<?php
include('include/headscript.php');

header('Content-Type: application/json; charset=utf-8');

$db  = DBHandlerSelect::getInstance();
$pdo = $db->getConnection();

try {
    $id        = (int)($_POST['id'] ?? 0);
    $category  = trim($_POST['category'] ?? '');
    $item_name = trim($_POST['item_name'] ?? '');
    $item_code = trim($_POST['item_code'] ?? '');

    $allowedCats = ['PACKAGING_TYPE', 'BOX', 'PALLET', 'OTHER'];

    if ($id <= 0 || $category === '' || $item_name === '' || $item_code === '') {
        echo json_encode(['success' => false, 'message' => 'Dati non validi']);
        exit;
    }
    if (!in_array($category, $allowedCats, true)) {
        echo json_encode(['success' => false, 'message' => 'Categoria non valida']);
        exit;
    }

    $stmt = $pdo->prepare("
        UPDATE packaging_items
        SET category = ?, item_name = ?, item_code = ?
        WHERE id = ?
    ");
    $stmt->execute([$category, $item_name, $item_code, $id]);

    echo json_encode(['success' => true]);
} catch (Exception $e) {
    echo json_encode(['success' => false, 'message' => $e->getMessage()]);
}