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

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

$response = [
    'success' => false,
    'message' => ''
];

try {
    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
        throw new Exception('Metodo non consentito');
    }

    if (!isset($_POST['id']) || !is_numeric($_POST['id'])) {
        throw new Exception('ID allegato non valido');
    }

    $id = (int)$_POST['id'];

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

    $stmt = $pdo->prepare("SELECT id, file_path FROM matrice_attachments WHERE id = :id LIMIT 1");
    $stmt->execute([':id' => $id]);
    $attachment = $stmt->fetch(PDO::FETCH_ASSOC);

    if (!$attachment) {
        throw new Exception('Allegato non trovato');
    }

    $filePathRelative = ltrim((string)$attachment['file_path'], '/\\');
    $filePathAbsolute = __DIR__ . '/' . $filePathRelative;

    $pdo->beginTransaction();

    $deleteStmt = $pdo->prepare("DELETE FROM matrice_attachments WHERE id = :id");
    $deleteStmt->execute([':id' => $id]);

    if ($deleteStmt->rowCount() <= 0) {
        throw new Exception('Impossibile eliminare il record allegato');
    }

    if (!empty($filePathRelative) && file_exists($filePathAbsolute) && is_file($filePathAbsolute)) {
        @unlink($filePathAbsolute);
    }

    $pdo->commit();

    $response['success'] = true;
    $response['message'] = 'Allegato eliminato correttamente';
} catch (Throwable $e) {
    if (isset($pdo) && $pdo instanceof PDO && $pdo->inTransaction()) {
        $pdo->rollBack();
    }
    $response['message'] = $e->getMessage();
}

echo json_encode($response, JSON_UNESCAPED_UNICODE);
exit;