<?php
/**
 * Created by PhpStorm.
 * User: giancarlo
 * Date: 28/06/2018
 * Time: 20:01
 */

namespace OpenMind\System;

use DB\SQL\Mapper;

/**
 * Class User
 *
 * @property int $id
 * @property string $username
 * @property string $saltedpassword
 * @property string $roles
 * @package OpenMind\System
 */
class User extends Mapper
{
    private $userRoles;

    /**
     * User constructor.
     * @param string/array $where
     */
    public function __construct($where)
    {
        global $f3;

        $this->onload(function ($obj) {
            $obj->userRoles = unserialize($obj->roles);
        });

        parent::__construct($f3->get('DB'), 'users', NULL, 3600);

        if ($where !== NULL) {
            $this->load($where);
        } else
            $this->userRoles = [];
    }

    public function generatePassword(string $clearPassword)
    {
        return password_hash($this->username . "|$clearPassword", PASSWORD_BCRYPT);
    }

    /**
     * Reload user from $_SESSION
     */
    public static function Restore()
    {
        global $f3;

        $userId = $f3->get('SESSION.user');
        return new User(['id=?', $userId]);

    }

    /**
     * Save user in $_SESSION
     */
    public function Store()
    {
        global $f3;
        $f3->set('SESSION.user', $this->id);
    }

    /**
     * Check if user can do <$permissionName>
     *
     * @param string $permissionName
     * @return bool
     */
    public function hasPermission(string $permissionName): bool
    {
        if ($this->userRoles)
            return in_array($permissionName, $this->userRoles);
        else
            return false;
    }

    public function grantPermission(string $permissionName)
    {
        if (!in_array($permissionName, $this->userRoles))
            array_push($this->userRoles, $permissionName);
    }

    public function removePermission(string $permissionName)
    {
        $i = array_search($permissionName, $this->userRoles);
        if ($i !== false)
            unset($this->userRoles[$i]);
    }

    public function save()
    {
        $this->roles = serialize($this->userRoles);
        return parent::save(); // TODO: Change the autogenerated stub
    }

    /**
     * @return array
     */
    public function getRoles(): array
    {
        return $this->userRoles;
    }
}