<?php


namespace App\Http\ApiControllers;


use Illuminate\Http\Request;
use Illuminate\Http\Response;

class LoginController
{
    public function login(Request $request):Response
    {
        $user_name = $request->get('username','');
        $password = $request->get('password','');
        $user = Users::where(['username' => $user_name,'password' => $password])->first();
        if(!$user)
        {
            return response()->json('用戶名或密碼錯誤！');
        }
        unset($user['password']);
        //登录成功token
        $token = $this->getJWTToken($user);
        cache('user-'.$user['id'],$user);
        return response()->json(['token' => $token]);
    }

    public function getJWTToken($value)
    {
        $time = time();
        $payload = [
            'iat' => $time,
            'nbf' => $time,
            'exp' => $time+7200,
            'data' => [
                'id' => $value['id'],
                'username' => $value['user_name']
            ]
        ];
        $key =  env('JWT_SECRET');
        $alg = 'HS256';
        $token = JWT::encode($payload,$key,$alg);
        return $token;
    }
}