<?php

class Project extends PhpObject {
	
	//Spot Mode
	const MODE_PREVIZ = 'P';
	const MODE_BLOG = 'B';
	const MODE_HISTO = 'H';
	const MODES = array('previz'=>self::MODE_PREVIZ, 'blog'=>self::MODE_BLOG, 'histo'=>self::MODE_HISTO);
	
	//DB Tables
	const PROJ_TABLE = 'projects';
	
	/**
	 * Database Handle
	 * @var Db
	 */
	private $oDb;
	
	private $iProjectId;
	private $sMode;
	private $sName;
	private $sCodeName;
	private $asActive;
	private $asGeo;
	
	public function __construct(Db &$oDb) {
		parent::__construct(__CLASS__, Settings::DEBUG);
		$this->oDb = &$oDb;
	}
	
	public function getProjectId() {
		return $this->iProjectId;
	}
	
	public function setProjectId($iProjectId=0) {
		if($iProjectId > 0) {
			$this->iProjectId = $iProjectId;
		}
		else {
			/**
			 * Project 1		      [-----------------]
			 * Project 2		                                [---------------------------]
			 * Project 3		                                                                      [-----------]
			 * Selected Project	[-------Project 1-------][------------Project 2-------------][---------------Project 3------------------
			 * Mode				--P--][--------B--------][--P--][-----------B---------------][---P---][-----B-----][---------H----------
			 */
			$sQuery = "SELECT MAX(id_project) FROM projects WHERE active_to = (SELECT MIN(active_to) FROM projects WHERE active_to > NOW() OR active_to = (SELECT MAX(active_to) FROM projects))";
			$asResult = $this->oDb->getArrayQuery($sQuery, true);
			$this->iProjectId = array_shift($asResult);
		}
		
		$this->setProjectInfo();
	}
	
	public function getMode() {
		return $this->sMode;
	}
	
	public function getProjectCodeName() {
		return $this->sCodeName;
	}
	
	public function setProjectCodeName($sCodeName) {
		return $this->updateField('codename', $sCodeName);
	}
	
	public function getActivePeriod($sFromTo='') {
		return ($sFromTo=='')?$this->asActive:$this->asActive[$sFromTo];
	}
	
	public function setActivePeriod($oValue, $sFromTo='') {
		if($sFromTo=='') {
			$this->updateField('active_from', $oValue['from']);
			return $this->updateField('active_to', $oValue['to']);
		}
		else {
			return $this->updateField('active_'.$sFromTo, $oValue);
		}
	}
	
	public function getTimeZone() {
		return $this->asGeo['timezone'];
	}
	
	public function setTimeZone($sTimeZone) {
		return $this->updateField('timezone', $sTimeZone);
	}
	
	public function getGeoFile() {
		return $this->asGeo['file'];
	}

	public function getFeedIds() {
		return $this->oDb->selectColumn(
			Feed::FEED_TABLE,
			Db::getId(Feed::FEED_TABLE),
			array(Db::getId(self::PROJ_TABLE) => $this->getProjectId())
		);
	}
	
	public function getProjects($iProjectId=0) {
		$bSpecificProj = ($iProjectId > 0);
		$asInfo = array(
			'select'=> array(
				Db::getId(self::PROJ_TABLE)." AS id",
				'codename',
				'name',
				'active_from',
				'active_to',
				"IF(NOW() BETWEEN active_from AND active_to, 1, IF(NOW() < active_from, 0, 2)) AS mode",
				'geofile',
				'timezone'
			),
			'from'	=> self::PROJ_TABLE
		);
		if($bSpecificProj) $asInfo['constraint'] = array(Db::getId(self::PROJ_TABLE)=>$iProjectId);
		
		$asProjects = $this->oDb->selectRows($asInfo, 'codename');
		foreach($asProjects as $sCodeName=>&$asProject) {
			switch($asProject['mode']) {
				case 0: $asProject['mode'] = self::MODE_PREVIZ; break;
				case 1: $asProject['mode'] = self::MODE_BLOG; break;
				case 2: $asProject['mode'] = self::MODE_HISTO; break;
			}
			
			if(!Converter::isGeoJsonValid($asProject['geofile'])) Converter::convertToGeoJson($asProject['geofile']);
			
			$asProject['geofile'] = Spot::addTimestampToFilePath(Geo::getFilePath($asProject['geofile'], GeoJson::EXT));
			$asProject['codename'] = $sCodeName;
		}
		return $bSpecificProj?$asProject:$asProjects;
	}
	
	public function getProject() {
		return $this->getProjects($this->getProjectId());
	}
	
	private function setProjectInfo() {
		if($this->getProjectId() > 0) {
			$asProject = $this->getProject();

			$this->sMode = $asProject['mode'];
			$this->asActive = array('from'=>$asProject['active_from'], 'to'=>$asProject['active_to']);
			$this->sCodeName = $asProject['codename'];
			$this->sName = $asProject['name'];
			$this->asGeo = array('file'=>$asProject['geofile'], 'timezone'=>$asProject['timezone']);
		}
		else $this->addError('Error while setting project: no project ID');
	}
	
	private function updateField($sField, $oValue) {
		$bResult = ($this->oDb->updateRow(self::PROJ_TABLE, $this->getProjectId(), array($sField=>$oValue)) > 0);
		$this->setProjectInfo();
		
		return $bResult;
	}
}