<?php

// +-------------------------------------------------+
// © 2002-2010 PMB Services / www.sigb.net pmb@sigb.net et contributeurs (voir www.sigb.net)
// +-------------------------------------------------+
// $Id: map_model.class.php,v 1.26 2019/05/28 14:16:07 ngantier Exp $

if (stristr($_SERVER['REQUEST_URI'], ".class.php"))
    die("no access");
require_once($class_path . "/map/map_hold.class.php");
require_once($class_path . "/map/map_layer_model_record.class.php");
require_once($class_path . "/map/map_layer_model_authority.class.php");
require_once($class_path . "/map/map_holds_reducer.class.php");
require_once($class_path . "/map/map_layer_model_location.class.php");
require_once($class_path . "/map/map_layer_model_sur_location.class.php");

/**
 * class map_model
 * 
 */
class map_model {
    /** Aggregations: */
    /** Compositions: */
    /*     * * Attributes: ** */

    /**
     * Emprise de la carte
     * @var map_hold_polygon
     * @access protected
     */
    protected $map_hold;

    /**
     * Liste des identifiants des objects
     * @var Array()
     * @access protected
     */
    protected $ids;

    /**
     * Tableau de layer_model
     * @access protected
     */
    protected $models;

    /**
     * Tableau de booléen sur la visibilité des modèles (clés identiques)
     * @access protected
     */
    protected $visibility;

    /**
     * Nombre maximum d'emprises présentes sur une couche de la carte.
     * Si= 0, pas de limitation
     * @access protected
     */
    protected $hold_max;
    protected $cluster;

    /**
     *  @param map_hold_polygon map_hold Emprise courante de la carte
     *  @param Array() ids Liste des identifiants des objets
     *  @param int hold_max Nombre maximum d'emprise présentes sur une couche de la carte

     * @return void
     * @access public
     *
     *
     *  Array(
     * 	    Array(
     * 	  		'layer'=> "categ",
     * 	  		'ids=> array(...),
     * 	 	),
     * 		Array(
     * 	  		'layer'=> "record",
     * 	  		'ids=> array(...),
     * 	 	)
     * 	)
     * 
     */
    public function __construct($map_hold, $ids, $hold_max = 0, $cluster = "true") {
        $this->map_hold = $map_hold;
        $this->hold_max = $hold_max;
        $this->ids = $ids;
        $this->cluster = $cluster;
        for ($i = 0; $i < count($this->ids); $i++) {
            $layer_model_class_name = $this->get_layer_model_class_name($this->ids[$i]['layer']);
            if ($this->ids[$i]['layer'] == 'authority' || $this->ids[$i]['layer'] == 'authority_concept') {

                $this->models[$this->ids[$i]['layer']] = new $layer_model_class_name($this->ids[$i]['type'], $this->ids[$i]['ids']);
            } elseif ($this->ids[$i]['layer'] == 'location') {

                $this->models[$this->ids[$i]['layer']] = new $layer_model_class_name($this->ids[$i]['ids']);

                if (isset($this->ids[$i]['name']) && $this->ids[$i]['name']) {
                    $this->models[$this->ids[$i]['layer']]->set_layer_model_name($this->ids[$i]['name']);
                }
            } else {
                $this->models[$this->ids[$i]['layer']] = new $layer_model_class_name($this->ids[$i]['ids']);
            }
        }
        if ($this->map_hold == null) {
            $this->map_hold = $this->get_bounding_box();
        }
    }
// end of member function __construct

    /**
     * Calcul l'emprise minimal pour afficher toutes les emprises de tous les modèles
     *
     * @return map_hold
     * @access public
     */
    public function get_bounding_box($edit_mode = 0) {
        global $dbh, $pmb_map_bounding_box;
        
        $collection = "";
        foreach ($this->models as $key => $layer_model) {
            if ($collection)
                $collection.= ",";
            $layer_bounding_box = $layer_model->get_bounding_box();
            if ($layer_bounding_box) {
                $collection.= $layer_bounding_box->get_wkt();
            }
        }
        if ($collection) {
            $query = "select astext(envelope(geomfromtext('geometrycollection(" . $collection . ")'))) as bounding_box";
            $result = pmb_mysql_query($query, $dbh) or die(pmb_mysql_error());
            if (pmb_mysql_num_rows($result)) {
                $bounding_box = new map_hold_polygon("bounding", 0, pmb_mysql_result($result, 0, 0));
            }
        } else {
            if ($edit_mode) {
            	if( $pmb_map_bounding_box) {
            		return $bounding_box = new map_hold_polygon("bounding", 0, "polygon((".$pmb_map_bounding_box."))");
            	}
               	return $bounding_box = new map_hold_polygon("bounding", 0, "polygon((-5 50,9 50,9 40,-5 40,-5 50))");
            }   	
            return false;
        }
        return $bounding_box;
    }
// end of member function get_bounding_box

    /**
     * Retourne la liste des layers
     *
     * @return map_layer_model
     * @access public
     */
    public function get_layers() {
        return $this->models;
    }
// end of member function get_layers	

    /**
     * Retourne les objets à  afficher sur la carte.
     * La méthode fait appel à  l'algo de réduction si besoin
     *
     * @param int id_layer Identifiant du layer

     * @return map_hold
     * @access public
     */
    public function get_objects($id_layer) {
        $objects = $this->models[$id_layer]->get_holds();
        if ($this->get_mode() == "edition" || $this->get_mode() == "visualisation" || $this->cluster === "false") {
            uasort($objects, array('map_holds_reducer', 'cmp_area'));
            return $objects;
        } else {
            $holds_reducer = new map_holds_reducer($this->map_hold, $objects);
            $objects = $holds_reducer->get_reduction();
            return $objects;
        }
    }
// end of member function get_objects

    /**
     * 
     * ;
     * @param bool visible Visible ou non

     *  @param int num_layer Identifiant du layer

     * @return void
     * @access public
     */
    public function set_visibility($visible, $num_layer) {
        
    }
// end of member function set_visibility

    /**
     * Retourne une structure JS au format JSON,contenant les informations du modèle
     * courant.
     * Soit les données (les différentes emprises typées avec la réduction si
     * nécessaire), soit l'URL à  appeler en AJAX pour les récupérer
     *
     * @param bool mode_ajax Défini si on passe la structure complète ou les infos pour récupérer en AJAX

     * @param string url_base URL de base fournie par le controler

     * @return string
     * @access public
     */
    public function get_json_informations($mode_ajax, $url_base, $editable = false) {
        $informations = array();

        foreach ($this->models as $key => $layer_model) {
            $infos = $layer_model->get_informations();
            if (!$mode_ajax) {
                $infos['holds'] = $this->get_holds_informations($key);
            } else {
                $infos['holds'] = array();
            }
            $infos['data_url'] = $url_base . "ajax.php?module=ajax&categ=map&sub=" . $this->mode . "&action=get_holds";
            $infos['editable'] = $editable;
            $infos['ajax'] = $mode_ajax;
            $informations[] = $infos;
        }
        return $informations;
    }

// end of member function get_json_informations

    protected function get_layer_model_class_name($layer = "") {
        if ($layer) {
            if($layer == "authority_concept") $layer = "authority";
            if (class_exists("map_layer_model_" . $layer)) {
                return "map_layer_model_" . $layer;
            } else {
                return $this->get_layer_model_class_name();
            }
        } else {
            return false;
        }
    }

    public function get_holds_informations($id_layer) {
        global $dbh;
        
        $informations = array();
        $holds_layer = $this->get_objects($id_layer);
        foreach ($holds_layer as $id => $hold) {
            $infos = array(
                'wkt' => $hold->get_wkt(),
                'type' => $hold->get_hold_type(),
                'color' => null,
                'objects' => array(
                    $id_layer => (is_array($hold->get_num_object()) ? $hold->get_num_object() : array($hold->get_num_object()))
                )
            );
            if ($id_layer == "authority" || $id_layer == "authority_concept") {
                $type_authority = $this->models[$id_layer]->get_type();                
                $notices_ids = array();
                if (!empty($_SESSION["session_history"][$_SESSION['CURRENT']]["NOTI"]["TEXT_QUERY"])) {
                    $requete = substr($_SESSION["session_history"][$_SESSION['CURRENT']]["NOTI"]["TEXT_QUERY"], 0, strpos($_SESSION["session_history"][$_SESSION['CURRENT']]["NOTI"]["TEXT_QUERY"], "limit"));
                    if($requete) {
                        $result = pmb_mysql_query($requete, $dbh);
                        while ($row = pmb_mysql_fetch_object($result)) {
                            $notices_ids[] = $row->notice_id;
                        }                    
                    }
                }
                if ($type_authority == 2) {
                    $requete = "select notcateg_notice as notice_id from notices_categories where num_noeud in (" . implode(",", $infos['objects']['authority']) . ")";
                    if (count($notices_ids)) {
                        $requete.= " and notcateg_notice in (" . implode(",", $notices_ids) . ")";
                    }
                } else {
                    $requete = "select num_object as notice_id from index_concept where type_object=1 and num_concept in (" . implode(",", $infos['objects']['authority_concept']) . ")";
                    if (count($notices_ids)) {
                        $requete.= " and num_object in (" . implode(",", $notices_ids) . ")";
                    }
                }
                $result = pmb_mysql_query($requete, $dbh);
                $notice_ids = array();
                while ($row = pmb_mysql_fetch_object($result)) {
                    $notice_ids[] = $row->notice_id;
                }
                $infos['objects']['record'] = $notice_ids;
            }
            $informations[] = $infos;
        }
        return $informations;
    }

    public function have_results() {
        $have_results = false;
        foreach ($this->models as $model) {
            $have_results = $model->have_results();
            if ($have_results) {
                break;
            }
        }
        return $have_results;
    }

    public function set_mode($mode) {
        $this->mode = $mode;
    }

    public function get_mode() {
        return $this->mode;
    }
}

// end of map_model