package services

import (
	"encoding/json"
	"errors"
	"fmt"
	"github.com/rdlucklib/rdluck_tools/http"
	"github.com/shopspring/decimal"
	"hongze/hongze_edb_lib/utils"
	"reflect"
)

type EdbDataFromThs struct {
	DataVol   int64       `json:"dataVol"`
	Errmsg    string      `json:"errmsg"`
	Errorcode int64       `json:"errorcode"`
	Perf      interface{} `json:"perf"`
	Tables    []Tables    `json:"tables"`
}

// Tables 表格数据
type Tables struct {
	ID    []string  `json:"id"`
	Time  []string  `json:"time"`
	Value []float64 `json:"value"`
}

// EdbDataFromThsInterface 数据类型转为interface
type EdbDataFromThsInterface struct {
	DataVol   int64       `json:"dataVol"`
	Errmsg    string      `json:"errmsg"`
	Errorcode int64       `json:"errorcode"`
	Perf      interface{} `json:"perf"`
	Tables    []struct {
		ID    []string      `json:"id"`
		Time  []string      `json:"time"`
		Value []interface{} `json:"value"`
	} `json:"tables"`
}

func GetEdbDataFromThs(edbCode, startDate, endDate string) (item *EdbDataFromThs, err error) {
	return getEdbDataFromThs(edbCode, startDate, endDate, 0)
}

// getEdbDataFromThs 获取同花顺接口数据
func getEdbDataFromThs(edbCode, startDate, endDate string, num int) (item *EdbDataFromThs, err error) {
	thsUrl := utils.Hz_Wind_Data_Url + `edbInfo/ths?EdbCode=%s&StartDate=%s&EndDate=%s`
	thsUrl = fmt.Sprintf(thsUrl, edbCode, startDate, endDate)
	utils.FileLog.Info("thsUrl:" + thsUrl)
	body, err := http.Get(thsUrl)
	utils.FileLog.Info("ths result:" + string(body))
	if err != nil {
		err = errors.New(" Err:" + err.Error() + ";result:" + string(body))
		return
	}
	if string(body) == "null" {
		err = errors.New("同花顺数据获取异常:" + err.Error() + ";result:" + string(body))
		return
	}

	tmpItems := new(EdbDataFromThsInterface)
	err = json.Unmarshal(body, &tmpItems)
	if err != nil {
		err = errors.New("GetEdbDataFromThs json.Unmarshal Err:" + err.Error())
		return
	}
	if tmpItems.Errorcode != 0 {

		//session has expired,please re-login after using the system
		//如果是同花顺登录session失效了，那么就重新请求获取数据
		if tmpItems.Errorcode == -1020 && num == 0 {
			return getEdbDataFromThs(edbCode, startDate, endDate, 1)
		}

		err = errors.New(string(body))
		return
	}

	// 因为table里面的value有的时候返回的是string,有的是float64，所以需要用interface来反射取值
	tablesList := make([]Tables, 0)
	for _, table := range tmpItems.Tables {
		tableIdList := make([]string, 0)
		tableTimeList := make([]string, 0)
		tableValueList := make([]float64, 0)

		for _, tableId := range table.ID {
			tableIdList = append(tableIdList, tableId)
		}
		for _, tableTime := range table.Time {
			tableTimeList = append(tableTimeList, tableTime)
		}

		//指标数据
		for _, tmpValue := range table.Value {
			var tableValue float64
			if reflect.TypeOf(tmpValue).Kind() == reflect.Float64 {
				tableValue = reflect.ValueOf(tmpValue).Float()
			} else if reflect.TypeOf(tmpValue).Kind() == reflect.String {
				tmpTableValue, tmpErr := decimal.NewFromString(reflect.ValueOf(tmpValue).String())
				if tmpErr != nil {
					err = tmpErr
					return
				}
				tableValue, _ = tmpTableValue.Truncate(4).Float64()
			} else {
				err = errors.New("错误的数据类型" + reflect.TypeOf(tmpValue).String())
				return
			}
			tableValueList = append(tableValueList, tableValue)
		}
		tmpTable := Tables{
			ID:    tableIdList,
			Time:  tableTimeList,
			Value: tableValueList,
		}
		tablesList = append(tablesList, tmpTable)
	}
	item = &EdbDataFromThs{
		DataVol:   tmpItems.DataVol,
		Errmsg:    tmpItems.Errmsg,
		Errorcode: tmpItems.Errorcode,
		Perf:      tmpItems.Perf,
		Tables:    tablesList,
	}
	return item, nil
}