feat: bootstrap JOBcard CRM foundation

2026-09-01 18:54:47 +02:00
commit 480494c5ed
31 changed files with 1300 additions and 0 deletions
@@ -0,0 +1,17 @@
+<?php
+declare(strict_types=1);
+
+function calculate_duration_hours(?string $start, ?string $end, ?float $manualHours = null): ?float
+{
+    if ($manualHours !== null) {
+        return $manualHours >= 0 ? round($manualHours, 2) : null;
+    }
+    if ($start === null || $end === null || !preg_match('/^\d{2}:\d{2}$/', $start) || !preg_match('/^\d{2}:\d{2}$/', $end)) {
+        return null;
+    }
+    [$startHour, $startMinute] = array_map('intval', explode(':', $start));
+    [$endHour, $endMinute] = array_map('intval', explode(':', $end));
+    if ($startHour > 23 || $endHour > 23 || $startMinute > 59 || $endMinute > 59) return null;
+    $minutes = ($endHour * 60 + $endMinute) - ($startHour * 60 + $startMinute);
+    return $minutes > 0 ? round($minutes / 60, 2) : null;
+}