<?php
namespace App\Service;

use App\Const\Im;
use App\Exceptions\AppException;
use Illuminate\Support\Env;
use Illuminate\Support\Facades\Http;

class ImService{
    const user_register_data = [
        'secret' => '',
        'users' => [
            'userID' => '',
            'nickname' => '',
            'faceURL' => '',
        ],
    ];

    /**
     * @throws AppException
     */
    function userUserRegister($userId, $nickname = '', $faceUrl=''): bool
    {
        $path = '/user/user_register';
        $aData['users'] = [
            'userID' => $this->genImUid($userId),
            'nickname' => $nickname,
            'faceURL' => $faceUrl,
        ];
        $jRes = $this->sendReq($path,$aData);
        if(isset($jRes['errCode']) && $jRes['errCode'] === 0) return true;
        return  false;
    }

    /**
     * @throws AppException
     */
    function authUserToken($userId,int $platform): false|array
    {
        $path = '/auth/user_token';
        $aData['users'] = [
            'platformID' => $platform,
            'userID' => $this->genImUid($userId),
        ];
        $jRes = $this->sendReq($path,$aData);
        if(isset($jRes['errCode']) && $jRes['errCode'] === 0){
            return [
                'token' => $jRes['token'],
                'expireTimeSeconds' => $jRes['expireTimeSeconds'],
            ];
        }
        return  false;
    }

    function getSecret()
    {
        return Env::get('IM_SECRET');
    }

    function getUrl(): string
    {
        return rtrim(Env::get('IM_URL'),'/');
    }

    /**
     * @throws AppException
     */
    function sendReq(string $path,array $aData = [])
    {
        if (!isset($aData['secret'])) $aData['secret'] = $this->getSecret();
        $resp = Http::post($this->getUrl().$path,$aData);
        if(!$resp->ok()) throw new AppException('im request error');
        return $resp->json();
    }

    function genImUid($userId): string
    {
        return Im::USER_PREFIX.$userId;
    }
}