Wordpress_Slack_Integration.php

<?php

namespace justinexample\integrations;

Class SlackIntegration {

  #this is here to carry information from the WP environment to Slack, you can add args as needed for your application
	private static $allowed_args = array(
		'message',
	);

	public $err = false;

	public function __construct(  $name, $args = array() ){
		$this->name = $name ? $this->checkName($name) : false;
		$this->args = $this->checkArgs($args);
	}
  
	private function createProp($prop, $value){
        $this->{$prop} = $value;
    }
	public function checkArgs( $args ){
		if(empty($args)) return false;

		foreach($args as $key=>$value){
			if(in_array($key, self::$allowed_args)){
				$this->createProp($key, $value);
			}
		}
		return $args;
	}
	public function checkName( $name ){
		$info = $this->getBotInfo( $name );
		if(is_array($info)){
			foreach($info as $k=>$v){
				$this->createProp($k,$v);
			}
			return $name;
		} else {
			$this->err = $info;
			return false;
		}
	}
	public function getWebhook(){
		return isset($this->webhook) ? $this->webhook : false;
	}
	public function getId(){
		return isset($this->id) ? $this->id : false;
	}
	public function getChannel(){
		return isset($this->channel) ? $this->channel : false;
	}
	public function postMessage( $message = null ){
		$this->err = false;
		if(!$message) $message = (isset($this->message) && $this->message) ? $this->message : false;
		if($message){
			if($this->webhook){
				
				$body = array('text'=>$message);
				#if(isset($this->channel)) $body['channel'] = $this->channel;
				
				if( !\wp_remote_post($this->webhook,
						array(
							'headers'=> array('content-type'=>'application/json'),
							'body'=> json_encode($body)
						)
					) 
				){
					$this->err = 'Problem with Post Request';
				}

			} else { $this->err = 'Webhook not Set'; }
			
		} else { $this->err = 'Message not Set'; }
	}
  
  #requires Carbon Themes, but only for a quick UI to get the info into the database
  #see https://gist.github.com/zimaben/291fa687287cfffe12cc96db899aec0b for this integration
  #you can add theme options manually, it will be without admin page and UI unless you build it yourself
	
	private function getBotInfo( $string ){
		$return_array = array();
		$bots = \carbon_get_theme_option( 'slack_bots');
		if(is_array($bots) && !empty($bots)){
			foreach($bots as $bot){
				$name = $bot['slack_bot_name'];
				if( trim(strtolower($name)) === trim(strtolower($string)) ){
					$channel = $bot['slack_bot_channel'];
					$id = $bot['slack_bot_customer_id'];
					$webhook = $bot['slack_bot_webhook'];
					$return_array['name'] = $name;
					$return_array['id'] = $id;
					$return_array['channel'] = $channel;
					$return_array['webhook'] = $webhook;
				}
			}
			return (empty($return_array)) ? 'Could not find that Integration' : $return_array;
		} else {
			return 'No bots set up';
		}
	}
}