package models

import (
	"errors"
	"eta/eta_index_lib/utils"
	"fmt"
	"github.com/beego/beego/v2/client/orm"
	"strings"
	"time"
)

// EdbDataPredictCalculateZjpj 直接拼接数据结构体
type EdbDataPredictCalculateZjpj struct {
	EdbDataId     int `orm:"column(edb_data_id);pk"`
	EdbInfoId     int
	EdbCode       string
	DataTime      string
	Value         float64
	Status        int
	CreateTime    time.Time
	ModifyTime    time.Time
	DataTimestamp int64
}

// SavePredictCalculateZjpj 新增直接拼接数据
func SavePredictCalculateZjpj(req *EdbInfoCalculateBatchSaveReq, firstEdbInfo, secondEdbInfo *EdbInfo, edbCode, uniqueCode string, sysUserId int, sysUserRealName string) (edbInfo *EdbInfo, latestDateStr string, latestValue float64, err error) {
	o := orm.NewOrm()
	to, err := o.Begin()
	if err != nil {
		return
	}
	defer func() {
		if err != nil {
			fmt.Println("SavePredictCalculateZjpj,Err:" + err.Error())
			_ = to.Rollback()
		} else {
			_ = to.Commit()
		}
	}()
	var existItemA, existItemB *EdbInfoCalculateMapping
	if req.EdbInfoId <= 0 {
		edbInfo = &EdbInfo{
			EdbInfoType:      1,
			SourceName:       "预测直接拼接",
			Source:           utils.DATA_SOURCE_PREDICT_CALCULATE_ZJPJ,
			EdbCode:          edbCode,
			EdbName:          req.EdbName,
			EdbNameSource:    req.EdbName,
			Frequency:        req.Frequency,
			Unit:             req.Unit,
			StartDate:        firstEdbInfo.StartDate,
			EndDate:          firstEdbInfo.EndDate,
			ClassifyId:       req.ClassifyId,
			SysUserId:        sysUserId,
			SysUserRealName:  sysUserRealName,
			UniqueCode:       uniqueCode,
			CreateTime:       time.Now(),
			ModifyTime:       time.Now(),
			CalculateFormula: req.Formula,
			EdbType:          2,
		}
		newEdbInfoId, tmpErr := to.Insert(edbInfo)
		if tmpErr != nil {
			err = tmpErr
			return
		}
		edbInfo.EdbInfoId = int(newEdbInfoId)
		//关联关系
		//第一个指标
		{
			existItemA = &EdbInfoCalculateMapping{
				EdbInfoCalculateMappingId: 0,
				EdbInfoId:                 edbInfo.EdbInfoId,
				Source:                    edbInfo.Source,
				SourceName:                edbInfo.SourceName,
				EdbCode:                   edbInfo.EdbCode,
				FromEdbInfoId:             firstEdbInfo.EdbInfoId,
				FromEdbCode:               firstEdbInfo.EdbCode,
				FromEdbName:               firstEdbInfo.EdbName,
				FromSource:                firstEdbInfo.Source,
				FromSourceName:            firstEdbInfo.SourceName,
				FromTag:                   "A",
				Sort:                      1,
				CreateTime:                time.Now(),
				ModifyTime:                time.Now(),
			}
			insertId, tmpErr := to.Insert(existItemA)
			if tmpErr != nil {
				err = tmpErr
				return
			}
			existItemA.EdbInfoCalculateMappingId = int(insertId)
		}

		//第二个指标
		{
			existItemB = &EdbInfoCalculateMapping{
				EdbInfoCalculateMappingId: 0,
				EdbInfoId:                 edbInfo.EdbInfoId,
				Source:                    edbInfo.Source,
				SourceName:                edbInfo.SourceName,
				EdbCode:                   edbInfo.EdbCode,
				FromEdbInfoId:             secondEdbInfo.EdbInfoId,
				FromEdbCode:               secondEdbInfo.EdbCode,
				FromEdbName:               secondEdbInfo.EdbName,
				FromSource:                secondEdbInfo.Source,
				FromSourceName:            secondEdbInfo.SourceName,
				FromTag:                   "B",
				Sort:                      1,
				CreateTime:                time.Now(),
				ModifyTime:                time.Now(),
			}
			insertId, tmpErr := to.Insert(existItemB)
			if tmpErr != nil {
				err = tmpErr
				return
			}
			existItemB.EdbInfoCalculateMappingId = int(insertId)
		}
	} else {
		edbInfo, err = GetEdbInfoById(req.EdbInfoId)
		if err != nil {
			return
		}
		latestDateStr = edbInfo.LatestDate
		latestValue = edbInfo.LatestValue

		nowEdbInfo := *edbInfo // 现在的指标信息

		//修改指标信息
		edbInfo.EdbName = req.EdbName
		edbInfo.EdbNameSource = req.EdbName
		edbInfo.Frequency = req.Frequency
		edbInfo.Unit = req.Unit
		edbInfo.ClassifyId = req.ClassifyId
		edbInfo.CalculateFormula = req.Formula
		edbInfo.ModifyTime = time.Now()
		_, err = to.Update(edbInfo, "EdbName", "EdbNameSource", "Frequency", "Unit", "ClassifyId", "CalculateFormula", "ModifyTime")
		if err != nil {
			return
		}

		var existCondition string
		var existPars []interface{}
		existCondition += " AND edb_info_id=? "
		existPars = append(existPars, edbInfo.EdbInfoId)

		//查询出所有的关联指标
		var existList []*EdbInfoCalculateMapping
		existList, err = GetEdbInfoCalculateListByCondition(existCondition, existPars)
		if err != nil {
			err = fmt.Errorf("判断指标是否改变失败,Err:" + err.Error())
			return
		}

		for _, existItem := range existList {
			if existItem.FromTag == "A" {
				existItemA = existItem
			} else if existItem.FromTag == "B" {
				existItemB = existItem
			}
		}
		if existItemA == nil {
			err = errors.New("原拼接日期之前的指标不存在")
			return
		}
		if existItemB == nil {
			err = errors.New("原拼接日期之后的指标不存在")
			return
		}

		// 是否需要删除数据重新计算
		isNeedCalculateData := false

		// 如果截止日期变更，那么需要重新计算
		if req.Formula != nowEdbInfo.CalculateFormula {
			isNeedCalculateData = true
		}
		//第一个指标数据
		{
			// 如果指标变了，那么需要删除关系，并重新计算
			if existItemA.FromEdbInfoId != firstEdbInfo.EdbInfoId {
				//删除之前的A指标关联关系
				sql := ` DELETE FROM edb_info_calculate_mapping WHERE edb_info_id = ? and from_edb_info_id = ?`
				_, err = to.Raw(sql, edbInfo.EdbInfoId, existItemA.FromEdbInfoId).Exec()
				if err != nil {
					err = fmt.Errorf("删除拼接日期之前的指标关联关系失败,Err:" + err.Error())
					return
				}
			}
		}

		//第二个指标数据
		{
			// 如果指标变了，那么需要删除关系，并重新计算
			if existItemB.FromEdbInfoId != secondEdbInfo.EdbInfoId {
				//删除之前的B指标关联关系
				sql := ` DELETE FROM edb_info_calculate_mapping WHERE edb_info_id = ? and from_edb_info_id = ?`
				_, err = to.Raw(sql, edbInfo.EdbInfoId, existItemB.FromEdbInfoId).Exec()
				if err != nil {
					err = fmt.Errorf("删除拼接日期之后的指标关联关系失败,Err:" + err.Error())
					return
				}
			}
		}
		if existItemA.FromEdbInfoId != firstEdbInfo.EdbInfoId {
			//添加新的指标关系
			{
				existItemA = &EdbInfoCalculateMapping{
					EdbInfoCalculateMappingId: 0,
					EdbInfoId:                 edbInfo.EdbInfoId,
					Source:                    edbInfo.Source,
					SourceName:                edbInfo.SourceName,
					EdbCode:                   edbInfo.EdbCode,
					FromEdbInfoId:             firstEdbInfo.EdbInfoId,
					FromEdbCode:               firstEdbInfo.EdbCode,
					FromEdbName:               firstEdbInfo.EdbName,
					FromSource:                firstEdbInfo.Source,
					FromSourceName:            firstEdbInfo.SourceName,
					FromTag:                   "A",
					Sort:                      1,
					CreateTime:                time.Now(),
					ModifyTime:                time.Now(),
				}
				insertId, tmpErr := to.Insert(existItemA)
				if tmpErr != nil {
					err = tmpErr
					return
				}
				existItemA.EdbInfoCalculateMappingId = int(insertId)

				isNeedCalculateData = true
			}
		}

		if existItemB.FromEdbInfoId != secondEdbInfo.EdbInfoId {
			// 添加新的指标关联关系
			existItemB = &EdbInfoCalculateMapping{
				EdbInfoCalculateMappingId: 0,
				EdbInfoId:                 edbInfo.EdbInfoId,
				Source:                    edbInfo.Source,
				SourceName:                edbInfo.SourceName,
				EdbCode:                   edbInfo.EdbCode,
				FromEdbInfoId:             secondEdbInfo.EdbInfoId,
				FromEdbCode:               secondEdbInfo.EdbCode,
				FromEdbName:               secondEdbInfo.EdbName,
				FromSource:                secondEdbInfo.Source,
				FromSourceName:            secondEdbInfo.SourceName,
				FromTag:                   "B",
				Sort:                      2,
				CreateTime:                time.Now(),
				ModifyTime:                time.Now(),
			}
			insertId, tmpErr := to.Insert(existItemB)
			if tmpErr != nil {
				err = tmpErr
				return
			}
			existItemB.EdbInfoCalculateMappingId = int(insertId)

			isNeedCalculateData = true
		}
		// 如果需要重新计算，那么先删除所有的指标数据，然后再重新计算
		if isNeedCalculateData {
			// 删除之前所有的指标数据
			tableName := GetEdbDataTableName(edbInfo.Source, edbInfo.SubSource)
			sql := fmt.Sprintf(` DELETE FROM %s WHERE edb_info_id = ? `, tableName)
			_, err = to.Raw(sql, edbInfo.EdbInfoId).Exec()
			if err != nil {
				err = fmt.Errorf("删除历史数据失败,Err:" + err.Error())
				return
			}
		} else {
			return
		}
	}

	//拼接数据
	latestDateStr, latestValue, err = refreshAllPredictCalculateZjpj(to, edbInfo, firstEdbInfo, secondEdbInfo)

	return
}

// RefreshAllPredictCalculateZjpj 刷新所有 直接拼接 数据
func RefreshAllPredictCalculateZjpj(edbInfo *EdbInfo) (latestDateStr string, latestValue float64, err error) {
	o := orm.NewOrm()
	to, err := o.Begin()
	defer func() {
		if err != nil {
			fmt.Println("refreshAllPredictCalculateZjpj,Err:" + err.Error())
			_ = to.Rollback()
		} else {
			_ = to.Commit()
		}
	}()
	//查询关联指标信息
	var existCondition string
	var existPars []interface{}
	existCondition += " AND edb_info_id=? "
	existPars = append(existPars, edbInfo.EdbInfoId)
	existList, err := GetEdbInfoCalculateListByCondition(existCondition, existPars)
	if err != nil {
		err = fmt.Errorf("判断指标是否改变失败,Err:" + err.Error())
		return
	}

	var existItemA, existItemB *EdbInfoCalculateMapping
	for _, existItem := range existList {
		if existItem.FromTag == "A" {
			existItemA = existItem
		} else if existItem.FromTag == "B" {
			existItemB = existItem
		}
	}
	if existItemA == nil {
		err = errors.New("原拼接日期之前的指标不存在")
		return
	}
	if existItemB == nil {
		err = errors.New("原拼接日期之后的指标不存在")
		return
	}

	fromEdbInfo, err := GetEdbInfoById(existItemA.FromEdbInfoId)
	if err != nil {
		err = fmt.Errorf("GetEdbInfoById Err:" + err.Error())
		return
	}

	secondEdbInfo, err := GetEdbInfoById(existItemB.FromEdbInfoId)
	if err != nil {
		err = fmt.Errorf("GetEdbInfoById Err:" + err.Error())
		return
	}
	// 刷新数据
	latestDateStr, latestValue, err = refreshAllPredictCalculateZjpj(to, edbInfo, fromEdbInfo, secondEdbInfo)

	return
}

// refreshAllPredictCalculateZjpj 刷新所有 直接拼接 数据
func refreshAllPredictCalculateZjpj(to orm.TxOrmer, edbInfo, firstEdbInfo, secondEdbInfo *EdbInfo) (latestDateStr string, latestValue float64, err error) {
	//查询当前指标现有的数据
	var dataList []*EdbDataPredictCalculateZjpj
	sql := ` SELECT * FROM edb_data_predict_calculate_zjpj WHERE edb_info_id=? ORDER BY data_time DESC `
	_, err = to.Raw(sql, edbInfo.EdbInfoId).QueryRows(&dataList)
	if err != nil {
		return
	}
	if edbInfo.CalculateFormula <= secondEdbInfo.LatestDate {
		latestDateStr = secondEdbInfo.LatestDate
	} else {
		if edbInfo.CalculateFormula >= firstEdbInfo.LatestDate {
			latestDateStr = firstEdbInfo.LatestDate
		} else {
			latestDateStr = edbInfo.CalculateFormula
		}
	}
	var dateArr []string
	dataMap := make(map[string]*EdbDataPredictCalculateZjpj)
	removeDataTimeMap := make(map[string]int) //需要移除的日期数据
	for _, v := range dataList {
		dateArr = append(dateArr, v.DataTime)
		dataMap[v.DataTime] = v
		removeDataTimeMap[v.DataTime] = 1
	}

	addDataList := make([]*EdbDataPredictCalculateZjpj, 0)
	//第一个指标
	{
		var firstDataList []*EdbInfoSearchData
		firstDataList, err = GetPredictEdbDataListAllByStartDate(firstEdbInfo, 0, "")
		if err != nil {
			return
		}

		for _, v := range firstDataList {
			if v.DataTime >= edbInfo.CalculateFormula {
				continue
			}
			//校验待删除日期数据里面是否存在该元素，如果存在的话，那么移除该元素
			if _, ok := removeDataTimeMap[v.DataTime]; ok {
				delete(removeDataTimeMap, v.DataTime)
			}
			if latestDateStr == v.DataTime {
				latestValue = v.Value
			}
			//时间戳
			if edbData, ok := dataMap[v.DataTime]; ok {
				if edbData.Value != v.Value {
					//更新指标数据
					edbData.Value = v.Value
					_, _ = to.Update(edbData, "Value")
				}
			} else {
				//时间戳
				currentDate, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
				timestamp := currentDate.UnixNano() / 1e6

				edbDataZjpj := &EdbDataPredictCalculateZjpj{
					EdbInfoId:     edbInfo.EdbInfoId,
					EdbCode:       edbInfo.EdbCode,
					DataTime:      v.DataTime,
					Value:         v.Value,
					Status:        1,
					CreateTime:    time.Now(),
					ModifyTime:    time.Now(),
					DataTimestamp: timestamp,
				}
				addDataList = append(addDataList, edbDataZjpj)
			}
		}
	}

	//第二个指标
	{
		/*condition := ``
		pars := make([]interface{}, 0)

		condition += " AND data_time >= ? AND edb_info_id = ? "
		pars = append(pars, edbInfo.CalculateFormula, existItemB.FromEdbInfoId)

		//第二个指标的数据列表
		secondDataList, tmpErr := GetEdbDataListAllByTo(to, condition, pars, existItemB.FromSource, 0)
		if tmpErr != nil {
			return tmpErr
		}*/
		var secondDataList []*EdbInfoSearchData
		secondDataList, err = GetPredictEdbDataListAllByStartDate(secondEdbInfo, 0, edbInfo.CalculateFormula)
		if err != nil {
			return
		}
		for _, v := range secondDataList {
			//校验待删除日期数据里面是否存在该元素，如果存在的话，那么移除该元素
			if _, ok := removeDataTimeMap[v.DataTime]; ok {
				delete(removeDataTimeMap, v.DataTime)
			}
			if latestDateStr == v.DataTime {
				latestValue = v.Value
			}
			if edbData, ok := dataMap[v.DataTime]; ok {
				if edbData.Value != v.Value {
					//更新指标数据
					edbData.Value = v.Value
					edbData.ModifyTime = time.Now()
					_, tmpErr := to.Update(edbData, "Value", "ModifyTime")
					if tmpErr != nil {
						fmt.Println("tmpErr:", tmpErr)
						err = tmpErr
						return
					}
				}
			} else {
				//时间戳
				currentDate, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
				timestamp := currentDate.UnixNano() / 1e6

				edbDataZjpj := &EdbDataPredictCalculateZjpj{
					EdbInfoId:     edbInfo.EdbInfoId,
					EdbCode:       edbInfo.EdbCode,
					DataTime:      v.DataTime,
					Value:         v.Value,
					Status:        1,
					CreateTime:    time.Now(),
					ModifyTime:    time.Now(),
					DataTimestamp: timestamp,
				}
				addDataList = append(addDataList, edbDataZjpj)
			}
		}
	}

	//删除已经不存在的累计同比拼接指标数据（由于同比值当日的数据删除了）
	{
		removeDateList := make([]string, 0)
		for dateTime := range removeDataTimeMap {
			removeDateList = append(removeDateList, dateTime)
		}
		if len(removeDateList) > 0 {
			removeDateStr := strings.Join(removeDateList, `","`)
			removeDateStr = `"` + removeDateStr + `"`
			//如果拼接指标变更了，那么需要删除所有的指标数据
			tableName := GetEdbDataTableName(edbInfo.Source, edbInfo.SubSource)
			sql := fmt.Sprintf(` DELETE FROM %s WHERE edb_info_id = ? and data_time in (%s) `, tableName, removeDateStr)

			_, err = to.Raw(sql, edbInfo.EdbInfoId).Exec()
			if err != nil {
				err = fmt.Errorf("删除不存在的直接拼接指标数据失败,Err:" + err.Error())
				return
			}
		}
	}

	//数据入库
	if len(addDataList) > 0 {
		_, tmpErr := to.InsertMulti(len(addDataList), addDataList)
		if tmpErr != nil {
			err = tmpErr
			return
		}
	}
	return
}