package kpler

import (
	"eta/eta_data_analysis/models"
	"eta/eta_data_analysis/services/alarm_msg"
	"eta/eta_data_analysis/utils"
	"fmt"
	"time"

	"github.com/patrickmn/go-cache"
)

func GetProducts(req models.KplerProductLibReq) (products []models.KplerProduct, err error) {
	token, err := GetKplerAccessToken(false)
	if err != nil {
		return nil, err
	}
	products, err = GetProductsByApi(req, token)
	if err != nil {
		if err.Error() == "Unauthorized" {
			token, err = GetKplerAccessToken(true)
			if err != nil {
				return 
			}
			products, err = GetProductsByApi(req, token)
			if err != nil {
				return 
			}
			return
		}
		return 
	}
	return 
}
//   token := ""
func GetKplerData(req models.KplerFlowDataLibReq) (ret *models.KplerFlowDataResp, err error) {
//   token := ""
//   flowDirection := "import"
//   granularity := "monthly"
//   split := "Destination%20Countries"
//   withIntraRegion := "true"
//   startDate := "2024-01-01"
//   endDate := "2025-06-30"
//   unit := "kbd"
//   products := "CPC%20Russia,Eastern%20Russia%20Crude,Western%20Russia%20Crude"
//   fromZones := ""
//   toZones := ""
//   onlyRealized := "true"
//   req = models.KplerFlowDataLibReq{
// 		Granularity: granularity,
// 		Split: split,
// 		Unit: unit,
// 		FlowDirection: flowDirection,
// 		FromZones: fromZones,
// 		ToZones: toZones,
// 		OnlyRealized: onlyRealized,
// 		WithIntraRegion: withIntraRegion,
// 		StartDate: startDate,
// 		EndDate: endDate,
// 		Products: products,
// 	}
    token, err := GetKplerAccessToken(false)
	if err != nil {
		return nil, err
	}
	ret, err = GetKplerDataByApi(req, token)
	if err != nil {
		fmt.Println("GetKplerDataByApi error", err)
		if err.Error() == "Unauthorized" {
			token, err = GetKplerAccessToken(true)
			if err != nil {
				err = fmt.Errorf("获取开普勒API-AccessToken失败, %v", err)
				return
			}
			ret, err = GetKplerDataByApi(req, token)
			if err != nil {
				fmt.Println("GetKplerDataByApi error", err)
				return nil, err
			}
			return
		}
		return nil, err
	}
	return
}

// GetKplerAccessToken 获取登录凭证
func GetKplerAccessToken(forceRefresh bool) (token string, err error) {
	defer func() {
		if err != nil {
			go alarm_msg.SendAlarmMsg("获取开普勒的登录凭证失败，ERR："+err.Error(), 3)
		}
	}()
	redisKey := "kpler_access_token"
	cacheClient := utils.CacheClient
	tokenTmp, ok := cacheClient.Get(redisKey)
	//如果从redis中accessToken 获取失败或者token为空了，再或者需要强制刷新了，那么重新获取accessToken
	if !ok || forceRefresh {
		token, err = refreshKplerAccessToken(cacheClient,redisKey)
		return
	}
	fmt.Println("tokenTmp", tokenTmp)
	if tokenTmp == nil {
		token, err = refreshKplerAccessToken(cacheClient,redisKey)
		return
	}
	token = tokenTmp.(string)
	return
}

// refreshKplerAccessToken 强制刷新获取登录凭证
func refreshKplerAccessToken(cacheClient *cache.Cache, redisKey string) (token string, err error) {
	defer func() {
		if err != nil {
			go alarm_msg.SendAlarmMsg("获取开普勒的登录凭证失败；ERR："+err.Error(), 3)
		}
	}()
	token, tmpErr := login()
	if tmpErr != nil {
		err = tmpErr
		return
	}

	expireTime := time.Now().Add(time.Hour * 24 * 30)

	//token存入redis
	//err = utils.Rc.Put(tokenRedisKey, token, time.Duration(expireTime.Unix()-600)*time.Second)
	// 本来是要设置下600s的过期时间，但因为不是强制刷新token，就不获取了
	cacheClient.Set(redisKey, token, time.Duration(expireTime.Unix())*time.Second)
	if err != nil {
		err = fmt.Errorf("获取开普勒的登录凭证成功；开普勒登录凭证存入redis失败，ERR：%s", err.Error())
		return
	}
	return
}