<?php
// @codingStandardsIgnoreFile
/**
 * Conditional utilities.
 *
 * Copyright: © 2009-2011
 * {@link http://websharks-inc.com/ WebSharks, Inc.}
 * (coded in the USA)
 *
 * Released under the terms of the GNU General Public License.
 * You should have received a copy of the GNU General Public License,
 * along with this software. In the main directory, see: /licensing/
 * If not, see: {@link http://www.gnu.org/licenses/}.
 *
 * @package s2Member\Utilities
 * @since 3.5
 */
if(!defined('WPINC')) // MUST have WordPress.
	exit('Do not access this file directly.');

if(!class_exists('c_ws_plugin__s2member_utils_conds'))
{
	/**
	 * Conditional utilities.
	 *
	 * @package s2Member\Utilities
	 * @since 3.5
	 */
	class c_ws_plugin__s2member_utils_conds
	{
		/**
		 * Determines whether or not s2Member Pro is installed.
		 *
		 * @package s2Member\Utilities
		 * @since 110720
		 *
		 * @return bool True if s2Member Pro is installed, else false.
		 */
		public static function pro_is_installed()
		{
			return (defined('WS_PLUGIN__S2MEMBER_PRO_VERSION') && did_action('ws_plugin__s2member_pro_loaded'));
		}

		/**
		 * Determines whether or not bbPress is installed.
		 *
		 * @package s2Member\Utilities
		 * @since 140807
		 *
		 * @param bool $query_active_plugins Optional. If true, this conditional will query active plugins too.
		 *    Defaults to true if {@link s2Member\WS_PLUGIN__S2MEMBER_ONLY} is true, else false.
		 *
		 * @return bool True if bbPress is installed, else false.
		 */
		public static function bbp_is_installed($query_active_plugins = NULL)
		{
			if(function_exists('bbpress'))
				return TRUE; // Quickest/easiest way to determine.

			$s2o = (defined('WS_PLUGIN__S2MEMBER_ONLY') && WS_PLUGIN__S2MEMBER_ONLY) ? TRUE : FALSE;

			if(($query_active_plugins = (!isset($query_active_plugins) && $s2o) ? TRUE : $query_active_plugins))
			{
				$bbpress = 'bbpress/bbpress.php'; // bbPress.

				$active_plugins = (is_multisite()) ? wp_get_active_network_plugins() : array();
				$active_plugins = array_unique(array_merge($active_plugins, wp_get_active_and_valid_plugins()));

				foreach($active_plugins as $active_plugin) // Search.
					if(plugin_basename($active_plugin) === $bbpress)
						return TRUE; // bbPress active.
			}
			return FALSE; // Default return false.
		}

		/**
		 * Determines whether or not BuddyPress is installed.
		 *
		 * @package s2Member\Utilities
		 * @since 110720
		 *
		 * @param bool $query_active_plugins Optional. If true, this conditional will query active plugins too.
		 *    Defaults to true if {@link s2Member\WS_PLUGIN__S2MEMBER_ONLY} is true, else false.
		 *
		 * @return bool True if BuddyPress is installed, else false.
		 */
		public static function bp_is_installed($query_active_plugins = NULL)
		{
			if(defined('BP_VERSION') && did_action('bp_core_loaded'))
				return TRUE; // Quickest/easiest way to determine.

			$s2o = (defined('WS_PLUGIN__S2MEMBER_ONLY') && WS_PLUGIN__S2MEMBER_ONLY) ? TRUE : FALSE;

			if(($query_active_plugins = (!isset($query_active_plugins) && $s2o) ? TRUE : $query_active_plugins))
			{
				$buddypress = 'buddypress/bp-loader.php'; // BuddyPress.

				$active_plugins = (is_multisite()) ? wp_get_active_network_plugins() : array();
				$active_plugins = array_unique(array_merge($active_plugins, wp_get_active_and_valid_plugins()));

				foreach($active_plugins as $active_plugin) // Search.
					if(plugin_basename($active_plugin) === $buddypress)
						return TRUE; // BuddyPress active.
			}
			return FALSE; // Default return false.
		}

		/**
		 * Determines whether or not this is a Multisite Farm;
		 * *( i.e., if ``MULTISITE_FARM == true`` inside `/wp-config.php` )*.
		 *
		 * With s2Member, this option may also indicate a Multisite Blog Farm.
		 * ``$GLOBALS['WS_PLUGIN__']['s2member']['o']['mms_registration_file'] === 'wp-signup'``.
		 *
		 * @package s2Member\Utilities
		 * @since 3.5
		 *
		 * @return bool True if this is a Multisite Farm, else false.
		 */
		public static function is_multisite_farm()
		{
			return is_multisite()
			       && ((is_main_site() && $GLOBALS['WS_PLUGIN__']['s2member']['o']['mms_registration_file'] === 'wp-signup')
			           || (defined('MULTISITE_FARM') && MULTISITE_FARM));
		}

		/**
		 * Checks if a Post is in a child Category.
		 *
		 * @package s2Member\Utilities
		 * @since 3.5
		 *
		 * @param array      $cats An array of Category IDs.
		 * @param int|string $post_id A numeric WordPress Post ID.
		 *
		 * @return bool True if the Post is inside a desendant of at least one of the specified Categories; else false.
		 */
		public static function in_descendant_category($cats = array(), $post_id = '')
		{
			foreach((array)$cats as $cat)
			{
				$descendants = get_term_children((int)$cat, 'category');
				if($descendants && in_category($descendants, $post_id))
					return TRUE;
			}
			return FALSE; // Default return false.
		}

		/**
		 * Checks to see if a URL/URI leads to the site root.
		 *
		 * @package s2Member\Utilities
		 * @since 3.5
		 *
		 * @param string $url_uri Either a full URL, or a partial URI to test.
		 *
		 * @return bool True if the URL or URI leads to the site root, else false.
		 */
		public static function is_site_root($url_uri = '')
		{
			if(is_array($parse = c_ws_plugin__s2member_utils_urls::parse_url($url_uri)))
			{
				$ci             = $GLOBALS['WS_PLUGIN__']['s2member']['o']['ruris_case_sensitive'] ? '' : 'i';
				$parse['path']  = !empty($parse['path']) ? (strpos($parse['path'], '/') === 0 ? $parse['path'] : '/'.$parse['path']) : '/';
				$parse['query'] = !empty($parse['query']) ? $parse['query'] : ''; // Has a query string?

				if(empty($parse['host']) || strcasecmp($parse['host'], c_ws_plugin__s2member_utils_urls::parse_url(home_url(), PHP_URL_HOST)) === 0)
					if($parse['path'] === '/' || preg_match('/^'.preg_quote(rtrim($parse['path'], '/'), '/').'$/'.$ci, rtrim(c_ws_plugin__s2member_utils_urls::parse_url(home_url(), PHP_URL_PATH), '/')))
						if(get_option('permalink_structure') || (empty($_REQUEST['post_id']) && empty($_REQUEST['page_id']) && empty($_REQUEST['p']) && empty($_REQUEST['s'])))
							return TRUE;

				if(empty($parse['host']) || strcasecmp($parse['host'], c_ws_plugin__s2member_utils_urls::parse_url(site_url(), PHP_URL_HOST)) === 0)
					if($parse['path'] === '/' || preg_match('/^'.preg_quote(rtrim($parse['path'], '/'), '/').'$/'.$ci, rtrim(c_ws_plugin__s2member_utils_urls::parse_url(site_url(), PHP_URL_PATH), '/')))
						if(get_option('permalink_structure') || (empty($_REQUEST['post_id']) && empty($_REQUEST['page_id']) && empty($_REQUEST['p']) && empty($_REQUEST['s'])))
							return TRUE;
			}
			return FALSE; // Default return false.
		}

		/**
		 * Checks to see if we're in a localhost environment.
		 *
		 * @package s2Member\Utilities
		 * @since 111101
		 *
		 * @return bool True if we're in a localhost environment, else false.
		 */
		public static function is_localhost()
		{
			if((defined('LOCALHOST') && LOCALHOST)
			   || stripos($_SERVER['HTTP_HOST'], 'localhost') !== FALSE
			   || strpos($_SERVER['HTTP_HOST'], '127.0.0.1') !== FALSE
			) return TRUE;

			return FALSE; // Default return false.
		}

		/**
		 * Checks to see if we're using Amazon S3.
		 *
		 * @package s2Member\Utilities
		 * @since 110926
		 *
		 * @return bool True if using Amazon S3, else false.
		 */
		public static function using_amazon_s3_storage()
		{
			foreach($GLOBALS['WS_PLUGIN__']['s2member']['o'] as $option => $option_value)
				if(preg_match('/^amazon_s3_files_/', $option) && ($option = preg_replace('/^amazon_s3_files_/', '', $option)))
					$s3c[$option] = $option_value;

			if(!empty($s3c['bucket']) && !empty($s3c['access_key']) && !empty($s3c['secret_key']))
				return TRUE;

			return FALSE; // Default return false.
		}

		/**
		 * Checks to see if we're using Amazon CloudFront.
		 *
		 * @package s2Member\Utilities
		 * @since 110926
		 *
		 * @return bool True if using Amazon CloudFront, else false.
		 */
		public static function using_amazon_cf_storage()
		{
			foreach($GLOBALS['WS_PLUGIN__']['s2member']['o'] as $option => $option_value)
				if(preg_match('/^amazon_s3_files_/', $option) && ($option = preg_replace('/^amazon_s3_files_/', '', $option)))
					$s3c[$option] = $option_value;

			foreach($GLOBALS['WS_PLUGIN__']['s2member']['o'] as $option => $option_value)
				if(preg_match('/^amazon_cf_files_/', $option) && ($option = preg_replace('/^amazon_cf_files_/', '', $option)))
					$cfc[$option] = $option_value;

			if(!empty($s3c['bucket']) && !empty($s3c['access_key']) && !empty($s3c['secret_key']))
				if(!empty($cfc['private_key']) && !empty($cfc['private_key_id']) && !empty($cfc['distros_access_id'])
				   && !empty($cfc['distros_s3_access_id']) && !empty($cfc['distro_downloads_id']) && !empty($cfc['distro_downloads_dname'])
				   && !empty($cfc['distro_streaming_id']) && !empty($cfc['distro_streaming_dname'])
				) return TRUE;

			return FALSE; // Default return false.
		}
	}
}