package captcha

import (
	"context"
	"picgo/corelib"
	"time"
)

// Store 存储验证码接口
type Store interface {
	// SetCode cid 当前id
	//	oid 旧id
	//	code 验证码
	//	expired 过期时间（毫秒）
	// return nil/error
	SetCode(cid string, oid string, code string, expired int)
	// GetCode  cid 当前id
	// return code
	GetCode(cid string) string
}

// SetCode 验证码保存到redis
func SetCode(cid string, code string, expired int64) (err error) {
	ctx := context.Background()
	cid = genRedisKey(cid)
	if err = corelib.RdbClient.Set(ctx, cid, code, time.Duration(expired)*time.Second).Err(); err != nil {
		return
	}
	return
}

// GetCode 从redis中查询验证码，查询之后删除
func GetCode(cid string) (code string, err error) {
	ctx := context.Background()
	cid = genRedisKey(cid)
	if code, err = corelib.RdbClient.Get(ctx, cid).Result(); err != nil {
		return
	}
	//rdb.Del(ctx, cid)
	return
}

// captcha缓存key拼接
func genRedisKey(id string) (res string) {
	return corelib.CaptchaKey + id
}