<?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()]);
}