fixed start stop pause

public/userarea/delete_pause_reason.php

@@ -0,0 +1,35 @@
+<?php
+require_once __DIR__ . '/class/db-functions.php';
+
+$db = DBHandlerSelect::getInstance();
+$pdo = $db->getConnection();
+
+$id = (int)($_GET['id'] ?? 0);
+
+if ($id <= 0) {
+    echo json_encode(['success' => false, 'message' => 'ID non valido.']);
+    exit;
+}
+
+try {
+    // Verifica se è usata in production_pauses
+    $check = $pdo->prepare("SELECT COUNT(*) FROM production_pauses WHERE reason_id = :id");
+    $check->execute([':id' => $id]);
+    $used = $check->fetchColumn();
+
+    if ($used > 0) {
+        echo json_encode([
+            'success' => false,
+            'message' => 'Impossibile eliminare: la causa è utilizzata in una o più pause.'
+        ]);
+        exit;
+    }
+
+    // Elimina
+    $stmt = $pdo->prepare("DELETE FROM pause_reasons WHERE id = :id");
+    $stmt->execute([':id' => $id]);
+
+    echo json_encode(['success' => true]);
+} catch (Exception $e) {
+    echo json_encode(['success' => false, 'message' => $e->getMessage()]);
+}