package query

//package main
//
//import (
//	"fmt"
//	"strings"
//)
//
////func main() {
////	var r Root
////	//err := json.Unmarshal([]byte(jsonInput), &r)
////	//if err != nil {
////	//	panic(err)
////	//}
////	//
////	////fmt.Println("ARGS:", r)
////	//fmt.Println(buildQuery(r))
////	////fmt.Println("QUERY PART:", qp)
////
////	builder := NewQueryBuilder()
////	query, err := builder.BuildQuery(r)
////	if err != nil {
////		fmt.Println("ERROR:", err)
////	}
////
////	fmt.Println(query)
////}
//
//type Table string
//type Column string
//type FilterType string
//type EventOrder string
//type FetchFilterType string
//
//const (
//	UserOs             FilterType = "userOs"
//	UserBrowser        FilterType = "userBrowser"
//	UserDevice         FilterType = "userDevice"
//	UserCountry        FilterType = "userCountry"
//	UserCity           FilterType = "userCity"
//	UserState          FilterType = "userState"
//	UserId             FilterType = "userId"
//	UserAnonymousId    FilterType = "userAnonymousId"
//	Referrer           FilterType = "referrer"
//	RevId              FilterType = "revId"
//	UserOsIos          FilterType = "userOsIos"
//	UserDeviceIos      FilterType = "userDeviceIos"
//	UserCountryIos     FilterType = "userCountryIos"
//	UserIdIos          FilterType = "userIdIos"
//	UserAnonymousIdIos FilterType = "userAnonymousIdIos"
//	RevIdIos           FilterType = "revIdIos"
//	Duration           FilterType = "duration"
//	Platform           FilterType = "platform"
//	Metadata           FilterType = "metadata"
//	Issue              FilterType = "issue"
//	EventsCount        FilterType = "eventsCount"
//	UtmSource          FilterType = "utmSource"
//	UtmMedium          FilterType = "utmMedium"
//	UtmCampaign        FilterType = "utmCampaign"
//	ThermalState       FilterType = "thermalState"
//	MainThreadCPU      FilterType = "mainThreadCPU"
//	ViewComponent      FilterType = "viewComponent"
//	LogEvent           FilterType = "logEvent"
//	ClickEvent         FilterType = "clickEvent"
//	MemoryUsage        FilterType = "memoryUsage"
//)
//
//const (
//	Click         FilterType = "click"
//	Input         FilterType = "input"
//	Location      FilterType = "location"
//	Custom        FilterType = "custom"
//	Request       FilterType = "request"
//	Fetch         FilterType = "fetch"
//	GraphQL       FilterType = "graphql"
//	StateAction   FilterType = "stateAction"
//	Error         FilterType = "error"
//	Tag           FilterType = "tag"
//	ClickMobile   FilterType = "clickMobile"
//	InputMobile   FilterType = "inputMobile"
//	ViewMobile    FilterType = "viewMobile"
//	CustomMobile  FilterType = "customMobile"
//	RequestMobile FilterType = "requestMobile"
//	ErrorMobile   FilterType = "errorMobile"
//	SwipeMobile   FilterType = "swipeMobile"
//)
//
//const (
//	EventOrderThen EventOrder = "then"
//	EventOrderOr   EventOrder = "or"
//	EventOrderAnd  EventOrder = "and"
//)
//
//const (
//	FetchFilterTypeFetchUrl          FilterType = "fetchUrl"
//	FetchFilterTypeFetchStatusCode   FilterType = "fetchStatusCode"
//	FetchFilterTypeFetchMethod       FilterType = "fetchMethod"
//	FetchFilterTypeFetchDuration     FilterType = "fetchDuration"
//	FetchFilterTypeFetchRequestBody  FilterType = "fetchRequestBody"
//	FetchFilterTypeFetchResponseBody FilterType = "fetchResponseBody"
//)
//
//const (
//	OperatorStringIs          = "is"
//	OperatorStringIsAny       = "isAny"
//	OperatorStringOn          = "on"
//	OperatorStringOnAny       = "onAny"
//	OperatorStringIsNot       = "isNot"
//	OperatorStringIsUndefined = "isUndefined"
//	OperatorStringNotOn       = "notOn"
//	OperatorStringContains    = "contains"
//	OperatorStringNotContains = "notContains"
//	OperatorStringStartsWith  = "startsWith"
//	OperatorStringEndsWith    = "endsWith"
//)
//
//const (
//	OperatorMathEq = "="
//	OperatorMathLt = "<"
//	OperatorMathGt = ">"
//	OperatorMathLe = "<="
//	OperatorMathGe = ">="
//)
//
////--------------------------------------------------
//// Constants for columns, tables, etc.
////--------------------------------------------------
//
//const (
//	TableEvents   Table = "product_analytics.events"
//	TableSessions Table = "experimental.sessions"
//
//	ColEventTime       Column = "main.created_at"
//	ColEventName       Column = "main.`$event_name`"
//	ColEventProjectID  Column = "main.project_id"
//	ColEventProperties Column = "main.`$properties`"
//	ColEventSessionID  Column = "main.session_id"
//	ColEventURLPath    Column = "main.url_path"
//	ColEventStatus     Column = "main.status"
//
//	ColSessionID        Column = "s.session_id"
//	ColDuration         Column = "s.duration"
//	ColUserCountry      Column = "s.user_country"
//	ColUserCity         Column = "s.user_city"
//	ColUserState        Column = "s.user_state"
//	ColUserID           Column = "s.user_id"
//	ColUserAnonymousID  Column = "s.user_anonymous_id"
//	ColUserOS           Column = "s.user_os"
//	ColUserBrowser      Column = "s.user_browser"
//	ColUserDevice       Column = "s.user_device"
//	ColUserDeviceType   Column = "s.user_device_type"
//	ColRevID            Column = "s.rev_id"
//	ColBaseReferrer     Column = "s.base_referrer"
//	ColUtmSource        Column = "s.utm_source"
//	ColUtmMedium        Column = "s.utm_medium"
//	ColUtmCampaign      Column = "s.utm_campaign"
//	ColMetadata1        Column = "s.metadata_1"
//	ColSessionProjectID Column = "s.project_id"
//	ColSessionIsNotNull Column = "isNotNull(s.duration)"
//)
//
//type Root struct {
//	StartTimestamp int64    `json:"startTimestamp"`
//	EndTimestamp   int64    `json:"endTimestamp"`
//	Series         []Series `json:"series"`
//	ProjectID      int64    `json:"projectId"`
//}
//
//type Series struct {
//	SeriesID int64        `json:"seriesId"`
//	Name     string       `json:"name"`
//	Filter   SeriesFilter `json:"filter"`
//}
//
//type SeriesFilter struct {
//	Filters     []FilterObj `json:"filters"`
//	EventsOrder EventOrder  `json:"eventsOrder"`
//}
//
//type FilterObj struct {
//	Key      string      `json:"key"`
//	Type     FilterType  `json:"type"`
//	IsEvent  bool        `json:"isEvent"`
//	Value    []string    `json:"value"`
//	Operator string      `json:"operator"`
//	Source   string      `json:"source"`
//	Filters  []FilterObj `json:"filters"`
//}
//
//// --------------------------------------------------
//func buildQuery(r Root) string {
//	s := r.Series[0]
//
//	// iterate over series and partition filters
//	//for _, s := range r.Series {
//	//	sessionFilters, eventFilters := partitionFilters(s.Filter.Filters)
//	//	sessionWhere := buildSessionWhere(sessionFilters)
//	//	eventWhere, seqHaving := buildEventsWhere(eventFilters, s.Filter.EventsOrder)
//	//	fmt.Println("SESSION FILTERS:", sessionFilters)
//	//	fmt.Println("EVENT FILTERS:", eventFilters)
//	//	fmt.Println("SESSION WHERE:", sessionWhere)
//	//	fmt.Println("EVENT WHERE:", eventWhere)
//	//	fmt.Println("SEQ HAVING:", seqHaving)
//	//}
//
//	sessionFilters, eventFilters := partitionFilters(s.Filter.Filters)
//	sessionWhere := buildSessionWhere(sessionFilters)
//	eventWhere, seqHaving := buildEventsWhere(eventFilters, s.Filter.EventsOrder)
//
//	subQuery := fmt.Sprintf(
//		"SELECT %s,\n"+
//			"       MIN(%s) AS first_event_ts,\n"+
//			"       MAX(%s) AS last_event_ts\n"+
//			"FROM %s AS main\n"+
//			"WHERE main.project_id = %%(project_id)s\n"+
//			"  AND %s >= toDateTime(%%(start_time)s/1000)\n"+
//			"  AND %s <= toDateTime(%%(end_time)s/1000)\n"+
//			"  AND (%s)\n"+
//			"GROUP BY %s\n"+
//			"HAVING %s",
//		ColEventSessionID,
//		ColEventTime,
//		ColEventTime,
//		TableEvents,
//		ColEventTime,
//		ColEventTime,
//		strings.Join(eventWhere, " OR "),
//		ColEventSessionID,
//		seqHaving,
//	)
//
//	joinQuery := fmt.Sprintf(
//		"SELECT *\n"+
//			"FROM %s AS s\n"+
//			"INNER JOIN (\n"+
//			"    SELECT DISTINCT ev.session_id, ev.`$current_url` AS url_path\n"+
//			"    FROM %s AS ev\n"+
//			"    WHERE ev.created_at >= toDateTime(%%(start_time)s/1000)\n"+
//			"      AND ev.created_at <= toDateTime(%%(end_time)s/1000)\n"+
//			"      AND ev.project_id = %%(project_id)s\n"+
//			"      AND ev.`$event_name` = 'LOCATION'\n"+
//			") AS extra_event USING (session_id)\n"+
//			"WHERE s.project_id = %%(project_id)s\n"+
//			"  AND %s\n"+
//			"  AND s.datetime >= toDateTime(%%(start_time)s/1000)\n"+
//			"  AND s.datetime <= toDateTime(%%(end_time)s/1000)\n",
//		TableSessions,
//		TableEvents,
//		ColSessionIsNotNull,
//	)
//
//	if len(sessionWhere) > 0 {
//		joinQuery += "  AND " + strings.Join(sessionWhere, " AND ") + "\n"
//	}
//
//	main := fmt.Sprintf(
//		"SELECT s.session_id AS session_id, s.url_path\n"+
//			"FROM (\n%s\n) AS f\n"+
//			"INNER JOIN (\n%s) AS s\n"+
//			"  ON (s.session_id = f.session_id)\n",
//		subQuery,
//		joinQuery,
//	)
//
//	final := fmt.Sprintf(
//		"SELECT COUNT(DISTINCT url_path) OVER () AS main_count,\n"+
//			"       url_path AS name,\n"+
//			"       COUNT(DISTINCT session_id) AS total,\n"+
//			"       COALESCE(SUM(COUNT(DISTINCT session_id)) OVER (), 0) AS total_count\n"+
//			"FROM (\n%s) AS filtered_sessions\n"+
//			"GROUP BY url_path\n"+
//			"ORDER BY total DESC\n"+
//			"LIMIT 200 OFFSET 0;",
//		main,
//	)
//
//	return final
//}
//
//func partitionFilters(filters []FilterObj) (sessionFilters, eventFilters []FilterObj) {
//	for _, f := range filters {
//		if f.IsEvent {
//			eventFilters = append(eventFilters, f)
//		} else {
//			sessionFilters = append(sessionFilters, f)
//		}
//	}
//	return
//}
//
//func buildSessionWhere(filters []FilterObj) []string {
//	var conds []string
//	for _, f := range filters {
//		switch f.Type {
//		case UserCountry:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserCountry, concatValues(f.Value)))
//		case UserCity:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserCity, concatValues(f.Value)))
//		case UserState:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserState, concatValues(f.Value)))
//		case UserId:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserID, concatValues(f.Value)))
//		case UserAnonymousId:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserAnonymousID, concatValues(f.Value)))
//		case UserOs:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserOS, concatValues(f.Value)))
//		case UserBrowser:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserBrowser, concatValues(f.Value)))
//		case UserDevice:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserDevice, concatValues(f.Value)))
//		case Platform:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUserDeviceType, concatValues(f.Value)))
//		case RevId:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColRevID, concatValues(f.Value)))
//		case Referrer:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColBaseReferrer, concatValues(f.Value)))
//		case Duration:
//			if len(f.Value) == 2 {
//				conds = append(conds, fmt.Sprintf("%s >= '%s'", ColDuration, f.Value[0]))
//				conds = append(conds, fmt.Sprintf("%s <= '%s'", ColDuration, f.Value[1]))
//			}
//		case UtmSource:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUtmSource, concatValues(f.Value)))
//		case UtmMedium:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUtmMedium, concatValues(f.Value)))
//		case UtmCampaign:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColUtmCampaign, concatValues(f.Value)))
//		case Metadata:
//			conds = append(conds, fmt.Sprintf("%s = toString('%s')", ColMetadata1, concatValues(f.Value)))
//		}
//	}
//	// add /n to each condition
//	for i := range conds {
//		conds[i] += "\n"
//	}
//	return conds
//}
//
//func parseOperator(op string) string {
//	switch strings.ToLower(op) {
//	case OperatorStringContains:
//		return OperatorMathEq // interpret as "LIKE" if needed
//	case OperatorStringIs, OperatorStringOn, "=", OperatorStringOnAny:
//		return OperatorMathEq
//	case OperatorStringStartsWith:
//		// might interpret differently in real impl
//		return OperatorMathEq
//	case OperatorStringEndsWith:
//		// might interpret differently in real impl
//		return OperatorMathEq
//	default:
//		return OperatorMathEq
//	}
//}
//
//func buildEventsWhere(filters []FilterObj, order EventOrder) (eventConditions []string, having string) {
//	basicEventTypes := "(" +
//		strings.Join([]string{
//			fmt.Sprintf("%s = 'CLICK'", ColEventName),
//			fmt.Sprintf("%s = 'INPUT'", ColEventName),
//			fmt.Sprintf("%s = 'LOCATION'", ColEventName),
//			fmt.Sprintf("%s = 'CUSTOM'", ColEventName),
//			fmt.Sprintf("%s = 'REQUEST'", ColEventName),
//		}, " OR ") + ")"
//
//	var seq []string
//	for _, f := range filters {
//		switch f.Type {
//		case Click:
//			seq = append(seq, seqCond("CLICK", "selector", f))
//		case Input:
//			seq = append(seq, seqCond("INPUT", "label", f))
//		case Location:
//			seq = append(seq, seqCond("LOCATION", "url_path", f))
//		case Custom:
//			seq = append(seq, seqCond("CUSTOM", "name", f))
//		case Fetch:
//			seq = append(seq, seqFetchCond("REQUEST", f))
//		case FetchFilterTypeFetchStatusCode:
//			seq = append(seq, seqCond("REQUEST", "status", f))
//		default:
//			seq = append(seq, fmt.Sprintf("(%s = '%s')", ColEventName, strings.ToUpper(string(f.Type))))
//		}
//	}
//	eventConditions = []string{basicEventTypes}
//
//	// then => sequenceMatch
//	// or => OR
//	// and => AND
//	switch order {
//	case EventOrderThen:
//		var pattern []string
//		for i := range seq {
//			pattern = append(pattern, fmt.Sprintf("(?%d)", i+1))
//		}
//		having = fmt.Sprintf("sequenceMatch('%s')(\n%s,\n%s)",
//			strings.Join(pattern, ""), fmt.Sprintf("toUnixTimestamp(%s)", ColEventTime), strings.Join(seq, ",\n"))
//	case EventOrderAnd:
//		// build AND
//		having = strings.Join(seq, " AND ")
//	default:
//		// default => OR
//		var orParts []string
//		for _, p := range seq {
//			orParts = append(orParts, "("+p+")")
//		}
//		having = strings.Join(orParts, " OR ")
//	}
//	return
//}
//
//func seqCond(eventName, key string, f FilterObj) string {
//	op := parseOperator(f.Operator)
//	return fmt.Sprintf("(%s = '%s' AND JSONExtractString(toString(%s), '%s') %s '%s')",
//		ColEventName, strings.ToUpper(eventName), ColEventProperties, key, op, concatValues(f.Value))
//}
//
//func seqFetchCond(eventName string, f FilterObj) string {
//	w := []string{fmt.Sprintf("(%s = '%s')", ColEventName, strings.ToUpper(eventName))}
//	var extras []string
//	for _, c := range f.Filters {
//		switch c.Type {
//		case Fetch:
//			if len(c.Value) > 0 {
//				extras = append(extras, fmt.Sprintf("(%s = '%s')", ColEventURLPath, concatValues(c.Value)))
//			}
//		case FetchFilterTypeFetchStatusCode:
//			if len(c.Value) > 0 {
//				extras = append(extras, fmt.Sprintf("(%s = '%s')", ColEventStatus, concatValues(c.Value)))
//			}
//		default:
//			// placeholder if needed
//		}
//	}
//	if len(extras) > 0 {
//		w = append(w, strings.Join(extras, " AND "))
//	}
//	return "(" + strings.Join(w, " AND ") + ")"
//}
//
//func concatValues(v []string) string {
//	return strings.Join(v, "")
//}

//const jsonInput = `
//{
//    "startTimestamp": 1737043724664,
//    "endTimestamp": 1737130124664,
//	"projectId": 1,
//    "series": [
//        {
//            "seriesId": 610,
//            "name": "Series 1",
//            "filter": {
//                "filters": [
//                    {
//                        "type": "click",
//                        "isEvent": true,
//                        "value": ["DEPLOYMENT"],
//                        "operator": "on",
//                        "filters": []
//                    },
//                    {
//                        "type": "input",
//                        "isEvent": true,
//                        "value": ["a"],
//                        "operator": "contains",
//                        "filters": []
//                    },
//                    {
//                        "type": "location",
//                        "isEvent": true,
//                        "value": ["/en/using-or/"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userCountry",
//                        "isEvent": false,
//                        "value": ["AD"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userCity",
//                        "isEvent": false,
//                        "value": ["Mumbai"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userState",
//                        "isEvent": false,
//                        "value": ["Maharashtra"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userId",
//                        "isEvent": false,
//                        "value": ["test@test.com"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userAnonymousId",
//                        "isEvent": false,
//                        "value": ["asd"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userOs",
//                        "isEvent": false,
//                        "value": ["Mac OS X"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userBrowser",
//                        "isEvent": false,
//                        "value": ["Chrome"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "userDevice",
//                        "isEvent": false,
//                        "value": ["iPhone"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "platform",
//                        "isEvent": false,
//                        "value": ["desktop"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "revId",
//                        "isEvent": false,
//                        "value": ["v1"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "referrer",
//                        "isEvent": false,
//                        "value": ["https://www.google.com/"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "duration",
//                        "isEvent": false,
//                        "value": ["60000", "6000000"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "utmSource",
//                        "isEvent": false,
//                        "value": ["aaa"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "utmMedium",
//                        "isEvent": false,
//                        "value": ["aa"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "utmCampaign",
//                        "isEvent": false,
//                        "value": ["aaa"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "metadata",
//                        "isEvent": false,
//                        "value": ["bbbb"],
//                        "operator": "is",
//                        "source": "userId",
//                        "filters": []
//                    },
//                    {
//                        "type": "custom",
//                        "isEvent": true,
//                        "value": ["test"],
//                        "operator": "is",
//                        "filters": []
//                    },
//                    {
//                        "type": "fetch",
//                        "isEvent": true,
//                        "value": [],
//                        "operator": "is",
//                        "filters": [
//                            {
//                                "type": "fetchUrl",
//                                "isEvent": false,
//                                "value": ["/ai/docs/chat"],
//                                "operator": "is",
//                                "filters": []
//                            },
//                            {
//                                "type": "fetchStatusCode",
//                                "isEvent": false,
//                                "value": ["400"],
//                                "operator": "=",
//                                "filters": []
//                            },
//                            {
//                                "type": "fetchMethod",
//                                "isEvent": false,
//                                "value": [],
//                                "operator": "is",
//                                "filters": []
//                            },
//                            {
//                                "type": "fetchDuration",
//                                "isEvent": false,
//                                "value": [],
//                                "operator": "=",
//                                "filters": []
//                            },
//                            {
//                                "type": "fetchRequestBody",
//                                "isEvent": false,
//                                "value": [],
//                                "operator": "is",
//                                "filters": []
//                            },
//                            {
//                                "type": "fetchResponseBody",
//                                "isEvent": false,
//                                "value": [],
//                                "operator": "is",
//                                "filters": []
//                            }
//                        ]
//                    }
//                ],
//                "eventsOrder": "then"
//            }
//        }
//    ]
//}
//`