package models

import (
	"eta/eta_index_lib/models/mgo"
	"eta/eta_index_lib/utils"
	"fmt"
	"github.com/beego/beego/v2/client/orm"
	"github.com/shopspring/decimal"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/bson/primitive"
	"reflect"
	"time"
)

// Business 外部数据
type Business struct {
}

// AddBaseParams
// @Description: 基础指标的添加参数
type AddBaseParams struct {
	EdbCode         string `description:"指标编码"`
	EdbName         string `description:"指标名称"`
	Unit            string `description:"单位"`
	ClassifyId      int    `description:"所属分类"`
	SysUserId       int    `description:"用户id"`
	SysUserRealName string `description:"用户真实名称"`
	UniqueCode      string `description:"编码"`
}

// EditBaseParams
// @Description: 基础指标的修改参数
type EditBaseParams struct {
	EdbCode         string   `description:"指标编码"`
	EdbName         string   `description:"指标名称"`
	EdbNameEn       string   `description:"指标名称（英文）"`
	Unit            string   `description:"单位"`
	UnitEn          string   `description:"单位（英文）"`
	ClassifyId      int      `description:"所属分类"`
	SysUserId       int      `description:"用户id"`
	SysUserRealName string   `description:"用户真实名称"`
	UniqueCode      string   `description:"编码"`
	Lang            string   `description:"语言版本"`
	EdbInfo         *EdbInfo `description:"指标信息"`
}

type RefreshBaseParams struct {
	EdbInfo   *EdbInfo
	StartDate string
	EndDate   string
}

// Add
// @Description: 添加指标
// @author: Roc
// @receiver obj
// @datetime 2024-04-30 17:35:14
// @param params AddBaseParams
// @param businessIndexItem *BaseFromBusinessIndex
// @return edbInfo *EdbInfo
// @return err error
// @return errMsg string
func (obj Business) Add(params AddBaseParams, businessIndexItem *BaseFromBusinessIndex) (edbInfo *EdbInfo, err error, errMsg string) {
	o := orm.NewOrm()
	to, err := o.Begin()
	if err != nil {
		return
	}
	defer func() {
		if err != nil {
			_ = to.Rollback()
			fmt.Println(reflect.TypeOf(obj).Name(), "；Add,Err:"+err.Error())
		} else {
			_ = to.Commit()
		}
	}()

	edbInfo = new(EdbInfo)
	edbInfo.Source = obj.GetSource()
	edbInfo.SourceName = obj.GetSourceName()
	edbInfo.EdbCode = params.EdbCode
	edbInfo.EdbName = params.EdbName
	edbInfo.EdbNameSource = params.EdbName
	edbInfo.Frequency = businessIndexItem.Frequency
	edbInfo.Unit = params.Unit
	edbInfo.ClassifyId = params.ClassifyId
	edbInfo.SysUserId = params.SysUserId
	edbInfo.SysUserRealName = params.SysUserRealName
	edbInfo.CreateTime = time.Now()
	edbInfo.ModifyTime = time.Now()
	edbInfo.UniqueCode = params.UniqueCode
	edbInfo.CalculateFormula = ``
	edbInfo.EdbNameEn = params.EdbName
	edbInfo.UnitEn = params.Unit
	edbInfo.EdbType = obj.GetEdbType()
	edbInfo.SubSource = businessIndexItem.Source
	edbInfo.SubSourceName = businessIndexItem.SourceName
	newEdbInfoId, tmpErr := to.Insert(edbInfo)
	if tmpErr != nil {
		err = tmpErr
		return
	}
	edbInfo.EdbInfoId = int(newEdbInfoId)

	// 更新数据
	err = obj.refresh(edbInfo, "")

	return
}

// Edit
// @Description: 编辑指标
// @author: Roc
// @receiver obj
// @datetime 2024-04-30 17:35:05
// @param params EditBaseParams
// @param businessIndexItem *BaseFromBusinessIndex
// @return err error
// @return errMsg string
func (obj Business) Edit(params EditBaseParams, businessIndexItem *BaseFromBusinessIndex) (err error, errMsg string) {
	edbInfo := params.EdbInfo

	o := orm.NewOrm()
	to, err := o.Begin()
	if err != nil {
		return
	}
	defer func() {
		if err != nil {
			_ = to.Rollback()
			fmt.Println(reflect.TypeOf(obj).Name(), "；Edit,Err:"+err.Error())
		} else {
			_ = to.Commit()
		}
	}()

	//oldEdbInfo := *edbInfo

	//修改指标信息
	edbInfo.EdbName = params.EdbName
	edbInfo.EdbNameSource = params.EdbName
	edbInfo.Frequency = businessIndexItem.Frequency
	edbInfo.Unit = params.Unit
	edbInfo.ClassifyId = params.ClassifyId
	edbInfo.EdbNameEn = params.EdbNameEn
	edbInfo.UnitEn = params.UnitEn
	edbInfo.SubSource = businessIndexItem.Source
	edbInfo.SubSourceName = businessIndexItem.SourceName
	edbInfo.ModifyTime = time.Now()
	_, err = to.Update(edbInfo, "EdbName", "EdbNameSource", "Frequency", "Unit", "ClassifyId", "CalculateFormula", "ModifyTime", "EdbNameEn", "UnitEn", "SubSource", "SubSourceName")
	if err != nil {
		return
	}

	//计算数据
	err = obj.refresh(edbInfo, "")

	return
}

// Refresh 刷新
func (obj Business) Refresh(params RefreshBaseParams) (err error, errMsg string) {
	to, err := orm.NewOrm().Begin()
	if err != nil {
		return
	}
	defer func() {
		if err != nil {
			_ = to.Rollback()
			fmt.Println(reflect.TypeOf(obj).Name(), "；Refresh,Err:"+err.Error())
		} else {
			_ = to.Commit()
		}
	}()

	// 计算数据
	err = obj.refresh(params.EdbInfo, params.StartDate)

	return
}

// GetSource 获取来源编码id
func (obj Business) GetSource() int {
	return utils.DATA_SOURCE_BUSINESS
}

// GetSourceName 获取来源名称
func (obj Business) GetSourceName() string {
	return utils.DATA_SOURCE_NAME_BUSINESS
}

// GetEdbType 获取指标类型
func (obj Business) GetEdbType() int {
	return utils.DEFAULT_EDB_TYPE
}

func (obj Business) refresh(edbInfo *EdbInfo, startDate string) (err error) {
	//获取已存在的所有数据
	baseDataList, err := obj.getBaseBusinessData(edbInfo, startDate)

	//获取指标所有数据
	existDataList := make([]*mgo.EdbDataBusiness, 0)
	mogDataObj := new(mgo.EdbDataBusiness)
	{
		// 构建查询条件
		queryConditions := bson.M{
			"edb_code": edbInfo.EdbCode,
		}

		if startDate != `` {
			//获取已存在的所有数据
			startDateTime, tmpErr := time.ParseInLocation(utils.FormatDate, startDate, time.Local)
			if tmpErr != nil {
				err = tmpErr
				return
			}
			queryConditions["data_time"] = bson.M{"$gte": startDateTime}
		}

		existDataList, err = mogDataObj.GetAllDataList(queryConditions)
		if err != nil {
			fmt.Println("getEdbDataBusinessList Err:" + err.Error())
			return
		}
	}

	existDataMap := make(map[string]*mgo.EdbDataBusiness)
	removeDataTimeMap := make(map[string]bool) //需要移除的日期数据
	for _, v := range existDataList {
		tmpDate := v.DataTime.Format(utils.FormatDate)
		existDataMap[tmpDate] = v
		removeDataTimeMap[tmpDate] = true
	}
	needAddDateMap := make(map[time.Time]int)

	// 待添加的数据集
	addDataList := make([]mgo.EdbDataBusiness, 0)
	// 待更新的数据集
	updateDataList := make([]mgo.EdbDataBusiness, 0)

	for _, tmpData := range baseDataList {
		currDate := tmpData.DataTime
		currDateStr := currDate.Format(utils.FormatDate)

		// 当前的实际值
		saveValue := decimal.NewFromFloat(tmpData.Value).Round(4).String()

		existData, ok := existDataMap[currDateStr]
		// 如果库中已经存在该数据的话，那么就进行值的变更操作
		if ok {
			// 已经入到指标库的值
			existValStr := decimal.NewFromFloat(existData.Value).Round(4).String()

			//校验待删除日期数据里面是否存在该元素，如果存在的话，那么移除该日期
			delete(removeDataTimeMap, currDateStr)
			if existValStr != saveValue {
				existData.Value = tmpData.Value
				updateDataList = append(updateDataList, *existData)
			}

			continue
		}

		// 库中不存在该日期的数据
		timestamp := currDate.UnixNano() / 1e6
		addDataList = append(addDataList, mgo.EdbDataBusiness{
			EdbInfoId:     edbInfo.EdbInfoId,
			EdbCode:       edbInfo.EdbCode,
			DataTime:      currDate,
			Value:         tmpData.Value,
			CreateTime:    time.Now(),
			ModifyTime:    time.Now(),
			DataTimestamp: timestamp,
		})
		needAddDateMap[currDate] = 1
	}

	//删除已经不存在的指标数据（由于该指标当日的数据删除了）
	removeDateList := make([]string, 0)
	{
		for dateTime := range removeDataTimeMap {
			removeDateList = append(removeDateList, dateTime)
		}
		removeNum := len(removeDateList)
		if removeNum > 0 {
			// todo 删除指定日期的数据

		}
	}

	// 入库
	{

		coll := mogDataObj.GetCollection()

		//删除已经不存在的指标数据（由于该指标当日的数据删除了）
		//{
		//	for dateTime := range removeDataTimeMap {
		//		removeDateList = append(removeDateList, dateTime)
		//	}
		//	removeNum := len(removeDateList)
		//	if removeNum > 0 {
		//		err = mogDataObj.RemoveManyByColl(coll, addDataList)
		//		if err != nil {
		//			fmt.Println("mogDataObj.RemoveMany() Err:" + err.Error())
		//			return
		//		}
		//	}
		//}

		// 插入新数据
		if len(addDataList) > 0 {
			err = mogDataObj.BatchInsertDataByColl(coll, addDataList)
			if err != nil {
				fmt.Println("mogDataObj.BatchInsertData() Err:" + err.Error())
				return
			}
		}

		// 修改历史数据
		if len(updateDataList) > 0 {
			for _, v := range updateDataList {
				err = mogDataObj.UpdateDataByColl(coll, bson.M{"_id": v.ID}, bson.M{"$set": bson.M{"value": v.Value, "modify_time": v.ModifyTime}})
				if err != nil {
					fmt.Println("mogDataObj.UpdateDataByColl:Err:" + err.Error())
					return
				}
			}
		}
	}

	return
}

// GetEdbInfoMaxAndMinInfo 获取指标的最新数据记录信息
func (obj Business) GetEdbInfoMaxAndMinInfo(edbCode string) (item *EdbInfoMaxAndMinInfo, err error) {
	mogDataObj := new(mgo.EdbDataBusiness)
	pipeline := []bson.M{
		{"$match": bson.M{"edb_code": edbCode}},
		{"$group": bson.M{
			"_id":       nil,
			"min_date":  bson.M{"$min": "$data_time"},
			"max_date":  bson.M{"$max": "$data_time"},
			"min_value": bson.M{"$min": "$value"},
			"max_value": bson.M{"$max": "$value"},
		}},
		{"$project": bson.M{"_id": 0}}, // 可选，如果不需要_id字段
	}
	result, err := mogDataObj.GetEdbInfoMaxAndMinInfo(pipeline)
	if err != nil {
		fmt.Println("getEdbDataBusinessList Err:" + err.Error())
		return
	}

	if !result.MaxDate.IsZero() {
		whereQuery := bson.M{"edb_code": edbCode, "data_time": result.MaxDate}
		selectParam := bson.D{{"value", 1}, {"_id", 0}}
		latestValue, tmpErr := mogDataObj.GetLatestValue(whereQuery, selectParam)
		if tmpErr != nil {
			err = tmpErr
			return
		}
		result.LatestValue = latestValue.Value
		result.EndValue = latestValue.Value
	}

	item = &EdbInfoMaxAndMinInfo{
		MinDate:     result.MinDate.Format(utils.FormatDate),
		MaxDate:     result.MaxDate.Format(utils.FormatDate),
		MinValue:    result.MinValue,
		MaxValue:    result.MaxValue,
		LatestValue: result.LatestValue,
		LatestDate:  result.LatestDate.Format(utils.FormatDate),
		EndValue:    result.EndValue,
	}

	return
}

// UnifiedModifyEdbInfoMaxAndMinInfo
// @Description: 修改指标的最大最小值和最新值
// @author: Roc
// @receiver obj
// @datetime 2024-04-30 17:07:35
// @param edbInfo *EdbInfo
// @return err error
func (obj Business) UnifiedModifyEdbInfoMaxAndMinInfo(edbInfo *EdbInfo) (err error) {
	edbInfoMaxAndMinInfo, err := obj.GetEdbInfoMaxAndMinInfo(edbInfo.EdbCode)
	if err != nil {
		return
	}
	err = ModifyEdbInfoMaxAndMinInfo(edbInfo.EdbInfoId, edbInfoMaxAndMinInfo)
	return
}

// EdbInfoMgoData
// @Description: mgo里面的数据
type EdbInfoMgoData struct {
	EdbDataId primitive.ObjectID `description:"数据ID"`
	DataTime  time.Time          `description:"数据日期"`
	Value     float64            `description:"数据"`
	EdbCode   string             `description:"指标编码"`
}

// getBaseBusinessData
// @Description: 获取基础数据
// @author: Roc
// @receiver obj
// @datetime 2024-04-30 11:10:46
// @param edbInfo *EdbInfo
// @param startDate string
// @return newDataList []EdbInfoSearchData
// @return err error
func (obj Business) getBaseBusinessData(edbInfo *EdbInfo, startDate string) (newDataList []EdbInfoMgoData, err error) {
	newDataList = make([]EdbInfoMgoData, 0)

	// 获取数据源的指标数据
	mogDataObj := new(mgo.BaseFromBusinessData)

	// 构建查询条件
	queryConditions := bson.M{
		"index_code": edbInfo.EdbCode,
	}

	if startDate != `` {
		//获取已存在的所有数据
		startDateTime, tmpErr := time.ParseInLocation(utils.FormatDate, startDate, time.Local)
		if tmpErr != nil {
			err = tmpErr
			return
		}
		queryConditions["data_time"] = bson.M{"$gte": startDateTime}
	}

	baseDataList, err := mogDataObj.GetAllDataList(queryConditions)
	if err != nil {
		fmt.Println("getBaseBusinessData Err:" + err.Error())
		return
	}

	for _, v := range baseDataList {
		newDataList = append(newDataList, EdbInfoMgoData{
			EdbDataId: v.ID,
			DataTime:  v.DataTime,
			Value:     v.Value,
			EdbCode:   v.IndexCode,
		})
	}

	return
}