<?php

namespace app\http\middleware;


use Lettered\Support\Auth as IAuth;
use Lettered\Support\Exceptions\ForbiddenException;
use thans\jwt\facade\JWTAuth;
use CasbinAdapter\Think\Facades\Casbin;


/**
 * 操作权限验证
 * Class CasbinAuthMiddleware
 * @package app\http\middleware
 */
class CasbinAuthMiddleware
{
    /**
     * @var IAuth
     */
    protected $auth;

    /**
     * CasbinAuthMiddleware constructor.
     * @param IAuth $auth
     */
    public function __construct(IAuth $auth)
    {
        // 这里要做下来源 是admin 还是agent
        $this->auth = $auth;
    }

    /**
     * Casbin 授权验证
     *
     * @author 许祖兴 < zuxing.xu@lettered.cn>
     * @date 2020/3/21 20:28
     *
     * @param $request
     * @param \Closure $next
     * @return mixed
     * @throws ForbiddenException
     * @throws \Casbin\Exceptions\CasbinException
     * @throws \Lettered\Support\Exceptions\FailedException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function handle($request, \Closure $next)
    {
        // 操作权限验证 v0  v1  v2
        //           Uid Uri Method
        // 当前用户
        $user = $this->auth->user();

        // 检查忽略项
        if (in_array($request->baseUrl() . '^' . strtolower($request->method()), config('casbin.ignore.policy'))
            || in_array($user->id, str2arr(config('casbin.ignore.users_idx')))) {
        } elseif (!Casbin::enforce('user_id_' . $user->id, $request->baseUrl(), strtolower($request->method()))) {
            throw new ForbiddenException([
                'errmsg' => 'Unauthorized: 您无权操作！'
            ]);
        };

        // 操作记录
        $log =[
            'user_id' => $user->id,
            'route' => $request->baseUrl(),
            'operate'  => strtolower($request->method()),
            'query' => enjson($request->param()),
            'ip' => $request->ip(),
            'os' => get_user_agent(),
            'browser' => get_user_agent('br')
        ];

        // 系统日志记录
        $result = model('OperationLog')::where($log)->find();

        if (!$result) {
            model('OperationLog')::create($log);
        } else {
            $log['id'] = $result->id;
            $log['count'] = $result->count+1;
            model('OperationLog')::update($log);
        }

        return $next($request);
    }

}