var Helper = {
    "data" : "",
    "fixedData": new Array(),
    fetchData: function(testName){
        let el = document.getElementById('message');
        el.innerHTML = '';
        el.style.display = "none";

        $.post("http://localhost/iot/api/getData.php", {name: testName},function (data, status) {
            Helper.fixedData = new Array();
            Helper.data = data;
            Helper.data.splice(0, 1);
            Helper.data.splice(Helper.data.length - 1, 1)
            var arrayLength = Helper.data.length;
            for (var i = 0; i < arrayLength; i++) {
                let objStr = Helper.data[i];
                let obj = objStr.slice(0, -4);
                obj = obj.slice(3);
                try{
                    tranformeredObj = JSON.parse(obj);
                    if (Helper.validateObj(tranformeredObj)){
                        Helper.fixedData.push(tranformeredObj);
                    }
                }
                catch(error){
                    console.log("Record "+ i + " can't be converted..");
                }
            }
            if (Helper.fixedData.length > 0){
                el.innerHTML = 'Data for test: ' + testName +' loaded!';
                el.style.display = "inline-block";
                el.style.color = "#20d420";
            }
            else if (testName && testName.length > 0){
                el.innerHTML = 'Could not load data for test: ' + testName;
                el.style.display = "inline-block";
                el.style.color = "red";
            }
        }).fail(function (status) {
            el.innerHTML='Could not load data for test: '+testName;
            el.style.display = "inline-block";
            el.style.color = "red";
        });
    },

    validateObj: function(obj){
        if (typeof obj.A.X === 'undefined' || isNaN(obj.A.X)){
            return false;
        }
        if (typeof obj.A.Y === 'undefined' || isNaN(obj.A.Y)){
            return false;
        }
        if (typeof obj.A.Z === 'undefined' || isNaN(obj.A.Z)){
            return false;
        }
        if (typeof obj.M.X === 'undefined' || isNaN(obj.M.X)){
            return false;
        }
        if (typeof obj.M.Y === 'undefined' || isNaN(obj.M.Y)){
            return false;
        }
        if (typeof obj.M.Z === 'undefined' || isNaN(obj.M.Z)){
            return false;
        }
        if (typeof obj.G.X === 'undefined' || isNaN(obj.G.X)){
            return false;
        }
        if (typeof obj.G.Y === 'undefined' || isNaN(obj.G.Y)){
            return false;
        }
        if (typeof obj.G.Z === 'undefined' || isNaN(obj.G.Z)){
            return false;
        }
        return true;
    },

    startSimulation: function(){
        if(Helper.fixedData.length > 0){
            setup();
            start = true;
        }
    }
}