package services

import (
	"encoding/json"
	"eta/eta_index_lib/logic"
	"eta/eta_index_lib/models"
	"eta/eta_index_lib/services/alarm_msg"
	"eta/eta_index_lib/utils"
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
	"time"
)

var (
	PCSGBloombergGeneralIndexDataUrl = "/api/pcsg/bloomberg/index_data/general" // 通用指标API
)

type PCSGBloombergApiReq struct {
	TaskKey   string `description:"任务key"`
	Frequency string `description:"指标频度"`
}

type PCSGBloombergTask struct {
	TaskKey         string `json:"TaskKey"`
	Frequency       string `json:"Frequency"`
	VCode           bool   `json:"VCode"`
	ExtraLetter     string `json:"ExtraLetter"`
	IndexNamePrefix string `json:"IndexNamePrefix" description:"指标名称前缀"`
	IndexCodeSuffix string `json:"IndexCodeSuffix" description:"指标编码后缀"`
}

// LoadPCSGBloombergTask 加载配置
func LoadPCSGBloombergTask() (tasks []*PCSGBloombergTask, err error) {
	filePath := "./static/pcsg_task.json"
	b, e := ioutil.ReadFile(filePath)
	if e != nil {
		err = fmt.Errorf("读取配置失败, err: %v", e)
		return
	}
	if e = json.Unmarshal(b, &tasks); e != nil {
		err = fmt.Errorf("解析配置失败, err: %v", e)
		return
	}
	return
}

// GetPCSGBloombergGeneralIndexFromBridge 获取通用数据类型指标
func GetPCSGBloombergGeneralIndexFromBridge(params PCSGBloombergApiReq) (indexes []models.BaseFromBloombergApiIndexAndData, err error) {
	defer func() {
		if err != nil {
			tips := fmt.Sprintf("GetPCSGBloombergGeneralIndexFromBridge-获取指标数据失败, err: %s", err.Error())
			utils.FileLog.Info(tips)
			go alarm_msg.SendAlarmMsg(tips, 3)
		}
	}()

	p, e := json.Marshal(params)
	if e != nil {
		err = fmt.Errorf("params json marshal err: %v", e)
		return
	}

	url := fmt.Sprint(utils.EtaBridgeUrl, PCSGBloombergGeneralIndexDataUrl)
	body := ioutil.NopCloser(strings.NewReader(string(p)))
	client := &http.Client{}
	req, e := http.NewRequest("POST", url, body)
	if e != nil {
		err = fmt.Errorf("http create request err: %s", e.Error())
		return
	}

	checkToken := utils.MD5(utils.EtaBridgeAppNameEn + utils.EtaBridgeMd5Key)
	contentType := "application/json;charset=utf-8"
	req.Header.Set("Content-Type", contentType)
	req.Header.Set("Authorization", checkToken)
	resp, e := client.Do(req)
	if e != nil {
		err = fmt.Errorf("http client do err: %s", e.Error())
		return
	}
	defer func() {
		_ = resp.Body.Close()
	}()
	b, e := ioutil.ReadAll(resp.Body)
	if e != nil {
		err = fmt.Errorf("resp body read err: %s", e.Error())
		return
	}
	if len(b) == 0 {
		err = fmt.Errorf("resp body is empty")
		return
	}
	// 生产环境解密
	if utils.RunMode == "release" {
		str := string(b)
		str = strings.Trim(str, `"`)
		b = utils.DesBase64Decrypt([]byte(str), utils.EtaBridgeDesKey)
	}

	result := new(models.BridgePCSGBloombergResultData)
	if e = json.Unmarshal(b, &result); e != nil {
		err = fmt.Errorf("result unmarshal err: %s\nresult: %s", e.Error(), string(b))
		return
	}
	if result.Code != 200 {
		err = fmt.Errorf("result: %s", string(b))
		return
	}
	indexes = result.Data
	return
}

// PCSGWrite2BaseBloomberg 写入彭博数据源
func PCSGWrite2BaseBloomberg(indexes []models.BaseFromBloombergApiIndexAndData, isVCode bool, extraLetter, namePrefix, codeSuffix string) (err error) {
	defer func() {
		if err != nil {
			tips := fmt.Sprintf("PCSGWrite2BaseBloomberg-写入彭博数据源失败, err: %s", err.Error())
			utils.FileLog.Info(tips)
			go alarm_msg.SendAlarmMsg(tips, 3)
		}
	}()
	// 这里挡一下...万一没限制加进库了不好删...
	if isVCode && extraLetter == "" {
		err = fmt.Errorf("中间字母有误")
		return
	}

	for _, v := range indexes {
		if v.IndexCode == "" {
			continue
		}
		// 无数据的情况不处理
		if len(v.Data) == 0 {
			continue
		}
		if isVCode {
			v.IndexCode = utils.InsertStr2StrIdx(v.IndexCode, " ", 1, extraLetter)
		}
		// 指标编码后缀
		if codeSuffix != "" {
			v.IndexCode = fmt.Sprintf("%s %s", v.IndexCode, codeSuffix)
		}

		// 指标是否存在
		index, e := models.GetBaseFromBloombergIndexByCode(v.IndexCode)
		if e != nil && e.Error() != utils.ErrNoRow() {
			err = fmt.Errorf("获取Bloomberg原始指标失败, err: %s", e.Error())
			return
		}

		// 指标名称+前缀
		indexName := v.IndexName
		if indexName != "" && namePrefix != "" {
			indexName = fmt.Sprint(namePrefix, indexName)
		}

		// 新增指标
		if index == nil {
			newIndex := new(models.BaseFromBloombergIndex)
			newIndex.IndexCode = v.IndexCode
			newIndex.IndexName = indexName
			newIndex.Unit = v.Unit
			newIndex.Source = utils.DATA_SOURCE_BLOOMBERG
			newIndex.Frequency = v.Frequency
			newIndex.CreateTime = time.Now().Local()
			newIndex.ModifyTime = time.Now().Local()
			if e = newIndex.Create(); e != nil {
				err = fmt.Errorf("新增Bloomberg原始指标失败, err: %s", e.Error())
				return
			}
			index = newIndex
		} else {
			// 无指标名称的情况下更新指标基础信息
			if index.IndexName == "" {
				index.IndexName = indexName
				index.Unit = v.Unit
				index.Frequency = v.Frequency
				index.ModifyTime = time.Now().Local()
				if e = index.Update([]string{"IndexName", "Unit", "Frequency", "ModifyTime"}); e != nil {
					err = fmt.Errorf("更新Bloomberg原始指标失败, err: %s", e.Error())
					return
				}
			}
		}

		// 更新指标数据
		var cond string
		var pars []interface{}
		cond += ` AND index_code = ? `
		pars = append(pars, v.IndexCode)
		indexData, e := models.GetBaseFromBloombergDataByCondition(cond, pars)
		if e != nil {
			err = fmt.Errorf("获取Bloomberg历史数据失败, err: %s", e.Error())
			return
		}
		dateExist := make(map[string]*models.BaseFromBloombergData)
		newValExist := make(map[string]bool)
		if len(indexData) > 0 {
			for _, d := range indexData {
				strDate := d.DataTime.Format(utils.FormatDate)
				dateExist[strDate] = d
			}
		}

		// 筛选新增/更新数据
		updateData := make([]*models.BaseFromBloombergData, 0)
		insertData := make([]*models.BaseFromBloombergData, 0)
		for _, d := range v.Data {
			strDate := d.DataTime.Format(utils.FormatDate)
			originData := dateExist[strDate]
			if originData != nil {
				if utils.FloatAlmostEqual(originData.Value, d.Value) {
					continue
				}
				originData.Value = d.Value
				originData.ModifyTime = time.Now().Local()
				updateData = append(updateData, originData)
			} else {
				// 新增的数据去重
				if newValExist[strDate] {
					continue
				}
				newValExist[strDate] = true
				newData := new(models.BaseFromBloombergData)
				newData.BaseFromBloombergIndexId = index.BaseFromBloombergIndexId
				newData.IndexCode = index.IndexCode
				newData.DataTime = d.DataTime
				newData.Value = d.Value
				newData.CreateTime = time.Now()
				newData.ModifyTime = time.Now()
				timestamp := d.DataTime.UnixNano() / 1e6
				newData.DataTimestamp = int(timestamp)
				insertData = append(insertData, newData)
			}
		}
		if e = models.MultiInsertOrUpdateBaseFromBloombergData(insertData, updateData); e != nil {
			err = fmt.Errorf("新增/更新Bloomberg指标数据失败, err: %s", e.Error())
			return
		}

		// 更新指标开始结束时间
		minMax, e := models.GetBaseFromBloombergIndexMinMax(index.IndexCode)
		if e == nil && minMax != nil {
			e = models.ModifyBaseFromBloombergIndexMinMax(index.IndexCode, minMax)
			if e != nil {
				err = fmt.Errorf("更新Bloomberg开始结束时间失败, err: %s", e.Error())
				return
			}
		}

		// 同步刷新指标库
		go func() {
			edb, e := models.GetEdbInfoByEdbCode(utils.DATA_SOURCE_BLOOMBERG, index.IndexCode)
			if e != nil && e.Error() != utils.ErrNoRow() {
				utils.FileLog.Info("获取Bloomberg指标库信息失败, err: " + e.Error())
				return
			}
			if edb != nil {
				_, _, e = logic.RefreshBaseEdbInfo(edb, ``)
				if e != nil {
					utils.FileLog.Info(fmt.Sprintf("Bloomberg RefreshBaseEdbInfo, edbCode: %s, err: %v", index.IndexCode, e))
					return
				}
			}
		}()
	}
	return
}