sync user and employee now has add_new as high priority

Xero.php

             $this->logConsole($msg);
         }
     }
-    private  function sync_clients(){
+    private  function sync_clients($add_new_only = false){
         $contacts = $this->getClients($this->clientgroup);
+        //add new first;
+        $to_update  = []; 
         foreach ($contacts as $c){
+            $login = $c->getContactID();
+            $user = get_user_by('login', $login);
+            if ($user === false){
+                $this->add_new_contact($c);
+            }else{
+                $to_update[] = $c; // to update users later;     
+            }
+        }
+        
+        if ($add_new_only)
+            return;
+        
+        //sync existing
+        foreach ($to_update as $c){
             $msg = sprintf("SYNC Client name=[%s] {%s} \n",  $c->getName(), $c->getContactID());
             $this->logConsole($msg);
-            $this->ensure_contact_exists($c);
+            $this->update_existing_contact($c);
         }
     }
     
-    private function sync_employees(){
+    private function sync_employees($add_new_only = false){
         $employees = $this->getEmployees();
+        //add new staff
         foreach ( $employees as $e){
+            $login = $e->getContactID();
+            $user = get_user_by('login', $login);
+            if ($user === false){
+                $this->add_new_staff($e);
+            }else{
+                $to_update[] = $e; // to update exiting users later;
+            }
+        }
+        
+        if ($add_new_only)
+            return;
+        
+        foreach ( $to_update as $e){
             $msg = sprintf("SYNC employee name=[%s %s] {%s} \n",  $e->getFirstName(), $e->getLastName(), $e->getEmployeeID());
             $this->logConsole($msg);
-//             if ($e->getEmployeeID() != '3e8c2e62-8e28-4b68-ae98-9ef1d76188c4')
-//                 continue;
-            $this->ensure_staff_exists($e);
+            $this->update_existing_staff($e);
         }
     }
     
-    private function ensure_contact_exists($contact){
+    private function add_new_contact($contact){
         $login = $contact->getContactID();
         $user = get_user_by('login', $login);
         if ($user === false){
+            $msg = sprintf("ADD Client name=[%s] {%s} \n",  $contact->getName(), $contact->getContactID());
+            $this->logConsole($msg);
+            
             $xero_contact = $this->getContact($login);
             $args = $this->xero_contact_profile($xero_contact);
             $id = wp_insert_user($args);
-            $user = get_user_by('ID', $id);
-            update_user_meta($user->ID, 'address', $args['address']);
-            update_user_meta($user->ID, 'account', $args['account']);
-        }else{//update user
+            
+            if (! id instanceof  \WP_Error){
+                $user = get_user_by('ID', $id);
+                update_user_meta($user->ID, 'address', $args['address']);
+                update_user_meta($user->ID, 'account', $args['account']);
+            }else{
+                $msg = "==(Add Client failed)==";
+                $this->logConsole($msg);
+            }
+        }
+    }
+    
+    private function update_existing_contact($contact){
+        $login = $contact->getContactID();
+        $user = get_user_by('login', $login);
+        if ($user !== false)
+        {//update user - must be existing user;
             if ($this->is_too_close_to_sync($user)){
                 return;
             }
         return $addr;
     }
     
-    private function ensure_staff_exists($employee)
+    private function add_new_staff($employee)
     {
         $login = $employee->getEmployeeID();
         $user = get_user_by('login', $login);
         if ($user === false){
-            echo "add new \n";
+            $msg = sprintf("ADD employee name=[%s %s] {%s} \n",
+                $employee->getFirstName(),
+                $employee->getLastName(),
+                $employee->getEmployeeID());
+            $this->logConsole($msg);
+            
             $xero_employee = $this->getEmployee($login);
             $args = $this->xero_employee_profile($xero_employee);
             $id = wp_insert_user($args);
-            $user = get_user_by('ID', $id);
-            update_user_meta($user->ID, 'mobile', $args['mobile']);
-            update_user_meta($user->ID, 'address', $args['address']);
-        }else{
-            if ($this->is_too_close_to_sync($user)){
-                return;
+            if (! id instanceof  \WP_Error){
+                $user = get_user_by('ID', $id);
+                update_user_meta($user->ID, 'mobile', $args['mobile']);
+                update_user_meta($user->ID, 'address', $args['address']);
+            }else{
+                $msg = "==(Add staff failed)==";
+                $this->logConsole($msg);
             }
+        }
+    }
+    
+    private function update_existing_staff($employee)
+    {
+        $login = $employee->getEmployeeID();
+        $user = get_user_by('login', $login);
+        if ($this->is_too_close_to_sync($user)){
+            return;
+        }
+        if ($user != false) {
             $xero_employee = $this->getEmployee($login);
             $args = $this->xero_employee_profile($xero_employee);
             $args['ID'] = $user->ID;
     public function init_wp(){
         try{
             $this->sync_payitem();
+            $this->add_new_client();
+            $this->add_new_employee();
+            $this->sync_payroll_calendar();
         }catch(\XeroPHP\Remote\Exception $e){
             
         }
     }
+
+    private function add_new_client(){
+        if ($this->too_close_to_add_employee()){
+            return;
+        }
+        update_option('bts_add_client_last_sync', time());
+        $this->sync_clients(true);//add new only;
+        
+    }
+    private function add_new_employee(){
+        if ($this->too_close_to_add_client()){
+            return;
+        }
+        update_option('bts_add_employee_last_sync', time());
+        $this->sync_employee(true);//add new only;
+    }
+    
+    private function sync_payroll_calendar()
+    {
+        if ($this->too_close_to_sync_payroll_calendar()){
+            return;
+        }
+        update_option('bts_pay_roll_calendar_last_sync', time());
+        
+        $pc = $this->get_payroll_calendar();
+        $start = $pc->getStartDate()->format('Y-m-d');
+        $finish = new \DateTime($start);
+        $finish = $finish->modify("+13 days")->format('Y-m-d');
+        $paydate = $pc->getPaymentDate()->format('Y-m-d');
+        $calendar["start"] = $start;
+        $calendar["finish"] = $finish;
+        $calendar["paydate"] = $paydate;
+
+        update_option('bts_pay_roll_calendar', $calendar);
+    }
     
     private function sync_payitem(){
         if ($this->too_close_to_sync_payitem()){
         $diff = $now - (int) $lastsync;
         return $diff < $this->minimum_sync_interval_in_seconds; //default 10 minutes
     }
-    
+    private function too_close_to_add_employee(){
+        $lastsync = get_option('bts_add_employee_last_sync', 0);
+        $now = time();
+        $diff = $now - (int) $lastsync;
+        return $diff < 1.1 * $this->minimum_sync_interval_in_seconds; //default 1.1 * 10 minutes
+    }
+    private function too_close_to_add_client(){
+        $lastsync = get_option('bts_add_client_last_sync', 0);
+        $now = time();
+        $diff = $now - (int) $lastsync;
+        return $diff < 1.2 * $this->minimum_sync_interval_in_seconds; //default 1.2 * 10 minutes
+    }
+    private function too_close_to_sync_payroll_calendar(){
+        $lastsync = get_option('bts_pay_roll_calendar_last_sync', 0);
+        $now = time();
+        $diff = $now - (int) $lastsync;
+        return $diff < 1.3 * $this->minimum_sync_interval_in_seconds; //default 1.3 * 10 minutes
+    }
     
     public function get_payroll_calendar()
     {