<?php

namespace DeliciousBrains\WPMDB\Pro\Compatibility\Layers\Platforms;

use WP_Error;

class Platforms {
	/**
	 * @var string[] List of classes implementing PlatformInterface
	 */
	private $supported_platform = [ WPEngine::class, Flywheel::class ];

	/**
	 * @var PlatformInterface[] Container of instantiated platform classes
	 */
	private $platforms = [];

	/**
	 * Platforms constructor.
	 * Registers wpmdb_hosting_platform filter for each supported platform
	 */
	public function __construct() {
		/** @var PlatformInterface $platform */
		foreach ( $this->supported_platform as $platform ) {
			$this->platforms[ $platform::get_key() ] = new $platform;
		}

		add_filter( 'wpmdb_site_details', [ $this, 'filter_site_details' ] );
	}

	/**
	 * Get the current platform's name if it is supported.
	 *
	 * @return string|null
	 */
	public static function get_platform() {
		return apply_filters( 'wpmdb_hosting_platform', null );
	}

	/**
	 * Filter site details to add platform.
	 *
	 * @param array|WP_Error $site_details
	 *
	 * @return array
	 */
	public function filter_site_details( $site_details ) {
		if ( ! is_wp_error( $site_details ) && is_array( $site_details ) ) {
			$site_details['platform'] = static::get_platform();
			$site_details['pwp_name'] = defined( 'PWP_NAME' ) ? PWP_NAME : '';
		}

		return $site_details;
	}
}