<?php

/**

 * Author: Rob

 * Date: 6/24/13

 * Time: 11:31 AM

 */



$p_dir;

$s_order;



class FilemanagerModel {

    ////////////////////////////////////////////////////////////////////////////////////////

    // Events                                                                             //

    ////////////////////////////////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////////////////////////////////

    // Constants                                                                          //

    ////////////////////////////////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////////////////////////////////

    // Variables                                                                          //

    ////////////////////////////////////////////////////////////////////////////////////////

    private $controller;





    ////////////////////////////////////////////////////////////////////////////////////////

    // Constructor & Destructor                                                           //

    ////////////////////////////////////////////////////////////////////////////////////////

    public function __construct($controller) {

      $this->controller = $controller;

    }





    ////////////////////////////////////////////////////////////////////////////////////////

    // Public Methods                                                                     //

    ////////////////////////////////////////////////////////////////////////////////////////

    public function get_file_manager_data() {

      $session_data = array();

      $session_data['sort_by'] = $this->get_from_session('sort_by', 'name');

      $session_data['sort_order'] = $this->get_from_session('sort_order', 'asc');

      $session_data['items_view'] = $this->get_from_session('items_view', 'thumbs');

      $session_data['clipboard_task'] = $this->get_from_session('clipboard_task', '');

      $session_data['clipboard_files'] = $this->get_from_session('clipboard_files', '');

      $session_data['clipboard_src'] = $this->get_from_session('clipboard_src', '');

      $session_data['clipboard_dest'] = $this->get_from_session('clipboard_dest', '');



      $data = array();

      $data['session_data'] = $session_data;

      $data['path_components'] = $this->get_path_components();

      $data['dir'] = (isset($_REQUEST['dir']) ? esc_html($_REQUEST['dir']) : '');

      $data['files'] = $this->get_files($session_data['sort_by'], $session_data['sort_order']);

      $data['media_library_files'] = ($this->controller->get_options_data()->enable_ML_import ? $this->get_media_library_files($session_data['sort_by'], $session_data['sort_order']) : array());

      $data['extensions'] = (isset($_REQUEST['extensions']) ? esc_html($_REQUEST['extensions']) : '');

      $data['callback'] = (isset($_REQUEST['callback']) ? esc_html($_REQUEST['callback']) : '');



      return $data;

    }





    ////////////////////////////////////////////////////////////////////////////////////////

    // Getters & Setters                                                                  //

    ////////////////////////////////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////////////////////////////////

    // Private Methods                                                                    //

    ////////////////////////////////////////////////////////////////////////////////////////

    private function get_from_session($key, $default) {

      // if (isset($_SESSION[$key])) {

      // if (isset($_REQUEST[$key])) {

        if (isset($_REQUEST[$key])) {

          // $_SESSION[$key] = $_REQUEST[$key];

          $_REQUEST[$key] = stripslashes($_REQUEST[$key]);

        }

        else {

          // $_SESSION[$key] = $default;

          $_REQUEST[$key] = stripslashes($default);

        }

        // return $_SESSION[$key];

        return esc_html(stripslashes($_REQUEST[$key]));

      // }

      // return '';

    }



    public function get_path_components() {

      $dir_names = explode('/', (isset($_REQUEST['dir']) ? esc_html($_REQUEST['dir']) : ''));

      $path = '';



      $components = array();

      $component = array();

      global $WD_BWG_UPLOAD_DIR;

      $component['name'] = $WD_BWG_UPLOAD_DIR;

      $component['path'] = $path;

      $components[] = $component;

      for ($i = 0; $i < count($dir_names); $i++) {

        $dir_name = $dir_names[$i];

        if ($dir_name == '') {

            continue;

        }

        $path .= (($path == '') ? $dir_name : '/' . $dir_name);

        $component = array();

        $component['name'] = $dir_name;

        $component['path'] = $path;

        $components[] = $component;

      }

      return $components;

    }



    function get_files($sort_by, $sort_order) {

      $icons_dir_path = WD_BWG_DIR . '/filemanager/images/file_icons';

      $icons_dir_url = WD_BWG_URL . '/filemanager/images/file_icons';

      $valid_types = explode(',', isset($_REQUEST['extensions']) ? strtolower(esc_html($_REQUEST['extensions'])) : '*');

      $parent_dir = $this->controller->get_uploads_dir() . (isset($_REQUEST['dir']) ? '/' . esc_html($_REQUEST['dir']) : '');

      $parent_dir_url = $this->controller->get_uploads_url() . (isset($_REQUEST['dir']) ? '/' . esc_html($_REQUEST['dir']) : '');





      $file_names = $this->get_sorted_file_names($parent_dir, $sort_by, $sort_order);



      $dirs = array();

      $files = array();

      foreach ($file_names as $file_name) {

        if (($file_name == '.') || ($file_name == '..') || ($file_name == 'thumb') || ($file_name == '.original')) {

          continue;

        }

        if (is_dir($parent_dir . '/' . $file_name) == TRUE) {

          $file = array();

          $file['is_dir'] = TRUE;

          $file['name'] = $file_name;

          $file['filename'] = $file_name;

          $file['type'] = '';

          $file['thumb'] = $icons_dir_url . '/dir.png';

          $file['icon'] = $icons_dir_url . '/dir.png';

          $file['size'] = '';

          $file['date_modified'] = '';

          $file['resolution'] = '';

          $dirs[] = $file;

        }

        else {

          $file = array();

          $file['is_dir'] = FALSE;

          $file['name'] = $file_name;

          $file['filename'] = substr($file_name, 0, strrpos($file_name, '.'));

          $file_extension = explode('.', $file_name);

          $file['type'] = strtolower(end($file_extension));

          $icon = $icons_dir_url . '/' . $file['type'] . '.png';

          if (file_exists($icons_dir_path . '/' . $file['type'] . '.png') == FALSE) {

            $icon = $icons_dir_url . '/' . '_blank.png';

          }

          $file['thumb'] = $this->is_img($file['type']) ? $parent_dir_url . '/thumb/' . $file_name : $icon;

          $file['icon'] = $icon;

          if (($valid_types[0] != '*') && (in_array($file['type'], $valid_types) == FALSE)) {

            continue;

          }

          $file_size_kb = (int)(filesize($parent_dir . '/' . $file_name) / 1024);

          // $file_size_mb = (int)($file_size_kb / 1024);

          // $file['size'] = $file_size_kb < 1024 ? (string)$file_size_kb . 'KB' : (string)$file_size_mb . 'MB';

          $file['size'] = $file_size_kb . ' KB';

          $file['date_modified'] = date('d F Y, H:i', filemtime($parent_dir . '/' . $file_name));

          $image_info = getimagesize(htmlspecialchars_decode($parent_dir . '/' . $file_name, ENT_COMPAT | ENT_QUOTES));

          $file['resolution'] = $this->is_img($file['type']) ? $image_info[0]  . ' x ' . $image_info[1] . ' px' : '';

          $exif = $this->bwg_wp_read_image_metadata( $parent_dir . '/.original/' . $file_name );

          $file['credit'] = $exif['credit'];          

          $file['aperture'] = $exif['aperture'];

          $file['camera'] = $exif['camera'];

          $file['caption'] = $exif['caption'];

          $file['iso'] = $exif['iso'];

          $file['orientation'] = $exif['orientation'];

          $file['copyright'] = $exif['copyright'];

          $files[] = $file;

        }

      }



      $result = $sort_order == 'asc' ? array_merge($dirs, $files) : array_merge($files, $dirs);

      return $result;

    }

    

    function get_media_library_files($sort_by, $sort_order) {

      $icons_dir_path = WD_BWG_DIR . '/filemanager/images/file_icons';

      $icons_dir_url = WD_BWG_URL . '/filemanager/images/file_icons';

      $valid_types = explode(',', isset($_REQUEST['extensions']) ? strtolower(esc_html($_REQUEST['extensions'])) : '*');

      $upload_dir = wp_upload_dir();

      $parent_dir = $upload_dir['basedir'];

      $parent_dir_url = $upload_dir['baseurl'];



      $query_images_args = array(

          'post_type' => 'attachment', 'post_mime_type' =>'image', 'post_status' => 'inherit', 'posts_per_page' => -1,

      );



      $query_images = new WP_Query( $query_images_args );



      $files = array();

      $upload_dir = wp_upload_dir();



      foreach ($query_images->posts as $image) {

        $file_meta = wp_get_attachment_metadata($image->ID);

        if (isset($file_meta['file'])) {

          $file = array();

          $file['is_dir'] = FALSE;

          $file_name_array = explode('/', $file_meta['file']);

          $file_name = end($file_name_array);

          $file['name'] = $file_name;

          $file['path'] = $file_meta['file'];

          $file['filename'] = substr($file_name, 0, strrpos($file_name, '.'));

          $file_type_array = explode('.', $file_name);

          $file['type'] = strtolower(end($file_type_array));

          // $file['thumb'] = wp_get_attachment_thumb_url($image->ID);

          if (!empty($file_meta['sizes']) && $file_meta['sizes']['thumbnail']['file']) {

            $file_pos = strrpos($file_meta['file'], '/');

            $sub_folder = substr($file_meta['file'], 0, $file_pos); 

            $file['thumb'] = $upload_dir['baseurl'] . '/' . $sub_folder . '/' . $file_meta['sizes']['thumbnail']['file'];

          }

          else {

            $file['thumb'] = $upload_dir['baseurl'] . '/' . $file_meta['file'];

          }

          $file['icon'] = $file['thumb'];

          if (($valid_types[0] != '*') && (in_array($file['type'], $valid_types) == FALSE)) {

            continue;

          }

          $file_size_kb = (int)(@filesize($parent_dir . '/' . $file_meta['file']) / 1024);

          if (!$file_size_kb) continue;

          $file['size'] = $file_size_kb . ' KB';

          $file['date_modified'] = date('d F Y, H:i', filemtime($parent_dir . '/' . $file_meta['file']));

          // $image_info = getimagesize(htmlspecialchars_decode($parent_dir . '/' . $file_meta['file'], ENT_COMPAT | ENT_QUOTES));

          $file['resolution'] = $this->is_img($file['type']) ? $file_meta['width']  . ' x ' . $file_meta['height'] . ' px' : '';

          $exif = $this->bwg_wp_read_image_metadata($parent_dir . '/.original/' . $file_name);          

          $file['credit'] = $exif['credit'];

          $file['aperture'] = $exif['aperture'];

          $file['camera'] = $exif['camera'];

          $file['caption'] = $exif['caption'];

          $file['iso'] = $exif['iso'];

          $file['orientation'] = $exif['orientation'];

          $file['copyright'] = $exif['copyright'];

          $files[] = $file;

        }

      }

      return $files;

    }



    private function bwg_wp_read_image_metadata( $file ) {

      if (!file_exists($file)) {

        return false;

      }

      list( , , $sourceImageType ) = getimagesize($file);

      $meta = array(

        'aperture' => 0,

        'credit' => '',

        'camera' => '',

        'caption' => '',

        'created_timestamp' => 0,

        'copyright' => '',

        'focal_length' => 0,

        'iso' => 0,

        'shutter_speed' => 0,

        'title' => '',

        'orientation' => 0,

      );	

      if ( is_callable( 'iptcparse' ) ) {

        getimagesize( $file, $info );

        if ( ! empty( $info['APP13'] ) ) {

          $iptc = iptcparse( $info['APP13'] );			

          if ( ! empty( $iptc['2#105'][0] ) ) {

            $meta['title'] = trim( $iptc['2#105'][0] );			

          } elseif ( ! empty( $iptc['2#005'][0] ) ) {

            $meta['title'] = trim( $iptc['2#005'][0] );

          }

          if ( ! empty( $iptc['2#120'][0] ) ) { 

            $caption = trim( $iptc['2#120'][0] );

            if ( empty( $meta['title'] ) ) {

              mbstring_binary_safe_encoding();

              $caption_length = strlen( $caption );

              reset_mbstring_encoding();					

              if ( $caption_length < 80 ) {

                $meta['title'] = $caption;

              } else {

                $meta['caption'] = $caption;

              }

            } elseif ( $caption != $meta['title'] ) {

              $meta['caption'] = $caption;

            }

          }

          if ( ! empty( $iptc['2#110'][0] ) ) {

            $meta['credit'] = trim( $iptc['2#110'][0] );

          }

          elseif ( ! empty( $iptc['2#080'][0] ) ) {

            $meta['credit'] = trim( $iptc['2#080'][0] );

          }

          if ( ! empty( $iptc['2#055'][0] ) and ! empty( $iptc['2#060'][0] ) ) {

            $meta['created_timestamp'] = strtotime( $iptc['2#055'][0] . ' ' . $iptc['2#060'][0] );

          }

          if ( ! empty( $iptc['2#116'][0] ) ) {

            $meta['copyright'] = trim( $iptc['2#116'][0] );

          }

        }

      }

      if ( is_callable( 'exif_read_data' ) && in_array( $sourceImageType, apply_filters( 'wp_read_image_metadata_types', array( IMAGETYPE_JPEG, IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM ) ) ) ) {

        $exif = @exif_read_data( $file );

        if ( empty( $meta['title'] ) && ! empty( $exif['Title'] ) ) {

          $meta['title'] = trim( $exif['Title'] );

        }

        if ( ! empty( $exif['ImageDescription'] ) ) {

          mbstring_binary_safe_encoding();

          $description_length = strlen( $exif['ImageDescription'] );

          reset_mbstring_encoding();

          if ( empty( $meta['title'] ) && $description_length < 80 ) {				

            $meta['title'] = trim( $exif['ImageDescription'] );

            if ( empty( $meta['caption'] ) && ! empty( $exif['COMPUTED']['UserComment'] ) && trim( $exif['COMPUTED']['UserComment'] ) != $meta['title'] ) {

              $meta['caption'] = trim( $exif['COMPUTED']['UserComment'] );

            }

          } elseif ( empty( $meta['caption'] ) && trim( $exif['ImageDescription'] ) != $meta['title'] ) {

            $meta['caption'] = trim( $exif['ImageDescription'] );

          }

        } elseif ( empty( $meta['caption'] ) && ! empty( $exif['Comments'] ) && trim( $exif['Comments'] ) != $meta['title'] ) {

          $meta['caption'] = trim( $exif['Comments'] );

        }

        if ( empty( $meta['credit'] ) ) {

          if ( ! empty( $exif['Artist'] ) ) {

            $meta['credit'] = trim( $exif['Artist'] );

          } elseif ( ! empty($exif['Author'] ) ) {

            $meta['credit'] = trim( $exif['Author'] );

          }

        }

        if ( empty( $meta['copyright'] ) && ! empty( $exif['Copyright'] ) ) {

          $meta['copyright'] = trim( $exif['Copyright'] );

        }

        if ( ! empty( $exif['FNumber'] ) ) {

          $meta['aperture'] = round( wp_exif_frac2dec( $exif['FNumber'] ), 2 );

        }

        if ( ! empty( $exif['Model'] ) ) {

          $meta['camera'] = trim( $exif['Model'] );

        }

        if ( empty( $meta['created_timestamp'] ) && ! empty( $exif['DateTimeDigitized'] ) ) {

          $meta['created_timestamp'] = wp_exif_date2ts( $exif['DateTimeDigitized'] );

        }

        if ( ! empty( $exif['FocalLength'] ) ) {

          $meta['focal_length'] = (string) wp_exif_frac2dec( $exif['FocalLength'] );

        }

        if ( ! empty( $exif['ISOSpeedRatings'] ) ) {

          $meta['iso'] = is_array( $exif['ISOSpeedRatings'] ) ? reset( $exif['ISOSpeedRatings'] ) : $exif['ISOSpeedRatings'];

          $meta['iso'] = trim( $meta['iso'] );

        }

        if ( ! empty( $exif['ExposureTime'] ) ) {

          $meta['shutter_speed'] = (string) wp_exif_frac2dec( $exif['ExposureTime'] );

        }

        if ( ! empty( $exif['Orientation'] ) ) {

          $meta['orientation'] = $exif['Orientation'];

        }

      }

      foreach ( array( 'title', 'caption', 'credit', 'copyright', 'camera', 'iso' ) as $key ) {

        if ( $meta[ $key ] && ! seems_utf8( $meta[ $key ] ) ) {

          $meta[ $key ] = utf8_encode( $meta[ $key ] );

        }

      }

      foreach ( $meta as &$value ) {

        if ( is_string( $value ) ) {

          $value = wp_kses_post( $value );

        }

      }

      return $meta;

    }



    private function get_sorted_file_names($parent_dir, $sort_by, $sort_order) {

      $file_names = scandir($parent_dir);



      global $p_dir;

      global $s_order;



      $p_dir = $parent_dir;

      $s_order = $sort_order;



      function sort_by_size ($a, $b) {

        global $p_dir;

        global $s_order;



        $size_of_a = filesize($p_dir . '/' . $a);

        $size_of_b = filesize($p_dir . '/' . $b);

        return $s_order == 'asc' ? $size_of_a > $size_of_b : $size_of_a < $size_of_b;

      }



      function sort_by_date($a, $b) {

        global $p_dir;

        global $s_order;



        $m_time_a = filemtime($p_dir . '/' . $a);

        $m_time_b = filemtime($p_dir . '/' . $b);

        return $s_order == 'asc' ? $m_time_a > $m_time_b : $m_time_a < $m_time_b;

      }



      switch ($sort_by) {

        case 'name':

          natcasesort($file_names);

          if ($sort_order == 'desc') {

              $file_names = array_reverse($file_names);

          }

          break;

        case 'size':

          usort($file_names, 'sort_by_size');

          break;

        case 'date_modified':

          usort($file_names, 'sort_by_date');

          break;

      }

      return $file_names;

    }



    private function is_img($file_type) {

      switch ($file_type) {

        case 'jpg':

        case 'jpeg':

        case 'png':

        case 'bmp':

        case 'gif':

          return true;

          break;

      }

      return false;

    }





    ////////////////////////////////////////////////////////////////////////////////////////

    // Listeners                                                                          //

    ////////////////////////////////////////////////////////////////////////////////////////

}