<?php



#[AllowDynamicProperties]
abstract class WP_Image_Editor {
	protected $file              = null;
	protected $size              = null;
	protected $mime_type         = null;
	protected $output_mime_type  = null;
	protected $default_mime_type = 'image/jpeg';
	protected $quality           = false;

	// Deprecated since 5.8.1. See get_default_quality() below.
	protected $default_quality = 82;

	
	public function __construct( $file ) {
		$this->file = $file;
	}

	
	public static function test( $args = array() ) {
		return false;
	}

	
	public static function supports_mime_type( $mime_type ) {
		return false;
	}

	
	abstract public function load();

	
	abstract public function save( $destfilename = null, $mime_type = null );

	
	abstract public function resize( $max_w, $max_h, $crop = false );

	
	abstract public function multi_resize( $sizes );

	
	abstract public function crop( $src_x, $src_y, $src_w, $src_h, $dst_w = null, $dst_h = null, $src_abs = false );

	
	abstract public function rotate( $angle );

	
	abstract public function flip( $horz, $vert );

	
	abstract public function stream( $mime_type = null );

	
	public function get_size() {
		return $this->size;
	}

	
	protected function update_size( $width = null, $height = null ) {
		$this->size = array(
			'width'  => (int) $width,
			'height' => (int) $height,
		);
		return true;
	}

	
	public function get_quality() {
		if ( ! $this->quality ) {
			$this->set_quality();
		}

		return $this->quality;
	}

	
	public function set_quality( $quality = null, $dims = array() ) {
		// Use the output mime type if present. If not, fall back to the input/initial mime type.
		$mime_type = ! empty( $this->output_mime_type ) ? $this->output_mime_type : $this->mime_type;
		// Get the default quality setting for the mime type.
		$default_quality = $this->get_default_quality( $mime_type );

		if ( null === $quality ) {
			
			$quality = apply_filters( 'wp_editor_set_quality', $default_quality, $mime_type, $dims ? $dims : $this->size );

			if ( 'image/jpeg' === $mime_type ) {
				
				$quality = apply_filters( 'jpeg_quality', $quality, 'image_resize' );
			}

			if ( $quality < 0 || $quality > 100 ) {
				$quality = $default_quality;
			}
		}

		// Allow 0, but squash to 1 due to identical images in GD, and for backward compatibility.
		if ( 0 === $quality ) {
			$quality = 1;
		}

		if ( ( $quality >= 1 ) && ( $quality <= 100 ) ) {
			$this->quality = $quality;
			return true;
		} else {
			return new WP_Error( 'invalid_image_quality', __( 'Attempted to set image quality outside of the range [1,100].' ) );
		}
	}

	
	protected function get_default_quality( $mime_type ) {
		switch ( $mime_type ) {
			case 'image/webp':
				$quality = 86;
				break;
			case 'image/jpeg':
			default:
				$quality = $this->default_quality;
		}

		return $quality;
	}

	
	protected function get_output_format( $filename = null, $mime_type = null ) {
		$new_ext = null;

		// By default, assume specified type takes priority.
		if ( $mime_type ) {
			$new_ext = $this->get_extension( $mime_type );
		}

		if ( $filename ) {
			$file_ext  = strtolower( pathinfo( $filename, PATHINFO_EXTENSION ) );
			$file_mime = $this->get_mime_type( $file_ext );
		} else {
			// If no file specified, grab editor's current extension and mime-type.
			$file_ext  = strtolower( pathinfo( $this->file, PATHINFO_EXTENSION ) );
			$file_mime = $this->mime_type;
		}

		/*
		 * Check to see if specified mime-type is the same as type implied by
		 * file extension. If so, prefer extension from file.
		 */
		if ( ! $mime_type || ( $file_mime === $mime_type ) ) {
			$mime_type = $file_mime;
			$new_ext   = $file_ext;
		}

		$output_format = wp_get_image_editor_output_format( $filename, $mime_type );

		if ( isset( $output_format[ $mime_type ] )
			&& $this->supports_mime_type( $output_format[ $mime_type ] )
		) {
			$mime_type = $output_format[ $mime_type ];
			$new_ext   = $this->get_extension( $mime_type );
		}

		/*
		 * Double-check that the mime-type selected is supported by the editor.
		 * If not, choose a default instead.
		 */
		if ( ! $this->supports_mime_type( $mime_type ) ) {
			
			$mime_type = apply_filters( 'image_editor_default_mime_type', $this->default_mime_type );
			$new_ext   = $this->get_extension( $mime_type );
		}

		/*
		 * Ensure both $filename and $new_ext are not empty.
		 * $this->get_extension() returns false on error which would effectively remove the extension
		 * from $filename. That shouldn't happen, files without extensions are not supported.
		 */
		if ( $filename && $new_ext ) {
			$dir = pathinfo( $filename, PATHINFO_DIRNAME );
			$ext = pathinfo( $filename, PATHINFO_EXTENSION );

			$filename = trailingslashit( $dir ) . wp_basename( $filename, ".$ext" ) . ".{$new_ext}";
		}

		if ( $mime_type && ( $mime_type !== $this->mime_type ) ) {
			// The image will be converted when saving. Set the quality for the new mime-type if not already set.
			if ( $mime_type !== $this->output_mime_type ) {
				$this->output_mime_type = $mime_type;
			}
			$this->set_quality();
		} elseif ( ! empty( $this->output_mime_type ) ) {
			// Reset output_mime_type and quality.
			$this->output_mime_type = null;
			$this->set_quality();
		}

		return array( $filename, $new_ext, $mime_type );
	}

	
	public function generate_filename( $suffix = null, $dest_path = null, $extension = null ) {
		// If not empty the $suffix will be appended to the destination filename, just before the extension.
		if ( $suffix ) {
			$suffix = '-' . $suffix;
		} elseif ( '' !== $suffix ) {
			$suffix = '-' . $this->get_suffix();
		}

		$dir = pathinfo( $this->file, PATHINFO_DIRNAME );
		$ext = pathinfo( $this->file, PATHINFO_EXTENSION );

		$name    = wp_basename( $this->file, ".$ext" );
		$new_ext = strtolower( $extension ? $extension : $ext );

		if ( ! is_null( $dest_path ) ) {
			if ( ! wp_is_stream( $dest_path ) ) {
				$_dest_path = realpath( $dest_path );
				if ( $_dest_path ) {
					$dir = $_dest_path;
				}
			} else {
				$dir = $dest_path;
			}
		}

		return trailingslashit( $dir ) . "{$name}{$suffix}.{$new_ext}";
	}

	
	public function get_suffix() {
		if ( ! $this->get_size() ) {
			return false;
		}

		return "{$this->size['width']}x{$this->size['height']}";
	}

	
	public function maybe_exif_rotate() {
		$orientation = null;

		if ( is_callable( 'exif_read_data' ) && 'image/jpeg' === $this->mime_type ) {
			$exif_data = @exif_read_data( $this->file );

			if ( ! empty( $exif_data['Orientation'] ) ) {
				$orientation = (int) $exif_data['Orientation'];
			}
		}

		
		$orientation = apply_filters( 'wp_image_maybe_exif_rotate', $orientation, $this->file );

		if ( ! $orientation || 1 === $orientation ) {
			return false;
		}

		switch ( $orientation ) {
			case 2:
				// Flip horizontally.
				$result = $this->flip( false, true );
				break;
			case 3:
				/*
				 * Rotate 180 degrees or flip horizontally and vertically.
				 * Flipping seems faster and uses less resources.
				 */
				$result = $this->flip( true, true );
				break;
			case 4:
				// Flip vertically.
				$result = $this->flip( true, false );
				break;
			case 5:
				// Rotate 90 degrees counter-clockwise and flip vertically.
				$result = $this->rotate( 90 );

				if ( ! is_wp_error( $result ) ) {
					$result = $this->flip( true, false );
				}

				break;
			case 6:
				// Rotate 90 degrees clockwise (270 counter-clockwise).
				$result = $this->rotate( 270 );
				break;
			case 7:
				// Rotate 90 degrees counter-clockwise and flip horizontally.
				$result = $this->rotate( 90 );

				if ( ! is_wp_error( $result ) ) {
					$result = $this->flip( false, true );
				}

				break;
			case 8:
				// Rotate 90 degrees counter-clockwise.
				$result = $this->rotate( 90 );
				break;
		}

		return $result;
	}

	
	protected function make_image( $filename, $callback, $arguments ) {
		$stream = wp_is_stream( $filename );
		if ( $stream ) {
			ob_start();
		} else {
			// The directory containing the original file may no longer exist when using a replication plugin.
			wp_mkdir_p( dirname( $filename ) );
		}

		$result = call_user_func_array( $callback, $arguments );

		if ( $result && $stream ) {
			$contents = ob_get_contents();

			$fp = fopen( $filename, 'w' );

			if ( ! $fp ) {
				ob_end_clean();
				return false;
			}

			fwrite( $fp, $contents );
			fclose( $fp );
		}

		if ( $stream ) {
			ob_end_clean();
		}

		return $result;
	}

	
	protected static function get_mime_type( $extension = null ) {
		if ( ! $extension ) {
			return false;
		}

		$mime_types = wp_get_mime_types();
		$extensions = array_keys( $mime_types );

		foreach ( $extensions as $_extension ) {
			if ( preg_match( "/{$extension}/i", $_extension ) ) {
				return $mime_types[ $_extension ];
			}
		}

		return false;
	}

	
	protected static function get_extension( $mime_type = null ) {
		if ( empty( $mime_type ) ) {
			return false;
		}

		return wp_get_default_extension_for_mime_type( $mime_type );
	}
}