<?php
if (! defined('AVH_FRAMEWORK'))
	die('You are not allowed to call this page directly.');
if (! class_exists('AVH_Common')) {

	final class AVH_Common
	{

		/**
		 * Sends the email
		 *
		 */
		public static function sendMail ($to, $subject, $message, $footer = array())
		{
			$message = array_merge($message, $footer);
			$msg = '';
			foreach ($message as $line) {
				$msg .= $line . "\r\n";
			}
			wp_mail($to, $subject, $msg);
			return;
		}

		/**
		 * Returns the wordpress version
		 * Note: 2.7.x will return 2.7
		 *
		 * @return float
		 */
		public static function getWordpressVersion ()
		{
			static $_version = null;
			if (! isset($_version)) {
				// Include WordPress version
				require (ABSPATH . WPINC . '/version.php');
				$_version = (float) $wp_version;
			}
			return $_version;
		}

		/**
		 * Determines if the current version of PHP is greater then the supplied value
		 *
		 * @param	string
		 * @return	bool
		 */
		public static function isPHP ($version = '5.0.0')
		{
			static $_is_php = null;
			$version = (string) $version;
			if (! isset($_is_php[$version])) {
				$_is_php[$version] = (version_compare(PHP_VERSION, $version) < 0) ? false : true;
			}
			return $_is_php[$version];
		}

		/**
		 * Get the base directory of a directory structure
		 *
		 * @param string $directory
		 * @return string
		 *
		 */
		public static function getBaseDirectory ($directory)
		{
			//get public directory structure eg "/top/second/third"
			$public_directory = dirname($directory);
			//place each directory into array
			$directory_array = explode('/', $public_directory);
			//get highest or top level in array of directory strings
			$public_base = max($directory_array);
			return $public_base;
		}

		/**
		 * This function will take an IP address or IP number in almost any format (that I can think of) and will return it's decimal unsigned equivalent, as a string.
		 * Kind				=> Input				=>  Return		=>  long2ip(Return)
		 * DottedQuadDec	=> 192.168.255.109		=>  3232300909	=>  192.168.255.109
		 * PosIntStr		=> 3232300909			=>  3232300909	=>  192.168.255.109
		 * NegIntStr		=> -1062666387			=>  3232300909	=>  192.168.255.109
		 * PosInt			=> 3232300909			=>  3232300909	=>  192.168.255.109
		 * NegInt			=> -1062666387			=>  3232300909	=>  192.168.255.109
		 * DottedQuadHex	=> 0xc0.0xA8.0xFF.0x6D	=>           0	=>          0.0.0.0
		 * DottedQuadOct	=> 0300.0250.0377.0155	=>           0	=>          0.0.0.0
		 * HexIntStr		=> 0xC0A8FF6D			=>           0	=>          0.0.0.0
		 * HexInt			=> 3232300909 			=>  3232300909	=>  192.168.255.109
		 *
		 * @param string/numeric $ip
		 */
		public static function getIp2long ($ip)
		{
			if (is_numeric($ip)) {
				$return = sprintf("%u", floatval($ip));
			} else {
				$return = sprintf("%u", floatval(ip2long($ip)));
			}
			return $return;
		}
	}
}