<?php
/**
 * @author      Elicus Technologies <hello@elicus.com>
 * @link        https://www.elicus.com/
 * @copyright   2021 Elicus Technologies Private Limited
 * @version     2.2.6
 */

defined('ABSPATH') or die('No script kiddies please!');

if ( ! class_exists( 'El_Testimonial_Extended_Update' ) ) {
	class El_Testimonial_Extended_Update {
		/**
	     * Plugin Name.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $plugin_name;

		/**
	     * Plugin Version.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $plugin_version;

		/**
	     * Metadata Url.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $metadata_url;

		/**
	     * Plugin Upgrade Transient.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $upgrade_transient;	

		/**
	     * Last checked update.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $last_checked;

		/**
	     * Last checked update option.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $last_checked_option;

		/**
	     * Plugin Basename.
	     *
	     * @since 	 2.2.6
	     * @access   private
	     * @var 	 string
	     */
		private $plugin_basename;

		/**
		 * Initialize the class and set its properties.
		 *
		 * @since    2.2.6
		 * @param    string    $plugin_name   	The name of this plugin.
		 * @param    string    $version  		The version of this plugin.
		 */
		public function __construct() {
			$this->plugin_name			= 'divi-testimonial-extended';
			$this->plugin_version		= ELICUS_TESTIMONIAL_VERSION;
			$this->plugin_basename		= ELICUS_TESTIMONIAL_BASENAME;
	        $this->metadata_url 		= 'http://cdn.elicus.com';
	        $this->upgrade_transient    = 'upgrade_divi_testimonial_extended';
	        $this->last_checked_option  = 'divi_testimonial_extended_last_checked';
	        $this->last_checked 		= get_option( $this->last_checked_option, 0 );

	       	add_action( 'upgrader_process_complete', array( $this, 'update_complete' ), 10, 2 );
			add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'check_update' ) );
			add_filter( 'plugins_api', array( $this, 'check_info' ), 10, 3 );
		}

		/**
		 * Check for updates.
		 *
		 * @since    1.0.0
		 */
		public function check_update( $transient ) {

			// trying to get from cache first, to disable cache comment 10,20,21,22,24
			$response = get_transient( $this->upgrade_transient );
			
			if ( ! $response && isset( $transient->response[$this->plugin_basename] ) ) {
				unset( $transient->response[$this->plugin_basename] );
				return $transient;
			}

			if ( ! $response && empty( $transient->checked ) ) {
	            return $transient;
	        }

			if ( current_user_can( 'update_plugins' ) && 
				( 
					( false === $response && ( ( time() - $this->last_checked ) > 43200 ) ) || 
				  	( false === $response && isset( $_REQUEST['force-check'] ) && $_REQUEST['force-check'] == '1' )
				)
			) {
				global $wp_version;
	     		$params	= array(
	                		'user-agent' => 'WordPress/' . $wp_version . ';' . get_bloginfo('url'),
	                       	'body'       => array(
	                            'action'	=> esc_attr( 'update' ),
	                            'slug'		=> esc_attr( $this->plugin_name ),
	                        	'blog'		=> get_bloginfo( 'url' ),
	                        )
	        			);
	            $request    = wp_safe_remote_post( $this->metadata_url, $params );
	          	
		 		if ( ! is_wp_error( $request ) && ! empty( $request['body'] ) ) {
		 			$response = json_decode( wp_remote_retrieve_body( $request ) );
					if ( version_compare( $this->plugin_version, $response->current_version, '<' ) ) {	
						set_transient( $this->upgrade_transient, $response, 43200 ); // 12 hours cache
					}
				}

				update_option( $this->last_checked_option, time() );
				$this->last_checked = time();
			}
		 
		 	
			if ( $response && current_user_can( 'update_plugins' ) ) {
				if ( version_compare( $this->plugin_version, $response->current_version, '<' ) ) {
					$metadata 			= unserialize( $response->update_metadata );
					$obj 				= new stdClass();
					$obj->name 			= $metadata->name;
					$obj->slug 			= $this->plugin_name;
					$obj->plugin 		= $this->plugin_basename;
					$obj->new_version 	= $metadata->version;
					$obj->tested 		= $metadata->tested;
					$obj->icons         = array(
	                    '1x' => 'https://diviextended.com/wp-content/uploads/2024/02/divi-extended-logo-green-1x.png',
	                    '2x' => 'https://diviextended.com/wp-content/uploads/2024/02/divi-extended-logo-green-2x.png',
	                );
					$obj->package 		= $metadata->download_url . '?slug=' . esc_attr( $this->plugin_name ) . '&blog_url=' . get_bloginfo( 'url' );
		           	
		           	$transient->response[$obj->plugin] = $obj;
				}
			}

	        return $transient;
		}

		/**
		 * Display metadata in popup.
		 *
		 * @since    1.0.0
		 */
		public function check_info( $res, $action, $args ) {
			
			// do nothing if this is not about getting plugin information
			if ( 'plugin_information' !== $action ) {
				return $res;
			}
		 
			// do nothing if it is not our plugin	
			if ( $this->plugin_name !== $args->slug ) {
				return $res;
			}
		 
			$response = get_transient( $this->upgrade_transient );
		 	
			if ( $response && current_user_can( 'update_plugins' ) ) {
				if ( version_compare( $this->plugin_version, $response->current_version, '<' ) ) {
					$metadata 					= unserialize( $response->update_metadata );
					$metadata->download_link 	= $metadata->download_url . '?slug=' . esc_attr( $this->plugin_name ) . '&blog_url=' . get_bloginfo( 'url' );
		        	return $metadata;
		        }
			}
		 
			return $res;
		}

		/**
		 * Delete transient of update completed
		 *
		 * @since    1.0.0
		 */
		public function update_complete( $upgrader_object, $options ) {

			if ( 'update' === $options['action'] && 'plugin' === $options['type'] ) {
				// just clean the cache when new plugin version is installed
				foreach( $options['plugins'] as $plugin ) {
	          		if ( $plugin === $this->plugin_basename ) {
						delete_transient( $this->upgrade_transient );
						update_option( $this->last_checked_option, time() );
						$this->last_checked = time();
					}
				}
			}
		
		}

	}
	new El_Testimonial_Extended_Update;
}