<?php namespace SokoWeb\Request;

use SokoWeb\Interfaces\Repository\IUserRepository;
use SokoWeb\Interfaces\Authentication\IUser;
use SokoWeb\Interfaces\Request\IRequest;
use SokoWeb\Interfaces\Request\ISession;

class Request implements IRequest
{
    private string $base;

    private array $get;

    private array $routeParams = [];

    private array $post;

    private array $headers;

    private ISession $session;

    private ?IUser $user = null;

    public function __construct(
        string $base,
        array $get,
        array $post,
        array $headers,
        ISession $session,
        IUserRepository $userRepository)
    {
        $this->base = $base;
        $this->get = $get;
        $this->post = $post;
        $this->headers = $headers;
        $this->session = $session;

        $userId = $this->session->get('userId');
        if ($userId !== null) {
            $this->user = $userRepository->getById($userId);
        }
    }

    public function setParsedRouteParams(array $routeParams): void
    {
        $this->routeParams = $routeParams;
    }

    public function getBase(): string
    {
        return $this->base;
    }

    public function query($key)
    {
        if (isset($this->get[$key])) {
            return $this->get[$key];
        }

        if (isset($this->routeParams[$key])) {
            return $this->routeParams[$key];
        }

        return null;
    }

    public function post($key)
    {
        if (isset($this->post[$key])) {
            return $this->post[$key];
        }

        return null;
    }

    public function header($key)
    {
        if (isset($this->headers[$key])) {
            return $this->headers[$key];
        }

        return null;
    }

    public function session(): ISession
    {
        return $this->session;
    }

    public function setUser(?IUser $user): void
    {
        if ($user === null) {
            $this->session->delete('userId');
            return;
        }

        $this->session->set('userId', $user->getUniqueId());
    }

    public function user(): ?IUser
    {
        return $this->user;
    }
}