//initializing some variables

var last_message = 0;

var chat_message_to = 0;

var send_message = '';

var busy_communication = false;

var z_index = 1;

var chat_hide = 0;

var chat_tab_active = 'public';





 

function chat_start(start){

if(start == 2){

	var chat_height = "25px";

	chat_hide = 1;

	}else{

	var chat_height = "171px";

	}

	if(chat_hide == 1)

		var chat_toggle="expand";

	else

		var chat_toggle="collapse";

//start the ajax calls

window.onload = get_users();

//window.onload = send_recieve_messages();

setInterval("get_users()", 10000);

setInterval("send_recieve_messages()", 3000);

window.onbeforeunload = function () {

    get_users(0);

}





	$("body").append('<div class="chat_box" style="height: '+chat_height+';">'

	+'<div class="chat_header">'

	+'<div id="chat_tab_public" onclick="chat_tab(0);" class="chat_tab chat_tab_active">Public</div>'

	+'<div id="chat_end"class="chat_tab" onclick="return chat_end();"><img src="/wp-content/plugins/amw-chat/img/end.png" alt="[X]" /></div>'

	+'<div id="chat_toggle" class="chat_tab" onclick="return chat_toggle();"><img src="/wp-content/plugins/amw-chat/img/'+chat_toggle+'.png"  alt="-" /></div>'

	+'</div>'

	+'<div class="chat_body">'

	+'<div class="chat_window" id="chat_window_public">'

	+'</div>'

	+'<div class="chat_users">'

	+'<p>Loading...</p>'

	+'</div>'

	+'<div class="chat_submit">'

	+'<form id="chat_form" onsubmit="return set_message(0);">'

	+'<input id="send_message_public" class="send_message" type="text" value="" placeholder="enter your message..."/>'

	+'<input type="submit" id="chat_submit_public" class="chat_submit_botton" value="enter" />'

	+'</form>'

	+'</div>'

	+'<div class="catchall"></div>'

	+'</div>'

	+'<div class="catchall"></div>'

+'</div>');



}



function get_users(status) {//get a list of online users and send current user's status

    status = typeof (status) != 'undefined' ? status : 1; //1 = active, 0 = disconnected

    $.ajax({

        url: '/wp-content/plugins/amw-chat/connect.php',

        type: "POST",

        data: "status=" + status,

        success: function (data) {

            var UserArray = data.split("|");

            $(".chat_users").html("");

            for (i = 0; i < UserArray.length - 1; i++) {

                //alert(UserArray[i]);

                var UserData = UserArray[i].split(";");

                if (UserData[3] == '1') var status_icon = "connected";

                else var status_icon = "disconnected";

				if(getCookie('chat_id') == UserData[0]) var chat_me = "chat_me";

				else var chat_me = "";

                $(".chat_users").append("<div class=\"chat_user "+chat_me+"\" onClick=\"message_user(this);\" id=\"" + UserData[0] + "\">" + "<div id=\"status\" class=\"" + status_icon + "\"></div>" + UserData[1] + "</div>");

                if ($('#chat_tab_' + UserData[0]).length) {

                    $('#chat_tab_' + UserData[0]).find('#status').attr('class', status_icon);

                }

            }

        }

    });

}



function getCookie(c_name)

{

var i,x,y,ARRcookies=document.cookie.split(";");

for (i=0;i<ARRcookies.length;i++)

{

  x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));

  y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);

  x=x.replace(/^\s+|\s+$/g,"");

  if (x==c_name)

    {

    return unescape(y);

    }

  }

}

function setCookie(c_name,value,exdays)

{

var exdate=new Date();

exdate.setDate(exdate.getDate() + exdays);

var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());

document.cookie=c_name + "=" + c_value;

}

function chat_callback() {//clears any pending tab animations for new message alerts so they don't build up.

    $(this).clearQueue();

};



//get new messages more recent than last_message var

//Also sends out message if there is one pending

function send_recieve_messages() {

    busy_communication = true;

    //alert(last_message);

    $.ajax({

        url: '/wp-content/plugins/amw-chat/communication.php',

        type: "POST",

        data: "last_message=" + last_message + "&message_to=" + chat_message_to + "&send_message=" + send_message,

        success: function (data) {

            if (send_message != '') {

                $('#send_message_' + chat_message_to).val('');

                $('.chat_submit_botton').val('enter');

                $('.chat_submit_botton').attr("disabled", false);

                $('.send_message').attr("disabled", false);

                send_message = '';

                busy_communication = false;

            }

            if (data != '') {

                var MessagesArray = data.split("\"");

                for (i = MessagesArray.length - 2; i >= 0; i--) {

                    var Message_data = MessagesArray[i].split("'");

					if(getCookie('chat_id') == Message_data[1]) var chat_me = "chat_from_me";

					else var chat_me = "message_from";

                    if (Message_data[0] == '0') {

                        $("#chat_window_public").append("<br/><span class=\""+chat_me+"\">" + Message_data[2] + "</span>" + " <span class=\"message_time\">[" + Message_data[3] + "]</span> <span class=\"message_text\">" + Message_data[4] + "</span> ");

                        $("#chat_window_public").scrollTop($("#chat_window_public").prop("scrollHeight"));

                        $('#chat_tab_public').effect("highlight", {}, 3000, chat_callback);

                    } else {

                        if ($('#private_' + Message_data[1]).length) {

                            $('#chat_tab_' + Message_data[1]).effect("highlight", {}, 3000, chat_callback);



                        } else {

                            $(".chat_body").before('<div class="private"  style="z-index:' + z_index + ';" id="private_' + Message_data[1] + '" ><div class="chat_window_private" id="chat_window_' + Message_data[1] + '"></div><div class="chat_submit"><form onsubmit="return set_message(' + Message_data[1] + ');" id="chat_form"><input type="text" placeholder="enter your message..." value="" id="send_message_' + Message_data[1] + '" class="send_message"><input type="submit" value="enter" id="chat_submit_' + Message_data[1] + '" class="chat_submit_botton"></form></div><div class="chat_delete" onclick="chat_tab_delete(' + Message_data[1] + ');">close tab</div></div>');

                            $(".chat_header").append('<div class="chat_tab" id="chat_tab_' + Message_data[1] + '" onclick="chat_tab(' + Message_data[1] + ');"><div id="status" class="disconnected"></div>' + Message_data[5] + '</div>');

                            z_index++;

                            chat_tab_select(Message_data[1]);

                        }

                        $("#chat_window_" + Message_data[1]).append("<br/><span class=\""+chat_me+"\">" + Message_data[2] + "</span>" + " <span class=\"message_time\">[" + Message_data[3] + "]</span> <span class=\"message_text\">" + Message_data[4] + "</span> ");

						

                        $("#chat_window_" + Message_data[1]).scrollTop($("#chat_window_" + Message_data[1]).prop("scrollHeight"));

                    }

                }

                last_message = MessagesArray[MessagesArray.length - 1];

            }

        }

    });

}



function message_user(user) {//create personal chat window when user is clicked or switches to tab if already opened

    var user_id = user.getAttribute("id");

    var user_name = user.innerHTML;

    if ($('#private_' + user_id).length) {

        $('#private_' + user_id).css("z-index", z_index);

    } else {

        $(".chat_body").before('<div class="private" style="z-index:' + z_index + ';" id="private_' + user_id + '" ><div class="chat_window_private" id="chat_window_' + user_id + '"></div><div class="chat_submit"><form onsubmit="return set_message(' + user_id + ');" id="chat_form"><input type="text" placeholder="enter your message..." value="" id="send_message_' + user_id + '" class="send_message"><input type="submit" value="enter" id="chat_submit_' + user_id + '" class="chat_submit_botton"></form></div><div class="chat_delete" onclick="chat_tab_delete(' + user_id + ');">close tab</div></div>');

        $(".chat_header").append('<div class="chat_tab" id="chat_tab_' + user_id + '" onclick="chat_tab(' + user_id + ');">' + user_name + '</div>');

        z_index++;

        chat_tab_select(user_id);

    }

}



function chat_tab(user_id) {

    if (user_id != 0) $('#private_' + user_id).css("z-index", z_index);

    else {

        $('.chat_body').css("z-index", z_index);

        user_id = "public";

    }



    $('#chat_tab_' + user_id).css("text-decoration", "none");

    z_index++;

    if (chat_hide == 1) chat_toggle();

    chat_tab_select(user_id);

}



function chat_tab_delete(user_id) {

    //chat_tab_select('public');

    if (user_id != 0) {

        $('#private_' + user_id).remove();

        $('#chat_tab_' + user_id).remove();

    }

}



function chat_tab_select(tab_id) {

    $('#chat_tab_' + chat_tab_active).removeClass('chat_tab_active');

    $('#chat_tab_' + tab_id).addClass('chat_tab_active');

    chat_tab_active = tab_id;

}



function set_message(user_id) {

    if (user_id == 0) user_id = 'public';

    if ($('#send_message_' + user_id).val()) {



        chat_message_to = user_id;

        if ($('#send_message' + user_id).val() != '') {

            send_message = $('#send_message_' + user_id).val();

            $('#chat_submit_' + user_id).val('...');

            $('.chat_submit_botton').attr("disabled", true);

            $('.send_message').attr("disabled", true);

        }

        //alert(send_message);

    }



    return false;

}



function chat_end() {

    if ($(".chat_box").is(":hidden")) {

        $(".chat_box").show("slow");

    } else {

		setCookie("chat_start", 3, 1);

        $(".chat_box").slideUp();

    }

    return false;

}



function chat_toggle() {

    if (chat_hide == 0) {

		setCookie("chat_start", 2, 1);

        $(".chat_box").animate({

            height: '25px'

        }, 500, function () {

            // Animation complete.

        });

        chat_hide = 1;

        $("#chat_toggle").html('<img src="/wp-content/plugins/amw-chat/img/expand.png" alt="^" />');

    } else {

			setCookie("chat_start", 1, 1);

        $(".chat_box").animate({

            height: '151px'

        }, 500, function () {

            // Animation complete.

        });

        chat_hide = 0;

        $("#chat_toggle").html('<img src="/wp-content/plugins/amw-chat/img/collapse.png" alt="-" />');

    }

    return false;



}



$(document).ready(function() {

	var start_chat = getCookie("chat_start");



if(start_chat != 3){

	chat_start(start_chat);

}

 });