<?php

namespace App\Service;

use App\Const\RedisConst;
use App\Const\VrCode;
use App\Exceptions\AppException;
use App\Tools\Tools;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Redis;

class VrCodeService
{
    public $sKey = null;
    public $sCode = null;
    public $sPhoneArea = null;
    public $sPhone = null;
    public $iType = null;
    public $iUid = null;

    public function getSKey(): null
    {
        return $this->sKey;
    }

    public function setSKey(null $sKey): void
    {
        $this->sKey = $sKey;
    }

    public function getsCode(): null
    {
        return $this->sCode;
    }

    public function setsCode(null $sCode): void
    {
        $this->sCode = $sCode;
    }

    public function getSPhoneArea(): null
    {
        return $this->sPhoneArea;
    }

    public function setSPhoneArea(null $sPhoneArea): void
    {
        $this->sPhoneArea = $sPhoneArea;
    }

    public function getSPhone(): null
    {
        return $this->sPhone;
    }

    public function setSPhone(null $sPhone): void
    {
        $this->sPhone = $sPhone;
    }

    public function getIType(): null
    {
        return $this->iType;
    }

    /**
     * @throws AppException
     */
    public function setIType(null $iType): void
    {
        if(!in_array($iType,VrCode::TOPIC)) throw new AppException('invalid sms type');
        $this->iType = $iType;
    }

    public function getIUid(): null
    {
        return $this->iUid;
    }

    public function setIUid(null $iUid): void
    {
        $this->iUid = $iUid;
    }

    function sendSmsToPhone(): bool
    {
        return true;
    }

    /**
     * @throws AppException
     */
    function sendCode(): void
    {
        $this->sKey = $this->genKey();
        $this->sCode = $this->genCode();
        if(!$this->sendSmsToPhone()) throw new AppException('send sms failed');
        $this->setCodeToCache();
    }

    /**
     * @throws AppException
     */
    function genKey(): false|string
    {
        if(!in_array($this->iType,VrCode::TOPIC_PREFIX)) throw new AppException('invalid sms type');
        if($this->iType == VrCode::TOPIC_REGISTER) {
            return VrCode::TOPIC_PREFIX[VrCode::TOPIC_REGISTER] . md5($this->sPhoneArea . $this->sPhone);
        }else {
            return VrCode::TOPIC_PREFIX[VrCode::TOPIC_REGISTER] . $this->iUid;
        }
    }

    function genCode(): string
    {
        return (string)Tools::getRandNum();
    }

    function setCodeToCache()
    {
        return Redis::set($this->sKey,$this->sCode,VrCode::REDIS_CACHE_EXPIRE);
    }

    /**
     * @throws AppException
     */
    function getCodeFromCache()
    {
        return Redis::get($this->genKey());
    }

    function checkCode($sReqCode): bool
    {
        $sCode = $this->getCodeFromCache();
        if(empty($sCode)) return false;
        if($sCode != $sReqCode) return false;
        return true;
    }


}