Add static html REST controller

apppresser-offline-cache.php

@@ -161,8 +161,10 @@ public function plugin_classes() {
 	 * @return void
 	 */
 	public function hooks() {
-		add_action( 'init', array( $this, 'init' ) );
-		$this->controllers->hooks();
+		if ( $this->check_requirements() ) {
+			add_action( 'init', array( $this, 'init' ) );
+			$this->controllers->hooks();
+		}
 	}
 
 	/**
@@ -192,9 +194,7 @@ public function _deactivate() {}
 	 * @return void
 	 */
 	public function init() {
-		if ( $this->check_requirements() ) {
-			load_plugin_textdomain( 'apppresser-offline-cache', false, dirname( $this->basename ) . '/languages/' );
-		}
+		load_plugin_textdomain( 'apppresser-offline-cache', false, dirname( $this->basename ) . '/languages/' );
 	}
 
 	/**
@@ -239,7 +239,7 @@ public static function meets_requirements() {
 		// Do checks for required classes / functions
 		// function_exists('') & class_exists('').
 		// We have met all requirements.
-		return true;
+		return function_exists( 'rest_api_init' ) && class_exists( 'WP_REST_Posts_Controller' );
 	}
 
 	/**
@@ -251,10 +251,31 @@ public static function meets_requirements() {
 	public function requirements_not_met_notice() {
 		// Output our error.
 		echo '<div id="message" class="error">';
-		echo '<p>' . sprintf( __( 'AppPresser Offline Cache is missing requirements and has been <a href="%s">deactivated</a>. Please make sure all requirements are available.', 'apppresser-offline-cache' ), admin_url( 'plugins.php' ) ) . '</p>';
+		echo '<p>' . sprintf( __( 'AppPresser Offline Cache is missing requirements and has been <a href="%s">deactivated</a>. Please make sure all requirements are available. <em>Requirements include: At least WordPress 4.4, and the WordPress REST API plugin.</em>', 'apppresser-offline-cache' ), admin_url( 'plugins.php' ) ) . '</p>';
 		echo '</div>';
 	}
 
+	public function get_option( $key = false, $fallback = false ) {
+		if ( function_exists( 'appp_get_setting' ) ) {
+			return appp_get_setting( $key, $fallback );
+		}
+
+		// Otherwise, duplicate appp_get_setting functionality.
+		$settings = get_option( 'appp_settings' );
+		$value = $settings;
+
+		if ( $key ) {
+			$setting = isset( $settings[ $key ] ) ? $settings[ $key ] : false;
+			// Override value or supply fallback
+			$value = apply_filters( 'apppresser_setting_default', $setting, $key, $settings, $fallback );
+			if ( ! $value ) {
+				$value = $fallback;
+			}
+		}
+
+		return $value;
+	}
+
 	/**
 	 * Magic getter for our object.
 	 *

includes/class-rest-controllers.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * AppPresser Offline Cache Endpoints
+ * @version 0.0.0
+ * @package AppPresser Offline Cache
+ */
+
+class APOC_REST_Controllers {
+
+	/**
+	 * Parent plugin class
+	 *
+	 * @var   class
+	 * @since NEXT
+	 */
+	protected $plugin = null;
+
+	/**
+	 * Instance of APOC_Static_HTML_Controller
+	 *
+	 * @since NEXT
+	 * @var APOC_Static_HTML_Controller
+	 */
+	protected $static_html;
+
+	/**
+	 * Constructor
+	 *
+	 * @since  NEXT
+	 * @param  object $plugin Main plugin object.
+	 * @return void
+	 */
+	public function __construct( $plugin ) {
+		$this->plugin = $plugin;
+	}
+
+	/**
+	 * Initiate our hooks
+	 *
+	 * @since  NEXT
+	 * @return void
+	 */
+	public function hooks() {
+		// Waited to initiate until WP_REST_Posts_Controller is ready.
+		$this->static_html = new APOC_Static_HTML_Controller( $this->plugin );
+
+		add_action( 'rest_api_init', array( $this->static_html, 'register_routes' ) );
+	}
+
+	/**
+	 * Magic getter for our object.
+	 *
+	 * @since  NEXT
+	 * @param string $field Field to get.
+	 * @throws Exception Throws an exception if the field is invalid.
+	 * @return mixed
+	 */
+	public function __get( $field ) {
+		switch ( $field ) {
+			case 'static_html':
+				return $this->$field;
+			default:
+				throw new Exception( 'Invalid '. __CLASS__ .' property: ' . $field );
+		}
+	}
+}