lib/alert.php


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<?php
include_once $_SERVER['DOCUMENT_ROOT'] . '/lib/utils.php';

function create_alert(string $redirect, int $code, string|null $message, mixed $data)
{
    if (IS_JSON_REQUEST) {
        return json_response($code, $message, $data);
    } else {
        http_response_code($code);
        $loc = "Location: $redirect";
        if ($message) {
            $loc .= "?e=$code%20$message";
        }
        header($loc);
        return "$code $message";
    }
}

function display_alert()
{
    if (!isset($_GET['e']) || empty(trim($_GET['e']))) {
        return;
    }

    $message = $_GET['e'];
    $parts = explode(' ', $message, 2);

    $code = intval($parts[0]);

    if (count($parts) > 1) {
        $reason = $parts[1];
    }

    if (isset($reason)) {
        echo '<div class="alert';
        if ($code > 299) {
            echo ' red';
        }
        echo '">';
        echo "<p>$reason</p>";
        echo '</div>';
    }
}