<?php

if ( ! class_exists( 'Kirki_Config' ) ) {
	class Kirki_Config extends Kirki_Customizer {

		/**
		 * The default arguments.
		 * These are set in the class constructor.
		 * Used as a fallback in case the user has not defined any.
		 */
		public $default_args = array();

		/**
		 * The class constructor
		 *
		 * @param string $id
		 * @param array  $args
		 * @return       void
		 */
		public function __construct( $id, $args = array() ) {

			// Call the parent constructor
			parent::__construct();
			// Set the default args
			$this->default_args = array(
				'capability'     => 'edit_theme_options',
				'option_type'    => 'theme_mod',
				'option_name'    => '',
				'compiler'       => array(),
				'disable_output' => false,
				'postMessage'    => '',
			);
			// Process the 'kirki/config' filter by replacing the defaults
			$this->default_args = $this->config_from_filters();
			// Add the config
			$this->add_config( $id, $args );

		}

		/**
		 * Adds the configuration to the Kirki object.
		 *
		 * @param string $config_id
		 * @param array  $args
		 * @return  void
		 */
		public function add_config( $config_id, $args ) {
			// Allow empty value as the config ID by setting the id to global.
			$config_id = ( '' == $config_id ) ? 'global' : $config_id;
			// Set the config
			Kirki::$config[ $config_id ] = array_merge( $this->default_args, $args );
		}

		/**
		 * Parses the 'kirki/config' filter.
		 *
		 * @return  array
		 */
		public function config_from_filters() {
			// get the args from the filter
			$default_args = $this->default_args;
			$args = apply_filters( 'kirki/config', $default_args );
			// create a valid config by merging with the default args.
			$valid_args = array();
			$valid_args['capability']     = isset( $args['capability'] ) ? $args['capability'] : $default_args['capability'];
			$valid_args['option_type']    = isset( $args['option_type'] ) ? $args['option_type'] : $default_args['option_type'];
			$valid_args['option_name']    = isset( $args['option_name'] ) ? $args['option_name'] : $default_args['option_name'];
			$valid_args['compiler']       = isset( $args['compiler'] ) ? $args['compiler'] : $default_args['compiler'];
			$valid_args['disable_output'] = isset( $args['disable_output'] ) ? $args['disable_output'] : $default_args['disable_output'];
			$valid_args['postMessage'] = isset( $args['postMessage'] ) ? $args['postMessage'] : $default_args['postMessage'];

			return $valid_args;

		}

	}
}