<?php
/**
 * Controls handler
 *
 * @package     WFACPKirki
 * @category    Core
 * @author      Aristeides Stathopoulos
 * @copyright   Copyright (c) 2017, Aristeides Stathopoulos
 * @license     http://opensource.org/licenses/https://opensource.org/licenses/MIT
 */

/**
 * Our main WFACPKirki_Control object
 */
if ( ! class_exists( 'WFACPKirki_Control' ) ) {
	#[AllowDynamicProperties]
	class WFACPKirki_Control {

		/**
		 * The $wp_customize WordPress global.
		 *
		 * @access protected
		 * @var WP_Customize_Manager
		 */
		protected $wp_customize;

		/**
		 * An array of all available control types.
		 *
		 * @access protected
		 * @var array
		 */
		protected static $control_types = array();

		/**
		 * The class constructor.
		 * Creates the actual controls in the customizer.
		 *
		 * @access public
		 *
		 * @param array $args The field definition as sanitized in WFACPKirki_Field.
		 */
		public function __construct( $args ) {

			// Set the $wp_customize property.
			global $wp_customize;
			if ( ! $wp_customize ) {
				return;
			}
			$this->wp_customize = $wp_customize;

			// Set the control types.
			$this->set_control_types();
			// Add the control.
			$this->add_control( $args );

		}

		/**
		 * Get the class name of the class needed to create tis control.
		 *
		 * @access private
		 *
		 * @param array $args The field definition as sanitized in WFACPKirki_Field.
		 *
		 * @return         string   the name of the class that will be used to create this control.
		 */
		private function get_control_class_name( $args ) {

			// Set a default class name.
			$class_name = 'WP_Customize_Control';
			// Get the classname from the array of control classnames.
			if ( array_key_exists( $args['type'], self::$control_types ) ) {
				$class_name = self::$control_types[ $args['type'] ];
			}

			return $class_name;

		}

		/**
		 * Adds the control.
		 *
		 * @access protected
		 *
		 * @param array $args The field definition as sanitized in WFACPKirki_Field.
		 */
		final protected function add_control( $args ) {

			// Get the name of the class we're going to use.
			$class_name = $this->get_control_class_name( $args );
			// Add the control.
			$this->wp_customize->add_control( new $class_name( $this->wp_customize, $args['settings'], $args ) );

		}

		/**
		 * Sets the $control_types property.
		 * Makes sure the wfacpkirki_control_types filter is applied
		 * and that the defined classes actually exist.
		 * If a defined class does not exist, it is removed.
		 *
		 * @access private
		 */
		private function set_control_types() {

			// Early exit if this has already run.
			if ( ! empty( self::$control_types ) ) {
				return;
			}

			self::$control_types = apply_filters( 'wfacpkirki_control_types', array() );

			// Make sure the defined classes actually exist.
			foreach ( self::$control_types as $key => $classname ) {

				if ( ! class_exists( $classname ) ) {
					unset( self::$control_types[ $key ] );
				}
			}
		}
	}
}