package fwh_pro

import (
	"encoding/json"
	"errors"
	"fmt"
	"fwh-toolbox-server/config"
	"fwh-toolbox-server/dto"
	"net/url"
	"time"
)

// 查询站点功率流信息
func querySitePowerFlow(sn string, day time.Time) ([]byte, error) {
	// 构造 query 参数
	params := url.Values{}
	params.Add("gatewayId", sn)
	params.Add("dayTime", day.Format(time.DateOnly)) // 会自动 URL 编码

	reqUrl := fmt.Sprintf("https://%s/api-energy/power/getFhpPowerByDayOld", config.FWH_ENERGY)
	response, err := FwhHttpGet(reqUrl, params)
	if err != nil {
		return nil, err
	}
	return response.Body, nil
}

// 从fwh_pro获取站点功率流
func QuerySitePowerFlow(site string, day time.Time) (dto.SitePowerFlowResponse, error) {
	resByte, err := querySitePowerFlow(site, day)
	if err != nil {
		return dto.SitePowerFlowResponse{}, err
	}
	var sitePowerFlowRes dto.SitePowerFlowResponse
	// 反序列化（unmarshal）
	jsonErr := json.Unmarshal(resByte, &sitePowerFlowRes)
	if jsonErr != nil {
		return dto.SitePowerFlowResponse{}, jsonErr
	}

	if sitePowerFlowRes.Code == 401 {
		// TODO 尝试重新登录
		return dto.SitePowerFlowResponse{}, errors.New("certification expired")
	}

	return sitePowerFlowRes, nil
}