<?php

require_once "HttpClient.class.php";

/**
 * This class switches the Ingrasys IpoMan 1200 outlets from PHP.
 *
 * The HttpClient class from Incutio is required:
 * http://scripts.incutio.com/httpclient/
 *
 * Be aware that we use plain HTTP, so the communication is not
 * encrypted. For security reasons you should not use this class
 * through a public access network.
 *
 * @version 1.1 (May 8, 2008)
 * @author Stefan Mensink <opensource@basemotive.nl>
 * @copyright Basemotive V.O.F.
 */
class IpoMan {
	private $ipaddress = null;
	private $username = null;
	private $password = null;
	private $immediateswitching = null;
	private $client = null;

	/**
	 * Constructs the IpoMan class
	 *
	 * @param string $ipaddress The IP-address (or hostname) for the IpoMan
	 * @param string $username The username to authenticate with
	 * @param string $password The username to authenticate with
	 * @param boolean $immediateswitching Whether or not we want to temporary set the on/off delays to 0 when switching an outlet
	 */
	public function __construct($ipaddress, $username, $password, $immediateswitching=false) {
		$this->ipaddress = $ipaddress;
		$this->username = $username;
		$this->password = $password;
		$this->immediateswitching = $immediateswitching;

		$this->client = new HttpClient($ipaddress);
		$this->client->setAuthorization($username, $password);
	}

	/**
	 * Turns an outlet off and on.
	 *
	 * @param integer $outlet The outlet number to switch, 0 is the first outlet, 11 is the last
	 * @param integer $delay The delay between switching off and on in seconds
	 */
	public function resetOutlet($outlet, $delay=1) {
		// Set outlet on/off delays to 0
		if ($this->immediateswitching) {
			$outletSettings = $this->getOutletSettings();

			if ($outlet < 2) $outletonid = "XAAAAAAABADL".chr(ord('A')+$outlet+14);
			else $outletonid = "XAAAAAAABADM".chr(ord('A')+$outlet-2);
			$outletoffid = "XAAAAAAABADL".chr(ord('A')+$outlet+2);

			if ($outletSettings[$outletonid]!="0" || $outletSettings[$outletoffid]!="0") {
				$tmpOutletSettings = $outletSettings;
				$tmpOutletSettings[$outletonid] = "0";
				$tmpOutletSettings[$outletoffid] = "0";
				$this->setOutletSettings($tmpOutletSettings);
				var_dump($tmpOutletSettings);

				$needRestoreOutletSettings = true;
			} else {
				$needRestoreOutletSettings = false;
			}
		}

		// Turn outlet off
		$callarray = array();
		for ($i=0; $i<12; $i++) {
			$outletid = "XAAAAAAABOEB".chr(ord('A')+$i);
			$callarray[$outletid] = ($outlet==$i ? "3" : "1");
		}
		$this->client->post('/PageControl.htm', $callarray);

		sleep($delay);

		// Turn outlet on
		$callarray = array();
		for ($i=0; $i<12; $i++) {
			$outletid = "XAAAAAAABOEB".chr(ord('A')+$i);
			$callarray[$outletid] = ($outlet==$i ? "2" : "1");
		}
		$this->client->post('/PageControl.htm', $callarray);

		// Restore default outlet settings
		if ($this->immediateswitching && $needRestoreOutletSettings) {
			$this->setOutletSettings($outletSettings);
		}
	}

	/**
	 * Turns an outlet on.
	 *
	 * @param integer $outlet The outlet number to switch, 0 is the first outlet, 11 is the last
	 */
	public function switchOn($outlet) {
		// Make sure we have something to do
		if ($this->getOutletStatus($outlet)=="1") return;

		// Set outlet on delay to 0
		if ($this->immediateswitching) {
			$outletSettings = $this->getOutletSettings();

			if ($outlet < 2) $outletonid = "XAAAAAAABADL".chr(ord('A')+$outlet+14);
			else $outletonid = "XAAAAAAABADM".chr(ord('A')+$outlet-2);

			if ($outletSettings[$outletonid]!="0") {
				$tmpOutletSettings = $outletSettings;
				$tmpOutletSettings[$outletonid] = "0";
				$this->setOutletSettings($tmpOutletSettings);
				$needRestoreOutletSettings = true;
			} else {
				$needRestoreOutletSettings = false;
			}
		}

		// Turn outlet on
		$callarray = array();
		for ($i=0; $i<12; $i++) {
			$outletid = "XAAAAAAABOEB".chr(ord('A')+$i);
			$callarray[$outletid] = ($outlet==$i ? "2" : "1");
		}
		$this->client->post('/PageControl.htm', $callarray);

		// Restore default outlet settings
		if ($this->immediateswitching && $needRestoreOutletSettings) {
			$this->setOutletSettings($outletSettings);
		}
	}

	/**
	 * Turns an outlet off.
	 *
	 * @param integer $outlet The outlet number to switch, 0 is the first outlet, 11 is the last
	 */
	public function switchOff($outlet) {
		// Make sure we have something to do
		if ($this->getOutletStatus($outlet)=="0") return;

		// Set outlet off delay to 0
		if ($this->immediateswitching) {
			$outletSettings = $this->getOutletSettings();

			$outletoffid = "XAAAAAAABADL".chr(ord('A')+$outlet+2);

			if ($outletSettings[$outletoffid]!="0") {
				$tmpOutletSettings = $outletSettings;
				$tmpOutletSettings[$outletoffid] = "0";
				$this->setOutletSettings($tmpOutletSettings);
				$needRestoreOutletSettings = true;
			} else {
				$needRestoreOutletSettings = false;
			}
		}

		// Turn outlet off
		$callarray = array();
		for ($i=0; $i<12; $i++) {
			$outletid = "XAAAAAAABOEB".chr(ord('A')+$i);
			$callarray[$outletid] = ($outlet==$i ? "3" : "1");
		}
		$this->client->post('/PageControl.htm', $callarray);

		// Restore default outlet settings
		if ($this->immediateswitching && $needRestoreOutletSettings) {
			$this->setOutletSettings($outletSettings);
		}
	}

	/**
	 * Retrieves the outlet status.
	 *
	 * @param integer $outlet The outlet number to retrieve the status for; if ommitted, all outlet statuses are returned
	 * @return array All outlet statuses, or an integer if a specific outlet was specified
	 */
	public function getOutletStatus($outlet='') {
		$result = array();

		$this->client->get("/Outlet.js");
		$content = $this->client->getContent();
		$content_split = explode("\n", $content);
		foreach ($content_split as $line) {
			if (strpos($line, "var  Power_status") !== false) {
				$pos1 = strpos($line, '(');
				$pos2 = strpos($line, ')');
				$arraypart = substr($line, $pos1+1, $pos2-$pos1-1);
				$outletstatusarray = explode(',', $arraypart);
				foreach ($outletstatusarray as $status) {
					$result[] = ($status=='"power on"'?1:0);
				}
			}
		}

		if ($outlet!='')
			return $result[$outlet];
		else
			return $result;
	}

	/**
	 * Retrieves the value for a form element from the PageControl html.
	 */
	private function getContentValue($content, $id) {
		$pos = strpos($content, $id);
		$pos2 = strpos($content, 'VALUE="', $pos)+7;
		$pos3 = strpos($content, '"', $pos2);
		$value = substr($content, $pos2, $pos3-$pos2);
		return $value;
	}

	/**
	 * Retrieves all the outlet settings from the IpoMan as an array, so we can post it
	 * again.
	 */
	private function getOutletSettings() {
		$result = $this->client->get("/PageControl.htm");
		$content = $this->client->getContent();

		$outletSettings = array();
		
		for ($i=0; $i<12; $i++) {
			// Outlet Name
			$outletid = "XAAAAAAABADJ".chr(ord('A')+$i+1);
			$outletSettings[$outletid] = $this->getContentValue($content, $outletid);
			// Outlet Location
			$outletid = "XAAAAAAABADK".chr(ord('A')+$i+1);
			$outletSettings[$outletid] = $this->getContentValue($content, $outletid);
			// Power on Delay (secs)
			if ($i < 2) $outletid = "XAAAAAAABADL".chr(ord('A')+$i+14);
			else $outletid = "XAAAAAAABADM".chr(ord('A')+$i-2);
			$outletSettings[$outletid] = $this->getContentValue($content, $outletid);
			// Power off Delay (secs)
			$outletid = "XAAAAAAABADL".chr(ord('A')+$i+2);
			$outletSettings[$outletid] = $this->getContentValue($content, $outletid);
			// Output current threshold
			$outletid = "XAAAAAAABADG".chr(ord('A')+$i+1);
			$outletSettings[$outletid] = $this->getContentValue($content, $outletid);
		}

		return $outletSettings;
	}

	/**
	 * Sets all the outlet settings to the values given in the array.
	 */
	private function setOutletSettings($outletSettings) {
		$this->client->post('/PageControl.htm', $outletSettings);
	}

	public function dump() {
		//$result = $this->client->get("/PagePDUStatus.htm");
		$result = $this->client->get("/OutletTableStatus.js");
		$content = $this->client->getContent();
		echo $content."\n\n";
	}

}

?>