<?php
/**
 * Plugin orchestrator.
 *
 * @package MM_Post_Grid
 */

namespace MM_Post_Grid;

use MM_Post_Grid\Admin\Settings_Fields;
use MM_Post_Grid\Admin\Settings_Page;
use MM_Post_Grid\Frontend\Shortcode;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Wires the plugin components to WordPress.
 *
 * @since 0.1
 */
final class Plugin {

	/**
	 * Shortcode tag.
	 *
	 * @since 0.1
	 * @var string
	 */
	const SHORTCODE = 'mm_post_grid';

	/**
	 * Boots the plugin.
	 *
	 * @since 0.1
	 * @return void
	 */
	public static function init() {
		add_action( 'update_option_' . Settings::OPTION, array( Settings::class, 'flush_cache' ) );

		( new Shortcode() )->register();
		( new Assets() )->register();
		( new REST_Controller() )->register();

		if ( is_admin() ) {
			( new Settings_Page() )->register();
			( new Settings_Fields() )->register();
		}
	}

	/**
	 * Seeds the default settings on activation.
	 *
	 * `add_option()` never overwrites an existing row, so re-activating the
	 * plugin keeps the settings the site owner already saved.
	 *
	 * @since 0.1
	 * @return void
	 */
	public static function activate() {
		add_option( Settings::OPTION, Settings::defaults() );
	}
}