function toggleFullScreen(elem) {
    // ## The below if statement seems to work better ## if ((document.fullScreenElement && document.fullScreenElement !== null) || (document.msfullscreenElement && document.msfullscreenElement !== null) || (!document.mozFullScreen && !document.webkitIsFullScreen)) {
    if ((document.fullScreenElement !== undefined && document.fullScreenElement === null) || (document.msFullscreenElement !== undefined && document.msFullscreenElement === null) || (document.mozFullScreen !== undefined && !document.mozFullScreen) || (document.webkitIsFullScreen !== undefined && !document.webkitIsFullScreen)) {
        if (elem.requestFullScreen) {
            elem.requestFullScreen();
        } else if (elem.mozRequestFullScreen) {
            elem.mozRequestFullScreen();
        } else if (elem.webkitRequestFullScreen) {
            elem.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
        } else if (elem.msRequestFullscreen) {
            elem.msRequestFullscreen();
        }
        return "on";
    } else {
        if (document.cancelFullScreen) {
            document.cancelFullScreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.webkitCancelFullScreen) {
            document.webkitCancelFullScreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        }
        return 'off';
    }
}

function cmd() {
    const shell = new Cmd({
        selector: '#cmd',
        busy_text: 'Traitement...',
        unknown_cmd: 'Commande non reconnue, tapez help pour avoir la liste des commandes disponibles',
        external_processor: processor
    });
    shell.setPrompt("[chell@glad.os] ➜ ");
}

function processor(input, cmd) {
    input = input.toLowerCase().replaceAll('é', 'e').replaceAll('è', 'e').replaceAll('à', 'a');
    switch (input) {
        case "fullscreen":
            let res = toggleFullScreen(document.getElementById('cmd'));
            return "Fullscreen " + res;
        case "ping":
            return "pong";
        case "ifconfig":
            break;
        case "rate":
            new Promise((resolve, reject) => {
                var audio = new Audio('./success.mp3');
                audio.play();
            });
            return '<div class="ascii">' + $('#lock').html() + '</div><br/>Ouverture !';
        default:
            // Commande inconnue
            return false;
    }
}