<?php
/**
 * Handles CSS output for background fields.
 *
 * @package     WFACPKirki
 * @subpackage  Controls
 * @copyright   Copyright (c) 2017, Aristeides Stathopoulos
 * @license     http://opensource.org/licenses/https://opensource.org/licenses/MIT
 * @since       3.0.0
 */

/**
 * Output overrides.
 */
if ( ! class_exists( 'WFACPKirki_Output_Field_Background' ) ) {
	class WFACPKirki_Output_Field_Background extends WFACPKirki_Output {

		/**
		 * Processes a single item from the `output` array.
		 *
		 * @access protected
		 *
		 * @param array $output The `output` item.
		 * @param array $value The field's value.
		 */
		protected function process_output( $output, $value ) {

			$output = wp_parse_args( $output, array(
					'media_query' => 'global',
					'element'     => 'body',
					'prefix'      => '',
					'suffix'      => '',
				) );

			foreach ( array( 'background-image', 'background-color', 'background-repeat', 'background-position', 'background-size', 'background-attachment' ) as $property ) {

				// See https://github.com/aristath/wfacpkirki/issues/1808.
				if ( 'background-color' === $property && ( ! isset( $value['background-image'] ) || empty( $value['background-image'] ) ) ) {
					$this->styles[ $output['media_query'] ][ $output['element'] ]['background'] = $output['prefix'] . $this->process_property_value( $property, $value[ $property ] ) . $output['suffix'];
				}

				if ( isset( $value[ $property ] ) && ! empty( $value[ $property ] ) ) {
					$this->styles[ $output['media_query'] ][ $output['element'] ][ $property ] = $output['prefix'] . $this->process_property_value( $property, $value[ $property ] ) . $output['suffix'];
				}
			}
		}
	}
}