update di penjualan invoice

application/views/sales/_section_nav.php

@@ -0,0 +1,26 @@
+<?php
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+$section = isset($sales_section) ? (string) $sales_section : '';
+$counts = isset($sales_summary) && is_array($sales_summary) ? $sales_summary : array();
+$count = static function ($key) use ($counts) {
+    return max(0, (int) ($counts[$key] ?? 0));
+};
+$links = array(
+    array('key'=>'summary', 'url'=>'sales',            'icon'=>'bi-speedometer2',       'label'=>'Ringkasan',   'badge'=>0),
+    array('key'=>'invoice', 'url'=>'invoices',         'icon'=>'bi-receipt',            'label'=>'Invoice',     'badge'=>$count('draft')),
+    array('key'=>'delivery','url'=>'sales/deliveries', 'icon'=>'bi-truck',              'label'=>'Surat Jalan', 'badge'=>$count('delivery')),
+    array('key'=>'receivable','url'=>'receivables',    'icon'=>'bi-cash-coin',          'label'=>'Piutang',     'badge'=>$count('open_invoice')),
+    array('key'=>'return',  'url'=>'sales/returns',    'icon'=>'bi-arrow-counterclockwise','label'=>'Retur',    'badge'=>$count('return')),
+    array('key'=>'customer','url'=>'customers',        'icon'=>'bi-people',             'label'=>'Customer',    'badge'=>0),
+);
+?>
+<nav class="sales-section-nav" aria-label="Bagian Penjualan">
+    <?php foreach ($links as $link): ?>
+        <a class="<?= $section === $link['key'] ? 'active' : '' ?>" href="<?= base_url($link['url']) ?>">
+            <i class="bi <?= html_escape($link['icon']) ?>"></i>
+            <span><?= html_escape($link['label']) ?></span>
+            <?php if ($link['badge'] > 0): ?><b><?= number_format($link['badge'], 0, ',', '.') ?></b><?php endif; ?>
+        </a>
+    <?php endforeach; ?>
+</nav>