global class cstschedulable implements schedulable{


global User cstUser {get;set;}
 public string Idstring;
 public string cstUsername {get;set;}
 public string cstPassword {get;set;}
 public Id ClientAcctId {get;set;}
 public datetime cstLastUpdate{get;set;}
 public string loginstring {get;set;}
 public map<String, string> cstUserMap{get;set;}

 global void execute(SchedulableContext sc){
 returnAuth();
 }

@future(callout=true)
 static void returnAuth(){
      string xAuthToken;
      string st_Today;

    If (cstUser == null){
    User cstUser = [select Id, CST_User_Name__c,CST_Password__c, CSTlastupdate__c from User where CST_User_Name__c != null ];

    if(cstUser.CST_User_Name__c == null)
    {
    system.debug('cstUser null at UserData');
    }
    else{
    system.debug('cstUser not null at UserData');
    }
    if(cstUser.CST_User_Name__c != null){
    String loginstring = ('"'+cstUser.CST_User_Name__c+'" "password": "'+cstUser.CST_Password__c+'"}');
    String Idstring = string.valueof(cstUser.Id);
    }


    if(loginstring != null){

    HttpRequest req = new HttpRequest();
    HttpResponse res = new HttpResponse();
    Http http = new Http();

    req.setMethod('POST' ); // Method Type

    req.setEndpoint('web210.ntree.com/twig-cstc3/v1/login');//salestree url

    req.setHeader('Content-Type','application/json');
    req.setHeader('{ "username" : ', loginstring);


        res = http.send(req);

        if(res.getBody() != null){
            if(res.getBody() == 'Rejected: check_login returned false:'){
                system.debug('Rejected: check_login returned false:');
            }

        }else{
            system.debug('SalesTree Failed to respond');
        }

if ((parser.getCurrentToken() == JSONToken.FIELD_NAME) &&
        (parser.getText() == 'st:today')){
            parser.nextToken();
            parser.nextToken();
            st_Today = parser.getText();

         }
         if (xAuthToken != null){
            system.debug('Auth Token received');
         }
         else
         {
         system.debug('Auth Token not received');
         }
         if(xAuthToken != null){
            User UpdateUser = new User();
            UpdateUser.Id = Id.valueof(Idstring);

            UpdateUser.X_Auth_token__c = xAuthToken;
            UpdateUser.CSTlastupdate__c = Datetime.now();
            Update UpdateUser;


         }

        }
       }
      }
     }
    }
    else{
   system.debug('loginstring null');
   }
   }
   }