xero oauth2 has been successfully skeletoned with init_wp () working for sync_pay_item().

.gitignore

 .buildpath
 .project
 sample
+/vendor/

.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/ts.iml" filepath="$PROJECT_DIR$/.idea/ts.iml" />
+    </modules>
+  </component>
+</project>

.idea/php.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PhpIncludePathManager">
+    <include_path>
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/version" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/diff" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/recursion-context" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/exporter" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/doctrine/instantiator" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/environment" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/comparator" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/sebastian/global-state" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpspec/prophecy" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/phpunit" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/webmozart/assert" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/symfony/yaml" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/symfony/polyfill-ctype" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/php-code-coverage" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/phpunit-mock-objects" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/php-token-stream" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/composer" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/php-text-template" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/php-file-iterator" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpunit/php-timer" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpdocumentor/reflection-docblock" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpdocumentor/type-resolver" />
+      <path value="$PROJECT_DIR$/xero-php-master/vendor/phpdocumentor/reflection-common" />
+    </include_path>
+  </component>
+  <component name="PhpProjectSharedConfiguration" php_language_level="5.5.0" />
+  <component name="PhpUnit">
+    <phpunit_settings>
+      <PhpUnitSettings custom_loader_path="$PROJECT_DIR$/xero-php-master/vendor/autoload.php" />
+    </phpunit_settings>
+  </component>
+</project>

.idea/ts.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/spec" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/xero-php-master/src/XeroPHP" isTestSource="false" packagePrefix="XeroPHP\" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/version" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/diff" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/recursion-context" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/exporter" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/doctrine/instantiator" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/environment" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/comparator" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/sebastian/global-state" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpspec/prophecy" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/phpunit" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/webmozart/assert" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/symfony/yaml" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/symfony/polyfill-ctype" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/php-code-coverage" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/phpunit-mock-objects" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/php-token-stream" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/composer" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/php-text-template" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/php-file-iterator" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpunit/php-timer" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpdocumentor/reflection-docblock" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpdocumentor/type-resolver" />
+      <excludeFolder url="file://$MODULE_DIR$/xero-php-master/vendor/phpdocumentor/reflection-common" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

Storage.php

+<?php
+namespace Biukop;
+
+class StorageClass
+{
+    private $path;
+
+    private $oauth2 = [];
+    private $oauth2state = "";
+    function __construct() {
+        $this->path = dirname(__FILE__) .  "/xero.json";
+        // \Carbon_Fields\Carbon_Fields::boot();
+        // if( !isset($_SESSION) ){
+        // 	$this->init_session();
+        // }
+    }
+
+    public function read_value() {
+        $this->oauth2state =  carbon_get_theme_option("xero_oauth2state");
+        $this->oauth2["token"] = carbon_get_theme_option("xero_token");
+        $this->oauth2["refresh_token"] = carbon_get_theme_option("xero_refresh_token");
+        $this->oauth2["expires"] = carbon_get_theme_option("xero_expires");
+        $this->oauth2["tenant_id"] = carbon_get_theme_option("xero_tenant_id");
+        $this->oauth2["id_token"] = carbon_get_theme_option("xero_id_token");
+
+        $this->oauth2['expires_human'] = $this->getExpiresHuman($this->oauth2["expires"]);
+    }
+
+    public function init_session(){
+        // session_start();
+    }
+
+    public function getSession() {
+        return $this->oauth2;
+        // return $_SESSION['oauth2'];
+    }
+
+    private function write_json() {
+        $serialize = [
+            "oauth2state" => $this->getOauth2State(),
+            "oauth2" => $this->oauth2,
+        ];
+        file_put_contents($this->path , json_encode($serialize));
+    }
+
+    public function startSession($token, $secret, $expires = null)
+    {
+        // session_start();
+    }
+
+    public function setToken($token, $expires = null, $tenantId, $refreshToken, $idToken)
+    {
+        // $_SESSION['oauth2'] = [
+        //     'token' => $token,
+        //     'expires' => $expires,
+        //     'tenant_id' => $tenantId,
+        //     'refresh_token' => $refreshToken,
+        //     'id_token' => $idToken
+        // ];
+
+        $this->oauth2 = [
+            'token' => $token,
+            'expires' => $expires,
+            'tenant_id' => $tenantId,
+            'refresh_token' => $refreshToken,
+            'id_token' => $idToken,
+            'expires_human' => $this->getExpiresHuman($expires)
+        ];
+
+        carbon_set_theme_option("xero_token", $token);
+        carbon_set_theme_option("xero_refresh_token", $refreshToken);
+        carbon_set_theme_option("xero_expires", $expires);
+        carbon_set_theme_option("xero_tenant_id", $tenantId);
+        carbon_set_theme_option("xero_id_token", $idToken);
+        carbon_set_theme_option("xero_expires_human", $this->getExpiresHuman($expires));
+
+        $this->write_json();
+    }
+
+    public function getOauth2State() {
+        $this->oauth2state =  carbon_get_theme_option("xero_oauth2state");
+        return $this->oauth2state;
+    }
+
+    public function setOauth2State($state) {
+        $this->oauth2state = $state;
+        carbon_set_theme_option("xero_oauth2state", $state);
+        $this->write_json();
+    }
+
+
+    private function getExpiresHuman($time_stamp) {
+        $expire = date("Y-m-d H:i:s", $time_stamp);
+        $utc_date = \DateTime::createFromFormat(
+            "Y-m-d H:i:s",
+            $expire,
+            new \DateTimeZone('UTC')
+        );
+
+        $sydney_date = $utc_date;
+        $sydney_date->setTimeZone(new \DateTimeZone('Australia/Sydney'));
+        $str = $sydney_date->format("Y-m-d H:i:s");
+        return $str;
+    }
+
+    public function getToken()
+    {
+        //If it doesn't exist or is expired, return null
+        // if (empty($this->getSession())
+        //     || ($_SESSION['oauth2']['expires'] !== null
+        //     && $_SESSION['oauth2']['expires'] <= time())
+        // ) {
+        //     return null;
+        // }
+        // return $this->getSession();
+
+        if ( $this->oauth2['expires'] !== null && $this->oauth2['expires'] <= time() ) {
+            return null;
+        }
+        return $this->oauth2;
+    }
+
+    public function getAccessToken()
+    {
+        //return $_SESSION['oauth2']['token'];
+        return $this->oauth2['token'];
+    }
+
+    public function getRefreshToken()
+    {
+        // return $_SESSION['oauth2']['refresh_token'];
+        return $this->oauth2['refresh_token'];
+    }
+
+    public function getExpires()
+    {
+        //return $_SESSION['oauth2']['expires'];
+        return $this->oauth2['expires'];
+    }
+
+    public function getXeroTenantId()
+    {
+        //return $_SESSION['oauth2']['tenant_id'];
+        return $this->oauth2['tenant_id'];
+    }
+
+    public function getIdToken()
+    {
+        // return $_SESSION['oauth2']['id_token'];
+        return $this->oauth2['id_token'];
+    }
+
+    public function getHasExpired()
+    {
+        if (!empty($this->getSession()))
+        {
+            if(time() > $this->getExpires())
+            {
+                return true;
+            } else {
+                return false;
+            }
+        } else {
+            return true;
+        }
+    }
+}
+?>

Xero.php → XeroOauth1.php

 use \XeroPHP\Remote\Exception\RateLimitExceededException; 
 use \XeroPHP\Remote\Exception\NotFoundException;
 
-class Xero {
+class XeroOauth1 {
     private $xero;
     private $clientgroup="48646f3d-cf5e-4fea-8c8b-5812bd540e1b";
     private $minimum_sync_interval_in_seconds = 600;
                 $this->sync_employees();
             }
         }catch(RateLimitExceededException $e){
-            $msg= "Xero API rate limit exceeded, please try again later, existing sync within 600 seconds will by passed automatically\n";
+            $msg= "XeroOauth1 API rate limit exceeded, please try again later, existing sync within 600 seconds will by passed automatically\n";
             $this->logConsole($msg);
         }catch(NotFoundException $e){
-            $msg= "Xero API resource not found rate limit exceeded, please try again later, existing sync within 600 seconds will by passed automatically\n";
+            $msg= "XeroOauth1 API resource not found rate limit exceeded, please try again later, existing sync within 600 seconds will by passed automatically\n";
             $this->logConsole($msg);
         }
     }

css/bts_office.css

 
 }
 
+.sheettitle h1.today {
+    margin: 0 auto 0 auto;
+    color: darkgrey;
+    display: inline-block;
+    font-size: 1.1em;
+}
+
 .sheettitle h1:hover {
     text-decoration: underline;
     font-weight: bolder;
     cursor: pointer;
+    color: black;
+    font-size: 1.3em;
     /* animation: blinker 1s linear infinite; */
 }
 
+
 .timesheets {
     width: calc(100vw - 300px);
     height: 100vh;

html/timesheet_canvas_v1.html

     </div>
     <div class='timesheets'>
         <div class='sheettitle titlebar_gradient'>
-            <h1>Web Office 2020 - Today:<span name='today'> Today </span>  <a style="float:right;margin-right:20px;" href="/time-sheets/"> (old verion 2019) </a></h1> 
+            <h1 class="today">Web Office 2021 - Today:<span name='today'> Today </span></h1> 
         </div>
         <div class='sheetsheader'>
             <div class='weekly'>
                 Confirm_Schedule
 </button>
         </div>
-    </div>
+    </div>

js/bts_timesheet.js

 					return false;
 				}
 //				if (this.get_rate() != this.data.rate){
-//					this.set_err_msg_rate('rate@Xero inactive ' + this.data.rate);
+//					this.set_err_msg_rate('rate@XeroOauth1 inactive ' + this.data.rate);
 //					this.mark_rate_invalid();
 //					this.mark_dirty();
 //					return false;

js/xeroc.js

     	
     	function loading()
     	{
-    		return "<tr class='loading' ><td colspan=4 class='loading'><img src='"+bts().load_job_img +"'><br><h1>Sync to Xero</h1></td></tr>";
+    		return "<tr class='loading' ><td colspan=4 class='loading'><img src='"+bts().load_job_img +"'><br><h1>Sync to XeroOauth1</h1></td></tr>";
     	}
     	
     	function display_hour_lines(response)

ts.php

     private $addr_table; 
     private $ndis_table;
     private $apiv1;
+    private $XeroOauth2;
     private $ndis_price;
     
     public function __construct() {
         $this->setup_db_name();
         $this->class_loader();
         $this->apiv1 = new Apiv1($this, $this->job_table);
+        $this->XeroOauth2 = new XeroOauth2($this);
         //$this->check_csv_download();
         
         add_option( "acare_ts_db_version", "1.0" );
         
         //add_action('init', array($this, 'class_loader'));
         add_action('init', array($this, 'check_csv_download'));
-        
+
+
         add_action('wp', array($this, 'check_auth'));
         add_action('wp_enqueue_scripts', array($this, 'register_js_css'), 99);
         
         $loader->addNamespace('\XeroPHP', dirname(__FILE__) . '/xero-php-master/src/XeroPHP');
         $loader->addNamespace('\Biukop', dirname(__FILE__) . '/' );
         
-        $this->xero = new Xero();
-        $this->xero->init_wp();
+        //$this->xero = new XeroOauth2($this);
+        //$this->xero->init_wp();
         
         //$abc = new AddrMap("01515b52-6936-46b2-a000-9ad4cd7a5b50", "0768db6d-e5f4-4b45-89a2-29f7e8d2953c");
         //$abc = new AddrMap("122eb1d0-d8c4-4fc3-8bf8-b7825bee1a01", "0768db6d-e5f4-4b45-89a2-29f7e8d2953c");
         //echo $sql;
         exit();
     }
+
+    public function init_xero_with_wp() {
+        $this->xero->init_wp();
+    }
     
     private function get_ndis_price()
     {//help to ensure ndis_price is only build once per call