<?php


namespace App\Http\ApiControllers;


use Illuminate\Foundation\Auth\User;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;

class LoginController
{
    /**
     * @api {post} /login 登录接口
     * @apiName login
     * @apiGroup User
     *
     * @apiParam {string} username 用户名
     * @apiParam {string} password 用户密码,需要base64加密
     *
     * @apiSuccess {string} message 响应描述
     * @apiSuccess {int} status_code HTTP响应码
     * @apiSuccess {string} data.token 认证token
     * @apiSuccess {String} data.menu 菜单JSON
     *
     * @apiSuccessExample {json} Success-Response:
     *     HTTP/1.1 200 OK
     *     {
     *       "message": "请求成功",
     *       "status_code": "200"
     *       "data":{
     *             "toke":"token",
     *             "menu":"{}",
     *        }
     *     }
     */
    public function login(Request $request):JsonResponse
    {
        $userName = $request->get('username','');
        $password = $request->get('password','');
        $user = User::query()->where("name",$userName)->first();
        $response = [
            'message' => '请求成功',
            'status_code' => 200,
        ];
        //验证用户登录
        if (!$user || !Hash::check(base64_decode($password),$user->password)){
            $response["message"] = "用户名或密码错误";
            $response["status_code"] = 410;
            return response()->json($response);
        }

        //获取公私钥
        try {
            $privateKey = file_get_contents(base_path().'/private.pem');
        }catch (\Exception $e){
            $response["status_code"] = 410;
            if (strpos($e->getMessage(),"No such file or directory")!==false)$response["message"] = "服务器异常,资源丢失";
            else $response["message"] = "访问某些资源失败";
            return response()->json($response);
        }

        try {
            $response["data"] = ["token"=>app("UserService")->getJWTToken($user,$privateKey),
                "menu"=>$this->getMenu($user),"info"=>["id"=>$user->id,"name"=>$user->name]];
            app("UserService")->setOrRefreshCache($user);
            return response()->json($response);
        }catch (\Exception $e){
            $response["status_code"] = 409;
            $response["message"] = "资源异常，无法反馈";
            return response()->json($response);
        }
    }

    private function getMenu($user)
    {
        Auth::setUser($user);
        $authorities = app("AuthorityService")->getUserAndroidAuthority();
        $result = [];
        foreach (app("AuthorityService")->format($authorities) as $authority){
            foreach ($authority["child"] as $authorityOne){
                $item = [];
                foreach ($authorityOne["child"] as $authorityTwo){
                    $item[] = $authorityTwo["name"];
                }
                $result[$authorityOne["name"]] = $item;
            }
        }
        return json_encode($result,JSON_UNESCAPED_UNICODE);
    }
}