<?php
// Exit if accessed directly
if( !defined('ABSPATH') ) {
	exit;
}


/**
 * Helpers functions
 *
 * @author        Alex Kovalev <alex.kovalevv@gmail.com>, Github: https://github.com/alexkovalevv
 * @since         1.0.0
 * @package       clearfy
 * @copyright (c) 2018, Webcraftic Ltd
 *
 */
class WbcrFactoryClearfy246_Helpers {

	/**
	 * Recursive sanitation for an array
	 *
	 * @param $array
	 *
	 * @return mixed
	 * @since 2.0.5
	 *
	 */
	public static function recursiveSanitizeArray($array, $function)
	{
		foreach($array as $key => &$value) {
			if( is_array($value) ) {
				$value = self::recursiveSanitizeArray($value, $function);
			} else {
				if( function_exists($function) ) {
					$value = $function($value);
				}
			}
		}

		return $array;
	}

	/**
	 * Is permalink enabled?
	 *
	 * @return bool
	 * @since 1.0.0
	 * @global WP_Rewrite $wp_rewrite
	 */
	public static function isPermalink()
	{
		global $wp_rewrite;

		if( !isset($wp_rewrite) || !is_object($wp_rewrite) || !$wp_rewrite->using_permalinks() ) {
			return false;
		}

		return true;
	}

	/**
	 * Display 404 page to bump bots and bad guys
	 *
	 * @param bool $simple If true force displaying basic 404 page
	 */
	public static function setError404()
	{
		global $wp_query;

		if( function_exists('status_header') ) {
			status_header('404');
			nocache_headers();
		}

		if( $wp_query && is_object($wp_query) ) {
			$wp_query->set_404();
			get_template_part(404);
		} else {
			global $pagenow;

			$pagenow = 'index.php';

			if( !defined('WP_USE_THEMES') ) {
				define('WP_USE_THEMES', true);
			}

			wp();

			$_SERVER['REQUEST_URI'] = self::userTrailingslashit('/hmwp_404');

			require_once(ABSPATH . WPINC . '/template-loader.php');
		}

		exit();
	}

	public static function useTrailingSlashes()
	{
		return ('/' === substr(get_option('permalink_structure'), -1, 1));
	}

	public static function userTrailingslashit($string)
	{
		return self::useTrailingSlashes() ? trailingslashit($string) : untrailingslashit($string);
	}

	/**
	 * Returns true if a needle can be found in a haystack
	 *
	 * @param string $string
	 * @param string $find
	 * @param bool $case_sensitive
	 *
	 * @return bool
	 */
	public static function strContains($string, $find, $case_sensitive = true)
	{
		if( empty($string) || empty($find) ) {
			return false;
		}

		$pos = $case_sensitive ? strpos($string, $find) : stripos($string, $find);

		return !($pos === false);
	}

	/**
	 * Tests if a text starts with an given string.
	 *
	 * @param string $string
	 * @param string $find
	 * @param bool $case_sensitive
	 *
	 * @return bool
	 */
	public static function strStartsWith($string, $find, $case_sensitive = true)
	{
		if( $case_sensitive ) {
			return strpos($string, $find) === 0;
		}

		return stripos($string, $find) === 0;
	}

	/**
	 * Tests if a text ends with an given string.
	 *
	 * @param      $string
	 * @param      $find
	 * @param bool $case_sensitive
	 *
	 * @return bool
	 */
	public static function strEndsWith($string, $find, $case_sensitive = true)
	{
		$expected_position = strlen($string) - strlen($find);

		if( $case_sensitive ) {
			return strrpos($string, $find, 0) === $expected_position;
		}

		return strripos($string, $find, 0) === $expected_position;
	}

	public static function arrayMergeInsert(array $arr, array $inserted, $position = 'bottom', $key = null)
	{
		if( $position == 'top' ) {
			return array_merge($inserted, $arr);
		}
		$key_position = ($key === null) ? false : array_search($key, array_keys($arr));
		if( $key_position === false or ($position != 'before' and $position != 'after') ) {
			return array_merge($arr, $inserted);
		}
		if( $position == 'after' ) {
			$key_position++;
		}

		return array_merge(array_slice($arr, 0, $key_position, true), $inserted, array_slice($arr, $key_position, null, true));
	}

	public static function maybeGetPostJson($name)
	{
		if( isset($_POST[$name]) and is_string($_POST[$name]) ) {
			$result = json_decode(stripslashes($_POST[$name]), true);
			if( !is_array($result) ) {
				$result = [];
			}

			return $result;
		} else {
			return [];
		}
	}

	public static function getEscapeJson(array $data)
	{
		return htmlspecialchars(json_encode($data), ENT_QUOTES, 'UTF-8');
	}

	/**
	 * Replace url for multisite
	 *
	 * @param $string
	 *
	 * @return string
	 */
	public static function replaceMsUrl($string)
	{
		if( is_multisite() && BLOG_ID_CURRENT_SITE != get_current_blog_id() ) {
			return str_replace(get_site_url(BLOG_ID_CURRENT_SITE), get_site_url(get_current_blog_id()), $string);
		}

		return $string;
	}

	/*
	 * Flushes as many page cache plugin's caches as possible.
	 *
	 * @return void
	 */
	public static function flushPageCache()
	{
		if( function_exists('wp_cache_clear_cache') ) {
			if( is_multisite() ) {
				$blog_id = get_current_blog_id();
				wp_cache_clear_cache($blog_id);
			} else {
				wp_cache_clear_cache();
			}
		} else if( has_action('cachify_flush_cache') ) {
			do_action('cachify_flush_cache');
		} else if( function_exists('w3tc_pgcache_flush') ) {
			w3tc_pgcache_flush();
		} else if( function_exists('wp_fast_cache_bulk_delete_all') ) {
			wp_fast_cache_bulk_delete_all();
		} else if( class_exists('WpFastestCache') ) {
			$wpfc = new WpFastestCache();
			$wpfc->deleteCache();
		} else if( class_exists('c_ws_plugin__qcache_purging_routines') ) {
			c_ws_plugin__qcache_purging_routines::purge_cache_dir(); // quick cache
		} else if( class_exists('zencache') ) {
			zencache::clear();
		} else if( class_exists('comet_cache') ) {
			comet_cache::clear();
		} else if( class_exists('WCL_Cache_Helpers') ) {
			WCL_Cache_Helpers::deleteCache();
		} else if( class_exists('WpeCommon') ) {
			// WPEngine cache purge/flush methods to call by default
			$wpe_methods = [
				'purge_varnish_cache',
			];

			// More agressive clear/flush/purge behind a filter
			if( apply_filters('wbcr/factory/flush_wpengine_aggressive', false) ) {
				$wpe_methods = array_merge($wpe_methods, ['purge_memcached', 'clear_maxcdn_cache']);
			}

			// Filtering the entire list of WpeCommon methods to be called (for advanced usage + easier testing)
			$wpe_methods = apply_filters('wbcr/factory/wpengine_methods', $wpe_methods);

			foreach($wpe_methods as $wpe_method) {
				if( method_exists('WpeCommon', $wpe_method) ) {
					WpeCommon::$wpe_method();
				}
			}
		} else if( function_exists('sg_cachepress_purge_cache') ) {
			sg_cachepress_purge_cache();
		} else if( file_exists(WP_CONTENT_DIR . '/wp-cache-config.php') && function_exists('prune_super_cache') ) {
			// fallback for WP-Super-Cache
			global $cache_path;
			if( is_multisite() ) {
				$blog_id = get_current_blog_id();
				prune_super_cache(get_supercache_dir($blog_id), true);
				prune_super_cache($cache_path . 'blogs/', true);
			} else {
				prune_super_cache($cache_path . 'supercache/', true);
				prune_super_cache($cache_path, true);
			}
		}
	}
}
