<?php
/**
 * Helper class
 *
 * @author {{author_name}}
 * @package {{slug}}
 */

namespace {{namespace}};

/**
 * Class Api
 *
 * @package {{slug}}
 */
class Helper {
	/**
	 * Return image
	 *
	 * @param string $url Image attachment url.
	 *
	 * @return array|null
	 */
	public static function check_image_exist( $url ) {
		$attachments = new \WP_Query(
			array(
				'post_type'   => 'attachment',
				'post_status' => 'inherit',
				'meta_query'  => array(
					array(
						'key'     => '_import_source',
						'value'   => $url,
						'compare' => '=',
					),
				),
			)
		);
		if( $attachments->have_posts() ){
			foreach ( $attachments->posts as $post ) {
				$attachment_url = wp_get_attachment_url( $post->ID );
				return array(
					'id'  => $post->ID,
					'url' => $attachment_url,
				);
			}
		}
		
		return false;
	}

	/**
	 * Handle Import file, and return File ID when process complete
	 *
	 * @param string $url URL of file.
	 *
	 * @return int|null
	 */
	public static function handle_file( $url ) {
		$file_name = basename( $url );
		$upload    = wp_upload_bits( $file_name, null, '' );
		self::fetch_file( $url, $upload['file'] );

		if ( $upload['file'] ) {
			$file_loc  = $upload['file'];
			$file_name = basename( $upload['file'] );
			$file_type = wp_check_filetype( $file_name );

			$attachment = array(
				'post_mime_type' => $file_type['type'],
				'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $file_name ) ),
				'post_content'   => '',
				'post_status'    => 'inherit',
			);

			include_once ABSPATH . 'wp-admin/includes/image.php';
			$attach_id = wp_insert_attachment( $attachment, $file_loc );
			update_post_meta( $attach_id, '_import_source', $url );

			try {
				$attach_data = wp_generate_attachment_metadata( $attach_id, $file_loc );
				wp_update_attachment_metadata( $attach_id, $attach_data );
			} catch ( \Exception $e ) {
				// none
			} catch ( \Throwable $t ) {
				// none
			}

			return array(
				'id'  => $attach_id,
				'url' => $upload['url'],
			);
		} else {
			return null;
		}
	}
	/**
	 * Download file and save to file system
	 *
	 * @param string $url File URL.
	 * @param string $file_path file path.
	 * @param string $endpoint Endpoint.
	 *
	 * @return array|bool
	 */
	public static function fetch_file( $url, $file_path, $endpoint = '' ) {
		$http     = new \WP_Http();
		$response = $http->get(
			add_query_arg(
				array(
					'sslverify' => false,
				),
				$url
			)
		);
		if ( is_wp_error( $response ) ) {
			return false;
		}

		$headers             = wp_remote_retrieve_headers( $response );
		$headers['response'] = wp_remote_retrieve_response_code( $response );

		if ( false === $file_path ) {
			return $headers;
		}

		$body = wp_remote_retrieve_body( $response );

		// GET request - write it to the supplied filename.
		require_once ABSPATH . 'wp-admin/includes/file.php';
		WP_Filesystem();
		global $wp_filesystem;
		$wp_filesystem->put_contents( $file_path, $body, FS_CHMOD_FILE );

		return $headers;
	}
}