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✏️ Editing: class-image-editor.php

<?php
/**
 * This class provides the means to edit an image.
 *
 * @package JupiterX\Framework\API\Image
 *
 * @since   1.0.0
 */

/**
 * Image Editor
 *
 * @since   1.0.0
 * @ignore
 * @access  private
 *
 * @package JupiterX\Framework\API\Image
 */
final class _JupiterX_Image_Editor {

/**
	 * Image attachment ID.
	 *
	 * @var string
	 */
	private $attachment_id;

/**
	 * The image source.
	 *
	 * @var string
	 */
	private $src;

/**
	 * An array of editor arguments.
	 *
	 * @var array
	 */
	private $args = array();

/**
	 * Returned format.
	 *
	 * @var bool
	 */
	private $output = false;

/**
	 * Rebuilt path.
	 *
	 * @var string
	 */
	private $rebuilt_path;

/**
	 * _JupiterX_Image_Editor constructor.
	 *
	 * @since 1.0.0
	 *
	 * @param int    $attachment_id Image attachment ID.
	 * @param string $src           The image source.
	 * @param array  $args          An array of editor arguments, where the key is the {@see WP_Image_Editor} method name
	 *                              and the value is a numeric array of arguments for the method. Make sure to specify
	 *                              all of the arguments the WordPress editor's method requires. Refer to
	 *                              {@link https://codex.wordpress.org/Class_Reference/WP_Image_Editor#Methods} for more
	 *                              information on the available methods and each method's arguments.
	 * @param string $output        Optional. Returned format. Accepts STRING, OBJECT, ARRAY_A, or ARRAY_N.
	 *                              Default is STRING.
	 */
	public function __construct( $attachment_id, $src, array $args, $output = 'STRING' ) {
		$local_source        = jupiterx_url_to_path( $src );
		$this->attachment_id = $attachment_id;
		$this->src           = file_exists( $local_source ) ? $local_source : $src;
		$this->args          = $args;
		$this->output        = $output;
		$this->rebuilt_path  = $this->rebuild_image_path();
	}

/**
	 * Run the editor.
	 *
	 * @since 1.0.0
	 *
	 * @return array|object|string
	 */
	public function run() {

// Return the edited image's info packet when the file already exists or we successfully create it.
		if ( $this->edited_image_exists() || $this->create_edited_image() ) {
			return $this->get_image_info( jupiterx_path_to_url( $this->rebuilt_path ), true );
		}

return $this->get_image_info( $this->src );
	}

/**
	 * Edit the image and then store it in the rebuilt path.
	 *
	 * @since 1.0.0
	 *
	 * @return bool Returns true when successful; else false is returned.
	 */
	private function create_edited_image() {
		$wp_editor = wp_get_image_editor( $this->src );

// If an error occurred, bail out.
		if ( is_wp_error( $wp_editor ) ) {
			return false;
		}

// Fire the editing task.
		foreach ( $this->args as $method => $args ) {

if ( is_callable( array( $wp_editor, $method ) ) ) {
				call_user_func_array( array( $wp_editor, $method ), (array) $args );
			}
		}

// Save the "edited" image as a new image.
		$wp_editor->save( $this->rebuilt_path );

return ! is_wp_error( $wp_editor );
	}

/**
	 * Returns the image's information in the configured output format.
	 *
	 * @since 1.0.0
	 *
	 * @param string $src                 Image's path or URL.
	 * @param bool   $edited_image_exists When true, include the dimensions.
	 *
	 * @return array|object
	 * @SuppressWarnings(PHPMD.ElseExpression)
	 */
	private function get_image_info( $src, $edited_image_exists = false ) {

if ( 'STRING' === $this->output ) {
			return $src;
		}

if ( $edited_image_exists ) {
			list( $width, $height ) = getimagesize( $this->rebuilt_path );
		} else {
			$width  = null;
			$height = null;
		}

if ( 'ARRAY_N' === $this->output ) {
			return array( $src, $width, $height );
		}

$image_info = array(
			'src'    => $src,
			'width'  => $width,
			'height' => $height,
		);

if ( 'OBJECT' === $this->output ) {
			return (object) $image_info;
		}

return $image_info;
	}

/**
	 * Rebuild the image's path.
	 *
	 * @since 1.0.0
	 * @since 1.8.0 Include attachment ID from custom generated hash to make filename unique.
	 *
	 * @return string
	 */
	private function rebuild_image_path() {
		$upload_dir = jupiterx_get_images_dir();
		$info       = pathinfo( preg_replace( '#\?.*#', '', $this->src ) );
		$query      = substr( md5( $this->attachment_id . serialize( $this->args ) ), 0, 7 ); // phpcs:ignore
		$extension  = $info['extension'];
		$filename   = str_replace( '.' . $extension, '', $info['basename'] );

return "{$upload_dir}{$filename}-{$query}.{$extension}";
	}

/**
	 * Checks if the edited image exists.
	 *
	 * @since 1.0.0
	 *
	 * @return bool
	 */
	private function edited_image_exists() {
		return file_exists( $this->rebuilt_path );
	}
}

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