<?php
 
/*

Plugin Name:  ArvanCloud Purge
Description:  افزونه اختصاصی ابر آروان ( نسخه آزمایشی ) در این نسخه امکان حذف کش ها به صورت اتوماتیک وجود دارد
Version:      0.5
Author:       ArvanCloud
Author URI:   https://arvancloud.com
Contributors: arvancloud

*/

define('arcache_VERSION', '0.5');

define('arcache_PLUGIN_URL', plugin_dir_url( __FILE__ ));
define('arcache_PLUGIN_PATH', plugin_dir_path(__FILE__) );
define('arcache_PLUGIN_BASENAME', plugin_basename(__FILE__));


/* ArvanCloud Caching */

class arcache_API {

	var $arcache_endpoint 		  	= "https://www.arvancloud.com/api/v1/domains/purge-cache";
	var $arcache_methods 			= array();
	var $arcache_options 		    = array();
	var $arcache_url     			= '';
	var $arcache_suppress_debug 	= false;
	function __construct() {
		$this->arcache_options = get_option('arcache_options');
		isset($this->arcache_options['auto_purge']) || $this->arcache_options['auto_purge'] = false;
		if( empty($this->arcache_options['account']) ){
			$this->arcache_options['account'] = '';
			update_option('arcache_options', $this->arcache_options);
		}
		$this->build_api_calls();
		$this->wordpress_upload_dir = wp_upload_dir();
	}
	function build_api_calls(){
			$tkn 		= isset($this->arcache_options['token']) ? $this->arcache_options['token'] : null;
			$email	= isset($this->arcache_options['email']) ? $this->arcache_options['email'] : null;
			$site	= isset($this->arcache_options['site']) ? $this->arcache_options['site'] : null;
			$z 			= isset($this->arcache_options['account']) ? $this->arcache_options['account'] : null;
			$this->api_methods = array(
				"purge_all"		=>  array(
					'cmd' 		=> 'purge-all',
					'key' 	=> $tkn,
					'user' => $email,
					'domain' => $z,
					'site' => $site
				),
				"purge_url"		=>  array(
					'cmd' 		=> 'purge-files',
					'key' 	=> $tkn,
					'user' => $email,
					'domain' 		=> $z,
					'site' => $site
				)
			);
	}
	function return_json_success($data='') {
		print json_encode( array("success" => 'true', "data" => $data) );
	}
	function return_json_error($error='') {
		print json_encode( array("success" => 'false', 'error' => array("message" => $error)) );
	}

	function make_api_request($api_method, $extra_post_variables = null){
		$headers = '';

		if( $this->arcache_options['token'] == '' || $this->arcache_options['email'] == '' || $this->arcache_options['account'] == ''){
			arcache_transaction_logging('Purge call failed due to missing config options: email=' . $this->arcache_options['email'] . ' & token=' . substr($this->arcache_options['token'], 0, 10) . '[...]' . ' & domain=' . ( isset($this->arcache_options['account']) ? $this->arcache_options['account'] : '')  );
			return;
		}

		if( is_array($extra_post_variables) ){
			$post_variables =  array_merge( $this->api_methods[$api_method], $extra_post_variables );
		}
		else{
			$post_variables = $this->api_methods[$api_method];
		}

		if( isset($this->arcache_options['console_calls']) && !$this->arcache_suppress_debug ){
			arcache_transaction_logging("\n" . "api url: " . $this->arcache_endpoint . "\n" . "api post args: " . print_r($post_variables, true) . "\n", 'print_debug');
		}

		$results = wp_remote_post($this->arcache_endpoint, array( 'headers' => $headers, 'body' => $post_variables) );

		if( isset($this->arcache_options['console_details']) && !$this->arcache_suppress_debug ){
			print_r($results);
		}

		if( is_wp_error( $results ) ){
			arcache_transaction_logging(print_r($results->get_error_message(), true), 'Wordpress Error');
		}

		if($results['response']['code'] != '200'){
			arcache_transaction_logging(print_r($results, true), 'error');
		}

		return json_decode($results['body']);
	}

	function purge_entire_cache(){
		$results = $this->make_api_request('purge_all');
		if( $results->result == 'success' ){
			arcache_transaction_logging("Purged Entire Cache for domain: " . $this->arcache_options['account'] . " | purge timestamp: " . $results->response->fpurge_ts . " | results: " . $results->result . " | msg: " . $results->msg . " | attributes: " . print_r($results->attributes, true) );
			print($results->result);
		}
		else{
			arcache_transaction_logging("Purge Entire Cache for domain: " . $this->arcache_options['account'] . " Error: " . $results->msg, 'error');
			print($results->msg);
		}
		die();
	}

	function purge_url($url){
		$this->purge_url_after_post_save($url, true);
	}

	function purge_url_after_post_save($url, $ajax=false){
		$results = $this->make_api_request('purge_url', array('url' => $url));
		if($ajax){$auto="Manual";}
		else{$auto="Automatic";}
		
		if($ajax){die();}
	}

	function get_wordpress_domain(){
		$domain = preg_replace('/http:\/\//', '', get_home_url() );
		$domain = preg_replace('/www./', '', $domain  );
		return $domain;
	}


}
function arcache_admin_scripts_styles(){
	wp_register_script( 'arcache-scripts', arcache_PLUGIN_URL . 'lib/arcache.js' ) ;
	wp_register_style( 'arcache-style', arcache_PLUGIN_URL . 'lib/arcache.css' );

	wp_enqueue_script( 'arcache-scripts' );
	wp_enqueue_style( 'arcache-style' );
}
add_action('admin_init', 'arcache_admin_scripts_styles');

function arcache_add_menu_page(){
	function arcache_menu_page(){
		$options_page_url = arcache_PLUGIN_PATH . '/lib/arcache_options.php';
		if(file_exists($options_page_url)){
			include_once($options_page_url);
		}
	};
	add_submenu_page( 'options-general.php', 'ابــر آروان', 'ابــر آروان', 'switch_themes', 'arcache', 'arcache_menu_page' );
};
add_action( 'admin_menu', 'arcache_add_menu_page' );

function arcache_plugin_settings_link($links) {
  $settings_link = '<a href="options-general.php?page=arcache">تنظیمات</a>';
  array_unshift($links, $settings_link);
  return $links;
}
add_filter("plugin_action_links_" . arcache_PLUGIN_BASENAME, 'arcache_plugin_settings_link' );

function arcache_purge_after_save_post_hook( $post_id ){
  global $hook_running;
  remove_action('publish_post', 'arcache_purge_after_save_post_hook');
  if($hook_running)
    return;
  $hook_running = true;
  if( defined('DOING_SAVE') && DOING_SAVE || !$post_id )
    return;
  if ( !in_array(get_post_type( $post_id ), array('post', 'page', 'partners')) )
    return;
  $arcache = new arcache_API;
  if( $arcache->arcache_options['auto_purge'] ){
      $permalink = get_permalink( $post_id );

      if( is_multisite() ) :
        if( function_exists('domain_mapping_post_content') ) :
          global $wpdb;
          $orig_url = str_replace( "https", "http", get_original_url( 'siteurl' ) );
          $url = str_replace( "https", "http", domain_mapping_siteurl( 'NA' ) );
          if ( $url == 'NA' )
            return $permalink;
          $permalink = str_replace( $orig_url, $url, $permalin );
        endif;
      endif;

      $arcache->arcache_suppress_debug = true;
      $arcache->purge_url_after_post_save( $permalink );
      if( in_array(get_post_type( $post_id ), array('post')) ){

        $siteurl = site_url();
        if( is_multisite() ) :
          if( function_exists('domain_mapping_siteurl') ) :
            $siteurl = domain_mapping_siteurl( get_current_blog_id() );
          endif;
        endif;
        $arcache->purge_url_after_post_save( $siteurl );
      }
  }
  add_action('publish_post', 'arcache_purge_after_save_post_hook');
}
add_action('publish_post', 'arcache_purge_after_save_post_hook');

function arcache_entire_cache(){
	$arcache = new arcache_API;
	$arcache->purge_entire_cache();
}
add_action( 'wp_ajax_arcache_entire_cache', 'arcache_entire_cache' );

function arcache_purge_url(){
	$arcache = new arcache_API;
	$arcache->purge_url($_REQUEST['url']);
}
add_action( 'wp_ajax_arcache_purge_url', 'arcache_purge_url' );