[IN-1884] Basic implementation of delete posts

.gitignore

@@ -5,3 +5,5 @@ img/.DS_Store
 *.sublime-workspace
 .vscode/launch.json
 .vscode/settings.json
+.idea/shelf
+.idea/sonarlint

classes/class-sailthru-content.php

@@ -9,7 +9,7 @@ public function __construct() {
 		add_action( 'admin_init', array( $this, 'init_settings'  ), 11 );
 		add_action( 'save_post', array( $this, 'sailthru_save_post' ), 11, 3 );
 		add_action( 'wp_head', array( $this, 'generate_meta_tags' ) );
-
+		add_action( 'wp_trash_post', array( $this, 'sailthru_delete_post'), 11, 2);
 	}
 
 	public function add_admin_menu() {
@@ -345,6 +345,13 @@ function generate_payload( $post, $post_id ) {
 		return $data;
 	}
 
+	private function generate_content_delete_payload( WP_Post $post ): array {
+
+		$url = get_permalink( $post->ID );
+		$url_with_correct_protocol = set_url_scheme( $url );
+
+		return array( 'url' => $url_with_correct_protocol );
+	}
 
 	/*-------------------------------------------
 	 * Utility Functions
@@ -613,6 +620,52 @@ function sailthru_save_post( $post_id, $post, $update ) {
 		}
 	}
 
+	function sailthru_delete_post( int $post_id ) {
+
+		$post = get_post( $post_id );
+
+		if ( !isset($post) ) {
+			return;
+		}
+
+		// Get the content options to see if we want to fire the API.
+		$options = get_option( 'sailthru_content_settings' );
+
+		// Check to see if Content API is disabled in the UI
+		if( !isset ($options['sailthru_content_api_status'] ) || "false" === $options['sailthru_content_api_status'] ) {
+			return;
+		}
+
+		// See if a filter has disabled the content API, this may be done to override a specific use case.
+		if ( false === apply_filters( 'sailthru_content_api_enable', true ) ) {
+			return;
+		}
+
+		if ( in_array( $post->post_type, $options['sailthru_content_post_types'], true ) ) {
+
+			if ( 'publish' === $post->post_status ) {
+				// Make sure Sailthru is setup
+				if ( get_option( 'sailthru_setup_complete' ) ) {
+					$sailthru   = get_option( 'sailthru_setup_options' );
+					$api_key    = $sailthru['sailthru_api_key'];
+					$api_secret = $sailthru['sailthru_api_secret'];
+					$client     = new WP_Sailthru_Client( $api_key, $api_secret );
+
+					try {
+						if ( $client ) {
+							$data = $this->generate_content_delete_payload( $post );
+							// Make the API call to Sailthru
+							$api = $client->apiDelete( 'content', $data );
+						}
+					} catch ( Sailthru_Client_Exception $e ) {
+						write_log($e);
+						return;
+					}
+				}
+			}
+		}
+	}
+
 }
 
 new Sailthru_Content_Settings;

classes/class-wp-sailthru-client.php

@@ -86,7 +86,7 @@ function httpRequestCurl( $action, array $data, $method = 'POST', $options = []
 
 		$url = $this->api_uri . '/' . $action;
 
-		if ( 'GET' === $method ) {
+		if ( $method === 'GET' || $method === 'DELETE' ) {
 			$url_with_params = $url;
 			if ( count( $data ) > 0 ) {
 				$url_with_params .= '?' . http_build_query( $data );
@@ -122,6 +122,8 @@ function httpRequestCurl( $action, array $data, $method = 'POST', $options = []
 			} else {
 				$reply = wp_remote_get( $url, $data );
 			}
+		} else if ( $method === 'DELETE' ) {
+			$reply = wp_remote_request( $url, [ 'method' => 'DELETE' ] );
 		} else {
 			$reply = wp_remote_post( $url, $data );
 		}

lib/Sailthru_Client.php

@@ -1498,6 +1498,8 @@ protected function httpRequestWithoutCurl($action, $data, $method = 'POST', $opt
 
     /**
      * Perform an HTTP request, checking for curl extension support
+	 *
+	 * @see WP_Sailthru_Client::httpRequestCurl() for override of httpRequestCurl
      *
      * @param $action
      * @param array $data
@@ -1507,6 +1509,7 @@ protected function httpRequestWithoutCurl($action, $data, $method = 'POST', $opt
      * @throws Sailthru_Client_Exception
      */
     protected function httpRequest($action, $data, $method = 'POST', $options = [ ]) {
+		// See WP_Sailthru_Client::httpRequestCurl() for this override
         $response = $this->{$this->http_request_type}($action, $data, $method, $options);
         $json = json_decode($response, true);
         if ($json === NULL) {