<?php
/* -----------------------------------------------------------------------------
  Plugin     : GMaps
  Author     : Grum
    email    : grum@piwigo.org
    website  : http://photos.grum.fr

    << May the Little SpaceFrog be with you ! >>
  ------------------------------------------------------------------------------
  See main.inc.php for release information

  GMaps_PIP : classe to manage plugin public pages

  --------------------------------------------------------------------------- */

include_once('gmaps_root.class.inc.php');

class GMaps_PIP extends GMaps_root
{
  protected $maps = array(); //list of maps
  protected $category=array(
    'id' => 0,
    'bounds' => array(
      'N' => -90,
      'S' => 90,
      'E' => -180,
      'W' => 180
    ),
    'icon' => array(
      'style' => true,
      'file' => '',
      'width' => -1,
      'height' => -1
    )
  );
  protected $picture=array(
    'geolocated' => false,
    'coords' => array('lat' => 0, 'lng' => 0),
    'content' => array(
      'I' => array(), // icon display mode
      'M' => array(), // meta display mode
    ),
    'properties' => array(),
    'icon' => array(
      'style' => true,
      'file' => '',
      'width' => -1,
      'height' => -1
      )
  );
  protected $css2;

  public function __construct($prefixeTable, $filelocation)
  {
    parent::__construct($prefixeTable, $filelocation);
    $this->css2 = new GPCCss(dirname($this->getFileLocation()).'/'.$this->getPluginNameFiles()."2.css");
    $this->loadConfig();
    $this->initEvents();
    $this->load_lang();
  }

  public function __destruct()
  {
    unset($maps);
    unset($picture);
    parent::__destruct();
  }

  /*
    load language file
  */
  public function load_lang()
  {
    global $lang;

    load_language('plugin.lang', GMAPS_PATH);
  }

  /*
    initialize events call for the plugin
  */
  public function initEvents()
  {
    parent::initEvents();

    add_event_handler('loc_begin_index', array(&$this, 'displayCategoryPageMap'));
    add_event_handler('loc_begin_picture', array(&$this, 'displayPicturePageMap'), 55);
    add_event_handler('amd_jpegMD_loaded', array(&$this, 'preparePictureMaps'));
    add_event_handler('loc_end_page_header', array(&$this->css2, 'applyCSS'));
  }


  /* -------------------------------------------------------------------------
    FUNCTIONS TO MANAGE GMAPS
  ------------------------------------------------------------------------- */

  /**
   * this function display the map on the category page
   */
  public function displayCategoryPageMap()
  {
    global $page, $prefixeTable, $template, $user, $conf;

    if($page['section']=='categories')
    {
      if(isset($page['category']))
      {
        $this->category['id']=$page['category']['id'];
        $this->buildMapList($page['category']['id'], 'C');
        $sqlCatRestrict="AND FIND_IN_SET(".$page['category']['id'].", pct.uppercats)!=0";
      }
      else
      {
        $this->category['id']=0;
        $this->buildMapList(0, 'C');
        $sqlCatRestrict="";
      }

      if(count($this->maps)>0)
      {
        $scripts=array();

        // check if there is picture with gps tag in the selected category
        $sql="SELECT paut.tagId, MAX(CAST(pait.value AS DECIMAL(20,17))) AS maxValue, MIN(CAST(pait.value AS DECIMAL(20,17))) AS minValue
              FROM (((".USER_CACHE_CATEGORIES_TABLE." pucc
                LEFT JOIN ".CATEGORIES_TABLE." pct ON pucc.cat_id = pct.id)
                LEFT JOIN ".IMAGE_CATEGORY_TABLE." pic ON pic.category_id = pucc.cat_id)
                LEFT JOIN ".$prefixeTable."amd_images_tags pait ON pait.imageId = pic.image_id)
                LEFT JOIN ".$prefixeTable."amd_used_tags paut ON pait.numId = paut.numId
              WHERE pucc.user_id = '".$user['id']."'
               AND (paut.tagId = 'magic.GPS.LatitudeNum' OR paut.tagId = 'magic.GPS.LongitudeNum')
               AND pic.image_id IS NOT NULL
               $sqlCatRestrict
               GROUP BY paut.tagId";

        $result=pwg_query($sql);
        if($result)
        {
          $nb=0;
          while($row=pwg_db_fetch_assoc($result))
          {
            switch($row['tagId'])
            {
              case 'magic.GPS.LatitudeNum':
                $this->category['bounds']['N']=$row['maxValue'];
                $this->category['bounds']['S']=$row['minValue'];
                break;
              case 'magic.GPS.LongitudeNum':
                $this->category['bounds']['E']=$row['maxValue'];
                $this->category['bounds']['W']=$row['minValue'];
                break;
            }
            $nb++;
          }

          if($nb>0)
          {
            /*
             * prepare js script for each map
             */

            foreach($this->maps as $keyMap => $map)
            {
              $scripts[]="
              {
                id:'iGMapsIcon',
                zoomLevel:".$map['zoomLevel'].",
                marker:true,
                mapType:'".$map['mapType']."',
                mapTypeControl:'".$map['mapTypeControl']."',
                navigationControl:'".$map['navigationControl']."',
                scaleControl:'".$map['scaleControl']."',
                kmlFileUrl:'".$map['kmlFileUrl']."',
                displayType:'".$map['displayType']."',
                sizeMode:'".$map['sizeMode']."',
                title:'".addslashes( ($map['title']=='')?l10n('gmaps_geolocation'):$map['title']  )."',
                markers:[],
                fitToBounds:true
              }";

              preg_match('/^i(\d+)x(\d+).*/i', basename($map['icon']), $result);
              $this->category['icon']['iconStyle']=$map['iconStyle'];
              $this->category['icon']['file']=$map['icon'];
              $this->category['icon']['width']=isset($result[1])?$result[1]:-1;
              $this->category['icon']['height']=isset($result[2])?$result[2]:-1;
            }


            $template->assign('maps', $this->maps);
            $template->set_filename('gmapsCatMap',
                        dirname($this->getFileLocation()).'/templates/gmaps_category.tpl');
            $template->append('footer_elements', $template->parse('gmapsCatMap', true), false);

            if(is_array($this->category['icon']))
            {
              $template->assign('mapIcon', $this->category['icon']);
              $template->set_filename('gmapsIconButton',
                          dirname($this->getFileLocation()).'/templates/gmaps_category_iconbutton.tpl');
              $template->concat('PLUGIN_INDEX_ACTIONS', $template->parse('gmapsIconButton', true), false);
              $template->assign('mapIcon');
            }


            $template->append('head_elements',
  "<script type=\"text/javascript\">
  gmaps =
    {
      lang:{
        boundmap:'".l10n('gmaps_i_boundmap')."',
        boundkml:'".l10n('gmaps_i_boundkml')."'
      },
      requestId:'',
      categoryId:".$this->category['id'].",
      bounds:
        {
          north:".$this->category['bounds']['N'].",
          south:".$this->category['bounds']['S'].",
          east:".$this->category['bounds']['E'].",
          west:".$this->category['bounds']['W']."
        },
      maps:
      [".implode(',', $scripts)."],
    }
  </script>", false);

          }
        }
      }
    }
  }


  /**
   * this function display the map on the picture page
   *
   * the 'amd_jpegMD_loaded' event is triggered before the 'loc_begin_picture'
   * event so, when this function is called the $this->picture var was already
   * initialized
   */
  public function displayPicturePageMap()
  {
    global $page, $template;

    if($this->picture['geolocated']==false) return(false);

    if(count($this->picture['content']['MP'])>0)
    {
      // there is maps in meta display mode
      $template->set_filename('gmapsMeta',
                  dirname($this->getFileLocation()).'/templates/gmaps_picture_meta.tpl');
      $template->assign('maps', $this->picture['content']['MP']);

      $metadata=array
        (
          'TITLE' => l10n('gmaps_geolocation'),
          'lines' =>
            array(
              /* <!--rawContent-->  is a trick to display raw data in tabs
               * for the gally template
               *
               * on the default template, the displayed content is done
               * normally
               */
              '<!--rawContent-->' => $template->parse('gmapsMeta', true)
            )
        );
      $template->append('metadata', $metadata, false);
    }

    if(count($this->picture['content']['IP'])>0)
    {
      // there is maps in icon display mode
      $template->assign('map', $this->picture['content']['IP'][0]);
      $template->assign('mapIcon', $this->picture['icon']);

      $template->set_filename('gmapsIconMap',
                  dirname($this->getFileLocation()).'/templates/gmaps_picture_icon.tpl');
      $template->append('footer_elements', $template->parse('gmapsIconMap', true), false);

      $template->set_filename('gmapsIconButton',
                  dirname($this->getFileLocation()).'/templates/gmaps_picture_iconbutton.tpl');
      $template->concat('PLUGIN_PICTURE_ACTIONS',  $template->parse('gmapsIconButton', true), false);
    }

    if(count($this->picture['properties'])>0)
    {
      $template->append('head_elements',
"<script type=\"text/javascript\">
  gmaps =
    {
      lang:{
        centermap:'".l10n('gmaps_i_centermap')."',
        boundkml:'".l10n('gmaps_i_boundkml')."'
      },
      coords:
      {
        latitude:'".$this->picture['coords']['lat']."',
        longitude:'".$this->picture['coords']['lng']."',
      },
      maps:
      [".implode(',', $this->picture['properties'])."],
    }
</script>", false);
    }
  }


  /**
   * prepare the maps for the picture page
   *
   * this function is called when the plugin AdvancedMetadata has finished to
   * read the metadata ; if picture is not geolocated, there is no map to display
   *
   * @param JpegMetadata $jpegMD : a JpegMetadata object
   */
  public function preparePictureMaps($jpegMD)
  {
    global $template, $page;

    if(is_null($jpegMD->getTag('magic.GPS.LatitudeNum')) or
       is_null($jpegMD->getTag('magic.GPS.LongitudeNum')) or
       $page['section']!='categories') return(false);


    $this->picture['geolocated']=true;
    $this->picture['coords']['lat']=$jpegMD->getTag('magic.GPS.LatitudeNum')->getValue();
    $this->picture['coords']['lng']=$jpegMD->getTag('magic.GPS.LongitudeNum')->getValue();


    if(isset($page['category']))
    {
      $this->buildMapList($page['category']['id'], 'P');
    }
    else
    {
      $this->buildMapList(0, 'P');
    }


    foreach($this->maps as $map)
    {
      if($map['displayType']=='IP')
      {
        preg_match('/^i(\d+)x(\d+).*/i', basename($map['icon']), $result);
        $this->picture['icon']=array(
          'iconStyle' => $map['iconStyle'],
          'file' => $map['icon'],
          'width' => isset($result[1])?$result[1]:-1,
          'height' => isset($result[2])?$result[2]:-1
        );
      }


      $this->picture['content'][$map['displayType']][]=array(
        'id' => $map['id'],
        'width' => $map['width'],
        'height' => $map['height'],
        'style' => $map['style'],
        'mode' => $map['displayType']
      );

      $this->picture['properties'][]="
      {
        id:'iGMaps".(($map['displayType']=='IP')?'Icon':$map['id'])."',
        zoomLevel:".$map['zoomLevel'].",
        marker:true,
        mapType:'".$map['mapType']."',
        mapTypeControl:'".$map['mapTypeControl']."',
        navigationControl:'".$map['navigationControl']."',
        scaleControl:'".$map['scaleControl']."',
        kmlFileUrl:'".$map['kmlFileUrl']."',
        displayType:'".$map['displayType']."',
        sizeMode:'".$map['sizeMode']."',
        title:'".addslashes( ($map['title']=='')?l10n('gmaps_geolocation'):$map['title']  )."'
      }";
    }
  }


} //class

?>