<?php
/*
Plugin Name: Easy Digital Downloads - Favorites
Plugin URI: https://easydigitaldownloads.com/downloads/edd-favorites
Description: An add-on for EDD Wish Lists. Favorite/Unfavorite downloads in just 1 click.
Version: 1.0.8
Author: Easy Digital Downloads
Author URI: https://easydigitaldownloads.com
License: GPL-2.0+
License URI: http://www.opensource.org/licenses/gpl-license.php
*/

// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;

if ( ! class_exists( 'EDD_Favorites' ) ) :

	final class EDD_Favorites {

		/**
		 * Holds the instance
		 *
		 * Ensures that only one instance of EDD Favorites exists in memory at any one
		 * time and it also prevents needing to define globals all over the place.
		 *
		 * TL;DR This is a static property property that holds the singleton instance.
		 *
		 * @var object
		 * @static
		 * @since 1.0
		 */
		private static $instance;

		/**
		 * Main Instance
		 *
		 * Ensures that only one instance exists in memory at any one
		 * time. Also prevents needing to define globals all over the place.
		 *
		 * @since 1.0
		 *
		 */
		public static function get_instance() {
			if ( ! isset( self::$instance ) && ! ( self::$instance instanceof EDD_Favorites ) ) {
				self::$instance = new EDD_Favorites;
				self::$instance->setup_globals();
				self::$instance->hooks();
				self::$instance->includes();

			}

			return self::$instance;
		}

		/**
		 * Constructor Function
		 *
		 * @since 1.0
		 * @access private
		 * @see EDD_Favorites::init()
		 * @see EDD_Favorites::activation()
		 */
		private function __construct() {
			self::$instance = $this;

			add_action( 'init', array( $this, 'init' ) );
		}

		/**
		 * Reset the instance of the class
		 *
		 * @since 1.0
		 * @access public
		 * @static
		 */
		public static function reset() {
			self::$instance = null;
		}

		/**
		 * Globals
		 *
		 * @since 1.0
		 * @return void
		 */
		private function setup_globals() {
			$this->version 		= '1.0.8';
			$this->title 		= 'EDD Favorites';

			// paths
			$this->file         = __FILE__;
			$this->basename     = apply_filters( 'edd_favorites_plugin_basenname', plugin_basename( $this->file ) );
			$this->plugin_dir   = apply_filters( 'edd_favorites_plugin_dir_path',  plugin_dir_path( $this->file ) );
			$this->plugin_url   = apply_filters( 'edd_favorites_plugin_dir_url',   plugin_dir_url ( $this->file ) );
		}

		/**
		 * Function fired on init
		 *
		 * This function is called on WordPress 'init'. It's triggered from the
		 * constructor function.
		 *
		 * @since 1.0
		 * @access public
		 *
		 * @uses EDD_Favorites::load_textdomain()
		 *
		 * @return void
		 */
		public function init() {
			do_action( 'edd_favorites_before_init' );

			$this->load_textdomain();

			do_action( 'edd_favorites_after_init' );
		}

		/**
		 * Includes
		 *
		 * @since 1.0
		 * @access private
		 * @return void
		 */
		private function includes() {
			require_once( dirname( $this->file ) . '/includes/emails.php' );
			require_once( dirname( $this->file ) . '/includes/filters.php' );
			require_once( dirname( $this->file ) . '/includes/functions.php' );
			require_once( dirname( $this->file ) . '/includes/template-functions.php' );
			require_once( dirname( $this->file ) . '/includes/ajax-functions.php' );
			require_once( dirname( $this->file ) . '/includes/shortcodes.php' );
			require_once( dirname( $this->file ) . '/includes/scripts.php' );

		}

		/**
		 * Setup the default hooks and actions
		 *
		 * @since 1.0
		 *
		 * @return void
		 */
		private function hooks() {
			// insert actions
			do_action( 'edd_favorites_setup_actions' );
		}

		/**
		 * Loads the plugin language files
		 *
		 * @access public
		 * @since 1.0
		 * @return void
		 */
		public function load_textdomain() {
			// Set filter for plugin's languages directory
			$lang_dir = dirname( plugin_basename( $this->file ) ) . '/languages/';
			$lang_dir = apply_filters( 'edd_favorites_languages_directory', $lang_dir );

			// Traditional WordPress plugin locale filter
			$locale        = apply_filters( 'plugin_locale',  get_locale(), 'edd-favorites' );
			$mofile        = sprintf( '%1$s-%2$s.mo', 'edd-favorites', $locale );

			// Setup paths to current locale file
			$mofile_local  = $lang_dir . $mofile;
			$mofile_global = WP_LANG_DIR . '/edd-favorites/' . $mofile;

			if ( file_exists( $mofile_global ) ) {
				load_textdomain( 'edd-favorites', $mofile_global );
			} elseif ( file_exists( $mofile_local ) ) {
				load_textdomain( 'edd-favorites', $mofile_local );
			} else {
				// Load the default language files
				load_plugin_textdomain( 'edd-favorites', false, $lang_dir );
			}
		}

		/**
		 * Plugin settings link
		 *
		 * @since 1.0
		*/
		public function settings_link( $links ) {
			$plugin_links = array(
				'<a href="' . admin_url( 'edit.php?post_type=download&page=edd-settings&tab=extensions' ) . '">' . __( 'Settings', 'edd-favorites' ) . '</a>',
			);

			return array_merge( $plugin_links, $links );
		}

	}


/**
 * Loads a single instance
 *
 * This follows the PHP singleton design pattern.
 *
 * Use this function like you would a global variable, except without needing
 * to declare the global.
 *
 * @example <?php $edd_favorites = edd_favorites_load(); ?>
 *
 * @since 1.0
 *
 * @see EDD_Favorites::get_instance()
 *
 * @return object Returns an instance of the main class
 */
function edd_favorites_load() {


    if ( ! class_exists( 'Easy_Digital_Downloads' ) || ! class_exists( 'EDD_Wish_Lists' ) ) {

        if ( ! class_exists( 'EDD_Extension_Activation' ) || ! class_exists( 'EDD_Wish_Lists_Activation' ) ) {
            require_once 'includes/class-activation.php';
        }

        // EDD activation
		if ( ! class_exists( 'Easy_Digital_Downloads' ) ) {
			$edd_activation = new EDD_Extension_Activation( plugin_dir_path( __FILE__ ), basename( __FILE__ ) );
			$edd_activation = $edd_activation->run();
		}

       	// EDD Wish Lists activation
		if ( ! class_exists( 'EDD_Wish_Lists' ) ) {
			$edd_wish_lists_activation = new EDD_Wish_Lists_Activation( plugin_dir_path( __FILE__ ), basename( __FILE__ ) );
			$edd_wish_lists_activation = $edd_wish_lists_activation->run();
		}

    } else {
        return EDD_Favorites::get_instance();
    }
}
add_action( 'plugins_loaded', 'edd_favorites_load', apply_filters( 'edd_favorites_action_priority', 10 ) );

endif;