<?php
/**
 * Plugin bootstrap.
 *
 * @package Fillaro
 */

namespace Fillaro;

use Fillaro\Admin\Admin;
use Fillaro\Admin\Exporter;
use Fillaro\Entries\Retention;
use Fillaro\Fields\Registry;
use Fillaro\Render\Assets;
use Fillaro\Render\Block;
use Fillaro\Render\Preview;
use Fillaro\Render\Shortcode;
use Fillaro\Rest\EntriesController;
use Fillaro\Rest\FormsController;
use Fillaro\Rest\SettingsController;
use Fillaro\Rest\SubmitController;
use Fillaro\Submission\FallbackHandler;

defined( 'ABSPATH' ) || exit;

/**
 * Wires every component to WordPress.
 */
final class Plugin {

	/**
	 * Singleton instance.
	 *
	 * @var Plugin|null
	 */
	private static $instance = null;

	/**
	 * Field type registry.
	 *
	 * @var Registry
	 */
	public $fields;

	/**
	 * Get the plugin instance.
	 *
	 * @return Plugin
	 */
	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
			self::$instance->boot();
		}
		return self::$instance;
	}

	/**
	 * Register hooks.
	 */
	private function boot() {
		Install::maybe_upgrade();

		$this->fields = new Registry();

		( new Assets() )->register();
		( new Shortcode() )->register();
		( new Block() )->register();
		( new Preview() )->register();
		( new FallbackHandler() )->register();
		( new Retention() )->register();

		add_action(
			'rest_api_init',
			static function () {
				( new FormsController() )->register_routes();
				( new EntriesController() )->register_routes();
				( new SubmitController() )->register_routes();
				( new SettingsController() )->register_routes();
			}
		);

		if ( is_admin() ) {
			( new Admin() )->register();
			( new Exporter() )->register();
		}

		/**
		 * Fires after Fillaro has loaded. Add-ons hook here.
		 *
		 * @param Plugin $plugin Plugin instance.
		 */
		do_action( 'fillaro/loaded', $this );
	}

	/**
	 * Capability required to manage forms and entries.
	 *
	 * @return string
	 */
	public static function capability() {
		/**
		 * Filters the capability that manages forms and entries.
		 *
		 * @param string $capability Default 'manage_options'.
		 */
		return (string) apply_filters( 'fillaro/capability', 'manage_options' );
	}
}