<?php
include('include/headscript.php');
header('Content-Type: application/json; charset=utf-8');

$id = isset($_GET['id']) ? (int)$_GET['id'] : 0;

if ($id <= 0) {
    echo json_encode(['success' => false, 'message' => 'ID non valido']);
    exit;
}

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

    $sql = "
        SELECT
            m.id,
            m.nome,
            m.nomeuscita,
            m.is_active,
            IFNULL(q.qty_totale, 0) AS qty_totale,
            GROUP_CONCAT(DISTINCT pl.name SEPARATOR ', ') AS linee
        FROM mescole m
        LEFT JOIN (
            SELECT idmescola, SUM(qty) AS qty_totale
            FROM mescole_supplier_lots
            GROUP BY idmescola
        ) q ON q.idmescola = m.id
        LEFT JOIN mescole_lines ml ON m.id = ml.idmescola
        LEFT JOIN production_lines pl ON ml.idlinea = pl.id
        WHERE m.id = ?
        GROUP BY m.id
    ";

    $stmt = $pdo->prepare($sql);
    $stmt->execute([$id]);
    $row = $stmt->fetch(PDO::FETCH_ASSOC);

    if (!$row) {
        echo json_encode(['success' => false, 'message' => 'Mescola non trovata']);
        exit;
    }

    echo json_encode(['success' => true, 'data' => $row]);
} catch (Throwable $e) {
    echo json_encode(['success' => false, 'message' => 'Errore database: ' . $e->getMessage()]);
}