feat: Enhance task management with start and end time handling

- Added functionality to calculate task duration based on provided start and end times.
- Implemented logic to derive end time from start time and duration if only start time is provided.
- Updated task creation and update APIs to handle new time fields.
- Introduced a modal for editing tasks with flexible time and duration inputs.
- Improved UI for task creation and editing, including better handling of time inputs and duration selection.
- Added two-way synchronization with Outlook for task updates.

includes/integrations/microsoft.php

@@ -562,6 +562,75 @@ function microsoft_delete_event(int $userId, string $eventId): bool {
     return in_array($response['status'], [200, 204, 404]);
 }
 
+/**
+ * Werkt een bestaande afspraak bij in Microsoft Outlook via Graph API (PATCH)
+ */
+function microsoft_update_event(int $userId, string $eventId, array $eventData): bool {
+    if (empty($eventId)) {
+        return false;
+    }
+
+    $token = microsoft_get_valid_token($userId);
+    if (!$token) {
+        return false;
+    }
+
+    $payload = [];
+    if (!empty($eventData['subject'])) {
+        $payload['subject'] = $eventData['subject'];
+    }
+
+    $date = !empty($eventData['date']) ? $eventData['date'] : date('Y-m-d');
+    $startTime = !empty($eventData['start_time']) ? $eventData['start_time'] : '09:00';
+    $endTime   = !empty($eventData['end_time']) ? $eventData['end_time'] : '09:30';
+
+    if (preg_match('/^(\d{1,2})[:.](\d{2})$/', $startTime, $m)) {
+        $startTime = sprintf('%02d:%02d', (int)$m[1], (int)$m[2]);
+    }
+    if (preg_match('/^(\d{1,2})[:.](\d{2})$/', $endTime, $m)) {
+        $endTime = sprintf('%02d:%02d', (int)$m[1], (int)$m[2]);
+    }
+
+    $payload['start'] = [
+        'dateTime' => "{$date}T{$startTime}:00",
+        'timeZone' => 'Europe/Amsterdam',
+    ];
+    $payload['end'] = [
+        'dateTime' => "{$date}T{$endTime}:00",
+        'timeZone' => 'Europe/Amsterdam',
+    ];
+
+    $url = MS_GRAPH_BASE_URL . '/me/events/' . urlencode($eventId);
+    $response = fociz_http_request($url, [
+        'method'  => 'PATCH',
+        'headers' => [
+            'Authorization' => "Bearer {$token}",
+            'Content-Type'  => 'application/json',
+            'Accept'        => 'application/json',
+        ],
+        'body'    => $payload,
+        'timeout' => 12,
+    ]);
+
+    if ($response['status'] === 401) {
+        $freshToken = microsoft_get_valid_token($userId, true);
+        if ($freshToken && $freshToken !== $token) {
+            $response = fociz_http_request($url, [
+                'method'  => 'PATCH',
+                'headers' => [
+                    'Authorization' => "Bearer {$freshToken}",
+                    'Content-Type'  => 'application/json',
+                    'Accept'        => 'application/json',
+                ],
+                'body'    => $payload,
+                'timeout' => 12,
+            ]);
+        }
+    }
+
+    return in_array($response['status'], [200, 204]);
+}
+
 /**
  * Ontkoppelt Microsoft integratie voor een gebruiker
  * Wist uitsluitend de persoonlijke tokens; behoudt de centrale Azure App gegevens indien aanwezig.