<?php

/**
 * Procedure Manager
 * @author franzz
 */
class Procedure extends PhpObject
{
	//Constants
	const THUMB_MAX_SIZE = 100;
	const IMAGE_FOLDER = Databap::DOC_FOLDER;
	const IMAGE_FOLDER_TMP = Databap::DOC_TMP_FOLDER;
	const IMAGE_FOLDER_THUMB = Databap::DOC_THUMB_FOLDER;

	//Objects
	private $oMySql;

	//Procedure Elements
	private $iProcId;
	private $iUserId;
	private $sTitle;
	private $sDescription;
	private $dLed;
	private $asSteps; // [id_step]=>text
	private $asImages; // [id_step][id_image]=>array('name'=>file name, 'desc'=> description)

	function __construct($oMySql)
	{
		parent::__construct(__CLASS__, Settings::DEBUG);
		$this->oMySql = $oMySql;
		$this->iPrevProcId = 0;
		$this->setProcedureId(0);
		$this->sTitle = '';
		$this->sDescription = '';
		$this->dLed = '';
		$this->asSteps = array();
		$this->asImages = array();
	}

	public function getProcedureId()
	{
		return $this->iProcId;
	}

	public function getProcedureLed()
	{
		return $this->dLed;
	}

	public function setProcedureId($iProcId)
	{
		$this->iProcId = $iProcId;
	}

	public function inputForm($asPost)
	{
		//User
		$this->iUserId = $asPost['id_user'];

		//Titles
		$this->sTitle = isset($asPost['title'])?$asPost['title']:'';
		$this->sDescription = isset($asPost['description'])?$asPost['description']:'';

		//Steps
		$sStepPattern = '/c(?P<step_id>\d+)_step_text/u';
		$sImagePattern = '/c(?P<step_id>\d+)_(?P<image_id>\d+)_image_(?P<image_info>\w+)/u';
		foreach($asPost as $sFormId=>$sValue)
		{
			//Step Text
			preg_match($sStepPattern, $sFormId, $asMatches);
			if(isset($asMatches['step_id']))
			{
				$this->asSteps[$asMatches['step_id']] = $sValue;
			}
			else
			{
				preg_match($sImagePattern, $sFormId, $asMatches);
				if
				(
				isset($asMatches['step_id'], $asMatches['image_id'], $asMatches['image_info']) &&
				($asMatches['image_info'] == 'name' || $asMatches['image_info']== 'desc')
				)
				{
					$this->asImages[$asMatches['step_id']][$asMatches['image_id']][$asMatches['image_info']] = $sValue;
				}
			}
		}
	}

	private function isImageSaved($sFileName, $bInTemp=false)
	{
		$sPath = $bInTemp?self::IMAGE_FOLDER_TMP:self::IMAGE_FOLDER;
		return file_exists($sPath.$sFileName);
	}

	public function checkIntegrity()
	{
		$asErrors = array();

		//Check title
		if($this->sTitle=='') $asErrors['title'] = 'Un titre est n&eacute;cessaire';

		//Check steps
		if(count($this->asSteps)==0)
		{
			$asErrors['step'] = 'Au moins une &eacute;tape est n&eacute;cessaire';
		}
		else
		{
			foreach($this->asSteps as $iStepId=>$sText)
			{
				if($sText=='')
				{
					$asErrors['step_'.$iStepId] = 'Une &eacute;tape ne poss&egrave;de pas de texte';
				}
			}
		}

		//Check images
		foreach($this->asImages as $iStepId=>$asImages)
		{
			foreach($asImages as $iImageId=>$asFileInfo)
			{
				//file exists in temp or already stored
				if(!$this->isImageSaved($asFileInfo['name']) && !$this->isImageSaved($asFileInfo['name'], true))
				{
					$asErrors['image_'.$iStepId.'_'.$iImageId] = 'Une image n\'a pas &eacute;t&eacute; t&eacute;l&eacute;charg&eacute;e';
				}
				if($asFileInfo['desc']=='')
				{
					$asErrors['image_'.$iStepId.'_'.$iImageId] = 'Une image n\'a pas de nom (description)';
				}
			}
		}
		return $asErrors;
	}

	public function saveProcedure($iPrevProcId)
	{
		//Add new procedure
		$asData = array('title'=>$this->sTitle, 'description'=>$this->sDescription, MySqlManager::getId(Databap::USER_TABLE)=>$this->iUserId);
		$iDbProcId = $this->oMySql->insertRow(Databap::PROC_TABLE, $asData);

		//Add new steps
		$asStepData = $asImgData = array(MySqlManager::getId(Databap::PROC_TABLE)=>$iDbProcId);
		foreach($this->asSteps as $iStepId=>$sStepDesc)
		{
			$asStepData['description'] = $sStepDesc;
			$iDbStepId = $this->oMySql->insertRow(Databap::STEP_TABLE, $asStepData);

			//Add new images
			if(array_key_exists($iStepId, $this->asImages))
			{
				$asImgData[MySqlManager::getId(Databap::STEP_TABLE)] = $iDbStepId;
				foreach($this->asImages[$iStepId] as $asImageInfo)
				{
					$asImgData['description'] = $asImageInfo['desc'];
					$asImgData['file_name'] = $asImageInfo['name'];
					$iDbImageId = $this->oMySql->insertRow(Databap::IMG_TABLE, $asImgData);
					$this->saveImage($asImgData['file_name']);
				}
			}
		}

		//Add this procedure to the group
		$bCreation = ($iPrevProcId==0);
		//$this->oMySql->deleteRow(Databap::PROC_TABLE, $this->iPrevProcId);
		//$this->oMySql->updateRow(Databap::PROC_TABLE, $iPrevProcId, array('refer_id'=>$iDbProcId));
		$iReferId = $bCreation?$iDbProcId:$this->oMySql->selectValue(Databap::PROC_TABLE, 'refer_id', $iPrevProcId);
		$this->oMySql->updateRow(Databap::PROC_TABLE, $iDbProcId, array('refer_id'=>$iReferId));

		//Update new Procedure Id
		//$this->setProcedureId($iDbProcId);

		//Reload Procedure
		$this->loadProcedure($iDbProcId);

		//return creation or edition
		return $bCreation;
	}

	private function saveImage($sFileName)
	{
		if(!$this->isImageSaved($sFileName))
		{
			$sTempFilePath = self::IMAGE_FOLDER_TMP.$sFileName;
			$sFilePath = self::IMAGE_FOLDER.$sFileName;

			//Real Size Image
			if(!rename($sTempFilePath, $sFilePath))
			{
				$this->addError('Unmoveable file : '.$sTempFilePath);
			}

			//Thumbnail picture
			$asResult = ToolBox::createThumbnail($sFilePath, self::THUMB_MAX_SIZE, self::THUMB_MAX_SIZE, self::IMAGE_FOLDER_THUMB, false, Databap::$UPLOAD_IMG_EXTS, true);
			if($asResult['error']!='') $this->addError('Unable to create thumbnail : '.$asResult['out']. '('.$asResult['error'].')');
		}
	}

	public function loadProcedure($iProcId)
	{
		//Column names
		$sProcIdCol = MySqlManager::getId(Databap::PROC_TABLE);
		$sStepIdCol = MySqlManager::getId(Databap::STEP_TABLE);
		$sImageIdCol = MySqlManager::getId(Databap::IMG_TABLE);

		//Get last id available
		$this->setProcedureId($iProcId);
		$this->refreshProcId();
		$asInfo = array('from'=>Databap::PROC_TABLE, 'constraint'=>array($sProcIdCol=>$this->getProcedureId()));

		//Load procedure info
		$asResult = $this->oMySql->selectRow(Databap::PROC_TABLE, $asInfo['constraint']);
		$this->sTitle = $asResult['title'];
		$this->sDescription = $asResult['description'];
		$this->iUserId = $asResult[MySqlManager::getId(Databap::USER_TABLE)];
		$this->dLed = $asResult['led'];

		//Load steps info
		$asInfo['from'] = Databap::STEP_TABLE;
		$this->asSteps = $this->oMySql->selectRows($asInfo, true, $sStepIdCol);

		//Load images info
		$asInfo['from'] = Databap::IMG_TABLE;
		foreach($this->oMySql->selectRows($asInfo) as $asRow)
		{
			$this->asImages[$asRow[$sStepIdCol]][$asRow[$sImageIdCol]]['name'] = $asRow['file_name'];
			$this->asImages[$asRow[$sStepIdCol]][$asRow[$sImageIdCol]]['desc'] = $asRow['description'];
		}
	}

	public function getProcedure()
	{
		foreach($this->asSteps as $iStepId=>$asStep)
		{
			$this->asSteps[$iStepId]['formated_description'] = ToolBox::formatText($asStep['description']);
		}
		
		return array(	'proc_id'=>$this->iProcId,
						'id_user'=>$this->iUserId,
						'title'=>Databap::getDescriptionFormat($this->sTitle),
						'description'=>Databap::getDescriptionFormat($this->sDescription),
						'led'=>Databap::getDateFormat($this->dLed),
						'steps'=>$this->asSteps,
						'images'=>$this->asImages);
	}

	private function refreshProcId()
	{
		/*
		 $iReferId = $this->getProcedureId();
		do
		{
		$iProcId = $iReferId;
		$iReferId = $this->oMySql->selectValue(Databap::PROC_TABLE, 'refer_id', $iProcId);
		}
		while($iReferId!=0);
		$this->setProcedureId($iProcId);
		*/
		$iReferId = $this->oMySql->selectValue(Databap::PROC_TABLE, 'refer_id', $this->getProcedureId());
		$sSelect = "MAX(".MySqlManager::getId(Databap::PROC_TABLE).")";
		$iProcId = $this->oMySql->selectValue(Databap::PROC_TABLE, $sSelect, array('refer_id'=>$iReferId));
		$this->setProcedureId($iProcId);
	}
}

?>