<?php
/**
 * Handles CSS output for typography fields.
 *
 * @package     WFOCUKirki
 * @subpackage  Controls
 * @copyright   Copyright (c) 2017, Aristeides Stathopoulos
 * @license     http://opensource.org/licenses/https://opensource.org/licenses/MIT
 * @since       2.2.0
 */
if ( ! class_exists( 'WFOCUKirki_Output_Field_Typography' ) ) {
	/**
	 * Output overrides.
	 */
	class WFOCUKirki_Output_Field_Typography extends WFOCUKirki_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['media_query'] = ( isset( $output['media_query'] ) ) ? $output['media_query'] : 'global';
			$output['element']     = ( isset( $output['element'] ) ) ? $output['element'] : 'body';
			$output['prefix']      = ( isset( $output['prefix'] ) ) ? $output['prefix'] : '';
			$output['suffix']      = ( isset( $output['suffix'] ) ) ? $output['suffix'] : '';

			$value = WFOCUKirki_Field_Typography::sanitize( $value );

			$properties = array(
				'font-family',
				'font-size',
				'variant',
				'font-weight',
				'font-style',
				'letter-spacing',
				'word-spacing',
				'line-height',
				'text-align',
				'text-transform',
				'text-decoration',
				'color',
			);

			foreach ( $properties as $property ) {

				// Early exit if the value is not in the defaults.
				if ( ! isset( $this->field['default'][ $property ] ) ) {
					continue;
				}

				// Early exit if the value is not saved in the values.
				if ( ! isset( $value[ $property ] ) || ! $value[ $property ] ) {
					continue;
				}

				// Early exit if we use "choice" but not for this property.
				if ( isset( $output['choice'] ) && $output['choice'] !== $property ) {
					continue;
				}

				// Take care of variants.
				if ( 'variant' === $property && isset( $value['variant'] ) && ! empty( $value['variant'] ) ) {

					// Get the font_weight.
					$font_weight = str_replace( 'italic', '', $value['variant'] );
					$font_weight = ( in_array( $font_weight, array( '', 'regular' ), true ) ) ? '400' : $font_weight;

					// Is this italic?
					$is_italic                                                                   = ( ! is_null( $value['variant'] ) && false !== strpos( $value['variant'], 'italic' ) );
					$this->styles[ $output['media_query'] ][ $output['element'] ]['font-weight'] = $font_weight;
					if ( $is_italic ) {
						$this->styles[ $output['media_query'] ][ $output['element'] ]['font-style'] = 'italic';
					}
					continue;
				}

				$property_value = $this->process_property_value( $property, $value[ $property ] );
				if ( 'font-family' === $property ) {
					$value['font-backup'] = ( isset( $value['font-backup'] ) ) ? $value['font-backup'] : '';
					$property_value       = $this->process_property_value( $property, array(
						$value['font-family'],
						$value['font-backup'],
					) );
				}
				$property                                                                  = ( isset( $output['choice'] ) && isset( $output['property'] ) ) ? $output['property'] : $property;
				$property_value                                                            = ( is_array( $property_value ) && isset( $property_value[0] ) ) ? $property_value[0] : $property_value;
				$this->styles[ $output['media_query'] ][ $output['element'] ][ $property ] = $output['prefix'] . $property_value . $output['suffix'];
			}
		}
	}
}