<?php
/**
 * Thermal Zone sensor class
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PSI_Sensor
 * @author    Michael Cramer <BigMichi1@users.sourceforge.net>
 * @copyright 2009 phpSysInfo
 * @license   http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @version   SVN: $Id: class.ohm.inc.php 661 2012-08-27 11:26:39Z namiltd $
 * @link      http://phpsysinfo.sourceforge.net
 */
 /**
 * getting information from Thermal Zone WMI class
 *
 * @category  PHP
 * @package   PSI_Sensor
 * @author    Michael Cramer <BigMichi1@users.sourceforge.net>
 * @copyright 2009 phpSysInfo
 * @license   http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @version   Release: 3.0
 * @link      http://phpsysinfo.sourceforge.net
 */
class ThermalZone extends Sensors
{
	/**
	 * holds the COM object that we pull all the WMI data from
	 *
	 * @var Object
	 */
	private $_buf = array();

	/**
	 * fill the private content var
	 */
	public function __construct()
	{
		parent::__construct();
		if (PSI_OS == 'WINNT') {
			$_wmi = null;
			// don't set this params for local connection, it will not work
			$strHostname = '';
			$strUser = '';
			$strPassword = '';
			try {
				// initialize the wmi object
				$objLocator = new COM('WbemScripting.SWbemLocator');
				if ($strHostname == "") {
					$_wmi = $objLocator->ConnectServer($strHostname, 'root\WMI');
				} else {
					$_wmi = $objLocator->ConnectServer($strHostname, 'root\WMI', $strHostname.'\\'.$strUser, $strPassword);
				}
			} catch (Exception $e) {
				$this->error->addError("WMI connect error", "PhpSysInfo can not connect to the WMI interface for ThermalZone data.");
			}
			if ($_wmi) {
				$this->_buf = CommonFunctions::getWMI($_wmi, 'MSAcpi_ThermalZoneTemperature', array('InstanceName', 'CriticalTripPoint', 'CurrentTemperature'));
			}
		}
	}

	/**
	 * get temperature information
	 *
	 * @return void
	 */
	private function _temperature()
	{
		if (PSI_OS == 'WINNT') {
			if ($this->_buf) foreach ($this->_buf as $buffer) {
				if (isset($buffer['CurrentTemperature']) && (($value = ($buffer['CurrentTemperature'] - 2732)/10) > -100)) {
					$dev = new SensorDevice();
					if (isset($buffer['InstanceName']) && preg_match("/([^\\\\ ]+)$/", $buffer['InstanceName'], $outbuf)) {
						$dev->setName('ThermalZone '.$outbuf[1]);
					} else {
						$dev->setName('ThermalZone THM0_0');
					}
					$dev->setValue($value);
					if (isset($buffer['CriticalTripPoint']) && (($maxvalue = ($buffer['CriticalTripPoint'] - 2732)/10) > 0)) {
						$dev->setMax($maxvalue);
					}
					$this->mbinfo->setMbTemp($dev);
				}
			}
		} else {
			$notwas = true;
			foreach (glob('/sys/class/thermal/thermal_zone*/') as $thermalzone) {
				$thermalzonetemp = $thermalzone.'temp';
				$temp = null;
				if (CommonFunctions::rfts($thermalzonetemp, $temp, 0, 4096, false) && !is_null($temp) && (trim($temp) != "")) {
					if ($temp >= 1000) {
						$temp = $temp / 1000;
					}

					if ($temp > -40) {
						$dev = new SensorDevice();
						$dev->setValue($temp);

						$temp_type = null;
						if (CommonFunctions::rfts($thermalzone.'type', $temp_type, 0, 4096, false) && !is_null($temp_type) && (trim($temp_type) != "")) {
							$dev->setName($temp_type);
						} else {
							$dev->setName("ThermalZone");
						}

						$temp_max = null;
						if (CommonFunctions::rfts($thermalzone.'trip_point_0_temp', $temp_max, 0, 4096, false) && !is_null($temp_max) && (trim($temp_max) != "") && ($temp_max > 0)) {
							if ($temp_max >= 1000) {
								$temp_max = $temp_max / 1000;
							}
							$dev->setMax($temp_max);
						}

						$notwas = false;
						$this->mbinfo->setMbTemp($dev);
					}
				}
			}
			if ($notwas) {
				foreach (glob('/proc/acpi/thermal_zone/TH*/temperature') as $thermalzone) {
					$temp = null;
					if (CommonFunctions::rfts($thermalzone, $temp, 1, 4096, false) && !is_null($temp) && (trim($temp) != "")) {
						$dev = new SensorDevice();
						if (preg_match("/^\/proc\/acpi\/thermal_zone\/(.+)\/temperature$/", $thermalzone, $name)) {
							$dev->setName("ThermalZone ".$name[1]);
						} else {
							$dev->setName("ThermalZone");
						}
						$dev->setValue(trim(substr($temp, 23, 4)));
						$this->mbinfo->setMbTemp($dev);
					}
				}
			}
		}
	}

	/**
	 * get the information
	 *
	 * @see PSI_Interface_Sensor::build()
	 *
	 * @return Void
	 */
	public function build()
	{
		$this->_temperature();
	}
}