<?php
/* -----------------------------------------------------------------------------
  Plugin     : ColorStat
  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

  CStat_root : common classe for admin and public classes

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

  if(!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');


  include_once('cstat_colorstat.class.inc.php');
  include_once(PHPWG_PLUGINS_PATH.'GrumPluginClasses/classes/CommonPlugin.class.inc.php');
  include_once(PHPWG_PLUGINS_PATH.'GrumPluginClasses/classes/GPCCss.class.inc.php');
  include_once(PHPWG_PLUGINS_PATH.'GrumPluginClasses/classes/GPCAjax.class.inc.php');

  class CStat_root extends CommonPlugin
  {
    protected $css;   //the css object
    protected $colorTableSize=Array('small' => Array(30,20), 'large' => Array(10,10));

    public function __construct($prefixeTable, $filelocation)
    {
      $this->setPluginName('ColorStat');
      $this->setPluginNameFiles("cstat");
      parent::__construct($prefixeTable, $filelocation);
      $this->section_name=$this->getPluginNameFiles();

      $this->setTablesList(array('images', 'color_table', 'images_colors'));


      $this->css = new GPCCss(dirname($this->getFileLocation()).'/'.$this->getPluginNameFiles().".css");
    }

    public function __destruct()
    {
      unset($this->css);
      parent::__destruct();
    }

    public function initEvents()
    {
      parent::initEvents();
      add_event_handler('blockmanager_register_blocks', array(&$this, 'register_blocks') );
    }

    /*
      menu block management
    */
    public function register_blocks()
    {
    }

    /*
      intialize default values
    */
    public function initConfig()
    {
      //global $user;
      $this->config=array(
        'newInstall' => 'n',
        'analyze_maxTime' => 0.1,
        'analyze_colorTable' => 'small',
        'analyze_pps' => 0,
        'analyze_itemPerRequest' => 10,
        'display_gallery_showColors' => 'n',
        'display_stat_orderType' => 'img',
        'stat_minPct' => 3.5,
      );
    }


    /**
     * return HTML code for a given colorTable
     *
     * @param Array $colorTable : a color table, typically made with the
     *                            ColorStat::getColorTable() function
     * @param Int $size         : size for colorbox in the HTML table
     * @return String : HTML code
     */
    public function htmlColorTable($colorTable, $size=5, $id="", $class="")
    {
      global $template;

      $template->set_filename('color_table_page',
                    dirname($this->getFileLocation()).'/templates/cstat_color_table.tpl');

      $nbHue=count($colorTable);
      $nbStep=count($colorTable[0]);
      $colors=Array();
      for($step=0;$step<$nbStep;$step++)
      {
        $row=Array();
        for($hue=0;$hue<$nbHue;$hue++)
        {

          if($colorTable[$hue][$step] instanceof HSV)
          {
            $row[]=Array('color' => $colorTable[$hue][$step]->getRGB()->getHexString(), 'pct' => "", 'num' => "");
          }
          elseif(is_array($colorTable[$hue][$step]))
          {
            $row[]=Array(
              'color' => (array_key_exists('color', $colorTable[$hue][$step]))?$colorTable[$hue][$step]['color']:"",
              'pct' => (array_key_exists('pct', $colorTable[$hue][$step]))?$colorTable[$hue][$step]['pct']:"",
              'num' => (array_key_exists('num', $colorTable[$hue][$step]))?$colorTable[$hue][$step]['num']:"",
            );
          }
          else
          {
            $row[]=Array('color' => $colorTable[$hue][$step], 'pct' => "", 'num' => "");
          }
        }
        $colors[]=$row;
        unset($row);
      }

      $data=array(
        'colorTable' => $colors,
        'size' => $size,
        'id' => $id,
        'class' => $class
      );

      $template->assign('data', $data);
      unset($data);

      return($template->parse('color_table_page', true));
    }

    /**
     * return HTML code for a given colors list
     *
     * @param Array $colors : list of colors
     * @param Int $size     : size for colorbox in the HTML table
     * @return String : HTML code
     */
    public function htmlColorList($colorList, $split=8, $size=5, $id="", $class="", $br='<br>')
    {
      global $template;

      $template->set_filename('color_table_page',
                    dirname($this->getFileLocation()).'/templates/cstat_color_table.tpl');

      $colors=Array();

      $row=0;
      $num=0;
      foreach($colorList as $key => $val)
      {
        $colors[$row][]=Array('color' => $key, 'pct' => $val['pct'], 'num' => "");
        $num++;
        if($num==$split)
        {
          $num=0;
          $row++;
        }
      }

      $data=array(
        'colorTable' => $colors,
        'size' => $size,
        'id' => $id,
        'class' => $class,
        'br' => $br,
      );

      $template->assign('data', $data);
      unset($data);

      return($template->parse('color_table_page', true));
    }

    /**
     * returns an array of colors & colors percent of an image
     *
     * @param Integer $imageId : id of the image
     * @return Array('colors' => Array(), 'colors_pct' => Array())
     */
    public function getImageColors($imageId)
    {
      $returned=Array(
        'colors' => Array(),
        'colors_pct' => Array(),
      );

      $sql="SELECT colors, colors_pct
            FROM ".$this->tables['images']."
            WHERE image_id='".$imageId."'";
      $result=pwg_query($sql);
      if($result)
      {
        while($row=pwg_db_fetch_assoc($result))
        {
          $returned['colors']=explode(',', $row['colors']);
          $returned['colors_pct']=explode(',', $row['colors_pct']);
        }
      }
      return($returned);
    }


    /**
     *  return all HTML&JS code necessary to display a dialogbox to choose
     *  colors
     */
    protected function dialogBoxColor()
    {
      global $template;

      $template->set_filename('colors_choose',
                    dirname($this->getFileLocation()).'/templates/cstat_dialog_colors_choose.tpl');

      $colorTable=$this->getColorTableWithStat();

      $datas=Array(
        'colorTable' => $this->htmlColorTable(
                          $colorTable,
                          ($this->config['analyze_colorTable']=='small')?16:8,
                          "",
                          "color0px"
                        ),
        //'urlRequest' => $this->getAdminLink(),
      );

      $template->assign('datas', $datas);
      unset($data);

      return($template->parse('colors_choose', true));
    }


    /**
     * return a color table with stat on color
     *
     * @return Array : a color table with statistics on colors
     */
    protected function getColorTableWithStat()
    {
      $generalStats=$this->getGeneralStats();

      $colors=Array();
      $sql="SELECT color_id, num_images, num_pixels
            FROM ".$this->tables['color_table']."
            WHERE num_images > 0
            ORDER BY color_id ";
      $result=pwg_query($sql);
      if($result)
      {
        while($row=pwg_db_fetch_assoc($result))
        {
          $colors[$row['color_id']]=Array('num_images' => $row['num_images'], 'num_pixels' => $row['num_pixels']);
        }
      }

      $colorTable=ColorStat::getColorTable(
        $this->colorTableSize[$this->config['analyze_colorTable']][0],
        $this->colorTableSize[$this->config['analyze_colorTable']][1]
      );
      foreach($colorTable as $key=>$val)
      {
        foreach($val as $key2=>$val2)
        {
          $rgb=$val2->getRGB()->getHexString();
          $colorTable[$key][$key2]=Array(
            'color' => $rgb,
            'pct'   => '', //(array_key_exists($rgb, $colors))?sprintf("%.2f", round(100*$colors[$rgb]['num_pixels']/$generalStats['pixelsAnalyzedSum'],2)):"",
            'num'   => (array_key_exists($rgb, $colors))?$colors[$rgb]['num_images']:"",
          );
        }
      }

      unset($colors);
      return($colorTable);
    }


    /* ---------------------------------------------------------------------------
      ajax functions
    --------------------------------------------------------------------------- */


  } //class

?>