$(document).ready(
    check_new_messages_timeout()

)



var check_msg = null
var it = 0

function check_new_messages_timeout(){


    let window = document.querySelector(".container-messages")
    if (window !== null){


    }
    check_msg = setInterval(function () {

            window = document.querySelector(".container-messages")
            if (window === null){
            //
            } else {
                it = 0
                check_new_messages(window,it)
            }
        },
    10000)
}

var data = null


function check_new_messages (window,it){
    if (it === 0){
        let data_set = document.querySelector(".container-messages").dataset
        let sender = data_set['userId'];
        let receiver = data_set['curReceiver'];
        let ticket_id = data_set['ticketId'];
        data = {
            'sender': sender,
            'receiver': receiver,
            'ticket_id': ticket_id
            // 'last_message_modifiteDT':last_message_time
        }
    }
    // let user_online_check = document.addEventListener("mouseover");
    let last_message_time = document.querySelector(".date_n_time_last_message")
    if (last_message_time === null){
    //
    } else {
        data.last_message_modifiedDT = last_message_time.dataset['modifieddt']
    }

    $.ajax({
        headers: { "X-CSRFToken": $('input[name=csrfmiddlewaretoken]').val() },
        url: '/ru/messages/update_chat/',
        type: "POST",
        // async: true,
        cache: false,
        processData: false,
        contentType: false,
        // enctype: 'json',
        data: JSON.stringify(data),
        success: function(data){
            if (data.html){
                if (data.msgs_count > 1){
                document.querySelector(".container-messages").innerHTML = data.html;
                } else {
                    document.querySelector(".info_profile").innerHTML = data.html;
                }
                if (window === null){
                    clearTimeout(check_msg)
                }
            } else {
            //
            }

        },
        error: function (data){

            let request = document.querySelector(".info_profile").innerHTML = data.responseJSON.html;
            if (request === undefined || window === null){
                clearTimeout(check_msg)
            }
        }
    });
}