var docCookies = {
    getItem: function (sKey) {
        return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1")) || null;
    },
    setItem: function (sKey, sValue, vEnd, sPath, sDomain, bSecure) {
        if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) { return false; }
        var sExpires = "";
        if (vEnd) {
            switch (vEnd.constructor) {
                case Number:
                    sExpires = vEnd === Infinity ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT" : "; max-age=" + vEnd;
                    break;
                case String:
                    sExpires = "; expires=" + vEnd;
                    break;
                case Date:
                    sExpires = "; expires=" + vEnd.toUTCString();
                    break;
            }
        }
        document.cookie = encodeURIComponent(sKey) + "=" + encodeURIComponent(sValue) + sExpires + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "") + (bSecure ? "; secure" : "");
        return true;
    },
    removeItem: function (sKey, sPath, sDomain) {
        if (!sKey || !this.hasItem(sKey)) { return false; }
        document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + ( sDomain ? "; domain=" + sDomain : "") + ( sPath ? "; path=" + sPath : "");
        return true;
    },
    hasItem: function (sKey) {
        return (new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, "\\$&") + "\\s*\\=")).test(document.cookie);
    }
};

var password = docCookies.getItem('password');


function showLogin(){
    $('#adminCenter').hide();
    $('#passwordForm').show();
}

function showAdminCenter(){
    $('#passwordForm').hide();
    $('#adminCenter').show();
}

function tryLogin(){
    apiRequest('pools', {}, function(response){
        showAdminCenter();
        displayMenu(response.result)
    });
}

function displayMenu(pools){
    $('#poolList').after(Object.keys(pools).map(function(poolName){
        return '<li class="poolMenuItem"><a href="#">' + poolName + '</a></li>';
    }).join(''));
}

function apiRequest(func, data, callback){
    var httpRequest = new XMLHttpRequest();
    httpRequest.onreadystatechange = function(){
        if (httpRequest.readyState === 4 && httpRequest.responseText){
            if (httpRequest.status === 401){
                docCookies.removeItem('password');
                $('#password').val('');
                showLogin();
                alert('Incorrect Password');
            }
            else{
                var response = JSON.parse(httpRequest.responseText);
                callback(response);
            }
        }
    };
    httpRequest.open('POST', '/api/admin/' + func);
    data.password = password;
    httpRequest.setRequestHeader('Content-Type', 'application/json');
    httpRequest.send(JSON.stringify(data));
}

if (password){
    tryLogin();
}
else{
    showLogin();
}

$('#passwordForm').submit(function(event){
    event.preventDefault();
    password = $('#password').val();
    if (password){
        if ($('#remember').is(':checked'))
            docCookies.setItem('password', password, Infinity);
        else
            docCookies.setItem('password', password);
        tryLogin();
    }
    return false;
});