package models

import (
	"eta/eta_index_lib/global"
	"eta/eta_index_lib/utils"
	"fmt"

	"gorm.io/gorm"
	"strings"
	"time"
)

// EdbDataCalculateZjpj 直接拼接数据结构体
type EdbDataCalculateZjpj struct {
	EdbDataId     int       `gorm:"primaryKey;autoIncrement;column:edb_data_id"`
	EdbInfoId     int       `gorm:"column:edb_info_id" description:"指标ID"`
	EdbCode       string    `gorm:"column:edb_code" description:"指标编码"`
	DataTime      string    `gorm:"column:data_time" description:"数据日期"`
	Value         float64   `gorm:"column:value" description:"数据值"`
	Status        int       `gorm:"column:status" description:"状态"`
	CreateTime    time.Time `gorm:"column:create_time" description:"创建时间"`
	ModifyTime    time.Time `gorm:"column:modify_time" description:"修改时间"`
	DataTimestamp int64     `gorm:"column:data_timestamp" description:"数据日期时间戳"`
}

func (m *EdbDataCalculateZjpj) AfterFind(db *gorm.DB) (err error) {
	m.DataTime = utils.GormDateStrToDateStr(m.DataTime)

	return
}

// AddCalculateZjpj 新增直接拼接数据
func AddCalculateZjpj(req *EdbInfoCalculateBatchSaveReq, firstEdbInfo, secondEdbInfo *EdbInfo, edbCode, uniqueCode string, sysUserId int, sysUserRealName string) (edbInfo *EdbInfo, err error) {
	to := global.DEFAULT_DB.Begin()
	defer func() {
		if err != nil {
			to.Rollback()
		} else {
			to.Commit()
		}
	}()
	if req.EdbInfoId <= 0 {
		edbInfo = &EdbInfo{
			SourceName:       "直接拼接",
			Source:           utils.DATA_SOURCE_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,
			EdbNameEn:        req.EdbName,
			UnitEn:           req.Unit,
			EdbType:          2,
			Sort:             GetAddEdbMaxSortByClassifyId(req.ClassifyId, utils.EDB_INFO_TYPE),
		}
		tmpErr := to.Create(edbInfo).Error
		if tmpErr != nil {
			err = tmpErr
			return
		}

	} else {
		edbInfo, err = GetEdbInfoById(req.EdbInfoId)
		if err != nil {
			return
		}
		//查询
		tmpEdbInfo, tmpErr := GetEdbInfoById(edbInfo.EdbInfoId)
		if tmpErr != nil {
			err = tmpErr
			return
		}
		tmpEdbInfo.EdbName = req.EdbName
		tmpEdbInfo.ClassifyId = req.ClassifyId
		tmpEdbInfo.Frequency = req.Frequency
		tmpEdbInfo.Unit = req.Unit
		tmpEdbInfo.CalculateFormula = req.Formula

		edbInfo = tmpEdbInfo

		//删除指标数据
		dataTableName := GetEdbDataTableName(utils.DATA_SOURCE_CALCULATE_ZJPJ, utils.DATA_SUB_SOURCE_EDB)
		fmt.Println("dataTableName:" + dataTableName)
		deleteSql := ` DELETE FROM %s WHERE edb_info_id=? `
		deleteSql = fmt.Sprintf(deleteSql, dataTableName)
		err = to.Exec(deleteSql, req.EdbInfoId).Error
		if err != nil {
			return
		}

		//删除指标关系
		sql := ` DELETE FROM edb_info_calculate_mapping WHERE edb_info_id=? `
		err = to.Exec(sql, edbInfo.EdbInfoId).Error
	}

	//关联关系

	var existItemA, existItemB *EdbInfoCalculateMapping
	//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(),
			FromSubSource:             firstEdbInfo.SubSource,
		}
		tmpErr := to.Create(existItemA).Error
		if tmpErr != nil {
			err = tmpErr
			return
		}
	}

	//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(),
			FromSubSource:             secondEdbInfo.SubSource,
		}
		tmpErr := to.Create(existItemB).Error
		if tmpErr != nil {
			err = tmpErr
			return
		}
	}

	//拼接数据
	err = refreshAllCalculateZjpj(to, edbInfo, existItemA, existItemB)

	return
}

// EditCalculateZjpj 编辑直接拼接数据
func EditCalculateZjpj(req *EdbInfoCalculateBatchEditReq, edbInfo, firstEdbInfo, secondEdbInfo *EdbInfo) (err error) {
	to := global.DEFAULT_DB.Begin()
	defer func() {
		if err != nil {
			to.Rollback()
		} else {
			to.Commit()
		}
	}()

	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.EdbNameEn = req.EdbNameEn
	edbInfo.UnitEn = req.UnitEn
	edbInfo.ModifyTime = time.Now()
	err = to.Model(edbInfo).Select([]string{"EdbName", "EdbNameSource", "Frequency", "Unit", "ClassifyId", "CalculateFormula", "ModifyTime", "EdbNameEn", "UnitEn"}).Updates(edbInfo).Error
	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
	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
		}
	}

	// 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.Exec(sql, edbInfo.EdbInfoId, existItemA.FromEdbInfoId).Error
			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
			}

			//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(),
					FromSubSource:             firstEdbInfo.SubSource,
				}
				tmpErr := to.Create(existItemA).Error
				if tmpErr != nil {
					err = tmpErr
					return
				}
				isNeedCalculateData = true
			}
		}
	}

	//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.Exec(sql, edbInfo.EdbInfoId, existItemB.FromEdbInfoId).Error
			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
			}

			// 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(),
				FromSubSource:             secondEdbInfo.SubSource,
			}
			tmpErr := to.Create(existItemB).Error
			if tmpErr != nil {
				err = tmpErr
				return
			}

			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.Exec(sql, edbInfo.EdbInfoId).Error
		if err != nil {
			err = fmt.Errorf("删除历史数据失败,Err:" + err.Error())
			return
		}

		err = refreshAllCalculateZjpj(to, edbInfo, existItemA, existItemB)
	}

	return
}

// RefreshAllCalculateZjpj 刷新所有 直接拼接 数据
func RefreshAllCalculateZjpj(edbInfo *EdbInfo) (err error) {
	to := global.DEFAULT_DB.Begin()
	defer func() {
		if err != nil {
			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
		}
	}
	// 刷新数据
	err = refreshAllCalculateZjpj(to, edbInfo, existItemA, existItemB)

	return
}

// refreshAllCalculateZjpj 刷新所有 直接拼接 数据
func refreshAllCalculateZjpj(to *gorm.DB, edbInfo *EdbInfo, existItemA, existItemB *EdbInfoCalculateMapping) (err error) {
	//查询当前指标现有的数据
	var condition string
	var pars []interface{}
	condition += " AND edb_info_id=? "
	pars = append(pars, edbInfo.EdbInfoId)

	var dataList []*EdbDataCalculateZjpj
	sql := ` SELECT * FROM edb_data_calculate_zjpj WHERE edb_info_id=? ORDER BY data_time DESC `
	err = to.Raw(sql, edbInfo.EdbInfoId).Find(&dataList).Error
	if err != nil {
		return err
	}
	var dateArr []string
	dataMap := make(map[string]*EdbDataCalculateZjpj)
	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([]*EdbDataCalculateZjpj, 0)
	//第一个指标
	{
		//第一个指标的数据列表
		firstDataList, tmpErr := GetEdbDataListAllByTo(to, existItemA.FromSource, existItemA.FromSubSource, FindEdbDataListAllCond{
			EdbInfoId:       existItemA.FromEdbInfoId,
			EndDataTime:     edbInfo.CalculateFormula,
			EndDataTimeCond: "<",
		}, 0)
		if tmpErr != nil {
			return tmpErr
		}

		for _, v := range firstDataList {
			//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)
			}
			//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.Model(edbData).Select([]string{"Value"}).Updates(edbData).Error
				}
			} else {
				//时间戳
				currentDate, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
				timestamp := currentDate.UnixNano() / 1e6

				edbDataZjpj := &EdbDataCalculateZjpj{
					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
	{
		//第二个指标的数据列表
		secondDataList, tmpErr := GetEdbDataListAllByTo(to, existItemB.FromSource, existItemB.FromSubSource, FindEdbDataListAllCond{
			EdbInfoId:         existItemB.FromEdbInfoId,
			StartDataTime:     edbInfo.CalculateFormula,
			StartDataTimeCond: ">=",
		}, 0)
		if tmpErr != nil {
			return tmpErr
		}

		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 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.Model(edbData).Select([]string{"Value", "ModifyTime"}).Updates(edbData).Error
					if tmpErr != nil {
						fmt.Println("tmpErr:", tmpErr)
					}
				}
			} else {
				//时间戳
				currentDate, _ := time.ParseInLocation(utils.FormatDate, v.DataTime, time.Local)
				timestamp := currentDate.UnixNano() / 1e6

				edbDataZjpj := &EdbDataCalculateZjpj{
					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.Exec(sql, edbInfo.EdbInfoId).Error
			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 {
		//tmpAddDataList := make([]*EdbDataCalculateZjpj, 0)
		//i := 0
		//for _, v := range addDataList {
		//	tmpAddDataList = append(tmpAddDataList, v)
		//	i++
		//	if i >= 500 {
		//		err = to.CreateInBatches(tmpAddDataList, utils.MultiAddNum).Error
		//		if err != nil {
		//			return
		//		}
		//		i = 0
		//		tmpAddDataList = make([]*EdbDataCalculateZjpj, 0)
		//	}
		//}
		//
		//if len(tmpAddDataList) > 0 {
		//	err = to.CreateInBatches(tmpAddDataList, utils.MultiAddNum).Error
		//	if err != nil {
		//		return
		//	}
		//}
		err = to.CreateInBatches(addDataList, utils.MultiAddNum).Error
		if err != nil {
			return
		}
	}

	return
}