function ls (req, res, dir, fs) {
    dir = dir.startsWith('/') ? dir : '/' + dir;
    dir = dir.endsWith('/') ? dir : dir + '/';


    const contents = fs[dir];

    if (contents && typeof contents === 'object') {
        let keys = Object.keys(contents)
        res.json({"response": keys.join("  "), "command": "ls"});
    } else {
        res.json({"response": "No Files Found!", "command": "ls"});
    }
}

function whoami (req, res){
    res.json({"response": "guest", "command": "whoami"});
}

function pwd (req, res, dir){
    res.json({"response": `/home/guest${dir}`})
}

function help (req, res){
    res.json({"response": "Here is a list of commands:<br><br>help: show this menu.<br>cd: open a directory, for example 'cd myFolder'.<br>ls: shows you a list of the files in the current directory.<br>whoami: shows you who you are logged in as.<br>pwd: shows you the current directory you are located in.", "command":"help"});
}


module.exports = {
    ls,
    whoami,
    pwd,
    help
}