}
                         </table>
                     </td>
                 </tr>
             </table>
         </td>
-
-        <td style="float: right; vertical-align: top; margin-top: 0; padding-top: 0">
-            <img alt="QR-Code" src="{{ qrCodeSrc }}" style="text-align:right;height: 3.5cm;">
-        </td>
     </tr>
 </table>
 

Layout/default/ManualInvoice/PDF_MAIN.php

@@ -8,6 +8,43 @@ $net_total = $invoice->total;
 $gross_total = $invoice->total_gross;
 $is_credit = $net_total < 0;
 
+// Check if any position has a discount to conditionally show the discount column
+$hasDiscount = false;
+foreach($invoice->positions as $p) {
+    if (($p->discount ?? 0) > 0) {
+        $hasDiscount = true;
+        break;
+    }
+}
+
+$gesamtrabatt = $invoice->gesamtrabatt ?? 0;
+$subtotal = 0;
+foreach($invoice->positions as $p) {
+    $subtotal += $p->price_total ?? 0;
+}
+
+// Group positions by position_group
+$groupedPositions = [];
+$hasGroups = false;
+foreach($invoice->positions as $p) {
+    if (!empty($p->position_group)) {
+        $hasGroups = true;
+    }
+}
+
+// If no positions have groups, put all in default (no group header will be shown)
+if (!$hasGroups) {
+    $groupedPositions['_default'] = $invoice->positions;
+} else {
+    foreach($invoice->positions as $p) {
+        $group = $p->position_group ?? 'Sonstige';
+        if (!isset($groupedPositions[$group])) {
+            $groupedPositions[$group] = [];
+        }
+        $groupedPositions[$group][] = $p;
+    }
+}
+
 $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
 
 ?>
@@ -48,12 +85,18 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
             height: 28px;
         }
 
-        #invoiceTable tr *:nth-child(5),
+        #invoiceTable tr *:nth-child(2),
         #invoiceTable tr *:nth-child(4),
-        #invoiceTable tr *:nth-child(3) {
+        #invoiceTable tr *:nth-child(5),
+        #invoiceTable tr *:nth-child(6),
+        #invoiceTable tr *:nth-child(7) {
             text-align: right;
         }
 
+        #invoiceTable tr *:nth-child(3) {
+            text-align: center;
+        }
+
         #invoiceTable tr *:not(:first-child) {
             padding: 4px 0;
         }
@@ -72,7 +115,7 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
         }
 
         #invoiceTable tr td:first-child {
-            max-width: 200pt;
+            max-width: 280pt;
         }
 
     </style>
@@ -84,88 +127,77 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
 
     <h2 style="text-align: center;color: #005384">Ihre Xinon <?=($is_credit) ? "Gutschrift" : "Rechnung"?> vom <?=date("d.m.Y",$invoice->invoice_date)?></h2>
 
+    <?php if($invoice->einleitender_text ?? ''): ?>
+        <p style="margin-top: 10pt; margin-bottom: 20pt; text-align: center; font-weight: bold;"><?=nl2br(htmlspecialchars($invoice->einleitender_text))?></p>
+    <?php endif; ?>
+
     <table style="border-collapse: collapse; width: 100%;" id="invoiceTable">
         <tr style="font-weight: bold; border-bottom: 1px solid black;" class="uneven">
             <th style="text-align: center">Leistung / Produkt</th>
-            <th style="text-align: center">Zeitraum</th>
             <th style="text-align: right">Preis</th>
             <th style="text-align: center">Menge</th>
+            <?php if($hasDiscount): ?><th style="text-align: right">Rabatt %</th><?php endif; ?>
             <th style="text-align: right">Netto €</th>
             <th style="text-align: right">Ust. %</th>
             <th style="text-align: right; padding-right: 4pt">Brutto €</th>
         </tr>
         <?php
         $i = 0;
-        foreach($invoice->positions as $p):
-        $timerange_month_only = method_exists($p, 'getOption') ? $p->getOption('timerange_month_only') : (isset($p->options) ? (json_decode($p->options, true)['timerange_month_only'] ?? false) : false);
-
-        // Handle dates safely
-        $start_date = null;
-        $end_date = null;
-        if (!empty($p->start_date)) {
-            try {
-                $start_date = new DateTime($p->start_date);
-            } catch (Exception $e) {
-                $start_date = null;
-            }
-        }
-        if (!empty($p->end_date)) {
-            try {
-                $end_date = new DateTime($p->end_date);
-            } catch (Exception $e) {
-                $end_date = $start_date;
-            }
-        } else {
-            $end_date = $start_date;
-        }
-
+        foreach($groupedPositions as $groupName => $positions):
+        ?>
+        <!-- Group Header (only show if not default) -->
+        <?php if ($groupName !== '_default'): ?>
+        <tr style="background-color: #d9d9d9; font-weight: bold;">
+            <td colspan="<?=$hasDiscount ? '7' : '6'?>" style="padding: 6px 4pt; border-top: 1px solid black; text-align: left;">
+                <?=htmlspecialchars($groupName)?>
+            </td>
+        </tr>
+        <?php endif; ?>
+        <?php
+        foreach($positions as $p):
         $amount = (float) number_format($p->amount ?? 0, 3, ",", ".");
+        $unit = htmlspecialchars($p->unit ?? 'Stk.');
         $price = number_format($p->price ?? 0, 2, ",",".");
+        $discount = $p->discount ?? 0;
         $price_total = number_format($p->price_total ?? 0, 2, ",",".");
         $price_gross = number_format($p->price_gross ?? 0, 2, ",",".");
         $vatrate = number_format($p->vatrate ?? 0, 0, ",",".");
-
         ?>
 
         <tr class="position <?=($i%2 == 0) ? "even" : "uneven" ?>">
-            <td>
+            <td style="padding-left: 4pt; vertical-align: top;">
                 <?=htmlspecialchars($p->product_name ?? '')?>
+                <?php if(isset($p->product_info) && $p->product_info): ?>
+                <div style="padding-left: 12pt; font-size: 10px; color: #666;"><?=htmlspecialchars($p->product_info)?></div>
+                <?php endif; ?>
                 <?php if(isset($p->matchcode) && $p->matchcode): ?>
-                <div style="padding-left: 12pt"><?=htmlspecialchars($p->matchcode)?></div>
+                <div style="padding-left: 12pt; font-size: 10px; color: #666;"><?=htmlspecialchars($p->matchcode)?></div>
                 <?php endif; ?>
             </td>
-            <td style="text-align: center;">
-                <?php if($start_date && $end_date): ?>
-                    <?php if($timerange_month_only): ?>
-                        <?=$start_date->format("m.Y")?>
-                    <?php elseif(isset($p->billing_period) && $p->billing_period > 1): ?>
-                        <?=$start_date->format("m.Y")?> - <?=$end_date->format("m.Y") ?>
-                    <?php else: ?>
-                        <?php if($start_date->format("d.m.Y") == $end_date->format("d.m.Y")): ?>
-                            <?=$start_date->format("d.m.Y")?>
-                        <?php else: ?>
-                            <?=$start_date->format("d.m.Y")?> - <?=$end_date->format("d.m.Y") ?>
-                        <?php endif; ?>
-                    <?php endif; ?>
-                <?php elseif($start_date): ?>
-                    <?=$start_date->format("d.m.Y")?>
-                <?php else: ?>
-                    -
-                <?php endif; ?>
-
-            </td>
-            <td><?=$price?> €</td>
-            <td style="text-align: center"><?=$amount?></td>
-            <td><?=$price_total?> €</td>
-            <td style="text-align: right;"><?=$vatrate?>%</td>
-            <td style="padding-right: 4pt;"><?=$price_gross?> €</td>
+            <td style="text-align: right; padding: 4px 0;"><?=$price?> €</td>
+            <td style="text-align: center; padding: 4px 0;"><?=$amount?> <?=$unit?></td>
+            <?php if($hasDiscount): ?><td style="text-align: right; padding: 4px 0;"><?=number_format($discount, 2, ",", ".")?>%</td><?php endif; ?>
+            <td style="text-align: right; padding: 4px 0;"><?=$price_total?> €</td>
+            <td style="text-align: right; padding: 4px 0;"><?=$vatrate?>%</td>
+            <td style="text-align: right; padding: 4px 0; padding-right: 4pt;"><?=$price_gross?> €</td>
         </tr>
         <?php
         $i++;
         endforeach;
+        endforeach;
         ?>
-        <tr style="font-weight: bold; background-color: #ebebeb; border-bottom: 1px solid black;border-top: 1px solid black">
-            <td colspan="5">Gesamt Netto:</td>
+        <?php if($gesamtrabatt > 0): ?>
+        <tr style="background-color: #ebebeb; border-top: 2px solid black;">
+            <td colspan="<?=$hasDiscount ? '5' : '4'?>" style="padding: 4px 0;">Zwischensumme:</td>
+            <td colspan="2" style="text-align: right; padding-right: 4pt;"><?=number_format($subtotal, 2, ",","."). " €"?></td>
+        </tr>
+        <tr style="background-color: #ebebeb; border-bottom: 1px solid #ccc;">
+            <td colspan="<?=$hasDiscount ? '5' : '4'?>" style="padding: 4px 0;">Gesamtrabatt <?=number_format($gesamtrabatt, 2, ",", ".")?>%:</td>
+            <td colspan="2" style="text-align: right; padding-right: 4pt; color: #d32f2f;">-<?=number_format($subtotal * ($gesamtrabatt / 100), 2, ",","."). " €"?></td>
+        </tr>
+        <?php endif; ?>
+        <tr style="font-weight: bold; background-color: #ebebeb; border-bottom: 1px solid black;<?=($gesamtrabatt > 0) ? '' : 'border-top: 2px solid black;'?>">
+            <td colspan="<?=$hasDiscount ? '5' : '4'?>" style="padding: 4px 0;">Gesamt Netto:</td>
             <td colspan="2" style="text-align: right; padding-right: 4pt;"><?=number_format($net_total, 2, ",","."). " €"?></td>
         </tr>
 
@@ -173,7 +205,7 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
 
         <?php if($rate > 0): ?>
             <tr style="font-size: 11px;border-bottom: 1px solid black;">
-                <td colspan="5">USt. <?=number_format($rate, 0, ",", ".")?>%:</td>
+                <td colspan="<?=$hasDiscount ? '5' : '4'?>" style="padding: 4px 0;">USt. <?=number_format($rate, 0, ",", ".")?>%:</td>
                 <td colspan="2" style="text-align: right; padding-right: 4pt;"><?=number_format($vat_total, 2, ",","."). " €"?></td>
             </tr>
         <?php endif; ?>
@@ -182,7 +214,7 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
 
         <!-- double underline border on bottom -->
         <tr style="font-weight: bold; border-bottom: 3px double black; background-color: #ebebeb;">
-            <td colspan="5">Gesamt Brutto:</td>
+            <td colspan="<?=$hasDiscount ? '5' : '4'?>" style="padding: 4px 0;">Gesamt Brutto:</td>
             <td colspan="2" style="text-align: right; padding-right: 4pt;"><?=number_format($gross_total, 2, ",","."). " €"?></td>
         </tr>
     </table>
@@ -193,14 +225,31 @@ $this->setReturnValue(['filename' => $invoice->invoice_number . ".pdf"]);
             <p style="font-weight: bold;"><?=$invoice->tax_text?></p>
         <?php endif; ?>
         <?php if($is_credit): ?>
-            <p style="color: #FF0000; font-weight: bold">Gutschrift! Bitte nicht überweisen.</p>
+            <p style="color: #FF0000; font-weight: bold; text-align: center;">Gutschrift! Bitte nicht überweisen.</p>
         <?php elseif($invoice->billing_type == "sepa"): ?>
-            <p style="color: #FF0000; font-weight: bold">BITTE NICHT EINZAHLEN, DER BETRAG WIRD AUTOMATISCH VON IHREM KONTO ABGEBUCHT !</p>
+            <p style="color: #FF0000; font-weight: bold; text-align: center;">BITTE NICHT EINZAHLEN – DER BETRAG WIRD AUTOMATISCH VON IHREM KONTO ABGEBUCHT!</p>
         <?php else: ?>
-            Bitte <b>überweisen</b> Sie den Rechnungsbetrag bis zum &nbsp;<b><?=(new DateTime("@".$invoice->invoice_date))->modify("+14 days")->format("d.m.Y")?></b> auf folgendes Konto:<br />
-            <b style="padding-left: 4pt;">IBAN: <?=$bank_iban?></b><br />
-            <b style="padding-left: 4pt;">BIC: <?=$bank_bic?></b><br /><br />
-            Bitte geben Sie als Verwendungszweck unbedingt die Rechnungsnummer an, nur so können wir Ihre Zahlung eindeutig zuordnen
+            <div style="border-top: 1px solid #ccc; padding-top: 10pt; margin-top: 10pt;">
+                <p style="margin-bottom: 8pt;">
+                    <strong>Zahlungsinformationen:</strong>
+                </p>
+                <p style="margin-bottom: 4pt;">
+                    Bitte überweisen Sie den Rechnungsbetrag bis zum <strong><?=(new DateTime("@".$invoice->invoice_date))->modify("+14 days")->format("d.m.Y")?></strong> auf folgendes Konto:
+                </p>
+                <table style="margin-left: 20pt; margin-bottom: 12pt;">
+                    <tr><td style="width: 100pt;"><strong>IBAN:</strong></td><td><?=$bank_iban?></td></tr>
+                    <tr><td><strong>BIC:</strong></td><td><?=$bank_bic?></td></tr>
+                    <tr><td><strong>Bank:</strong></td><td><?=$bank_bank?></td></tr>
+                </table>
+                <div style="background-color: #f5f5f5; padding: 10pt; border-left: 3px solid #005384; margin-top: 12pt;">
+                    <p style="margin: 0; margin-bottom: 4pt; font-size: 14px;">
+                        <strong>Verwendungszweck: <?=$invoice->invoice_number ?? "VORSCHAU"?></strong>
+                    </p>
+                    <p style="margin: 0; font-size: 10px; color: #666;">
+                        Wichtig: Bitte geben Sie den oben angeführten Verwendungszweck bei der Überweisung an, damit wir Ihre Zahlung eindeutig zuordnen können.
+                    </p>
+                </div>
+            </div>
         <?php endif; ?>
     </div>
 

application/ManualInvoice/ManualInvoiceController.php

@@ -1,5 +1,8 @@
 <?php
 
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\Exception;
+
 class ManualInvoiceController extends TTCrud
 {
     protected string $headerTitle = 'Manuelle Rechnungen';
@@ -19,9 +22,9 @@ class ManualInvoiceController extends TTCrud
         ['key' => 'total', 'text' => 'Netto', 'table' => ['sortable' => true, 'formatter' => 'formatPrice']],
         ['key' => 'total_gross', 'text' => 'Brutto', 'table' => ['sortable' => true, 'formatter' => 'formatPrice']],
         ['key' => 'status', 'text' => 'Status', 'table' => ['filter' => 'select', 'filterOptions' => [
-            ['value' => 'draft', 'text' => 'Entwurf'],
-            ['value' => 'finalized', 'text' => 'Finalisiert'],
-            ['value' => 'exported', 'text' => 'Exportiert'],
+            ['value' => 'erstellt', 'text' => 'Erstellt'],
+            ['value' => 'gesendet', 'text' => 'Gesendet'],
+            ['value' => 'exportiert', 'text' => 'Exportiert'],
         ]]],
         ['key' => 'billing_type', 'text' => 'Zahlungsart', 'table' => ['filter' => 'select', 'filterOptions' => [
             ['value' => 'invoice', 'text' => 'Rechnung'],
@@ -31,7 +34,9 @@ class ManualInvoiceController extends TTCrud
     ];
 
     protected array $additionalActions = [
-        ['key' => 'createGutschrift', 'title' => 'Gutschrift erstellen', 'class' => 'fas fa-file-invoice text-warning']
+        ['key' => 'createGutschrift', 'title' => 'Gutschrift erstellen', 'class' => 'fas fa-file-invoice text-warning'],
+        ['key' => 'pdfPreview', 'title' => 'PDF Vorschau', 'class' => 'fas fa-file-pdf text-danger'],
+        ['key' => 'sendInvoice', 'title' => 'Rechnung aussenden', 'class' => 'fas fa-paper-plane text-success']
     ];
 
     protected function createPDFAction($returnFilename = false) {
@@ -46,9 +51,23 @@ class ManualInvoiceController extends TTCrud
                 'company' => '', 'firstname' => '', 'lastname' => '',
                 'street' => '', 'zip' => '', 'city' => '', 'country' => 'Österreich',
                 'email' => '', 'uid' => '', 'tax_text' => '', 'billing_type' => 'invoice',
+                'leistungszeitraum' => '', 'einleitender_text' => '', 'externe_referenz' => '', 'gesamtrabatt' => 0,
                 'total' => 0, 'total_gross' => 0
             ], $post);
-            $positions = array_map(fn($p) => (object)$p, $post['positions'] ?? []);
+
+            // Convert invoice_date from string to timestamp if needed
+            if (isset($invoice->invoice_date) && is_string($invoice->invoice_date)) {
+                $invoice->invoice_date = strtotime($invoice->invoice_date);
+            }
+
+            $positions = array_map(function($p) {
+                $obj = (object)$p;
+                // Map _group to position_group for preview
+                if (isset($p['_group'])) {
+                    $obj->position_group = $p['_group'];
+                }
+                return $obj;
+            }, $post['positions'] ?? []);
         } else {
             $id = $this->request->id ?? $post['id'] ?? null;
             if (!$id || !($invoice = ManualInvoiceModel::get($id))) {
@@ -86,6 +105,8 @@ class ManualInvoiceController extends TTCrud
             "{{ billingAccount }}" => $invoice->fibu_account_number ?? '',
             "{{ invoiceNumber }}" => $invoice->invoice_number ?? "VORSCHAU",
             "{{ invoiceDate }}" => date("d.m.Y", $invoice->invoice_date ?? time()),
+            "{{ leistungszeitraumHtml }}" => ($invoice->leistungszeitraum ?? '') ? "<tr><td>Leistungszeitraum:</td><td>" . htmlspecialchars($invoice->leistungszeitraum) . "</td></tr>" : "",
+            "{{ externeReferenzHtml }}" => ($invoice->externe_referenz ?? '') ? "<tr><td>Externe Referenz:</td><td>" . htmlspecialchars($invoice->externe_referenz) . "</td></tr>" : "",
             "{{ vatHtml }}" => ($invoice->uid ?? '') ? "<tr><td>Ihre UID:</td><td>" . $invoice->uid . "</td></tr>" : "",
             "{{ qrCodeSrc }}" => $this->generateSepaQRCode($invoice->invoice_number ?? "VORSCHAU", round($invoice->total_gross ?? 0, 2))
         ];
@@ -134,6 +155,186 @@ class ManualInvoiceController extends TTCrud
         exit;
     }
 
+    protected function pdfPreviewAction() {
+        $post = json_decode(file_get_contents('php://input'), true);
+        $id = $post['id'] ?? null;
+
+        if (!$id || !($invoice = ManualInvoiceModel::get($id))) {
+            self::returnJson(['success' => false, 'message' => 'Rechnung nicht gefunden']);
+            return;
+        }
+
+        // Log PDF preview in journal
+        $me = new User();
+        $me->loadMe();
+        ManualInvoiceJournalModel::create([
+            'manualinvoiceId' => $id,
+            'text' => 'PDF Vorschau geöffnet',
+            'createBy' => $me->id,
+            'create' => time()
+        ]);
+
+        // Return URL to open in new tab
+        $url = "?action=ManualInvoice_createPDF&id=" . $id;
+        self::returnJson(['success' => true, 'url' => $url]);
+    }
+
+    protected function getInvoiceEmailAction() {
+        $post = json_decode(file_get_contents('php://input'), true);
+        $id = $post['id'] ?? null;
+
+        if (!$id || !($invoice = ManualInvoiceModel::get($id))) {
+            self::returnJson(['success' => false, 'message' => 'Rechnung nicht gefunden']);
+            return;
+        }
+
+        self::returnJson([
+            'success' => true,
+            'invoice' => [
+                'id' => $invoice->id,
+                'invoice_number' => $invoice->invoice_number,
+                'email' => $invoice->email,
+                'customerName' => trim(($invoice->company ?: '') . ' ' . $invoice->firstname . ' ' . $invoice->lastname)
+            ]
+        ]);
+    }
+
+    protected function sendInvoiceEmailAction() {
+        // Enable error reporting for debugging
+        error_reporting(E_ALL);
+        ini_set('display_errors', 1);
+        ini_set('display_startup_errors', 1);
+
+        $post = json_decode(file_get_contents('php://input'), true);
+        $id = $post['id'] ?? null;
+        $recipientEmail = $post['email'] ?? null;
+        $subject = $post['subject'] ?? 'Ihre Rechnung von XINON GmbH';
+        $bodyText = $post['body'] ?? 'Sehr geehrte Damen und Herren,\n\nanbei erhalten Sie Ihre Rechnung.\n\nMit freundlichen Grüßen\nIhr Xinon Team';
+
+        if (!$id || !$recipientEmail) {
+            self::returnJson(['success' => false, 'message' => 'ID oder E-Mail-Adresse fehlt']);
+            return;
+        }
+
+        $invoice = ManualInvoiceModel::get($id);
+        if (!$invoice) {
+            self::returnJson(['success' => false, 'message' => 'Rechnung nicht gefunden']);
+            return;
+        }
+
+        // Generate PDF
+        $pdf_filename = $this->createPDFAction(true);
+        if (!$pdf_filename || !file_exists($pdf_filename)) {
+            self::returnJson(['success' => false, 'message' => 'PDF konnte nicht erstellt werden']);
+            return;
+        }
+
+        $pdfContent = file_get_contents($pdf_filename);
+
+        // --- HTML Email Generation ---
+        $logoToolPath = BASEDIR . '/public/assets/images/the-tool-logo.png';
+        $logoXinonPath = BASEDIR . '/public/assets/images/xinon-full.png';
+        $logoToolExists = file_exists($logoToolPath);
+        $logoXinonExists = file_exists($logoXinonPath);
+
+        // Construct HTML Body
+        $html = '<!DOCTYPE html><html lang="de"><head><meta charset="UTF-8"><title>Rechnung</title><style>body { font-family: Arial, sans-serif; color: #333; }</style></head><body style="margin:0;padding:20px;background-color:#f3f4f6;">';
+        $html .= '<div style="background-color:#fff;padding:20px;border-radius:8px;max-width:600px;margin:0 auto;box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);">';
+
+        // Logos
+        $html .= '<div style="text-align:center;margin-bottom:20px;border-bottom: 1px solid #e5e7eb;padding-bottom: 15px;">';
+        if ($logoToolExists) $html .= '<img src="cid:logo_thetool" alt="The Tool" style="height:40px;margin-right:15px;vertical-align:middle;">';
+        if ($logoXinonExists) $html .= '<img src="cid:logo_xinon" alt="Xinon" style="height:40px;vertical-align:middle;">';
+        $html .= '</div>';
+
+        $html .= '<h2 style="color:#00558c;text-align:center;font-size:20px;margin-bottom:20px;">' . htmlspecialchars($subject) . '</h2>';
+        $html .= '<div style="font-size:14px;line-height:1.6;color:#333;">';
+        $html .= nl2br(htmlspecialchars($bodyText));
+        $html .= '</div>';
+
+        $html .= '<br><div style="border-top:1px solid #eee;padding-top:20px;font-size:12px;color:#999;text-align:center;">';
+        $html .= 'XINON GmbH | <a href="https://www.xinon.at" style="color:#00558c;text-decoration:none;">www.xinon.at</a>';
+        $html .= '</div></div></body></html>';
+
+        $mail = new PHPMailer(true);
+        try {
+            // Server settings
+            $mail->isSMTP();
+            $mail->Host       = TT_PIPEWORK_SMTP_HOST;
+            $mail->SMTPAuth   = true;
+            $mail->Username   = TT_PIPEWORK_SMTP_USER;
+            $mail->Password   = TT_PIPEWORK_SMTP_PASS;
+            $mail->CharSet    = PHPMailer::CHARSET_UTF8;
+            $mail->Encoding   = 'base64';
+            $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
+            $mail->Port       = 587;
+
+            // Logos
+            if ($logoToolExists) $mail->addEmbeddedImage($logoToolPath, 'logo_thetool');
+            if ($logoXinonExists) $mail->addEmbeddedImage($logoXinonPath, 'logo_xinon');
+
+            $mail->addReplyTo('backoffice@xinon.at', 'XINON Backoffice');
+            $mail->setFrom('thetool@xinon.at', 'XINON TheTool');
+
+            $customerName = trim(($invoice->company ?: '') . ' ' . $invoice->firstname . ' ' . $invoice->lastname);
+            $mail->addAddress($recipientEmail, $customerName);
+            $mail->Subject = $subject;
+            $mail->isHTML(true);
+            $mail->Body = $html;
+            $mail->AltBody = strip_tags($bodyText);
+
+            $mail->addStringAttachment($pdfContent, $invoice->invoice_number . '_Rechnung.pdf', 'base64', 'application/pdf');
+
+            $mail->send();
+
+            // Update invoice status
+            $invoice->status = 'gesendet';
+            $invoice->save();
+
+            // Add Journal Entry
+            $me = new User();
+            $me->loadMe();
+            ManualInvoiceJournalModel::create([
+                'manualinvoiceId' => $id,
+                'text' => "Rechnung per E-Mail an $recipientEmail gesendet.",
+                'statusChange' => 'gesendet',
+                'createBy' => $me->id,
+                'create' => time()
+            ]);
+
+            self::returnJson(['success' => true, 'message' => 'E-Mail erfolgreich versendet an ' . $recipientEmail]);
+        } catch (Exception $e) {
+            self::returnJson(['success' => false, 'message' => 'E-Mail konnte nicht gesendet werden. Fehler: ' . $mail->ErrorInfo]);
+        }
+    }
+
+    protected function downloadInvoiceAction() {
+        $post = json_decode(file_get_contents('php://input'), true);
+        $id = $post['id'] ?? null;
+
+        if (!$id || !($invoice = ManualInvoiceModel::get($id))) {
+            self::returnJson(['success' => false, 'message' => 'Rechnung nicht gefunden']);
+            return;
+        }
+
+        $me = new User();
+        $me->loadMe();
+
+        // Log download in journal
+        ManualInvoiceJournalModel::create([
+            'manualinvoiceId' => $id,
+            'text' => 'Rechnung heruntergeladen',
+            'createBy' => $me->id,
+            'create' => time()
+        ]);
+
+        $downloadUrl = "?action=ManualInvoice_downloadInvoicePdf&id=" . $id;
+        self::returnJson([
+            'success' => true,
+            'url' => $downloadUrl
+        ]);
+    }
+
     protected function beforeCreate(&$data): bool {
         if (isset($data['positions']) && is_array($data['positions'])) {
             $this->tempPositions = $data['positions'];
@@ -143,12 +344,18 @@ class ManualInvoiceController extends TTCrud
         $me = new User();
         $me->loadMe();
 
+        // Convert invoice_date from string to timestamp if needed
+        if (isset($data['invoice_date']) && is_string($data['invoice_date'])) {
+            $data['invoice_date'] = strtotime($data['invoice_date']);
+        }
+
         $data = array_merge([
             'invoice_number' => ManualInvoiceModel::getNextInvoiceNumber(),
-            'invoice_date' => time(),
-            'status' => 'draft',
+            'invoice_date' => $data['invoice_date'] ?? time(),
+            'status' => 'erstellt',
             'fibu_payment_skonto' => 0,
             'fibu_payment_skonto_rate' => 0,
+            'gesamtrabatt' => 0,
             'total' => 0,
             'total_gross' => 0,
             'create_by' => $me->id,
@@ -163,6 +370,17 @@ class ManualInvoiceController extends TTCrud
     protected function afterCreate($data) {
         $this->savePositions($data['id']);
         $this->recalculateTotals($data['id']);
+
+        // Log creation in journal
+        $me = new User();
+        $me->loadMe();
+        ManualInvoiceJournalModel::create([
+            'manualinvoiceId' => $data['id'],
+            'text' => 'Rechnung erstellt',
+            'statusChange' => 'erstellt',
+            'createBy' => $me->id,
+            'create' => time()
+        ]);
     }
 
     protected function beforeUpdate(&$data): bool {
@@ -171,11 +389,16 @@ class ManualInvoiceController extends TTCrud
             unset($data['positions']);
         }
 
-        if (isset($data['id']) && ($invoice = ManualInvoiceModel::get($data['id'])) && $invoice->status === 'exported') {
+        if (isset($data['id']) && ($invoice = ManualInvoiceModel::get($data['id'])) && $invoice->status === 'exportiert') {
             $this->infoMessages['update'] = 'Rechnung wurde bereits exportiert und kann nicht mehr bearbeitet werden';
             return false;
         }
 
+        // Convert invoice_date from string to timestamp if needed
+        if (isset($data['invoice_date']) && is_string($data['invoice_date'])) {
+            $data['invoice_date'] = strtotime($data['invoice_date']);
+        }
+
         $me = new User();
         $me->loadMe();
         $data['edit_by'] = $me->id;
@@ -190,6 +413,16 @@ class ManualInvoiceController extends TTCrud
 
         $this->savePositions($data['id']);
         $this->recalculateTotals($data['id']);
+
+        // Log update in journal
+        $me = new User();
+        $me->loadMe();
+        ManualInvoiceJournalModel::create([
+            'manualinvoiceId' => $data['id'],
+            'text' => 'Rechnung aktualisiert',
+            'createBy' => $me->id,
+            'create' => time()
+        ]);
     }
 
     private function savePositions($invoiceId) {
@@ -199,9 +432,18 @@ class ManualInvoiceController extends TTCrud
         $me->loadMe();
 
         foreach ($this->tempPositions as $position) {
+            // Skip empty positions
+            if (empty($position['product_name']) || ($position['amount'] ?? 0) == 0) continue;
+
+            // Map _group to position_group
+            $groupName = $position['_group'] ?? null;
+            unset($position['_group']);
+
             ManualInvoicepositionModel::create(array_merge([
                 'manualinvoice_id' => $invoiceId,
-                'start_date' => date('Y-m-d'),
+                'position_group' => $groupName,
+                'unit' => 'Stk.',
+                'discount' => 0,
                 'create_by' => $me->id,
                 'edit_by' => $me->id,
                 'create' => time(),
@@ -215,8 +457,23 @@ class ManualInvoiceController extends TTCrud
         if (!($invoice = ManualInvoiceModel::get($invoiceId))) return;
 
         $positions = ManualInvoicepositionModel::search(['manualinvoice_id' => $invoiceId]);
-        $invoice->total = array_sum(array_column($positions, 'price_total'));
-        $invoice->total_gross = array_sum(array_column($positions, 'price_gross'));
+        $subtotal = array_sum(array_column($positions, 'price_total'));
+
+        // Apply gesamtrabatt (total discount) if exists
+        $gesamtrabatt = $invoice->gesamtrabatt ?? 0;
+        $discountAmount = $subtotal * ($gesamtrabatt / 100);
+        $netTotal = $subtotal - $discountAmount;
+
+        // Calculate gross total with VAT applied after discount
+        $grossTotal = 0;
+        foreach ($positions as $pos) {
+            $positionNet = $pos->price_total;
+            $positionAfterDiscount = $positionNet * (1 - $gesamtrabatt / 100);
+            $grossTotal += $positionAfterDiscount * (1 + $pos->vatrate / 100);
+        }
+
+        $invoice->total = $netTotal;
+        $invoice->total_gross = $grossTotal;
         $invoice->save();
     }
 
@@ -272,23 +529,23 @@ class ManualInvoiceController extends TTCrud
         return [
             'id' => $pos->id,
             'manualinvoice_id' => $pos->manualinvoice_id,
+            '_group' => $pos->position_group ?? '',
             'billing_id' => $pos->billing_id,
             'contract_id' => $pos->contract_id,
-            'start_date' => $pos->start_date,
-            'end_date' => $pos->end_date,
             'matchcode' => $pos->matchcode,
             'product_id' => $pos->product_id,
             'product_name' => $pos->product_name,
             'product_info' => $pos->product_info,
             'amount' => $pos->amount,
+            'unit' => $pos->unit ?? 'Stk.',
             'price' => $pos->price,
+            'discount' => $pos->discount ?? 0,
             'price_total' => $pos->price_total,
             'price_gross' => $pos->price_gross,
             'vatrate' => $pos->vatrate,
             'fibu_cost_account' => $pos->fibu_cost_account,
             'fibu_cost_account_legacy' => $pos->fibu_cost_account_legacy,
             'fibu_taxcode' => $pos->fibu_taxcode,
-            'billing_period' => $pos->billing_period,
             'options' => $pos->options
         ];
     }
@@ -340,6 +597,7 @@ class ManualInvoiceController extends TTCrud
                     'original_amount' => $pos->amount,
                     'credited_amount' => $creditedAmounts[$key] ?? 0,
                     'available_amount' => $availableAmount,
+                    'unit' => $pos->unit ?? 'Stk.',
                     'price' => $pos->price,
                     'vatrate' => $pos->vatrate,
                     'product_id' => $pos->product_id,
@@ -376,6 +634,10 @@ class ManualInvoiceController extends TTCrud
         $invoiceData = [
             'invoice_number' => ManualInvoiceModel::getNextInvoiceNumber(),
             'invoice_date' => time(),
+            'leistungszeitraum' => $originalInvoice->leistungszeitraum ?? null,
+            'einleitender_text' => 'Gutschrift zur Rechnung ' . $originalInvoice->invoice_number,
+            'externe_referenz' => $originalInvoice->externe_referenz ?? null,
+            'gesamtrabatt' => 0,
             'owner_id' => $originalInvoice->owner_id,
             'billingaddress_id' => $originalInvoice->billingaddress_id,
             'customer_number' => $originalInvoice->customer_number,
@@ -410,7 +672,7 @@ class ManualInvoiceController extends TTCrud
             'total_gross' => 0,
             'vatgroup_id' => $originalInvoice->vatgroup_id,
             'credit_for_invoice_id' => $originalInvoiceId,
-            'status' => 'finalized',
+            'status' => 'erstellt',
             'create' => time(),
             'edit' => time(),
             'create_by' => $me->id,
@@ -425,11 +687,14 @@ class ManualInvoiceController extends TTCrud
             $priceTotal = (-abs($pos['amount'])) * $pos['price'];
             ManualInvoicepositionModel::create([
                 'manualinvoice_id' => $creditInvoiceId,
+                'position_group' => null,
                 'product_id' => $pos['product_id'],
                 'product_name' => $pos['product_name'],
                 'product_info' => $pos['product_info'] ?? '',
                 'amount' => -abs($pos['amount']),
+                'unit' => $pos['unit'] ?? 'Stk.',
                 'price' => $pos['price'],
+                'discount' => 0,
                 'vatrate' => $pos['vatrate'],
                 'price_total' => $priceTotal,
                 'price_gross' => $priceTotal * (1 + $pos['vatrate'] / 100),
@@ -437,8 +702,7 @@ class ManualInvoiceController extends TTCrud
                 'fibu_cost_account' => $pos['fibu_cost_account'] ?? null,
                 'fibu_taxcode' => $pos['fibu_taxcode'] ?? null,
                 'contract_id' => 0,
-                'start_date' => date('Y-m-d'),
-                'billing_period' => 0,
+                'billing_id' => null,
                 'create_by' => $me->id,
                 'edit_by' => $me->id,
                 'create' => time(),

application/ManualInvoice/ManualInvoiceModel.php

@@ -4,6 +4,10 @@ class ManualInvoiceModel extends TTCrudBaseModel {
     public int $id;
     public ?string $invoice_number;
     public int $invoice_date;
+    public ?string $leistungszeitraum;
+    public ?string $einleitender_text;
+    public ?string $externe_referenz;
+    public float $gesamtrabatt;
     public int $owner_id;
     public int $billingaddress_id;
     public int $customer_number;
@@ -51,13 +55,13 @@ class ManualInvoiceModel extends TTCrudBaseModel {
         $last = $invoices[0]->invoice_number ?? null;
         $year = date("Y");
 
-        if ($last && preg_match('/^MRN(\d+)-X(\d+)$/', $last, $m)) {
+        if ($last && preg_match('/^RN(\d+)-C(\d+)$/', $last, $m)) {
             $num = ($m[1] == $year) ? $m[2] + 1 : 1;
         } else {
             $num = 1;
         }
 
-        return sprintf("MRN%s-X%06d", $year, $num);
+        return sprintf("RN%s-C%06d", $year, $num);
     }
 
     public function getProperty($name) {

application/ManualInvoiceJournal/ManualInvoiceJournalModel.php

@@ -0,0 +1,12 @@
+<?php
+
+class ManualInvoiceJournalModel extends TTCrudBaseModel {
+    public int $id;
+    public int $manualinvoiceId;
+    public ?string $text;
+    public ?string $data;
+    public ?string $statusChange;
+    public ?string $fileIds;
+    public int $create;
+    public int $createBy;
+}

application/ManualInvoiceposition/ManualInvoicepositionModel.php

@@ -3,23 +3,23 @@
 class ManualInvoicepositionModel extends TTCrudBaseModel {
     public int $id;
     public ?int $manualinvoice_id;
+    public ?string $position_group;
     public ?int $billing_id;
     public int $contract_id;
-    public string $start_date;
-    public ?string $end_date;
     public ?string $matchcode;
     public int $product_id;
     public string $product_name;
     public ?string $product_info;
     public float $amount;
+    public string $unit;
     public float $price;
+    public float $discount;
     public float $price_total;
     public float $price_gross;
     public float $vatrate;
     public ?int $fibu_cost_account;
     public ?int $fibu_cost_account_legacy;
     public ?int $fibu_taxcode;
-    public int $billing_period;
     public ?string $options;
     public int $create_by;
     public int $edit_by;

db/migrations/20251204000000_add_manualinvoice_additional_fields.php

@@ -0,0 +1,36 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class AddManualinvoiceAdditionalFields extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("ManualInvoice");
+            $table->addColumn("leistungszeitraum", "string", ["null" => true, "default" => null, "length" => 255, "after" => "invoice_date"]);
+            $table->addColumn("einleitender_text", "text", ["null" => true, "default" => null, "after" => "leistungszeitraum"]);
+            $table->addColumn("externe_referenz", "string", ["null" => true, "default" => null, "length" => 255, "after" => "einleitender_text"]);
+            $table->addColumn("gesamtrabatt", "decimal", ["null" => false, "default" => 0, "precision" => 6, "scale" => 2, "after" => "externe_referenz"]);
+            $table->save();
+
+            $positionTable = $this->table("ManualInvoiceposition");
+            $positionTable->addColumn("discount", "decimal", ["null" => false, "default" => 0, "precision" => 6, "scale" => 2, "after" => "price"]);
+            $positionTable->save();
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $this->table("ManualInvoiceposition")->removeColumn("discount")->save();
+            $this->table("ManualInvoice")
+                ->removeColumn("leistungszeitraum")
+                ->removeColumn("einleitender_text")
+                ->removeColumn("externe_referenz")
+                ->removeColumn("gesamtrabatt")
+                ->save();
+        }
+    }
+}

db/migrations/20251204000001_update_manualinvoiceposition_structure.php

@@ -0,0 +1,37 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class UpdateManualinvoicepositionStructure extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("ManualInvoiceposition");
+
+            $table->addColumn("position_group", "string", ["null" => true, "default" => null, "length" => 255, "after" => "manualinvoice_id"]);
+
+            $table->removeColumn("start_date");
+            $table->removeColumn("end_date");
+            $table->removeColumn("billing_period");
+
+            $table->save();
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("ManualInvoiceposition");
+
+            $table->addColumn("start_date", "date", ["null" => false, "after" => "contract_id"]);
+            $table->addColumn("end_date", "date", ["null" => true, "default" => null, "after" => "start_date"]);
+            $table->addColumn("billing_period", "integer", ["null" => false, "default" => 0, "after" => "fibu_taxcode"]);
+
+            $table->removeColumn("position_group");
+
+            $table->save();
+        }
+    }
+}

db/migrations/20251204000002_add_unit_to_manualinvoiceposition.php

@@ -0,0 +1,30 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class AddUnitToManualinvoiceposition extends AbstractMigration
+{
+    public function up(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $table = $this->table("ManualInvoiceposition");
+
+            $table->addColumn("unit", "string", [
+                "null" => false,
+                "default" => "Stk.",
+                "length" => 10,
+                "after" => "amount"
+            ]);
+
+            $table->save();
+        }
+    }
+
+    public function down(): void
+    {
+        if($this->getEnvironment() == "thetool") {
+            $this->table("ManualInvoiceposition")->removeColumn("unit")->save();
+        }
+    }
+}

db/migrations/20251204000003_create_manual_invoice_journal.php

@@ -0,0 +1,24 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class CreateManualInvoiceJournal extends AbstractMigration
+{
+    public function change(): void
+    {
+        if ($this->getEnvironment() == "thetool") {
+            $table = $this->table('ManualInvoiceJournal');
+            $table->addColumn('manualinvoiceId', 'integer', ['signed' => false])
+                ->addColumn('text', 'text', ['null' => true])
+                ->addColumn('data', 'json', ['null' => true])
+                ->addColumn('statusChange', 'string', ['limit' => 255, 'null' => true])
+                ->addColumn('fileIds', 'json', ['null' => true])
+                ->addColumn('createBy', 'integer', ['signed' => false])
+                ->addColumn('create', 'integer')
+                ->addForeignKey('manualinvoiceId', 'ManualInvoice', 'id', ['delete' => 'CASCADE', 'update' => 'CASCADE'])
+                ->addIndex(['manualinvoiceId'], ['name' => 'manualinvoiceId_idx'])
+                ->create();
+        }
+    }
+}

db/migrations/20251204000004_update_manual_invoice_status_values.php

@@ -0,0 +1,33 @@
+<?php
+declare(strict_types=1);
+
+use Phinx\Migration\AbstractMigration;
+
+final class UpdateManualInvoiceStatusValues extends AbstractMigration
+{
+    public function up(): void
+    {
+        if ($this->getEnvironment() == "thetool") {
+            // Change status column from enum to varchar to support new values
+            $this->execute("ALTER TABLE ManualInvoice MODIFY COLUMN status VARCHAR(50) NOT NULL DEFAULT 'erstellt'");
+
+            // Update existing values to new ones
+            $this->execute("UPDATE ManualInvoice SET status = 'erstellt' WHERE status = 'draft'");
+            $this->execute("UPDATE ManualInvoice SET status = 'gesendet' WHERE status = 'finalized'");
+            $this->execute("UPDATE ManualInvoice SET status = 'exportiert' WHERE status = 'exported'");
+        }
+    }
+
+    public function down(): void
+    {
+        if ($this->getEnvironment() == "thetool") {
+            // Revert values back
+            $this->execute("UPDATE ManualInvoice SET status = 'draft' WHERE status = 'erstellt'");
+            $this->execute("UPDATE ManualInvoice SET status = 'finalized' WHERE status = 'gesendet'");
+            $this->execute("UPDATE ManualInvoice SET status = 'exported' WHERE status = 'exportiert'");
+
+            // Change back to enum
+            $this->execute("ALTER TABLE ManualInvoice MODIFY COLUMN status ENUM('draft', 'finalized', 'exported') NOT NULL DEFAULT 'draft'");
+        }
+    }
+}

public/js/pages/ManualInvoice/ManualInvoice.css

@@ -270,4 +270,15 @@
 
 .preview-footer .page-number {
     text-align: right;
+}
+
+/* Fix tt-select label to match tt-input styling */
+.manual-invoice-overlay .tt-select-modern label.col-form-label {
+    font-weight: normal;
+    margin-bottom: 0.5rem;
+}
+
+/* Ensure consistent form-group spacing */
+.manual-invoice-overlay .tt-select-modern.form-group {
+    margin-bottom: 1rem;
 }

public/js/pages/ManualInvoice/ManualInvoice.js

@@ -4,7 +4,7 @@ Vue.component('manual-invoice', {
         <div class="d-flex justify-content-between align-items-center mb-3">
           <tt-button text="Neue Rechnung" icon="fas fa-plus" @click="openModal()" additional-class="btn-primary"/>
         </div>
-        <tt-table-crud ref="table" emit-edit @edit="openModal($event)" @createGutschrift="openGutschriftModal($event)">
+        <tt-table-crud ref="table" emit-edit @edit="openModal($event)" @createGutschrift="openGutschriftModal($event)" @pdfPreview="handlePdfPreview($event)" @sendInvoice="handleSendInvoice($event)">
           <template v-slot:total="{ row }">{{ formatPrice(row.total) }}</template>
           <template v-slot:total_gross="{ row }">{{ formatPrice(row.total_gross) }}</template>
           <template v-slot:invoice_date="{ row }">{{ formatDate(row.invoice_date) }}</template>
@@ -18,9 +18,10 @@ Vue.component('manual-invoice', {
         </tt-table-crud>
         <manual-invoice-modal v-if="isModalOpen" :initial-data="editingInvoiceData" @close="closeModal" @save="handleSave"/>
         <gutschrift-modal v-if="isGutschriftModalOpen" :invoice-id="gutschriftInvoiceId" @close="closeGutschriftModal" @created="handleGutschriftCreated"/>
+        <send-invoice-modal v-if="isSendModalOpen" :invoice-id="sendInvoiceId" @close="closeSendModal" @sent="handleInvoiceSent"/>
       </tt-card>
     `,
-    data: () => ({ isModalOpen: false, editingInvoiceData: null, isGutschriftModalOpen: false, gutschriftInvoiceId: null }),
+    data: () => ({ isModalOpen: false, editingInvoiceData: null, isGutschriftModalOpen: false, gutschriftInvoiceId: null, isSendModalOpen: false, sendInvoiceId: null }),
     methods: {
         openModal(invoice = null) {
             this.editingInvoiceData = invoice ? JSON.parse(JSON.stringify(invoice)) : null;
@@ -36,17 +37,17 @@ Vue.component('manual-invoice', {
                 const positions = invoiceData.positions.map(p => {
                     const amount = parseFloat(p.amount) || 0;
                     const price = parseFloat(p.price) || 0;
+                    const discount = parseFloat(p.discount) || 0;
                     const vatrate = parseFloat(p.vatrate) || 0;
+                    const priceAfterDiscount = amount * price * (1 - discount / 100);
                     return {
-                        ...p, amount, price, vatrate,
-                        price_total: amount * price,
-                        price_gross: (amount * price) * (1 + vatrate / 100),
+                        ...p, amount, price, discount, vatrate,
+                        unit: p.unit || 'Stk.',
+                        price_total: priceAfterDiscount,
+                        price_gross: priceAfterDiscount * (1 + vatrate / 100),
                         product_id: p.product_id || 0,
                         contract_id: p.contract_id || 0,
                         billing_id: p.billing_id || null,
-                        billing_period: p.billing_period || 0,
-                        start_date: p.start_date || moment().format('YYYY-MM-DD'),
-                        end_date: p.end_date || null,
                         matchcode: p.matchcode || null,
                         fibu_cost_account: p.fibu_cost_account || null,
                         fibu_cost_account_legacy: p.fibu_cost_account_legacy || null,
@@ -66,7 +67,8 @@ Vue.component('manual-invoice', {
                     billing_delivery: 'email',
                     fibu_payment_due: 14,
                     fibu_account_number: invoiceData.fibu_account_number || 0,
-                    vatgroup_id: 1
+                    vatgroup_id: 1,
+                    gesamtrabatt: parseFloat(invoiceData.gesamtrabatt) || 0
                 };
 
                 const url = invoiceData.id ? window.TT_CONFIG.UPDATE_URL : window.TT_CONFIG.CREATE_URL;
@@ -93,8 +95,33 @@ Vue.component('manual-invoice', {
         },
         closeGutschriftModal() { this.isGutschriftModalOpen = false; this.gutschriftInvoiceId = null; },
         handleGutschriftCreated() { this.closeGutschriftModal(); this.$refs.table.$refs.table.refreshTable(); },
-        getStatusClass(s) { return { 'draft': 'badge badge-secondary', 'finalized': 'badge badge-success', 'exported': 'badge badge-primary' }[s] || 'badge badge-secondary'; },
-        getStatusText(s) { return { 'draft': 'Entwurf', 'finalized': 'Finalisiert', 'exported': 'Exportiert' }[s] || s; }
+        async handlePdfPreview(invoice) {
+            try {
+                const { data } = await axios.post(`${window.TT_CONFIG.BASE_PATH}/ManualInvoice/pdfPreview`, { id: invoice.id });
+                if (data.success && data.url) {
+                    window.open(data.url, '_blank');
+                } else {
+                    window.notify('error', data.message || 'Fehler beim Öffnen der PDF Vorschau');
+                }
+            } catch (e) {
+                console.error('Error opening PDF preview:', e);
+                window.notify('error', 'Fehler: ' + (e.response?.data?.message || e.message));
+            }
+        },
+        handleSendInvoice(invoice) {
+            this.sendInvoiceId = invoice.id;
+            this.isSendModalOpen = true;
+        },
+        closeSendModal() {
+            this.isSendModalOpen = false;
+            this.sendInvoiceId = null;
+        },
+        handleInvoiceSent() {
+            this.closeSendModal();
+            this.$refs.table.$refs.table.refreshTable();
+        },
+        getStatusClass(s) { return { 'erstellt': 'badge badge-secondary', 'gesendet': 'badge badge-success', 'exportiert': 'badge badge-primary' }[s] || 'badge badge-secondary'; },
+        getStatusText(s) { return { 'erstellt': 'Erstellt', 'gesendet': 'Gesendet', 'exportiert': 'Exportiert' }[s] || s; }
     }
 });
 
@@ -117,15 +144,18 @@ Vue.component('manual-invoice-modal', {
             </tt-card>
             <tt-card><template v-slot:header><h5><i class="fas fa-file-invoice mr-2"></i>Rechnungsdetails</h5></template>
               <div class="form-grid">
-                <tt-input label="Rechnungsnr." v-model="invoiceData.invoice_number" sm/>
-                <tt-date-picker label="Rechnungsdatum" v-model="invoiceData.invoice_date" :date-range="false" sm/>
+                <tt-input label="Rechnungsdatum" type="date" v-model="invoiceData.invoice_date" sm/>
                 <tt-select label="Zahlungsart" v-model="invoiceData.billing_type" :options="billingTypeOptions" sm/>
               </div>
+              <tt-input label="Leistungszeitraum" v-model="invoiceData.leistungszeitraum" sm row placeholder="z.B. 01.01.2025 - 31.01.2025"/>
+              <tt-input label="Externe Referenz" v-model="invoiceData.externe_referenz" sm row placeholder="z.B. Auftragsnummer, Bestellnummer"/>
+              <tt-textarea label="Einleitender Text" v-model="invoiceData.einleitender_text" rows="3" sm row/>
             </tt-card>
             <tt-card><template v-slot:header><h5><i class="fas fa-list-ol mr-2"></i>Positionen</h5></template>
-              <tt-positions-manager ref="positionsManager" v-model="invoiceData.positions" :config="positionsConfig" />
+              <tt-positions-manager group-mode ref="positionsManager" v-model="invoiceData.positions" :config="positionsConfig" />
             </tt-card>
-            <tt-card><template v-slot:header><h5><i class="fas fa-paragraph mr-2"></i>Texte</h5></template>
+            <tt-card><template v-slot:header><h5><i class="fas fa-paragraph mr-2"></i>Texte & Rabatt</h5></template>
+              <tt-input label="Gesamtrabatt (%)" v-model.number="invoiceData.gesamtrabatt" sm row type="number" placeholder="0"/>
               <tt-textarea label="Steuerhinweis" v-model="invoiceData.tax_text" rows="2"/>
             </tt-card>
           </div>
@@ -150,20 +180,31 @@ Vue.component('manual-invoice-modal', {
             pdfPreviewUrl: '',
             previewDebounceTimer: null,
             invoiceData: {
-                id: null, invoice_number: `MRN${new Date().getFullYear()}-X000001`, invoice_date: moment().unix(),
+                id: null, invoice_number: null, invoice_date: moment().format('YYYY-MM-DD'),
                 billingaddress_id: null, owner_id: null, customer_number: 0, fibu_account_number: 0,
                 company: '', firstname: '', lastname: '', street: '', zip: '', city: '', country: 'Österreich',
-                uid: '', email: '', billing_type: 'invoice', tax_text: '', positions: [], total: 0, total_gross: 0
+                uid: '', email: '', billing_type: 'invoice', tax_text: '',
+                leistungszeitraum: '', einleitender_text: '', externe_referenz: '', gesamtrabatt: 0,
+                positions: [], total: 0, total_gross: 0
             },
             billingTypeOptions: [{value: 'invoice', text: 'Rechnung'}, {value: 'sepa', text: 'SEPA'}],
             positionsConfig: {
                 fields: {
                     product_name: { type: 'input', label: 'Bezeichnung' },
                     product_info: { type: 'input', label: 'Zusatzinfo' },
-                    start_date: { type: 'input', label: 'Start', inputType: 'date' },
-                    end_date: { type: 'input', label: 'Ende', inputType: 'date' },
                     amount: { type: 'input', label: 'Menge', inputType: 'number' },
+                    unit: {
+                        type: 'select',
+                        label: 'Einheit',
+                        options: [
+                            { value: 'Pau.', text: 'Pau.' },
+                            { value: 'Stk.', text: 'Stk.' },
+                            { value: 'h', text: 'h' },
+                            { value: 'm', text: 'm' }
+                        ]
+                    },
                     price: { type: 'input', label: 'Einzelpreis (€)', inputType: 'number' },
+                    discount: { type: 'input', label: 'Rabatt (%)', inputType: 'number' },
                     vatrate: { type: 'input', label: 'USt. (%)', inputType: 'number' },
                 },
                 validateForm: (d) => {
@@ -178,14 +219,33 @@ Vue.component('manual-invoice-modal', {
     computed: {
         overlayClasses() { return { 'preview-active-small': !this.isLargeScreen && this.showPreviewOnSmallScreen, 'editor-active-small': !this.isLargeScreen && !this.showPreviewOnSmallScreen }; },
         totals() {
-            let net = 0, vat = {};
+            let subtotal = 0;
             (this.invoiceData.positions || []).forEach(p => {
-                const lineTotal = (parseFloat(p.amount) || 0) * (parseFloat(p.price) || 0);
-                const r = parseInt(p.vatrate) || 0;
-                net += lineTotal;
-                vat[r] = (vat[r] || 0) + lineTotal * (r / 100);
+                const amount = parseFloat(p.amount) || 0;
+                const price = parseFloat(p.price) || 0;
+                const discount = parseFloat(p.discount) || 0;
+                const lineTotal = amount * price * (1 - discount / 100);
+                subtotal += lineTotal;
             });
-            return { net, vat, gross: net + Object.values(vat).reduce((a, b) => a + b, 0) };
+
+            // Apply gesamtrabatt
+            const gesamtrabatt = parseFloat(this.invoiceData.gesamtrabatt) || 0;
+            const net = subtotal * (1 - gesamtrabatt / 100);
+
+            // Calculate VAT
+            let vat = {}, gross = 0;
+            (this.invoiceData.positions || []).forEach(p => {
+                const amount = parseFloat(p.amount) || 0;
+                const price = parseFloat(p.price) || 0;
+                const discount = parseFloat(p.discount) || 0;
+                const r = parseInt(p.vatrate) || 0;
+                const lineNet = amount * price * (1 - discount / 100) * (1 - gesamtrabatt / 100);
+                const lineVat = lineNet * (r / 100);
+                vat[r] = (vat[r] || 0) + lineVat;
+                gross += lineNet + lineVat;
+            });
+
+            return { subtotal, net, vat, gross };
         }
     },
     watch: {
@@ -249,12 +309,16 @@ Vue.component('manual-invoice-modal', {
         async updatePdfPreview() {
             this.pdfLoading = true;
             try {
-                const positions = this.invoiceData.positions.map(p => {
-                    const amount = parseFloat(p.amount) || 0;
-                    const price = parseFloat(p.price) || 0;
-                    const vatrate = parseFloat(p.vatrate) || 0;
-                    return { ...p, amount, price, vatrate, price_total: amount * price, price_gross: (amount * price) * (1 + vatrate / 100) };
-                });
+                const positions = this.invoiceData.positions
+                    .filter(p => p.product_name && (parseFloat(p.amount) || 0) > 0) // Filter out empty positions
+                    .map(p => {
+                        const amount = parseFloat(p.amount) || 0;
+                        const price = parseFloat(p.price) || 0;
+                        const discount = parseFloat(p.discount) || 0;
+                        const vatrate = parseFloat(p.vatrate) || 0;
+                        const priceAfterDiscount = amount * price * (1 - discount / 100);
+                        return { ...p, amount, price, discount, vatrate, unit: p.unit || 'Stk.', price_total: priceAfterDiscount, price_gross: priceAfterDiscount * (1 + vatrate / 100) };
+                    });
 
                 const payload = {
                     preview: true, ...this.invoiceData,
@@ -349,4 +413,127 @@ Vue.component('gutschrift-modal', {
         close() { this.$emit('close'); },
         formatPrice(v) { return new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(v || 0); }
     }
+});
+
+Vue.component('send-invoice-modal', {
+    props: ['invoiceId'],
+    template: `
+      <tt-modal :show="true" @close="close" @submit="handleAction" :submit-text="actionButtonText" :is-loading="loading" size="md">
+        <template v-slot:header>
+          <h5><i class="fas fa-paper-plane mr-2"></i>Rechnung aussenden</h5>
+        </template>
+        <div v-if="!invoice" class="text-center py-4">
+          <tt-loader />
+        </div>
+        <div v-else>
+          <div class="mb-3">
+            <strong>Rechnung:</strong> {{ invoice.invoice_number }}<br/>
+            <strong>Kunde:</strong> {{ invoice.customerName }}
+          </div>
+          <hr/>
+          <div class="form-group">
+            <label>Aktion auswählen:</label>
+            <div class="form-check">
+              <input class="form-check-input" type="radio" id="action-email" value="email" v-model="selectedAction" :disabled="!invoice.email">
+              <label class="form-check-label" for="action-email">
+                <i class="fas fa-envelope mr-2"></i>Per E-Mail versenden
+                <span v-if="invoice.email" class="text-muted d-block ml-4">an {{ invoice.email }}</span>
+                <span v-else class="text-danger d-block ml-4">Keine E-Mail-Adresse vorhanden</span>
+              </label>
+            </div>
+            <div class="form-check mt-2">
+              <input class="form-check-input" type="radio" id="action-download" value="download" v-model="selectedAction">
+              <label class="form-check-label" for="action-download">
+                <i class="fas fa-download mr-2"></i>PDF herunterladen
+              </label>
+            </div>
+          </div>
+          <div v-if="selectedAction === 'email' && invoice.email" class="mt-3">
+            <tt-input label="E-Mail-Adresse" v-model="emailAddress" sm/>
+          </div>
+        </div>
+      </tt-modal>
+    `,
+    data() {
+        return {
+            invoice: null,
+            loading: false,
+            selectedAction: 'email',
+            emailAddress: ''
+        };
+    },
+    computed: {
+        actionButtonText() {
+            return this.selectedAction === 'email' ? 'E-Mail versenden' : 'Herunterladen';
+        }
+    },
+    async mounted() {
+        try {
+            const { data } = await axios.post(`${window.TT_CONFIG.BASE_PATH}/ManualInvoice/getInvoiceEmail`, { id: this.invoiceId });
+            if (data.success) {
+                this.invoice = data.invoice;
+                this.emailAddress = data.invoice.email || '';
+                this.selectedAction = data.invoice.email ? 'email' : 'download';
+            } else {
+                window.notify('error', data.message || 'Fehler beim Laden der Rechnung');
+                this.close();
+            }
+        } catch (e) {
+            window.notify('error', 'Fehler beim Laden der Rechnung');
+            this.close();
+        }
+    },
+    methods: {
+        async handleAction() {
+            if (this.selectedAction === 'email') {
+                await this.sendEmail();
+            } else {
+                await this.downloadPdf();
+            }
+        },
+        async sendEmail() {
+            if (!this.emailAddress) {
+                window.notify('error', 'Bitte E-Mail-Adresse eingeben');
+                return;
+            }
+            this.loading = true;
+            try {
+                const { data } = await axios.post(`${window.TT_CONFIG.BASE_PATH}/ManualInvoice/sendInvoiceEmail`, {
+                    id: this.invoiceId,
+                    email: this.emailAddress
+                });
+                if (data.success) {
+                    window.notify('success', data.message);
+                    this.$emit('sent');
+                } else {
+                    window.notify('error', data.message || 'Fehler beim Versenden');
+                }
+            } catch (e) {
+                window.notify('error', 'Fehler: ' + (e.response?.data?.message || e.message));
+            } finally {
+                this.loading = false;
+            }
+        },
+        async downloadPdf() {
+            this.loading = true;
+            try {
+                const { data } = await axios.post(`${window.TT_CONFIG.BASE_PATH}/ManualInvoice/downloadInvoice`, {
+                    id: this.invoiceId
+                });
+                if (data.success && data.url) {
+                    window.location.href = data.url;
+                    this.$emit('sent');
+                } else {
+                    window.notify('error', data.message || 'Fehler beim Download');
+                }
+            } catch (e) {
+                window.notify('error', 'Fehler: ' + (e.response?.data?.message || e.message));
+            } finally {
+                this.loading = false;
+            }
+        },
+        close() {
+            this.$emit('close');
+        }
+    }
 });