Subversion Repositories eFlore/Applications.moissonnage

<?php


class FormateurJson {
        
        private $sourceDonnees;
        
        public function __construct($source) {
                $this->sourceDonnees = $source;
        }
        
        
        public function formaterStations($stations) {
                $objetJSON = new StdClass();
                $objetJSON->type = "FeatureCollection";
                $objetJSON->stats = new StdClass();
                $objetJSON->stats->communes = 0;
                $objetJSON->stats->stations = 0;
                $objetJSON->features = array();
                
                foreach ($stations as $station) {
                        $stationJSON = NULL;
                        // construction d'un objet feature adapte a la structure des donnees spatiales
                        if ($station['type_site'] == 'MAILLE') {
                                $stationJSON = $this->formaterMaille($station);
                        } else {
                                if ($station['type_site'] == 'STATION') {
                                        $objetJSON->stats->communes ++;
                                } else {
                                        $objetJSON->stats->stations ++;
                                }
                                $stationJSON = $this->formaterPoint($station);
                        }
                        if (!is_null($stationJSON)) {
                                $objetJSON->features[] = $stationJSON;
                        }
                }
                return $objetJSON;
        }
        
        private function formaterPoint($station) {
                $json = new StdClass();
                $json->type = "Feature";
                $json->geometry = new StdClass();
                $json->properties = new StdClass();
                $json->geometry->type = "Point";
                $json->properties->typeSite = $station['type_site'];
                if ($this->sourceDonnees == 'floradata' && $station['type_site'] == 'COMMUNE') {
                        $json->geometry->coordinates = array($station['lat_commune'], $station['lng_commune']);
                } else {
                        $json->geometry->coordinates = array($station['latitude'], $station['longitude']);
                }
                
                if ($this->sourceDonnees == 'floradata') {
                        $json->properties->nom = $this->construireNomStationFloradata($station);
                } else {
                        $station['code_insee'] = '';
                        $codeDepartement = $this->extraireCodeDepartement($station['code_insee']);
                        $json->properties->nom = trim($station['nom'])." ({$codeDepartement})";
                }
                
                return $json;
        }
        
        private function construireNomStationFloradata($station) {
                $nom = ($station['type_site'] == 'COMMUNE') ? trim($station['nom_commune']) : trim($station['station']);
                $codeDepartement = $this->extraireCodeDepartement($station['ce_zone_geo']);
                if ($station['type_site'] == 'COMMUNE') {
                        $nom = $station['zone_geo'] . " ({$codeDepartement})";
                } else {
                        if (strlen($nom) == 0) {
                                $nom = 'station sans nom, '.trim($station['zone_geo']);
                        }
                        $nom .= " ({$codeDepartement})";;
                }
                return $nom;
        }
        
        private function extraireCodeDepartement($codeInsee) {
                $codeInsee = substr($codeInsee,-5);
                $codeDepartement = substr($codeInsee, 0 ,2);
                if (intval($codeDepartement) > 95) {
                        substr($codeInsee, 0 ,3);
                }
                return $codeDepartement;
        }
        
        
        private function formaterMaille($maille) {
                if ($maille['points'] == 0) {
                        return null;
                }
                $json = new StdClass();
                $json->type = "Feature";
                $json->geometry = new StdClass();
                $json->geometry->type = "Polygon";
                $json->geometry->coordinates = array(
                        array(floatval($maille['sud']),  floatval($maille['ouest'])),
                        array(floatval($maille['sud']),  floatval($maille['est'])),
                        array(floatval($maille['nord']), floatval($maille['est'])),
                        array(floatval($maille['nord']), floatval($maille['ouest'])),
                        array(floatval($maille['sud']),  floatval($maille['ouest']))
                );
                $json->properties = new StdClass();
                $json->properties->typeSite = $maille['type_site'];
                $json->properties->nombrePoints = $maille['points'];
                return $json;
        }
        
        
        public function formaterObservations($observations, $nomSite) {
                $objetJSON = new StdClass();
                $objetJSON->site = trim($nomSite);
                $objetJSON->total = count($observations);
                
                $objetJSON->observations = array();
                foreach ($observations as $observation) {
                        $observationJson = new stdClass();
                        foreach ($observation as $colonne => $valeur) {
                                if ($colonne == 'nom_referentiel') {
                                        $observationJson->urlEflore = $this->genererUrlFicheEflore($observation);
                                } else {
                                        $observationJson->$colonne = is_string($valeur) ? trim($valeur) : $valeur;
                                }
                        }
                        $objetJSON->observations[] = $observationJson;
                }
                return $objetJSON;
        }
        
        private function genererUrlFicheEflore($observation) {
                $url = null;
                if (strstr('bdtfx', $observation['nom_referentiel']) !== false) {
                        $url = 'http://www.tela-botanica.org/bdtfx-nn-'.$observation['nn'];
                }
                return $url;
        }
        
}

?>