<?php
/**
 * @class ProcessRequestClass
 * @brief Implementation of a RequestAbstractClass for process request
 * @details
 */
class ProcessRequestClass extends RequestAbstractClass
{
	/*
	 * @brief Init a process request of type "run"
	*/
	private function initRun()
	{
		if ($this->requestData->getCmd() == '')
		{
			$this->requestData->setLastErrorMessage('No process command defined');
			return false;
		}

		if ($this->requestData->getWorkingPath() == '')
		{
			$this->requestData->setLastErrorMessage('No working path defined');
			return false;
		}

		if (!is_dir($this->requestData->getWorkingPath()))
		{
			if (!mkdir($this->requestData->getWorkingPath(),0777) || !is_dir($this->requestData->getWorkingPath()))
			{
				$this->requestData->setLastErrorMessage('Cannot create working dir');
				return false;
			}
		}

		return true;
	}

	/*
	 * @brief Init a process request of type "delete" or "info"
	*/
	private function initDeleteOrInfo()
	{
		if ($this->requestData->getId() == "")
		{
			$this->requestData->setLastErrorMessage('No process id defined');
			return false;
		}
		return true;
	}

	/*
	 * @brief Init a process request
	*/
	public function init()
	{
		if (!isset($this->requestData))
			return false;

		$this->requestData->setSuccess(false);
		$this->requestData->setLastErrorMessage('Cannot init process request');

		switch ($this->requestData->getType())
		{
			case ProcessTypeEnumClass::RUN :
				return $this->initRun();
			case ProcessTypeEnumClass::DELETE :
			case ProcessTypeEnumClass::INFO :
				return $this->initDeleteOrInfo();
		}

		return false;
	}

	/*
	 * @brief Update data from process info
	*/
	private function updateProcess($processInfo)
	{
		$this->requestData->setId($processInfo['id']);
		if ($processInfo['isrunning'])
			$this->requestData->setStatus(ProcessStatusEnumClass::RUNNING);
		else
		{
			if (isset($processInfo['iskilled']) && $processInfo['iskilled'])
				$this->requestData->setStatus(ProcessStatusEnumClass::KILLED);
			else if (!isset($processInfo['exitcode']) || ($processInfo['exitcode'] != 0))
				$this->requestData->setStatus(ProcessStatusEnumClass::ERROR);
			else
				$this->requestData->setStatus(ProcessStatusEnumClass::DONE);
			$this->requestData->setErrorCode($processInfo['exitcode']);
		}

		$this->requestData->setStart($processInfo['runningstart']);
	}

	/*
	 * @brief Run a process request
	*/
	public function run()
	{
		if (!isset($this->requestData))
			return false;

		$this->requestData->setSuccess(false);
		$this->requestData->setLastErrorMessage('Cannot run process request');

		//create the process manager
		$processMgr = new ProcessManagerClass($this->requestData->getManagerFilePath());
			
		switch ($this->requestData->getType())
		{
			case ProcessTypeEnumClass::RUN :
				//run process
				$result = $processMgr->runProcess(
				$this->requestData->getCmd(),
				$this->requestData->getWorkingPath(),
				$this->requestData->getEnvVars(),
				$this->requestData->getPostCmd(),
				$this->requestData->getBatchEnable());
				if ($result['success'])
					$this->updateProcess($result['result']);
				break;
			case ProcessTypeEnumClass::DELETE :
				//delete process
				$result = $processMgr->deleteProcess($this->requestData->getId());
				if ($result['success'])
					$result = $result['result'];
				break;
			case ProcessTypeEnumClass::INFO :
				//get process info
				$result = $processMgr->getProcessInfo($this->requestData->getId(),true);
				if ($result['success'])
					$this->updateProcess($result['result']);
				break;
			case ProcessTypeEnumClass::KILL :
				$result = $processMgr->killProcess($this->requestData->getId());
				if ($result['success'])
					$result = $result['result'];
				break;
			default :
				$this->requestData->setLastErrorMessage("Process method not implemented");
				return false;
		}

		$this->requestData->setSuccess($result['success']);

		if (!$result['success'])
			$this->requestData->setLastErrorMessage($result['message']);

		return ($result['success']);
	}
}
?>