<?php

class Bridge {
	private $inDB = false;
	public $id;
	public $name;
	public $ctrlip = "0.0.0.0";
	public $basemac = "00:00:00:00:00:00";

	private function fromRow($row) {
		$retval = new Bridge();
		if ($row) {
			$retval->inDB = true;
			$retval->id =		(int)$row['id'];
			$retval->name =		(string)$row['name'];
			$retval->ctrlip =	(string)$row['ctrlip'];
			$retval->basemac =	(string)$row['basemac'];
		}
		return $retval;
	}

	private function toSql() {
		return "name = '".mysql_real_escape_string($this->name)."',
			ctrlip = INET_ATON('".mysql_real_escape_string($this->ctrlip)."'),
			basemac = '".mysql_real_escape_string($this->basemac)."'";
	}

	function load($id) {
		$dbh = Database::getInstance();
		$sql = "SELECT id, name, INET_NTOA(ctrlip) AS ctrlip, basemac
			FROM bridge
			WHERE id = '{$id}'";

		$dbh->query($sql);
		return self::fromRow($dbh->fetch_assoc());
	}

	function save() {
		$dbh = Database::getInstance();

		if ($this->inDB) {
			$sql = "UPDATE bridge SET ".$this->toSql()."
				WHERE id = '{$this->id}'";
			$dbh->query($sql);

		} else {
			$sql = "INSERT bridge SET ".$this->toSql();

			$dbh->query($sql);
			$this->iNDB = true;
			$this->id = $dbh->insert_id();
		}
	}

	function delete($id) {
		$dbh = Database::getInstance();
		$sql = "DELETE FROM bridge
			WHERE id = '{$id}'";

		$dbh->query($sql);

		$trunks = Trunk::getAll($id);
		foreach ($trunks as $trunk)
			Trunk::delete($trunk->id);
	}

	function getAll() {
		$dbh = Database::getInstance();

		$sql = "SELECT id, name, INET_NTOA(ctrlip) AS ctrlip, basemac
			FROM bridge
			ORDER BY name";
		$dbh->query($sql);

		$retval = array();
		while ($row = $dbh->fetch_assoc())
			$retval[$row['id']] = self::fromRow($row);

		return $retval;
	}

	private function inc_mac($mac) {
		$parts = explode(':', $mac);
		foreach ($parts as $num => $part)
			$parts[$num] = hexdec($part);

		$inc = true;
		for ($i = 5; $i >= 0; $i--) {
			if ($inc)
				$parts[$i]++;

			if ($parts[$i] >= 0x100) {
				$parts[$i] = 0x00;
				$inc = true;
			} else {
				$inc = false;
			}
		}

		foreach ($parts as $num => $part) {
			$parts[$num] = strtoupper(dechex($part));

			if ($part < 0x10)
				$parts[$num] = "0".$parts[$num];
		}

		return implode(':', $parts);
	}

	function reorder_macs() {
		$mac = $this->basemac;

		$trunks = Trunk::getAll($this->id);
		foreach ($trunks as $trunk) {

			$vlans = Vlan::getAll($trunk->id);
			foreach ($vlans as $vlan) {
				$mac = self::inc_mac($mac);
				$vlan->mac = $mac;
				$vlan->save();
			}
		}
	}
}

?>