tion.
	 * @param string $item_type Optional. Type for this item if it's custom or specific type. Default: custom.
	 *
	 * @return array|WP_Error Response in case of success, failure or pending.
	 */
	private function check_cpcss_job_status( $job_id, $item_path, $item_url, $is_mobile = false, $item_type = 'custom' ) {
		$job_details = $this->api_client->get_job_details( $job_id, $item_url, $is_mobile, $item_type );

		if ( is_wp_error( $job_details ) ) {
			$this->data_manager->delete_cache_job_id( $item_url, $is_mobile );

			return $job_details;
		}

		if ( 200 !== $job_details->status ) {
			// On job error.
			return $this->on_job_error( $job_details, $item_url, $is_mobile, $item_type );
		}

		// On job status 200.
		$job_state = $job_details->data->state;

		// For pending job status.
		if ( isset( $job_state ) && 'complete' !== $job_state ) {
			return $this->on_job_pending( $item_url, $item_type );
		}

		// For successful job status.
		if (
			isset( $job_state, $job_details->data->critical_path )
			&&
			'complete' === $job_state
		) {
			return $this->on_job_success( $item_path, $item_url, $job_details->data->critical_path, $is_mobile, $item_type );
		}
	}

	/**
	 * Process logic for job error.
	 *
	 * @since 3.6
	 *
	 * @param array  $job_details Job details array.
	 * @param string $item_url    Url for web page to be processed, used for error messages.
	 * @param bool   $is_mobile   Bool identifier for is_mobile CPCSS generation.
	 * @param string $item_type Optional. Type for this item if it's custom or specific type. Default: custom.
	 *
	 * @return WP_Error
	 */
	private function on_job_error( $job_details, $item_url, $is_mobile = false, $item_type = 'custom' ) {
		$this->data_manager->delete_cache_job_id( $item_url, $is_mobile );

		if ( $is_mobile ) {

			$error = sprintf(
				// translators: %1$s = item URL or item type.
				__( 'Mobile Critical CSS for %1$s not generated.', 'rocket' ),
				( 'custom' === $item_type ) ? $item_url : $item_type
			);
		} else {

			$error = sprintf(
				// translators: %1$s = item URL or item type.
				__( 'Critical CSS for %1$s not generated.', 'rocket' ),
				( 'custom' === $item_type ) ? $item_url : $item_type
			);
		}

		if ( isset( $job_details->message ) ) {
			// translators: %1$s = error message.
			$error .= ' ' . sprintf( __( 'Error: %1$s', 'rocket' ), $job_details->message );
		}

		return new WP_Error(
			'cpcss_generation_failed',
			$error,
			[
				'status' => 400,
			]
		);
	}

	/**
	 * Process logic for job pending status.
	 *
	 * @since 3.6
	 *
	 * @param string $item_url Url for web page to be processed, used for error messages.
	 * @param string $item_type Optional. Type for this item if it's custom or specific type. Default: custom.
	 *
	 * @return array
	 */
	private function on_job_pending( $item_url, $item_type = 'custom' ) {
		return [
			'code'    => 'cpcss_generation_pending',
			'message' => sprintf(
				// translators: %1$s = Item URL or item type.
				__( 'Critical CSS for %s in progress.', 'rocket' ),
				( 'custom' === $item_type ) ? $item_url : $item_type
			),
		];
	}

	/**
	 * Process logic for job success status.
	 *
	 * @since 3.6
	 *
	 * @param string $item_path  Item Path for web page to be processed.
	 * @param string $item_url   Item Url for web page to be processed.
	 * @param string $cpcss_code CPCSS Code to be saved.
	 * @param bool   $is_mobile  Bool identifier for is_mobile CPCSS generation.
	 * @param string $item_type Optional. Type for this item if it's custom or specific type. Default: custom.
	 *
	 * @return array|WP_Error
	 */
	private function on_job_success( $item_path, $item_url, $cpcss_code, $is_mobile = false, $item_type = 'custom' ) {
		// delete cache job_id for this item.
		$this->data_manager->delete_cache_job_id( $item_url, $is_mobile );

		// save the generated CPCSS code into file.
		$saved = $this->data_manager->save_cpcss( $item_path, $cpcss_code, $item_url, $is_mobile, $item_type );
		if ( is_wp_error( $saved ) ) {
			return $saved;
		}

		if ( $is_mobile ) {
			return [
				'code'    => 'cpcss_generation_successful',
				'message' => sprintf(
					// translators: %1$s = Item URL or item type.
					__( 'Mobile Critical CSS for %s generated.', 'rocket' ),
					( 'custom' === $item_type ) ? $item_url : $item_type
				),
			];
		}

		// Send the current status of job.
		return [
			'code'    => 'cpcss_generation_successful',
			'message' => sprintf(
				// translators: %1$s = Item URL or item type.
				__( 'Critical CSS for %s generated.', 'rocket' ),
				( 'custom' === $item_type ) ? $item_url : $item_type
			),
		];
	}

	/**
	 * Process the login for CPCSS deletion.
	 *
	 * @param string $item_path Path for item to delete CPCSS code.
	 *
	 * @return array|WP_Error
	 */
	public function process_delete( $item_path ) {
		$deleted = $this->data_manager->delete_cpcss( $item_path );

		if ( is_wp_error( $deleted ) ) {
			return $deleted;
		}

		return [
			'code'    => 'success',
			'message' => __( 'Critical CSS file deleted successfully.', 'rocket' ),
		];
	}

	/**
	 * Process timeout action for CPCSS generation.
	 *
	 * @since 3.6
	 *
	 * @param string $item_url  URL for item to be used in error messages.
	 * @param bool   $is_mobile Bool identifier for is_mobile CPCSS generation.
	 * @param string $item_type Optional. Type for this item if it's custom or specific type. Default: custom.
	 * @return WP_Error
	 */
	private function process_timeout( $item_url, $is_mobile = false, $item_type = 'custom' ) {
		$this->data_manager->delete_cache_job_id( $item_url, $is_mobile );

		if ( $is_mobile ) {
			return new WP_Error(
				'cpcss_generation_timeout',
				sprintf(
					// translators: %1$s = Item URL or item type.
					__( 'Mobile Critical CSS for %1$s timeout. Please retry a little later.', 'rocket' ),
					( 'custom' === $item_type ) ? $item_url : $item_type
				),
				[
					'status' => 400,
				]
			);
		}

		return new WP_Error(
			'cpcss_generation_timeout',
			sprintf(
				// translators: %1$s = Item URL or item type.
				__( 'Critical CSS for %1$s timeout. Please retry a little later.', 'rocket' ),
				( 'custom' === $item_type ) ? $item_url : $item_type
			),
			[
				'status' => 400,
			]
		);
	}

}