<?php

namespace TwoFAS\TwoFAS\Http;

class Redirection_Response {

	/**
	 * @var string
	 */
	private $target_page;

	/**
	 * @var string
	 */
	private $target_action;

	/**
	 * @var string
	 */
	private $url;

	/**
	 * @param string $target_page
	 * @param string $target_action
	 * @param string $url
	 */
	public function __construct( $target_page, $target_action = '', $url = '' ) {
		$this->target_page   = $target_page;
		$this->target_action = $target_action;
		$this->url           = $url;
	}

	public function redirect() {
		$url = empty( $this->url ) ? $this->generate_url() : $this->url;

		header( 'Location: ' . $url );
		die();
	}

	/**
	 * @return string
	 */
	private function generate_url() {
		$url = get_admin_url();

		$url .= 'admin.php?';

		$query = array();

		$query['page'] = $this->target_page;

		if ( ! empty( $this->target_action ) ) {
			$query['twofas-action'] = $this->target_action;
		}

		$url .= http_build_query( $query );

		return $url;
	}
}