<?php
// declare(encoding='UTF-8');
/**
 * Service fournissant des informations concernant les votes sur les images de DEL en fonction d'un protocole
 * au format RSS1, RSS2 ou ATOM.
 *
 * @category   DEL
 * @package    Services
 * @subpackage Syndication
 * @version    0.1
 * @author     Mathias CHOUET <mathias@tela-botanica.org>
 * @author     Jean-Pascal MILCENT <jpm@tela-botanica.org>
 * @author     Aurelien PERONNET <aurelien@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>
 * @copyright  1999-2014 Tela Botanica <accueil@tela-botanica.org>
 */
class Votes {

	private $categorie = 'Vote protocole';
	private $conteneur;
	private $bdd;
	private $navigation;
	private $syndication;
	private $mapping = array();

	public function __construct(Conteneur $conteneur) {
		$this->conteneur = $conteneur;
		$this->bdd = $this->conteneur->getBdd();
		$this->navigation = $this->conteneur->getNavigation();
		$this->syndication = $this->conteneur->getSyndicationOutils();
		$this->mapping = $this->conteneur->getParametreTableau('syndication.mapping');
	}

	public function consulter() {
		if ($this->syndication->fluxAdminDemande()) {
			$this->syndication->demanderAutorisationAdmin();
		}

		$donnees_brutes = $this->getDerniersVotesImage();
		$commentaires_formates = $this->formaterPourRss($donnees_brutes) ;
		return $commentaires_formates;
	}

	/**
	 * Formater les données pour mettre en page le RSS
	 * */
	private function formaterPourRss($elements) {
		$derniere_info_en_date = reset($elements);
		$donnees = $this->syndication->construireDonneesCommunesAuFlux('vote', $derniere_info_en_date['date_vote']);
		foreach ($elements as $element) {
			$donnees['items'][] = $this->construireDonneesCommunesAuxItems($element);
		}
		return $donnees;
	}

	/**
	 * Générer les données communes & spécifiques à chaque item
	 * */
	private function construireDonneesCommunesAuxItems($info) {
		$item = array();
		$date_modification_timestamp = strtotime($info['date_vote']);
		$item['date_maj_simple'] = strftime('%A %d %B %Y à %H:%M', $date_modification_timestamp);
		$item['date_maj_RSS'] = date(DATE_RSS, $date_modification_timestamp);
		$item['date_maj_ATOM'] = date(DATE_ATOM, $date_modification_timestamp);
		$item['date_maj_W3C'] = date(DATE_W3C, $date_modification_timestamp);
		$item['titre'] = $this->creerTitre($info);
		$item['guid'] = $this->creerGuidItem($info);
		$item['lien'] = $this->creerLienItem($info);
		$item['categorie'] = htmlentities($this->categorie);
		$item['description'] = $this->creerDescription($info, $item);
		$item['description_encodee'] = htmlspecialchars($this->creerDescription($info, $item));
		$item['modifier_par'] = $this->creerVotant($info);
		return $item;
	}

	private function creerGuidItem($element) {
		$guid = sprintf($this->conteneur->getParametre('syndication.vote_guid_tpl'), $element['id_vote']);
		return $guid;
	}

	private function creerLienItem($element) {
		$lien = sprintf($this->conteneur->getParametre('img_fiche_tpl'), $element['ce_image']);
		return $lien;
	}

	private function creerTitre($element) {
		$noteVote = $element['valeur'];
		$nomSci = htmlspecialchars($element['nom_sel']);
		$votant = htmlspecialchars($this->creerVotant($element));
		$observateur = htmlspecialchars($this->creerObservateur($element));

		$titre = "Vote $noteVote par $votant pour $nomSci de $observateur";
		return $titre;
	}

	private function creerDescription($donnees, $item) {
		$idVote = htmlspecialchars($donnees['id_vote']);
		$idObs = htmlspecialchars($donnees['id_observation']);
		$idImg = htmlspecialchars($donnees['ce_image']);
		$urlImg = $this->syndication->getUrlImage($donnees['ce_image']);
		$miniatureUrl = $this->syndication->getUrlImage($donnees['ce_image'], 'CRS');
		$nomSelActuel = htmlspecialchars($donnees['nom_sel']);
		$dateObs = htmlspecialchars(str_replace(' 00:00:00', '', $donnees['date_observation']));
		$lieuObs = htmlspecialchars($donnees['zone_geo']);
		$protocole = htmlspecialchars($donnees['intitule']);
		$votant = htmlspecialchars($this->creerVotant($donnees));
		$dateVote = htmlspecialchars(strftime('%A %d %B %Y à %H:%M', strtotime($donnees['date_vote'])));
		$observateur = htmlspecialchars($this->creerObservateur($donnees));

		$description = '<style>.champ{color:grey} .gauche{float:left;padding:0 20px 0 0;} ul{list-style-type:none;padding:0;}</style>'.
			'<h2>'."Vote pictoFlora #$idVote pour l'image #$idImg de l'observation #$idObs".'</h2>'.
			'<div class="gauche">'.
			'	<a href="'.$urlImg.'">'.
			'		<img src="'.$miniatureUrl.'" alt="Img #'.$idImg.'"/>'.
			'	</a>'.
			'</div>'.
			'<div class="gauche">'.
			"	<h3>Image #$idImg de l'observation #$idObs</h3>".
			'	<ul>'.
			'		<li><span class="champ">'."Auteur de l'image :</span> $observateur</li>".
			'		<li><span class="champ">'."Nom saisi actuel :</span> <em>$nomSelActuel</em></li>".
			'		<li><span class="champ">'."Lieu :</span> $lieuObs</li>".
			'		<li><span class="champ">'."Date :</span> $dateObs</li>".
			'	</ul>'.
			'</div>'.
			'<div class="gauche">'.
			"	<h3>Vote #$idVote</h3>".
			'	<ul>'.
			'		<li><span class="champ">'."Protocole :</span> <strong>$protocole</strong></li>".
			'		<li><span class="champ">'."Valeur :</span> <strong>{$donnees['valeur']}</strong>/5</li>".
			'		<li><span class="champ">'."Votant :</span> $votant</li>".
			'		<li><span class="champ">'."À voté le :</span> $dateVote</li>".
			'	</ul>'.
			'</div>';
		return $description;
	}

	private function creerVotant($info) {
		$votant = 'Anonyme';
		if (isset($info['votant_prenom']) && isset($info['votant_nom'])) {
			$votant = $info['votant_prenom'].' '.$info['votant_nom'];
		}
		return $votant;
	}

	private function creerObservateur($info) {
		$observateur = 'Anonyme';
		if ($info['observateur_prenom'] != '' && $info['observateur_nom'] != '') {
			$observateur = $info['observateur_prenom'].' '.$info['observateur_nom'];
		}
		return $observateur;
	}


	/**
	 * Retrouver les derniers votes image
	 * */
	private function getDerniersVotesImage() {
		$elements = array();
		$idsVotes = $this->getIdsDerniersVotesImage();
		if (!empty($idsVotes)) {
			$idsVotesConcat = implode(', ', $idsVotes);
			$requete =  'SELECT DISTINCT id_vote, ce_image, valeur, divo.date AS date_vote, '.
					'	duo.prenom AS observateur_prenom, duo.nom AS observateur_nom, '.
					'	duv.prenom AS votant_prenom, duv.nom AS votant_nom, '.
					'	do.id_observation, do.nom_sel, do.zone_geo, do.date_observation, dip.intitule '.
					'FROM del_image_vote AS divo '.
					'	INNER JOIN del_image AS di '.
					'		ON divo.ce_image = di.id_image '.
					'	INNER JOIN del_observation AS do '.
					'		ON di.ce_observation = do.id_observation '.
					'	INNER JOIN del_image_protocole AS dip '.
					'		ON ce_protocole = id_protocole '.
					'	LEFT JOIN del_utilisateur AS duo '.
					'		ON do.ce_utilisateur = duo.id_utilisateur '.
					'	LEFT JOIN del_utilisateur AS duv '.
					'		ON if((CHAR_LENGTH(divo.ce_utilisateur) <> 32),CAST(divo.ce_utilisateur AS unsigned),0) '.
					'			= duv.id_utilisateur '.
					"WHERE id_vote IN ($idsVotesConcat) ".
					'ORDER BY divo.date DESC '.
					'LIMIT '.$this->navigation->getDepart().','.$this->navigation->getLimite().
					' -- '.__FILE__.' : '.__LINE__;
			$elements = $this->bdd->recupererTous($requete);
		}
		return $elements;
	}

	/**
	 * Retrouver les ids des derniers votes image
	 * */
	private function getIdsDerniersVotesImage() {
		$clauseWhere = $this->chargerClauseWhere();
		$requete =  'SELECT DISTINCT id_vote '.
				'FROM del_image_vote '.
				($clauseWhere != '' ? "WHERE $clauseWhere " : '').
				'ORDER BY date DESC '.
				'LIMIT '.$this->navigation->getDepart().','.$this->navigation->getLimite().
				' -- '.__FILE__.' : '.__LINE__;
		$resultats = $this->bdd->recupererTous($requete);

		$idsVotes = array();
		if ($resultats != false && is_array($resultats)) {
			foreach ($resultats as $infos) {
				$idsVotes[] = $infos['id_vote'];
			}
		}
		return $idsVotes;
	}

	private function chargerClauseWhere() {
		$where = array();
		$filtres = $this->navigation->getFiltre();
		if (!empty($filtres)) {
			$filtrePossibles = $this->conteneur->getParametreTableau('syndication.vote_filtres');
			foreach ($filtres as $cleFiltre => $valeur) {
				if (in_array($cleFiltre, $filtrePossibles)) {
					$champ = $this->mapping[$cleFiltre];
					$valeurP = $this->bdd->proteger($valeur);
					$where[] = " $champ = $valeurP ";
				}
			}
		}

		return (!empty($where)) ? implode('AND', $where) : '';
	}
}