package analysis

import (
	"github.com/1340691923/xwl_bi/engine/db"
	"github.com/1340691923/xwl_bi/engine/logs"
	"github.com/1340691923/xwl_bi/platform-basic-libs/my_error"
	"github.com/1340691923/xwl_bi/platform-basic-libs/request"
	"github.com/1340691923/xwl_bi/platform-basic-libs/service/analysis/utils"
	"github.com/1340691923/xwl_bi/platform-basic-libs/service/meta_data"
	jsoniter "github.com/json-iterator/go"
	"strconv"
)

type Trace struct {
	sql             string
	args            []interface{}
	eventNameMapStr string
	req             request.TraceReqData
	sqlTyp          int
}

const ChartSql int = 1

const TableSql int = 2

func (this *Trace) setSqlTyp(typ int) {
	this.sqlTyp = typ
}


func (this *Trace) GetList() (interface{}, error) {

	type Res1 struct {
		Source string `json:"source"`
		Target string `json:"target"`
		Value int `json:"value"`
	}

	type Res2 struct {
		Name string `json:"name"`
	}


	this.setSqlTyp(TableSql)

	SQL, args, err := this.GetExecSql()
	if err != nil {
		return nil, err
	}

	logs.Logger.Sugar().Infof("sql", SQL, args, err)

	type TableRes struct {
		Trace     string   `json:"trace" db:"trace"`
		UserCount uint64   `json:"user_count" db:"user_count"`
		Ui        []string `json:"ui" db:"ui"`
	}

	var tableRes []TableRes

	err = db.ClickHouseSqlx.Select(&tableRes, SQL, args...)
	if err != nil {
		return nil, err
	}

	this.setSqlTyp(ChartSql)

	SQL, args, err = this.GetExecSql()

	if err != nil {
		return nil, err
	}

	logs.Logger.Sugar().Infof("sql", SQL, args, err)

	type ChartsRes struct {
		Event        []string `json:"event" db:"trace2"`
		SumUserCount uint64   `json:"sum_user_count" db:"sum_user_count"`
	}

	var chartsRes []ChartsRes

	err = db.ClickHouseSqlx.Select(&chartsRes, SQL, args...)
	if err != nil {
		return nil, err
	}

	return map[string]interface{}{"tableRes": tableRes, "chartRes": chartsRes}, nil
}

func (this *Trace) GetTableSql() (SQL string, allArgs []interface{}, err error) {
	startTime := this.req.Date[0] + " 00:00:00"
	endTime := this.req.Date[1] + " 23:59:59"

	windowSql, allArgs, err := getZhibiaoFilterSqlArgs(this.req.ZhibiaoArr)
	if err != nil {
		return
	}
	userFilterSql, userFilterArgs, err := getUserfilterSqlArgs(this.req.WhereFilterByUser, this.req.Appid)
	if err != nil {
		return
	}
	whereFilterSql, whereFilterArgs, _, err := utils.GetWhereSql(this.req.WhereFilter)
	if err != nil {
		return
	}

	if len(this.req.EventNames) > 1 {
		whereFilterSql = whereFilterSql + " and xwl_part_event in (?) "
		whereFilterArgs = append(whereFilterArgs, this.req.EventNames)
	}

	whereFilterSql = whereFilterSql + this.sql

	allArgs = append(allArgs, whereFilterArgs...)

	allArgs = append(allArgs, this.args...)

	allArgs = append(allArgs, userFilterArgs...)

	SQL = `
		  select trace ,user_count,ui from  (SELECT
			 result_chain as trace,
			  uniqCombined(user_id) AS user_count,groupUniqArray(user_id) ui
			  FROM (
					select
					  xwl_distinct_id as user_id,
                      ` + this.eventNameMapStr + ` as eventMap,
					  arrayStringConcat(
					   arrayCompact(    
						arrayMap(
						  b -> tupleElement(b, 1),
						  arraySort(  
							y -> tupleElement(y, 2),
							arrayFilter(
							  (x, y) -> y - x.2 <= ` + strconv.Itoa(this.req.WindowTime) + ` and  y - x.2  >=  0,
							  arrayMap(
								(x, y) -> (x, y),
								groupArray(mapValues(eventMap)[indexOf(mapKeys(eventMap), xwl_part_event)]),
								groupArray(toUnixTimestamp(xwl_part_date))
							  ),  
							  arrayWithConstant(
								length(groupArray(toUnixTimestamp(xwl_part_date))),
								maxIf(toUnixTimestamp(xwl_part_date) ` + windowSql + `)
							  )
							)
						  )
						)
					   ),
					  '->'
					 ) result_chain
					from
					  xwl_event` + strconv.Itoa(this.req.Appid) + `
					prewhere
			   xwl_part_date >= toDateTime('` + startTime + `')
				AND xwl_part_date <= toDateTime('` + endTime + `') and ` + whereFilterSql + ` ` + userFilterSql + `
					
					group by
					  xwl_distinct_id
					  HAVING notEmpty(result_chain)
			  ) tab 
			  GROUP BY result_chain
			  ORDER BY user_count DESC) limit 1000
	`

	return
}

func (this *Trace) GetChartSql() (SQL string, allArgs []interface{}, err error) {
	startTime := this.req.Date[0] + " 00:00:00"
	endTime := this.req.Date[1] + " 23:59:59"

	windowSql, allArgs, err := getZhibiaoFilterSqlArgs(this.req.ZhibiaoArr)
	if err != nil {
		return
	}
	userFilterSql, userFilterArgs, err := getUserfilterSqlArgs(this.req.WhereFilterByUser, this.req.Appid)
	if err != nil {
		return
	}
	whereFilterSql, whereFilterArgs, _, err := utils.GetWhereSql(this.req.WhereFilter)
	if err != nil {
		return
	}

	if len(this.req.EventNames) > 1 {
		whereFilterSql = whereFilterSql + " and xwl_part_event in (?) "
		whereFilterArgs = append(whereFilterArgs, this.req.EventNames)
	}

	whereFilterSql = whereFilterSql + this.sql

	allArgs = append(allArgs, whereFilterArgs...)

	allArgs = append(allArgs, this.args...)

	allArgs = append(allArgs, userFilterArgs...)

	SQL = `select  splitByString('->', arrayJoin(arrayMap(	(x, y) -> concat(concat( x,'->'),y),arraySlice(trace, 1, length(trace) - 1),arraySlice(trace, 2, length(trace)) ))) as trace2,sum(1) as sum_user_count from (
		 
		select if(length(trace33)==1,arrayPushBack(trace33,str_link),arrayPushBack(arraySlice(trace33, 1, length(trace33) - 1),str_link)) as trace from (
		select  arrayMap((x, y) -> CONCAT(x, concat('(',concat(toString(y),')'))),result_chain,arrayEnumerateUniq(result_chain)) as trace33,concat(mapValues(eventMap)[indexOf(mapKeys(eventMap), '`+this.req.ZhibiaoArr[0].EventName+`')],'(最终路径)') as str_link  from (
		
			select
	  xwl_distinct_id as user_id, ` + this.eventNameMapStr + ` as eventMap,
				
					   arrayCompact(   
						arrayMap( 
						  b -> tupleElement(b, 1),
						  arraySort(  
							y -> tupleElement(y, 2),
							arrayFilter(
						   (x, y) -> y - x.2 <= ` + strconv.Itoa(this.req.WindowTime) + ` and  y - x.2 >= 0,
							  arrayMap(
								(x, y) -> (x, y),
					 			groupArray(mapValues(eventMap)[indexOf(mapKeys(eventMap), xwl_part_event)]),
								groupArray(toUnixTimestamp(xwl_part_date))
							  ), 
							  arrayWithConstant(
								length(groupArray(toUnixTimestamp(xwl_part_date))),
							    maxIf(toUnixTimestamp(xwl_part_date)` + windowSql + ` )
							  )
							)
						  )
						)
					   )

					  result_chain
					from
			       xwl_event` + strconv.Itoa(this.req.Appid) + `
						prewhere
			   xwl_part_date >= toDateTime('` + startTime + `')
				AND xwl_part_date <= toDateTime('` + endTime + `') and ` + whereFilterSql + ` ` + userFilterSql + `
					group by
					  xwl_distinct_id
					  HAVING notEmpty(result_chain) 
		
		)))
		
		group by trace2

    `


	return
}


func (this *Trace) GetExecSql() (SQL string, allArgs []interface{}, err error) {
	if this.sqlTyp == ChartSql {
		return this.GetChartSql()
	}

	return this.GetTableSql()
}

func NewTrace(reqData []byte) (Ianalysis, error) {
	obj := &Trace{}
	var json = jsoniter.ConfigCompatibleWithStandardLibrary
	err := json.Unmarshal(reqData, &obj.req)
	if err != nil {
		return nil, err
	}
	if len(obj.req.Date) < 2 {
		return nil, my_error.NewBusiness(ERROR_TABLE, TimeError)
	}
	if len(obj.req.ZhibiaoArr) != 1 {
		return nil, my_error.NewBusiness(ERROR_TABLE, ZhiBiaoNumError)
	}
	obj.sqlTyp = TableSql
	var T int
	switch obj.req.WindowTimeFormat {
	case "天":
		T = 60 * 60 * 24
	case "小时":
		T = 60 * 60
	case "分钟":
		T = 60
	case "秒":
		T = 1
	default:
		return nil, my_error.NewBusiness(ERROR_TABLE, TimeError)
	}
	obj.req.WindowTime = obj.req.WindowTime * T
	metaDataService := meta_data.MetaDataService{Appid: strconv.Itoa(obj.req.Appid)}
	mapStr, err := metaDataService.GetEventNameShowMap()
	if err != nil {
		return nil, err
	}
	obj.eventNameMapStr = mapStr

	obj.sql, obj.args, err = utils.GetUserGroupSqlAndArgs(obj.req.UserGroup, obj.req.Appid)


	if err != nil {
		return nil, err
	}

	obj.req.EventNames = append(obj.req.EventNames, obj.req.ZhibiaoArr[0].EventName)

	return obj, nil
}