<?php
namespace Incoviba\API\Common\Service;

use Carbon\Carbon;
use Incoviba\Mapper\User as UserMapper;
use Incoviba\Mapper\Login as LoginMapper;
use Incoviba\Mapper\Config as ConfigMapper;
use Incoviba\Model\Auth\User;

class Login
{
    protected UserMapper $userMapper;
    protected LoginMapper $loginMapper;
    protected ConfigMapper $configMapper;
    public function __construct(UserMapper $userMapper, LoginMapper $loginMapper, ConfigMapper $configMapper)
    {
        $this->userMapper = $userMapper;
        $this->loginMapper = $loginMapper;
        $this->configMapper = $configMapper;
    }

    public function setToken(User $user, string $selector, string $token)
    {
        $this->logout($user);
        $expiration = $this->configMapper->fetchByName('cookie_expiration_time');
        $data = [
            'user_id' => $user->id,
            'time' => (new \DateTimeImmutable())->format('Y-m-d H:i:s '),
            'selector' => $selector,
            'token' => $token,
            'status' => 1
        ];
        $status = false;
        try {
            $login = $this->loginMapper->create($data);
            $status = $this->loginMapper->save($login);
        } catch (\PDOException $e) {
            $login = false;
        }
        $output = [
            'input' => $data,
            'login' => $login,
            'logged_in' => $status
        ];
        if ($login !== false) {
            $output['expires'] = $login->time->modify("+{$expiration->value} second")->getTimestamp();
        }
        return $output;
    }
    public function logout(User $user): bool
    {
        $logins = $this->validLogins($user);
        if ($logins === false or count($logins) === 0) {
            return true;
        }
        $bool = true;
        foreach ($logins as $login) {
            $login->status = false;
            $bool &= $this->loginMapper->save($login);
        }
        return $bool;
    }
    public function validLogins(User $user): bool|array {
        return $this->loginMapper->fetchActiveByUser($user->id);
    }
    public function validate($request): bool
    {
        list($selector, $token) = explode(':', $request->token);
        $login = $this->loginMapper->fetchBySelector($selector);
        if (!$login or !$login->status or !password_verify($token, $login->token)) {
            return false;
        }
        $expiration = $this->configMapper->fetchByName('cookie_expiration_time');
        if ((Carbon::createFromTimestamp($login->time->getTimestamp()))->diffInSeconds() > $expiration->value) {
            $login->status = false;
            $this->loginMapper->save($login);
            return false;
        }
        return true;
    }
    public function getUser($request): User|bool
    {
        list($selector, $token) = explode(':', $request->token);
        $login = $this->loginMapper->fetchBySelector($selector);
        if (!$login or !$login->status) {
            return false;
        }
        return $login->user;
    }
}