<?php

class FormateurWfs {
	
	const TYPE_MIME = 'text/xml';
	private $bbox = null;
	
	public function formaterGetCapabilities() {
		$nomFichierWfs = dirname(__FILE__).DS."squelettes".DS."GetCapabilities.tpl.xml";
		return SquelettePhp::analyser($nomFichierWfs);
	}
	
	public function formaterDescribeFeatureType($sources) {
		$nomFichierWfs = dirname(__FILE__).DS."squelettes".DS."DescribeFeatureType.tpl.xml";
		if (is_null($sources)) {
			$sources = Config::get('sources_dispo');
		}
		$listeSources = is_array($sources) == 1 ? $sources : explode(',', $sources);
		$item = array('listeSources' => $listeSources);
		return SquelettePhp::analyser($nomFichierWfs, $item);
	}
	
	public function formaterGetFeature(& $stations, $sources) {
		$nomFichierWfs = dirname(__FILE__).DS."squelettes".DS."GetFeature.tpl.xml";
		$this->bbox = array('ouest' => null, 'est' => null, 'sud' => null, 'nord'=> null);
		$stationsRetour = $this->mettreEnPageStations($stations);
		$listeSources = implode(',', $sources);
		$item = array('enveloppe' => $this->bbox, 'stations' => $stationsRetour, 'listeSources' => $listeSources);
		return SquelettePhp::analyser($nomFichierWfs, $item);
	}
	
	private function mettreEnPageStations(& $stations) {
		$station = array('longitude' => null, 'latitude' => null);
		$stationsRetour = array();
		foreach ($stations as $stationBdd) {
			if ($this->estNonNul($stationBdd['longitude']) && $this->estNonNul($stationBdd['latitude'])
			&& ($stationBdd['longitude'] != $station['longitude'] || $stationBdd['latitude'] != $station['latitude'])) {
				if (isset($station['source'])) {
					if ($station['source'] == 'floradata') {
						$this->mettreEnPageStationFloradata($station);
					} else {
						$this->mettreEnPageStationMoissonnage($station);
					}
					$stationsRetour[] = $station;
				}
				
				foreach ($stationBdd as $cle => $valeur) {
					if ($cle != 'taxon' && $cle != 'auteur') {
						$station[$cle] = $valeur;
					}
				}
				$station['taxons'] = array(trim($stationBdd['taxon']));
				$station['auteurs'] = array(trim($stationBdd['auteur']));
				$this->mettreAJourBbox($station);
			} else {
				$station['taxons'][] = trim($stationBdd['taxon']);
				$station['auteurs'][] = trim($stationBdd['auteur']);
			}
		}
		return $stationsRetour;
	}
	
	private function estNonNul($valeur) {
		return (!is_null($valeur) && strlen(trim($valeur)) > 0);
	}
	
	private function mettreAJourBbox($station) {
		if (is_null($this->bbox['sud']) || floatval($station['latitude']) < floatval($this->bbox['sud'])) {
			$this->bbox['sud'] = $station['latitude'];
		} elseif (is_null($this->bbox['nord']) || floatval($station['latitude']) > floatval($this->bbox['nord'])) {
			$this->bbox['nord'] = $station['latitude'];
		}
		if (is_null($this->bbox['ouest']) || floatval($station['longitude']) < floatval($this->bbox['ouest'])) {
			$this->bbox['ouest'] = $station['longitude'];
		} elseif (is_null($this->bbox['est']) || floatval($station['longitude']) > floatval($this->bbox['est'])) {
			$this->bbox['est'] = $station['longitude'];
		}
	}
	
	private function mettreEnPageStationFloradata(& $station) {
		$station['nom_station'] = trim($station['station']);
		if ($this->estNonNul($station['zone_geo'])) {
			$station['nom_station'] .= ", ".$station['zone_geo'];
		}
		$station['nom_station'] = str_replace("&", "&amp;", trim($station['nom_station']));
		$station['departement'] = '';
		$station['code_insee'] = '';
		if ($this->estNonNul($station['ce_zone_geo'])) {
			$station['code_insee'] = substr($station['ce_zone_geo'], 8);
			$station['departement'] = substr($station['code_insee'],0, 2);
			if (intval($station['departement']) > 95) {
				$station['departement'] = substr($station['code_insee'],0, 2);
			}
		}
		unset($station['station']);
		unset($station['zone_geo']);
		unset($station['ce_zone_geo']);
		$station['taxons'] = str_replace("&", "&amp;", implode(', ', $station['taxons']));
		$station['auteurs'] = str_replace("&", "&amp;", implode(', ', array_unique($station['auteurs'])));
	}
	
	private function mettreEnPageStationMoissonnage(& $station) {
		$station['nom_station'] = str_replace("&", "&amp;", trim($station['nom']));
		$station['departement'] = '';
		if ($this->estNonNul($station['code_insee'])) {
			$station['departement'] = substr($station['code_insee'],0, 2);
			if (intval($station['departement']) > 95) {
				$station['departement'] = substr($station['code_insee'],0, 2);
			}
		}
		unset($station['nom']);
		$station['taxons'] = str_replace("&", "&amp;", implode(', ', $station['taxons']));
		$station['auteurs'] = str_replace("&", "&amp;", implode(', ', array_unique($station['auteurs'])));
	}
	
	public function formaterException(Exception $erreur) {
		$nomFichierWfs = dirname(__FILE__).DS."squelettes".DS."Exception.tpl.xml";
		$item = array('message' => $erreur->getMessage());
		return SquelettePhp::analyser($nomFichierWfs, $item);
	}
	
}

?>