function checkToken(){

    instance.get("token", { withCredentials: true})
    .then(function(response) { 
        if(location.pathname == "/") 
        { 
            location.href="/html/users.html"; 
        }
    })
    .catch(function(error){
        if(location.pathname != "/"){
            location.href="/";
        }
        if(error.response.status == 406){
            instance.delete("token" , {withCredentials:true}).then(function(response){
                location.reload();
           });
        }
    });

}


function buildParam(e, id){
    var search = document.getElementById("searchUser").value;
    var param = "";
    var listParam = ["page", "nbPages"];
    if(id.length > 0){
        var select = document.getElementById(id);
        var getId = select.options[select.selectedIndex].value;
        if(id == "inputRoles"){
            var status = e.target.value;
            if(status != "-2"){
                param = param + "status="+status+"&";
            }
            if(getId != "All"){
                param = param + "roles="+getId;
            }
        }
        if(id == "inputStatus"){
            var roles = e.target.value;
            if(getId != "-2"){
                param = param + "status="+getId+"&";
            }
            if(roles != "All"){
                param = param + "roles="+roles+"&";
            }
       }
    } else {
        listParam.push("roles");
        listParam.push("status");
    }

    if(search.length > 0){
        if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(search)){
            param = param + "email="+search+"&";
          } else {
            param = param + "id="+search+"&";
          }
    } else {
        listParam.push("email"); listParam.push("id");
    }

    for (var i=0; i<listParam.length; i++){
        var query = getQuery(listParam[i]);
        if(query.length > 0){
            param = param + listParam[i]+"="+query+"&";
        }
    }
    return param;
}

function signOut(){

    document.getElementById("signout").addEventListener("click", function(){
        instance.delete("token" , {withCredentials:true}).then(function(response){
             if(response.status == 200) {
                location.href="/";
             }
        });
    });
}

function closeButton(){
    var btnclose = document.getElementsByClassName("btn-close");
    for (var i = 0; i<btnclose.length; i++){
        btnclose[i].addEventListener("click", function(e){
        var parent = e.currentTarget.parentElement;
        if(!parent.classList.contains("hidden")){
            parent.classList.add("hidden");
        }
        
    });
}
}


function getQuery(param){
    var result = "";
    if(location.search.length > 0){
        query = location.search.split("?")[1];
        var variables  = query.split("&")
        for (var i=0; i<variables.length; i++){
            if(variables[i].split("=")[0] == param){
                result = variables[i].split("=")[1];
            }
        }
    }
    return result;
}

function updateParam(param, value){
    var result = "";
    if(location.search.length > 0){
        query = location.search.split("?")[1];
        var variables = query.split("&");
        for (var i=0; i<variables.length; i++){
            var data = variabes[i];
            if(variables[i].split("=")[0] == param){
                data = param+"="+value;
            } 
            result = result + "&" + data;
        }
    }
    return result;
}