package survey_token

import (
	"fmt"
	"surveyService/cache"
	"surveyService/response"
	"surveyService/util"
	"surveyService/validators"
	"time"

	jsoniter "github.com/json-iterator/go"
	"gogs.uu.mdfitnesscao.com/hys/sdk"
)

var json = jsoniter.ConfigCompatibleWithStandardLibrary

type Mechanism struct {
	*sdk.AuthMechanism
}

func InitMechanism(authMechanism *sdk.AuthMechanism) *Mechanism {
	return &Mechanism{authMechanism}
}

// 生成一个临时凭证
func (m *Mechanism) GenerateSurveyToken(surveyId, surveyResultId, extra string, expired int64) string {
	var tokenData = &validators.SurveyToken{
		Extra:          extra,
		SurveyId:       surveyId,
		MechanismId:    m.Mechanism.ID,
		SurveyResultId: surveyResultId,
	}
	token := util.RandString(12)
	cacheKey := fmt.Sprintf("survey-result:token:%s", token)
	expiredAt := time.Duration(expired) * time.Second
	// 保存到redis
	cacheErr := cache.Instance().Put(cacheKey, tokenData, expiredAt)
	if cacheErr != nil {
		return ""
	}
	return token
}

// 重新修改凭证里存储的数据
func RenewSurveyToken(token string, renewSurveyToken *validators.SurveyToken, expired int64) *response.ErrCode {
	tokenData, getErr := GetSurveyTokenData(token)
	if getErr != nil {
		return getErr
	}

	var renewTokenData = &validators.SurveyToken{
		Extra:          tokenData.Extra,
		SurveyId:       tokenData.SurveyId,
		MechanismId:    tokenData.MechanismId,
		SurveyResultId: renewSurveyToken.SurveyResultId,
	}
	cacheKey := fmt.Sprintf("survey-result:token:%s", token)
	expiredAt := time.Duration(expired) * time.Second
	// 保存到redis
	cacheErr := cache.Instance().Put(cacheKey, renewTokenData, expiredAt)
	if cacheErr != nil {
		return &response.ErrCode{
			Msg:  "数据更新失败",
			Code: response.ERROR,
		}
	}
	return nil
}

// 获取临时凭证的数据
func GetSurveyTokenData(token string) (*validators.SurveyToken, *response.ErrCode) {
	cacheKey := fmt.Sprintf("survey-result:token:%s", token)
	var tokenData *validators.SurveyToken
	tokenDataStr, cacheErr := cache.Instance().Get(cacheKey)
	if cacheErr != nil {
		return nil, &response.ErrCode{
			Msg:  "无效的凭证信息",
			Code: response.ERROR,
		}
	}
	json.UnmarshalFromString(tokenDataStr, &tokenData)
	return tokenData, nil
}

// 移除临时凭证
func RemoveSurveyToken(token string) {
	cacheKey := fmt.Sprintf("survey-result:token:%s", token)
	cache.Instance().Delete(cacheKey)
}