<?php
/**
* Description :
* Classe principale de chargement des services d'eFlore.
*
* Encodage en entrée : utf8
* Encodage en sortie : utf8
* @package eflore-projets
* @author Jennifer DHÉ <jennifer.dhe@tela-botanica.org>
* @author Delphine CAUQUIL <delphine@tela-botanica.org>
* @author Jean-Pascal MILCENT <jpm@tela-botanica.org>
* @license GPL v3 <http://www.gnu.org/licenses/gpl.txt>
* @license CECILL v2 <http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt>
* @version 0.1
* @copyright 1999-2011 Tela Botanica (accueil@tela-botanica.org)
*/
class Utilisateurs extends RestService {

	
	private $parametres = array();
	private $ressources = array();
	private $methode = null;
	private $projetNom = array();
	private $serviceNom = array();
	private $cheminCourant = null;

	private $conteneur;
	
	/** Indique si oui (true) ou non (false), on veut utiliser les paramètres bruts. */
	protected $utilisationParametresBruts = true;

	public function __construct() {
		$this->cheminCourant = dirname(__FILE__).DS;
	}

	public function consulter($ressources, $parametres) {
		$this->methode = 'consulter';
		$resultat = '';
		$reponseHttp = new ReponseHttp();
		try {
			$this->initialiserRessourcesEtParametres($ressources, $parametres);
			$this->conteneur = new Conteneur($this->parametres);
			$resultat = $this->traiterRessources();
			$reponseHttp->setResultatService($resultat);
		} catch (Exception $e) {
			$reponseHttp->ajouterErreur($e);
		}
		$reponseHttp->emettreLesEntetes();
		$corps = $reponseHttp->getCorps();
		return $corps;
	}
	
	public function modifier($ressources, $parametres) {
		$this->methode = 'modifier';
		$resultat = '';
		$reponseHttp = new ReponseHttp();
		try {
			$this->initialiserRessourcesEtParametres($ressources, $parametres);
			$this->conteneur = new Conteneur($this->parametres);
			$resultat = $this->traiterRessources();
			$reponseHttp->setResultatService($resultat);
		} catch (Exception $e) {
			$reponseHttp->ajouterErreur($e);
		}
		$reponseHttp->emettreLesEntetes();
		$corps = $reponseHttp->getCorps();
		return $corps;
	}
	
	private function initialiserRessourcesEtParametres($ressources, $parametres) {
		$this->ressources = $ressources;
		$this->parametres = $parametres;
	}

	private function traiterRessources() {
		$retour = '';
		$this->initialiserProjet();
		$retour = $this->initialiserService();
		return $retour;
	}
	

	/*------------------------------------------------------------------------------------------------------------------
										CONFIGURATION DU PROJET
	------------------------------------------------------------------------------------------------------------------*/
	private function initialiserProjet() {
		$this->projetNom = 'utilisateurs';
		$this->chargerConfigProjet();
	}

	private function chargerConfigProjet() {
		$projet = $this->projetNom;
		$chemin = Config::get('chemin_configurations')."config_$projet.ini";
		Config::charger($chemin);
	}

	/*------------------------------------------------------------------------------------------------------------------
								CONFIGURATION DU SERVICE
	------------------------------------------------------------------------------------------------------------------*/
	private function initialiserService() {
		
		$this->chargerNomService();
				
		$classe = $this->obtenirNomClasseService($this->serviceNom);
		$chemins = array();
		$chemins[] = $this->cheminCourant.$this->projetNom.DS.$classe.'.php';
		$chemins[] = $this->cheminCourant.'commun'.DS.$classe.'.php';
		$retour = '';
		$service = null;
		foreach ($chemins as $chemin) {
			if (file_exists($chemin)) {
				$this->conteneur->chargerConfiguration('config_'.$this->projetNom.'.ini');
				
				require_once $chemin;
				$service = new $classe($this->conteneur);
				if ($this->methode == 'consulter') {
					$retour = $service->consulter($this->ressources, $this->parametres);
				} elseif ($this->methode == 'ajouter') {
					$retour = $service->ajouter($this->ressources, $this->parametres);				
				} elseif ($this->methode == 'modifier') {
					$retour = $service->modifier($this->ressources, $this->parametres);				
				}
			}
		}
		
		if (is_null($service)) {
			$message = "Le service demandé '{$this->serviceNom}' n'existe pas dans le projet {$this->projetNom} !";
			$code = RestServeur::HTTP_CODE_RESSOURCE_INTROUVABLE;
			throw new Exception($message, $code);
		}
		return $retour;
	}
	
	private function chargerNomService() {
		//S'il n'y a pas de ressources => envoyer sur identification anonyme
		if (!isset($this->ressources) || empty($this->ressources)) {
			$this->serviceNom = 'identification-anonyme';
		} else {
			//S'il y a 1 ressource et que celle ci est 'deconnecter', envoyer vers deconnecter
			if (sizeof($this->ressources) == 1 && ($this->ressources[0] == 'deconnecter')) {
				$this->serviceNom = 'deconnecter';
			} else if(sizeof($this->ressources) == 2 && $this->ressources[1] == 'preferences') {
				$this->serviceNom = 'preferences';
			} else if (sizeof($this->ressources) == 2) {
				$this->serviceNom = 'connecter';
			} else {
				$this->serviceNom = 'identification-anonyme';
			}
		}
	}

	private function obtenirNomClasseService($mot) {
		$classeNom = str_replace(' ', '', ucwords(strtolower(str_replace('-', ' ', $mot))));
		return $classeNom;
	}


}
?>