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

/**
 * Elimina completamente una classe schedulata (serviceschedule) insieme
 * a tutte le sue prenotazioni (bookingclass), in un'unica transazione.
 *
 * Script di sola logica: nessun output, redirect finale.
 */
$pdo = DBHandlerSelect::getInstance()->getConnection();

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

if ($idserviceschedule <= 0) {
    header('Location: adminpanel.php?error=invalid');
    exit;
}

try {
    $pdo->beginTransaction();

    // 1) Rimuove le prenotazioni collegate a questa schedulazione
    $delBookings = $pdo->prepare(
        "DELETE FROM bookingclass WHERE idserviceschedule = :id"
    );
    $delBookings->execute([':id' => $idserviceschedule]);

    // 2) Rimuove la schedulazione stessa
    $delSchedule = $pdo->prepare(
        "DELETE FROM serviceschedule WHERE idserviceschedule = :id"
    );
    $delSchedule->execute([':id' => $idserviceschedule]);

    $pdo->commit();

    header('Location: adminpanel.php?success=4');
    exit;
} catch (Throwable $ex) {
    if ($pdo->inTransaction()) {
        $pdo->rollBack();
    }
    // Log server-side, messaggio generico all'utente
    error_log('removeschedule error: ' . $ex->getMessage());
    header('Location: adminpanel.php?error=delete');
    exit;
}