<?php
require_once(__DIR__ . '/class/db-functions.php');
header('Content-Type: application/json');

try {
    $data = json_decode(file_get_contents("php://input"), true);
    $idMescola = (int)$data['idMescola'];
    $linee = $data['linee'] ?? [];

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

    // Elimina tutte le associazioni esistenti
    $pdo->prepare("DELETE FROM mescole_lines WHERE idmescola = ?")->execute([$idMescola]);

    // Reinserisci solo le selezionate
    if (!empty($linee)) {
        $stmt = $pdo->prepare("INSERT INTO mescole_lines (idmescola, idlinea) VALUES (?, ?)");
        foreach ($linee as $idLinea) {
            $stmt->execute([$idMescola, $idLinea]);
        }
    }

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