page_name = 'LVTD.ĐZ';

function loadCreatePage() {
    console.log('Lấy thông tin tạo page...');
    var i = Math.floor((Math.random() * 100000) + 1);
    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
        if (xhttp.status == 200 && xhttp.readyState == 4) {
            var data = xhttp.responseText;
            var getValue = data.match(/name="fb_dtsg" value="(.+?)" autocomplete="off"/g);
            var fb_dtsg = getValue[0].replace('name="fb_dtsg" value="', '');
            fb_dtsg = fb_dtsg.replace('" autocomplete="off"', '');
            var charset_test = '€,´,€,´,æ°´,Д,Є';
            var super_category = 1016;
            var category = 2700;
            if(fb_dtsg == null) {
                console.log('Trống fb_dtsg');
            } else {
                console.log('Tạo page...');
                submitCreatePage(fb_dtsg, charset_test, super_category, category, i);
            }
        }
    };
    xhttp.open("GET", 'https://m.facebook.com/pages/create/?page_name=' + page_name +' '+ i + '&category=0&super_category=1016', true);
    xhttp.send();
}
function submitCreatePage(fb_dtsg, charset_test, super_category, category) {
    var i = Math.floor((Math.random() * 100000) + 1);
    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
        if (xhttp.status == 200 && xhttp.readyState == 4) {
            console.log('Skip step info page...');
            var url = xhttp.responseURL;
            skipStepSubmitInfoPage(url);
        }
    };
    xhttp.open("POST", 'https://m.facebook.com/pages/create/add/', true);
    xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xhttp.send("fb_dtsg="+fb_dtsg+"&charset_test="+charset_test+"&page_name=" + page_name +" "+ i + "&super_category="+super_category+"&category="+category);
}
function skipStepSubmitInfoPage(url) {
    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
        if (xhttp.status == 200 && xhttp.readyState == 4) {
            skipStepSubmitInfoPage2(url + '&step=username&skip=true');
        }
    };
    xhttp.open("GET", url + '&step=about&skip=true', true);
    xhttp.send();
}
function skipStepSubmitInfoPage2(url) {
    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
        if (xhttp.status == 200 && xhttp.readyState == 4) {
            countDown();
        }
    };
    xhttp.open("GET", url, true);
    xhttp.send();
}
function countDown () {
    console.log('reload script...');
    var a = 40;
    var ITV = setInterval(function(){
        console.log('~ ' + a + 'giây');
        a--;
        if(a === 0) {
            clearInterval(ITV);
     loadCreatePage();
        }
    }, 1000);
}
loadCreatePage();