<?php
date_default_timezone_set('America/New_York');
$current_time = date('H:i:s');
$day_of_week = date('l');

function performRedirection($time, $day) {
    // Function to check if the current time is between 10:00 AM and 5:30 PM
    function isTimeBetween($time) {
        $start_time = strtotime('09:00:00');
        $end_time = strtotime('21:00:00');
        $current_time = strtotime($time);
        return ($current_time >= $start_time && $current_time <= $end_time);
    }

    // Set common headers for all cases
    header('Cache-Control: no-cache, no-store, must-revalidate');
    header('Pragma: no-cache');
    header('Expires: 0');

    // Check the day of the week and time
    switch ($day) {
        case 'Saturday':
        case 'Sunday':
            // Redirect the user to a different URL with a temporary (302) redirect and HTTPS
            header('Location: https://tiny.cc/csitschedule', true, 302);
            exit;
            break;

        default:
            if (isTimeBetween($time)) {
                // Redirect the user to the first URL with a temporary (302) redirect and HTTPS
                header('Location: https://forms.gle/ia74VKh36EG6tqyo6', true, 302);
                exit;
            } else {
                // Redirect the user to the second URL with a temporary (302) redirect and HTTPS
                header('Location: https://tiny.cc/csitschedule', true, 302);
                exit;
            }
            break;
    }
}

performRedirection($current_time, $day_of_week);
?>