/**
	 * buy post
	 * not supported
	 */ 
	function _buy_post() {
		global $wpdb;
		// get system settings
		$system_obj = mgm_get_class('system');
		$dge  = bool_from_yn($system_obj->get_setting('disable_gateway_emails'));
				
		// get passthrough, stop further process if fails to parse
		$custom = $this->_get_transaction_passthrough($_REQUEST['extra']);
		// local var
		extract($custom);	
		
		// find user
		$user     = get_userdata($user_id);
		$blogname = get_option('blogname');
		$tran_success = false;
		
		// errors
		$errors = array();
		// set test status		
		$ctransaction=($this->status=='test') ? preg_replace('/^TEST_/', '', $_POST['ctransaction']) : $_POST['ctransaction'];
		
		// check 
		switch (trim($ctransaction)) {
			case "user.add" :
			case "sale" :
				$tran_success = true;
				$status_str = __('Last payment was successful','mgm');
				// $subject = sprintf(__('[%s] Payment receipt','mgm'),$blogname);
				// $message = __('This is an automatic notification from %1$s to %2$s (%3$s).<br />This is a notification to inform you that your payment was successful and the post you purchased is now available to view.<br />For more information please contact %4$s','mgm');
				// $message = sprintf($message, $blogname, $user->display_name, $user->user_email, $system_obj->setting['admin_email']);
				// issue#: 280 (2011 Feb 25)
				// subject
				$subject = $system_obj->get_template('payment_success_email_template_subject', array('blogname'=>$blogname), true);
				// body
				$message = $system_obj->get_template('payment_success_email_template_body', 
										array('blogname'=>$blogname, 'name'=>$user->display_name, 
											  'email'=>$user->user_email, 
											  'admin_email'=>$system_obj->setting['admin_email']), true);
				// after succesful payment hook
				do_action('mgm_buy_post_transaction_success', array('post_id' => $post_id));// backward compatibility
				do_action('mgm_post_purchase_payment_success', array('post_id' => $post_id));// new organized name
				break;

			case "chargeback" :
			case "refund" :
				$status_str = __('Last payment was refunded or denied','mgm');
				// $subject = sprintf(__('[%s] Payment Failed','mgm'), $blogname);
				// $message = __('This is an automatic notification from %1$s to %2$s (%3$s).<br />This is a notification to inform you that your post purchase failed for the following reason: %4$s.<br />For more information please contact %5$s.','mgm');
				// $message = sprintf($message, $blogname, $user->display_name, $user->user_email, $status_str, $system_obj->setting['admin_email']);
				// issue#: 280 (2011 Feb 25)
				// subject
				$subject = $system_obj->get_template('payment_failed_email_template_subject', array('blogname'=>$blogname), true);
				 
				// body			
				$message = $system_obj->get_template('payment_failed_email_template_body', 
										array('blogname'=>$blogname, 'name'=>$user->display_name, 
											  'email'=>$user->user_email, 'payment_type'=>'post purchase payment','reason'=>$status_str,
											  'admin_email'=>$system_obj->setting['admin_email']), true);
				// error
				$errors[] = $status_str;
			break;

			case "cancel" :
				$reason = 'Unknown';
				$status_str = sprintf(__('Last payment is pending. Reason: %s','mgm'), $reason);
				// $subject = "[" . $blogname . "] Payment receipt - Status Pending";
				// $message = __('This is an automatic notification from %1$s to %2$s (%3$s).<br />This is a notification to inform you that you payment was received in pending status. Status: %4$s.<br />For more information please contact %5$s','mgm');
				// $message = sprintf($message, $blogname, $user->display_name, $user->user_email, $status_str, $system_obj->setting['admin_email']);
				// issue#: 280 (2011 Feb 25)
				// subject
				$subject = $system_obj->get_template('payment_pending_email_template_subject', array('blogname'=>$blogname), true);
				// body	
				$message = $system_obj->get_template('payment_pending_email_template_body', 
										array('blogname'=>$blogname, 'name'=>$user->display_name, 
											  'email'=>$user->user_email, 'reason'=>$status_str,
											  'admin_email'=>$system_obj->setting['admin_email']), true);
				// error
				$errors[] = $status_str;
			break;

			default:
				$status_str = sprintf(__('Last payment status: %s','mgm'),$ctransaction);
				// $subject = "[$blogname] Payment receipt";
				// $message = __('This is an automatic notification from %1$s to %2$s (%3$s).<br />Status: %4$s.<br />For more information please contact %5$s','mgm');
				// $message = sprintf($message, $blogname, $user->display_name, $user->user_email, $status_str, $system_obj->setting['admin_email']);
				// issue#: 280 (2011 Feb 25)
				// subject
				$subject = $system_obj->get_template('payment_unknown_email_template_subject', array('blogname'=>$blogname), true);				
				// body	
				$message = $system_obj->get_template('payment_unknown_email_template_body', array('blogname'=>$blogname, 'name'=>$user->display_name, 
				                                                                              'email'=>$user->user_email, 'reason'=>$status_str,
																							  'admin_email'=>$system_obj->setting['admin_email']), true);
				// error
				$errors[] = $status_str;
		}

		// do action
		do_action('mgm_return_post_purchase_payment_'.$this->module, array('post_id' => $post_id));// new 
		
		// notify user
		mgm_mail($user->user_email, $subject, $message); //send an email to the buyer		

		$status = __('Failed join', 'mgm'); //overridden on a successful payment
		if ($tran_success) {
			
			//issue #1421
			if($user_id){				
				do_action('mgm_update_coupon_usage', array('user_id' => $user_id));				
			}			
			
			$table_name = TBL_MGM_POST_PURCHASES;
			
			//if we are looking at a pack then explode the buy post item number and loop through it
			if (strpos($post_id, ',') !== false) {
				$posts = explode(',', $post_id);
			} else {
				$posts = array($post_id);
			}
			
			$posts = array_unique($posts);
			
			foreach ($posts as $post_id) {
				$sql = "INSERT INTO " . $table_name . " (user_id, post_id, unixtime)
					VALUES (" . $user_id . ", " . $post_id . ", UNIX_TIMESTAMP())";
				$wpdb->query($sql); //insert the post purchased record
			}

			$status = __('The post was purchased successfully', 'mgm');
		}
		
		// transaction status
		mgm_update_transaction_status($_REQUEST['custom'], $status, $status_str);
		
		// notify admin, only if gateway emails on
		if (!$dge) {
			$subject = "[" . $blogname . "] Admin Notification: " . $user->user_email . " purchased post " . $post_id;
			$message = "User display name: {$user->display_name}<br />User email: {$user->user_email}<br />User ID: {$user->ID}<br />Status: " . $status . "<br />Action: Purchase post:" . $subject . "<br /><br />" . $message . "<br /><br /><pre>" . print_r($_POST, true) . '</pre>';
			mgm_mail($system_obj->setting['admin_email'], $subject, $message);
		}
		
		// error condition redirect
		if(count($errors)>0){
			mgm_redirect(add_query_arg(array('status'=>'error', 'errors'=>implode('|', $errors)), $this->_get_thankyou_url()));
		}
	}
	*********************************************************************/

if(!$dge){
					$message = 'Could not read membership type in the following POST data. Please debug or contact magic members to fix the problem making sure to pass on the following data. <br /><br /><pre>' . "\n\n" . print_r($_POST, true) . '</pre>';
					mgm_mail($system_obj->setting['admin_email'], 'Error in Zombaio membership verification', $message);
				}	


// on status
		switch ($member->status) {
			case MGM_STATUS_ACTIVE:				
				//Sending notification email to user - issue #1468
				if($notify_user && $is_registration =='Y'){
					$user_pass = mgm_decrypt_password($member->user_password, $user_id);
					do_action('mgm_register_user_notification', $user_id, $user_pass);
				}
				//sending upgrade notifaction email to admin
				if(isset($subscription_option) && $subscription_option =='upgrade'){
					do_action('mgm_user_upgrade_notification', $user_id);
				}				
				// subject
				$subject = $system_obj->get_template('payment_success_email_template_subject', array('blogname'=>$blogname), true);
				// check
				if ($member->payment_type == 'subscription') {
					$payment_type = 'recurring subscription';
					$subscription = sprintf('%1$s %2$s every %3$s %4$s',$member->amount, $member->currency, $member->duration, 
					                                                    $duration_str[$member->duration_type]);
				} else {					
					$payment_type = 'one-time payment';
					$subscription = sprintf('%1$s %2$s for %3$s %4$s',$member->amount, $member->currency, $member->duration, 
					                                                  $duration_str[$member->duration_type]);	
				}
				
				// body
				$message = $system_obj->get_template('payment_success_subscription_email_template_body', 
													array('blogname'=>$blogname, 'name'=>$user->display_name, 
														  'email'=>$user->user_email, 'payment_type'=>$payment_type,
														  'subscription'=>$subscription,'admin_email'=>$system_obj->setting['admin_email']), true);
				break;

			case MGM_STATUS_NULL:				
				// subject
				$subject = $system_obj->get_template('payment_failed_email_template_subject', array('blogname'=>$blogname), true);				
				// message
				$message = $system_obj->get_template('payment_failed_email_template_body', 
									array('blogname'=>$blogname, 'name'=>$user->display_name, 
										  'email'=>$user->user_email, 'payment_type'=>'subscription payment',
										  'reason'=>$member->status_str,
										  'admin_email'=>$system_obj->setting['admin_email']), true);
				break;

			case MGM_STATUS_PENDING:				
				// subject
				$subject = $system_obj->get_template('payment_pending_email_template_subject', array('blogname'=>$blogname), true);
				// body
				$message = $system_obj->get_template('payment_pending_email_template_body', 
										array('blogname'=>$blogname, 'name'=>$user->display_name, 
											  'email'=>$user->user_email, 'reason'=>$member->status_str,
											  'admin_email'=>$system_obj->setting['admin_email']), true);
				break;

			case MGM_STATUS_ERROR:				
				// subject
				$subject = $system_obj->get_template('payment_error_email_template_subject', array('blogname'=>$blogname), true);				
				// body	
				$message = $system_obj->get_template('payment_error_email_template_body', 
									array('blogname'=>$blogname, 'name'=>$user->display_name, 
										  'email'=>$user->user_email, 'reason'=>$member->status_str,
										  'admin_email'=>$system_obj->setting['admin_email']), true);
				break;
		}

		// notify user
		if(!$dpne) {
			if($acknowledge_user) {
				//issue #862
				$subject = mgm_replace_email_tags($subject,$user_id);
				$message = mgm_replace_email_tags($message,$user_id);
				
				mgm_mail($user->user_email, $subject, $message);
				//update as email sent 
				$this->record_payment_email_sent($_REQUEST['extra']);	
			}
		}		

		// notify admin, only if gateway emails on
		if (!$dge && $acknowledge_user) {
			$subject = "[$blogname] {$user->user_email} - {$member->status}";
			$message = "	User display name: {$user->display_name}\n\n<br />
					User email: {$user->user_email}\n\n<br />
					User ID: {$user->ID}\n\n<br />
					Membership Type: {$membership_type}\n\n<br />
					New status: {$member->status}\n\n<br />
					Status message: {$member->status_str}\n\n<br />
					Subscription period: {$member->duration} ". $duration_str[$member->duration_type] ."\n\n<br />
					Subscription amount: {$member->amount} {$member->currency}\n<br />
					Payment Mode: {$member->payment_type}\n\n<br />
					[remarks]<br>					
					POST Data was: \n\n<br /><br /><pre>" . print_r($_POST, true) . '</pre>';
			// add remarks
			if(isset($member->extra_remarks)){
				$message = str_replace('[remarks]', $member->extra_remarks,$message);
			}else{
				$message = str_replace('[remarks]', '',$message);
			}		
			// mail		
			mgm_mail($system_obj->setting['admin_email'], $subject, $message);
		}				


// subject
		$subject = $system_obj->get_template('subscription_cancelled_email_template_subject', array('blogname'=>$blogname), true);				
		// body	
		$message = $system_obj->get_template('subscription_cancelled_email_template_body', 
							array('blogname'=>$blogname, 'name'=>$user->display_name, 
								  'email'=>$user->user_email, 'admin_email'=>$system_obj->setting['admin_email']), true);
		// send email notification to user
		if(!$dpne) {
			//issue #862
			$subject = mgm_replace_email_tags($subject,$user_id);
			$message = mgm_replace_email_tags($message,$user_id);
			// mail
			mgm_mail($user->user_email, $subject, $message);		
		}

		// notify admin, only if gateway emails on
		if (!$dge) {
			$subject = "[$blogname] {$user->user_email} - {$new_status}";
			$message = "	User display name: {$user->display_name}\n\n<br />
					User email: {$user->user_email}\n\n<br />
					User ID: {$user->ID}\n\n<br />
					Membership Type: {$membership_type}\n\n<br />
					New status: {$new_status}\n\n<br />
					Status message: {$member->status_str}\n\n<br />					
					Payment Mode: Cancelled\n\n<br />
					POST Data was: \n\n<br /><br /><pre>" . print_r($_POST, true) . '</pre>';
			mgm_mail($system_obj->setting['admin_email'], $subject, $message);
		}

if(!$dge) {
				$user = get_userdata($user_id);
				//send notification email to admin:
				$message = (__('The User: ', 'mgm')). $user->user_email.' ('. $user_id .') '.(__('has upgraded/cancelled subscription.', 'mgm'));
				$message .= "<br/>" .__('Please unsubscribe the user subscription from Gateway Merchant panel.', 'mgm');						
				if(!empty($member->transaction_id))
					$message .= "<br/>" .__('MGM Transaction Id:' ,'mgm' ) . $member->transaction_id;		
				//admin email:
				if(!empty($system_obj->setting['admin_email']))
					@mgm_mail($system_obj->setting['admin_email'], sprintf(__('[%s] User Subscription Cancellation', 'mgm'), get_option('blogname')), $message);
								
			}