timeSync

timeSync.js

##PseudoCode - Just an example
## TBD - Not complete yet.

var mountAdjustDiff = function(start) {

    if(start == 'undefined'){
        return;
    }

    var getTimeUrl = 'http://localhost:8080/index.php/time'; //ServerTime url
    
    beforeTime = Date.now(); //送出Request之前先記一個 timestamp //t1
    $.ajax(getTimeUrl, {
        type: 'GET',
        success: function(response) {

            response = JSON.parse(response);
            var clientTime, timeDiff, serverTime;

            // Get offset
            clientTime = Date.now(); //Ajax Call 結束後再記一個 timestamp (t4)
            timeDiff = (clientTime-beforeTime)/2; //ClientEnd - Client Begin = 去程 t4-t1/2

            serverReplyTime = response.body.time; //t3 -> Call Server時, Server傳回的時間
            
            //This is the answer
            // t3 + (t4-t1) / 2 
            adjustValue = response.body.time + timeDiff;
        }
    });
}