<?php

/** Block direct access */
defined('ABSPATH') || exit();

/** check if class `WP_Dark_Mode_Shortcode` not exists yet */
if (!class_exists('WP_Dark_Mode_Shortcode')) {
	class WP_Dark_Mode_Shortcode {

		/**
		 * @var null
		 */
		private static $instance = null;

		/**
		 * WP_Dark_Mode_Shortcode constructor.
		 */
		public function __construct() {
			add_shortcode('wp_dark_mode', [$this, 'render_dark_mode_btn']);
		}

		/**
		 * render the dark mode switcher button
		 */
		public function render_dark_mode_btn($atts) {

			if (!wp_dark_mode_enabled()) {
				return false;
			}

			$atts = shortcode_atts([
				'floating' => 'no',
				'style'    => 1,
				'align' => 'left'
			], $atts);

			$custom_icon = false;

			if (wp_dark_mode()->is_pro_active() || wp_dark_mode()->is_ultimate_active()) {
				$custom_icon = 'on' == wp_dark_mode_get_settings('wp_dark_mode_display', 'custom_switch_icon', 'off');
			}

			ob_start();

			if ($custom_icon) {
				wp_dark_mode()->get_template("btn-custom", $atts);
			} else {
				if (file_exists(wp_dark_mode()->plugin_path("templates/btn-{$atts['style']}.php"))) {
					wp_dark_mode()->get_template("btn-{$atts['style']}", $atts);
				} else {
					wp_dark_mode()->get_template("btn-1", $atts);
				}
			}

			return ob_get_clean();
		}

		/**
		 * @return WP_Dark_Mode_Shortcode|null
		 */
		public static function instance() {
			if (is_null(self::$instance)) {
				self::$instance = new self();
			}

			return self::$instance;
		}
	}
}

WP_Dark_Mode_Shortcode::instance();