function dt_get_resized_img( $img, $opts, $resize = true, $is_retina = false ) {

   $opts = apply_filters( 'dt_get_resized_img-options', $opts, $img );

   if ( !is_array( $img ) || !$img || (!$img[1] && !$img[2]) ) {
      return false;
   }

   if ( !is_array( $opts ) || !$opts ) {

      if ( !isset( $img[3] ) ) {

         $img[3] = image_hwstring( $img[1], $img[2] );
      }

      return $img;
   }

   if ( !isset($opts['hd_convert']) ) {
      $opts['hd_convert'] = true;
   }

   $defaults = array( 'w' => 0, 'h' => 0 , 'zc' => 1, 'z'   => 1 );
   $opts = wp_parse_args( $opts, $defaults );

   $w = absint( $opts['w'] );
   $h = absint( $opts['h'] );

   // If zoomcropping off and image smaller then required square
   if ( 0 == $opts['zc'] && ( $img[1] <= $w  && $img[2] <= $h ) ) {

      return array( $img[0], $img[1], $img[2], image_hwstring( $img[1], $img[2] ) );

   } else if ( 3 == $opts['zc'] || empty ( $w ) || empty ( $h ) ) {

      if ( 0 == $opts['z'] ) {
         dt_constrain_dim( $img[1], $img[2], $w, $h, true );
      } else {
         $p = absint( $img[1] ) / absint( $img[2] );
         $hx = absint( floor( $w / $p ) ); 
         $wx = absint( floor( $h * $p ) );
         
         if ( empty( $w ) ) {
            $w = $wx;
         } else if ( empty( $h ) ) {
            $h = $hx;
         } else {
            if ( $hx < $h && $wx >= $w ) {
               $h = $hx;
            } else if ( $wx < $w && $hx >= $h ) {
               $w = $wx;
            }
         }
      }

      if ( $img[1] == $w && $img[2] == $h ) {
         return array( $img[0], $img[1], $img[2], image_hwstring( $img[1], $img[2] ) );
      }

   }

   $img_h = $h;
   $img_w = $w;

   if ( $opts['hd_convert'] && $is_retina ) {
      $img_h *= 2;
      $img_w *= 2;
   }

   if ( 1 == $opts['zc'] ) {

      if ( $img[1] >= $img_w && $img[2] >= $img_h ) {

         // do nothing

      } else if ( $img[1] <= $img[2] && $img_w >= $img_h ) { // img=portrait; c=landscape

         $cw_new = $img[1];
         $k = $cw_new/$img_w;
         $ch_new = $k * $img_h;

      } else if ( $img[1] >= $img[2] && $img_w <= $img_h ) { // img=landscape; c=portrait

         $ch_new = $img[2];
         $k = $ch_new/$img_h;
         $cw_new = $k * $img_w;

      } else {

         $kh = $img_h/$img[2];
         $kw = $img_w/$img[1];
         $kres = max( $kh, $kw );
         $ch_new = $img_h/$kres;
         $cw_new = $img_w/$kres;

      }

      if ( isset($ch_new, $cw_new) ) {
         $img_h = absint(floor($ch_new));
         $img_w = absint(floor($cw_new));
      }

   }

   if ( $resize ) {
      $file_url = aq_resize( $img[0], $img_w, $img_h, true, true, false );
   }

   if ( empty( $file_url ) ) {
      $file_url = $img[0];
   }

   return array(
      $file_url,
      $w,
      $h,
      image_hwstring( $w, $h )
   );
}

/**
 * DT master get image function. 
 *
 * @param $opts array
 *
 * @return string
 */
function dt_get_thumb_img( $opts = array() ) {
   global $post;

   $default_image = presscore_get_default_image();

   $defaults = array(
      'wrap'            => '<a %HREF% %CLASS% %TITLE% %CUSTOM%><img %SRC% %IMG_CLASS% %SIZE% %ALT% %IMG_TITLE% /></a>',
      'class'            => '',
      'alt'            => '',
      'title'            => '',
      'custom'           => '',
      'img_class'        => '',
      'img_title'         => '',
      'img_description'   => '',
      'img_caption'      => '',
      'href'            => '',
      'img_meta'         => array(),
      'img_id'         => 0,
      'options'          => array(),
      'default_img'      => $default_image,
      'prop'            => false,
      'echo'            => true
   );
   $opts = wp_parse_args( $opts, $defaults );
   $opts = apply_filters('dt_get_thumb_img-args', $opts);

   // var_dump( $opts['options'] );

   $original_image = null;
   if ( $opts['img_meta'] ) {
      $original_image = $opts['img_meta'];
   } else if ( $opts['img_id'] ) {
      $original_image = wp_get_attachment_image_src( $opts['img_id'], 'full' );
   }

   if ( !$original_image ) {
      $original_image = $opts['default_img'];
   }

   // proportion
   if ( $original_image && !empty($opts['prop']) && ( empty($opts['options']['h']) || empty($opts['options']['w']) ) ) {
      $_prop = $opts['prop'];
      $_img_meta = $original_image;

      if ( $_prop > 1 ) {
         $h = intval(floor($_img_meta[1] / $_prop));
         $w = intval(floor($_prop * $h));
      } else if ( $_prop < 1 ) {
         $w = intval(floor($_prop * $_img_meta[2]));
         $h = intval(floor($w / $_prop));
      } else {
         $w = $h = min($_img_meta[1], $_img_meta[2]);
      }

      if ( !empty($opts['options']['w']) ) {
         $__prop = $h / $w;
         $w = intval($opts['options']['w']);
         $h = intval(floor($__prop * $w));
      } else if ( !empty($opts['options']['h']) ) {
         $__prop = $w / $h;
         $h = intval($opts['options']['h']);
         $w = intval(floor($__prop * $h));
      }

      $opts['options']['w'] = $w;
      $opts['options']['h'] = $h;
   }

   if ( $opts['options'] ) {

      if ( empty( $opts['options']['use_srcset'] ) ) {
         $resized_image = dt_get_resized_img( $original_image, $opts['options'], true, dt_retina_on() && dt_is_hd_device() );
      } else {
         $resized_image = dt_get_resized_img( $original_image, $opts['options'], true, false );
         $resized_image_hd = dt_get_resized_img( $original_image, $opts['options'], true, true );

         $resized_image[0] .= ' 1x, ' . $resized_image_hd[0] .= ' 2x';
      }

   } else {
      $resized_image = $original_image;
   }

   if ( $img_id = absint( $opts['img_id'] ) ) {

      if ( '' === $opts['alt'] ) {
         $opts['alt'] = get_post_meta( $img_id, '_wp_attachment_image_alt', true );
      }

      if ( '' === $opts['img_title'] ) {
         $opts['img_title'] = get_the_title( $img_id );
      }
   }

   $class = empty( $opts['class'] ) ? '' : 'class="' . esc_attr( trim($opts['class']) ) . '"';
   $title = empty( $opts['title'] ) ? '' : 'title="' . esc_attr( trim($opts['title']) ) . '"';
   $img_title = empty( $opts['img_title'] ) ? '' : 'title="' . esc_attr( trim($opts['img_title']) ) . '"';
   $img_class = empty( $opts['img_class'] ) ? '' : 'class="' . esc_attr( trim($opts['img_class']) ) . '"';

   $href = $opts['href'];
   if ( !$href ) {
      $href = $original_image[0];
   }

   $src = $resized_image[0];

   if ( empty( $opts['options']['use_srcset'] ) ) {
      // $src = dt_make_image_src_ssl_friendly( $src );
      $src = str_replace( array(' '), array('%20'), $src );
      $src_att = 'src="' . esc_url( $src ) . '"';
   } else {
      $src_att = 'srcset="' . esc_attr( $src ) . '"';
   }

   if ( empty($resized_image[3]) || !is_string($resized_image[3]) ) {
      $size = image_hwstring($resized_image[1], $resized_image[2]);
   } else {
      $size = $resized_image[3];
   }


   $output = str_replace(
      array(
         '%HREF%',
         '%CLASS%',
         '%TITLE%',
         '%CUSTOM%',
         '%SRC%',
         '%IMG_CLASS%',
         '%SIZE%',
         '%ALT%',
         '%IMG_TITLE%',
         '%RAW_TITLE%',
         '%RAW_ALT%',
         '%RAW_IMG_TITLE%',
         '%RAW_IMG_DESCRIPTION%',
         '%RAW_IMG_CAPTION'
      ),
      array(
         'href="' . esc_url( $href ) . '"',
         $class,
         $title,
         strip_tags( $opts['custom'] ),
         $src_att,
         $img_class,
         $size,
         'alt="' . esc_attr( $opts['alt'] ) . '"',
         $img_title,
         esc_attr( $opts['title'] ),
         esc_attr( $opts['alt'] ),
         esc_attr( $opts['img_title'] ),
         esc_attr( $opts['img_description'] ),
         esc_attr( $opts['img_caption'] )
      ),
      $opts['wrap']
   );

   if ( $opts['echo'] ) {
      echo $output;
      return '';
   }

   return $output;
}

/**
 * Load presscore template.
 *
 * @param $slug string
 * @param $name string
 */
function dt_get_template_part( $slug = '', $name = '' ) {
   if ( empty( $slug ) ) {
      return;
   }

   $dir_base = '/templates/';
   get_template_part( $dir_base . $slug, $name );
}

/**
 * Description here.
 *
 * @param $src string
 *
 * @return string
 *
 * @since presscore 0.1
 */
function dt_get_of_uploaded_image( $src ) {
   if ( ! $src ) {
      return '';
   }

   $uri = $src;
   if ( ! parse_url( $src, PHP_URL_SCHEME ) ) {

      if ( dt_maybe_uploaded_image_url( $src ) ) {

         $uri = site_url( $src );
      } else {

         $uri = PRESSCORE_PRESET_BASE_URI . $src;
      }
   }

   return $uri;
}

function dt_maybe_uploaded_image_url( $url ) {
   $uploads = wp_upload_dir();
   $baseurl = str_replace( site_url(), '', $uploads['baseurl'] );
   $pattern = '/' . trailingslashit( basename( WP_CONTENT_URL ) );
   return ( strpos( $url, $baseurl ) !== false || strpos( $url, $pattern ) !== false );
}

/**
 * Parse str to array with src, width and height
 * expample: image.jpg?w=25&h=45
 *
 * @param $str string
 *
 * @return array
 *
 * @since presscore 0.1
 */
function dt_parse_of_uploaded_image_src ( $str ) {
   if ( empty( $str ) ) {
      return array();
   }

   $res_arr = array();
   $str_arr = explode( '?', $str );

   $res_arr[0] = dt_get_of_uploaded_image( current( $str_arr ) );

   // if no additional arguments specified
   if ( ! isset( $str_arr[1] ) ) {
      return array();
   } 

   $args_arr = array();
   wp_parse_str( $str_arr[1], $args_arr );

   if ( isset( $args_arr['w'] ) && isset( $args_arr['h'] ) ) {

      $res_arr[1] = intval( $args_arr['w'] );
      $res_arr[2] = intval( $args_arr['h'] );
   } else {

      return array();
   }

   return $res_arr;
}