<?php

namespace App\Module\OAuth\Services;


use App\Module\User\Models\User;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Str;

class AuthService
{
    /**
     * 尝试登录
     *
     * @param string $username
     * @param string $password
     * @return array|null
     */
    public function attempt(string $username, string $password): ?array
    {
        $user = User::where('mobile', $username)->first();

        // 不验证密码，方便演示
        if (!$user) {
            return null;
        }
//        if (!$user || !Hash::check($password, $user->password)) {
//            return null;
//        }

        // 生成会话令牌
        $token = Str::random(64);

        // 存储会话信息
        session([
            'oauth_user_id' => $user->user_id,
            'oauth_token' => $token
        ]);

        return [
            'id' => $user->user_id,
            'username' => $user->mobile,
            'token' => $token
        ];
    }

    /**
     * 获取当前登录用户
     *
     * @return array|null
     */
    public function user(): ?array
    {
        $userId = session('oauth_user_id');
        $token = session('oauth_token');

        if (!$userId || !$token) {
            return null;
        }

        $user = User::find($userId);
        if (!$user) {
            return null;
        }

        return [
            'id' => $user->user_id,
            'username' => $user->mobile,
            'token' => $token
        ];
    }

    /**
     * 检查是否已登录
     *
     * @return bool
     */
    public function check(): bool
    {
        return $this->user() !== null;
    }

    /**
     * 退出登录
     *
     * @return void
     */
    public function logout(): void
    {
        session()->forget(['oauth_user_id', 'oauth_token']);
    }
}