re-add post model (#386)

includes/model/class-post.php

@@ -0,0 +1,131 @@
+<?php
+namespace Activitypub\Model;
+
+use Activitypub\Transformer\Post as Post_Transformer;
+
+/**
+ * ActivityPub Post Class
+ *
+ * @author Matthias Pfefferle
+ */
+class Post {
+	/**
+	 * The \Activitypub\Activity\Base_Object object.
+	 *
+	 * @var \Activitypub\Activity\Base_Object
+	 */
+	protected $object;
+
+	/**
+	 * The WordPress Post Object.
+	 *
+	 * @var WP_Post
+	 */
+	private $post;
+
+	/**
+	 * Constructor
+	 *
+	 * @param WP_Post $post
+	 * @param int     $post_author
+	 */
+	// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.FoundAfterLastUsed, VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
+	public function __construct( $post, $post_author = null ) {
+		_deprecated_function( __CLASS__, '1.0.0', '\Activitypub\Transformer\Post' );
+
+		$this->post   = $post;
+		$this->object = Post_Transformer::transform( $post )->to_object();
+	}
+
+	/**
+	 * Returns the User ID.
+	 *
+	 * @return int the User ID.
+	 */
+	public function get_user_id() {
+		return apply_filters( 'activitypub_post_user_id', $this->post->post_author, $this->post );
+	}
+
+	/**
+	 * Converts this Object into an Array.
+	 *
+	 * @return array the array representation of a Post.
+	 */
+	public function to_array() {
+		return \apply_filters( 'activitypub_post', $this->object->to_array(), $this->post );
+	}
+
+	/**
+	 * Returns the Actor of this Object.
+	 *
+	 * @return string The URL of the Actor.
+	 */
+	public function get_actor() {
+		$user = User_Factory::get_by_id( $this->get_user_id() );
+
+		return $user->get_url();
+	}
+
+	/**
+	 * Converts this Object into a JSON String
+	 *
+	 * @return string
+	 */
+	public function to_json() {
+		return \wp_json_encode( $this->to_array(), \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_QUOT );
+	}
+
+	/**
+	 * Returns the URL of an Activity Object
+	 *
+	 * @return string
+	 */
+	public function get_url() {
+		return $this->object->get_url();
+	}
+
+	/**
+	 * Returns the ID of an Activity Object
+	 *
+	 * @return string
+	 */
+	public function get_id() {
+		return $this->object->get_id();
+	}
+
+	/**
+	 * Returns a list of Image Attachments
+	 *
+	 * @return array
+	 */
+	public function get_attachments() {
+		return $this->object->get_attachment();
+	}
+
+	/**
+	 * Returns a list of Tags, used in the Post
+	 *
+	 * @return array
+	 */
+	public function get_tags() {
+		return $this->object->get_tag();
+	}
+
+	/**
+	 * Returns the as2 object-type for a given post
+	 *
+	 * @return string the object-type
+	 */
+	public function get_object_type() {
+		return $this->object->get_type();
+	}
+
+	/**
+	 * Returns the content for the ActivityPub Item.
+	 *
+	 * @return string the content
+	 */
+	public function get_content() {
+		return $this->object->get_content();
+	}
+}