package model

import (
	"errors"
	"fmt"
	"strings"
	"time"

	"github.com/bytedance/sonic"
	"github.com/labring/aiproxy/core/common"
	"github.com/labring/aiproxy/core/common/config"
	"golang.org/x/sync/errgroup"
	"gorm.io/gorm"
)

type RequestDetail struct {
	CreatedAt             time.Time `gorm:"autoCreateTime;index" json:"-"`
	RequestBody           string    `gorm:"type:text"            json:"request_body,omitempty"`
	ResponseBody          string    `gorm:"type:text"            json:"response_body,omitempty"`
	RequestBodyTruncated  bool      `                            json:"request_body_truncated,omitempty"`
	ResponseBodyTruncated bool      `                            json:"response_body_truncated,omitempty"`
	ID                    int       `gorm:"primaryKey"           json:"id"`
	LogID                 int       `gorm:"index"                json:"log_id"`
}

func (d *RequestDetail) BeforeSave(_ *gorm.DB) (err error) {
	if reqMax := config.GetLogDetailRequestBodyMaxSize(); reqMax > 0 &&
		int64(len(d.RequestBody)) > reqMax {
		d.RequestBody = common.TruncateByRune(d.RequestBody, int(reqMax)) + "..."
		d.RequestBodyTruncated = true
	}

	if respMax := config.GetLogDetailResponseBodyMaxSize(); respMax > 0 &&
		int64(len(d.ResponseBody)) > respMax {
		d.ResponseBody = common.TruncateByRune(d.ResponseBody, int(respMax)) + "..."
		d.ResponseBodyTruncated = true
	}

	return err
}

type Log struct {
	RequestDetail    *RequestDetail  `gorm:"foreignKey:LogID;constraint:OnUpdate:CASCADE,OnDelete:CASCADE;" json:"request_detail,omitempty"`
	RequestAt        time.Time       `                                                                      json:"request_at"`
	RetryAt          time.Time       `                                                                      json:"retry_at,omitempty"`
	TTFBMilliseconds ZeroNullInt64   `                                                                      json:"ttfb_milliseconds,omitempty"`
	CreatedAt        time.Time       `gorm:"autoCreateTime;index"                                           json:"created_at"`
	TokenName        string          `gorm:"size:32"                                                        json:"token_name,omitempty"`
	Endpoint         EmptyNullString `gorm:"size:64"                                                        json:"endpoint,omitempty"`
	Content          EmptyNullString `gorm:"type:text"                                                      json:"content,omitempty"`
	GroupID          string          `gorm:"size:64"                                                        json:"group,omitempty"`
	Model            string          `gorm:"size:64"                                                        json:"model"`
	RequestID        EmptyNullString `gorm:"type:char(16);index:,where:request_id is not null"              json:"request_id"`
	ID               int             `gorm:"primaryKey"                                                     json:"id"`
	TokenID          int             `gorm:"index"                                                          json:"token_id,omitempty"`
	ChannelID        int             `                                                                      json:"channel,omitempty"`
	Code             int             `gorm:"index"                                                          json:"code,omitempty"`
	Mode             int             `                                                                      json:"mode,omitempty"`
	IP               EmptyNullString `gorm:"size:45;index:,where:ip is not null"                            json:"ip,omitempty"`
	RetryTimes       ZeroNullInt64   `                                                                      json:"retry_times,omitempty"`
	Price            Price           `gorm:"embedded"                                                       json:"price,omitempty"`
	Usage            Usage           `gorm:"embedded"                                                       json:"usage,omitempty"`
	UsedAmount       float64         `                                                                      json:"used_amount,omitempty"`
	// https://platform.openai.com/docs/guides/safety-best-practices#end-user-ids
	User     EmptyNullString   `gorm:"type:text"                                                      json:"user,omitempty"`
	Metadata map[string]string `gorm:"serializer:fastjson;type:text"                                  json:"metadata,omitempty"`
}

func CreateLogIndexes(db *gorm.DB) error {
	var indexes []string
	if common.UsingSQLite {
		// not support INCLUDE
		indexes = []string{
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_model_creat ON logs (model, created_at DESC)",
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_channel_creat ON logs (channel_id, created_at DESC)",
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_channel_model_creat ON logs (channel_id, model, created_at DESC)",

			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_creat ON logs (group_id, created_at DESC)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_token_creat ON logs (group_id, token_name, created_at DESC)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_model_creat ON logs (group_id, model, created_at DESC)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_token_model_creat ON logs (group_id, token_name, model, created_at DESC)",
		}
	} else {
		indexes = []string{
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_model_creat ON logs (model, created_at DESC) INCLUDE (code)",
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_channel_creat ON logs (channel_id, created_at DESC) INCLUDE (code)",
			// used by global search logs
			"CREATE INDEX IF NOT EXISTS idx_channel_model_creat ON logs (channel_id, model, created_at DESC) INCLUDE (code)",

			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_creat ON logs (group_id, created_at DESC) INCLUDE (code)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_token_creat ON logs (group_id, token_name, created_at DESC) INCLUDE (code)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_model_creat ON logs (group_id, model, created_at DESC) INCLUDE (code)",
			// used by search group logs
			"CREATE INDEX IF NOT EXISTS idx_group_token_model_creat ON logs (group_id, token_name, model, created_at DESC) INCLUDE (code)",
		}
	}

	for _, index := range indexes {
		if err := db.Exec(index).Error; err != nil {
			return err
		}
	}

	return nil
}

const (
	contentMaxSize = 2 * 1024 // 2KB
)

func (l *Log) BeforeCreate(_ *gorm.DB) (err error) {
	if len(l.Content) > contentMaxSize {
		l.Content = common.TruncateByRune(l.Content, contentMaxSize) + "..."
	}

	if l.CreatedAt.IsZero() {
		l.CreatedAt = time.Now()
	}

	if l.RequestAt.IsZero() {
		l.RequestAt = l.CreatedAt
	}

	return err
}

func (l *Log) MarshalJSON() ([]byte, error) {
	type Alias Log

	a := &struct {
		*Alias
		CreatedAt int64 `json:"created_at"`
		RequestAt int64 `json:"request_at"`
		RetryAt   int64 `json:"retry_at,omitempty"`
	}{
		Alias:     (*Alias)(l),
		CreatedAt: l.CreatedAt.UnixMilli(),
		RequestAt: l.RequestAt.UnixMilli(),
	}
	if !l.RetryAt.IsZero() {
		a.RetryAt = l.RetryAt.UnixMilli()
	}

	return sonic.Marshal(a)
}

func GetLogDetail(logID int) (*RequestDetail, error) {
	var detail RequestDetail

	err := LogDB.
		Model(&RequestDetail{}).
		Where("log_id = ?", logID).
		First(&detail).Error
	if err != nil {
		return nil, err
	}

	return &detail, nil
}

func GetGroupLogDetail(logID int, group string) (*RequestDetail, error) {
	if group == "" {
		return nil, errors.New("invalid group parameter")
	}

	var detail RequestDetail

	err := LogDB.
		Model(&RequestDetail{}).
		Joins("JOIN logs ON logs.id = request_details.log_id").
		Where("logs.group_id = ?", group).
		Where("log_id = ?", logID).
		First(&detail).Error
	if err != nil {
		return nil, err
	}

	return &detail, nil
}

const defaultCleanLogBatchSize = 5000

func CleanLog(batchSize int, optimize bool) (err error) {
	err = cleanLog(batchSize)
	if err != nil {
		return err
	}

	err = cleanLogDetail(batchSize)
	if err != nil {
		return err
	}

	if optimize {
		return optimizeLog()
	}

	return nil
}

func cleanLog(batchSize int) error {
	if batchSize <= 0 {
		batchSize = defaultCleanLogBatchSize
	}

	logStorageHours := config.GetLogStorageHours()
	if logStorageHours != 0 {
		subQuery := LogDB.
			Model(&Log{}).
			Where(
				"created_at < ?",
				time.Now().Add(-time.Duration(logStorageHours)*time.Hour),
			).
			Limit(batchSize).
			Select("id")

		err := LogDB.
			Session(&gorm.Session{SkipDefaultTransaction: true}).
			Where("id IN (?)", subQuery).
			Delete(&Log{}).Error
		if err != nil {
			return err
		}
	}

	retryLogStorageHours := config.GetRetryLogStorageHours()
	if retryLogStorageHours != 0 {
		subQuery := LogDB.
			Model(&RetryLog{}).
			Where(
				"created_at < ?",
				time.Now().Add(-time.Duration(retryLogStorageHours)*time.Hour),
			).
			Limit(batchSize).
			Select("id")

		err := LogDB.
			Session(&gorm.Session{SkipDefaultTransaction: true}).
			Where("id IN (?)", subQuery).
			Delete(&RetryLog{}).Error
		if err != nil {
			return err
		}
	}

	return LogDB.
		Model(&StoreV2{}).
		Where("expires_at < ?", time.Now()).
		Delete(&StoreV2{}).
		Error
}

func optimizeLog() error {
	switch {
	case common.UsingSQLite:
		return LogDB.Exec("VACUUM").Error
	default:
		return LogDB.Exec("VACUUM ANALYZE logs").Error
	}
}

func cleanLogDetail(batchSize int) error {
	detailStorageHours := config.GetLogDetailStorageHours()
	if detailStorageHours <= 0 {
		return nil
	}

	if batchSize <= 0 {
		batchSize = defaultCleanLogBatchSize
	}

	subQuery := LogDB.
		Model(&RequestDetail{}).
		Where(
			"created_at < ?",
			time.Now().Add(-time.Duration(detailStorageHours)*time.Hour),
		).
		Limit(batchSize).
		Select("id")

	err := LogDB.
		Session(&gorm.Session{SkipDefaultTransaction: true}).
		Where("id IN (?)", subQuery).
		Delete(&RequestDetail{}).Error
	if err != nil {
		return err
	}

	return nil
}

func RecordConsumeLog(
	requestID string,
	createAt time.Time,
	requestAt time.Time,
	retryAt time.Time,
	firstByteAt time.Time,
	group string,
	code int,
	channelID int,
	modelName string,
	tokenID int,
	tokenName string,
	endpoint string,
	content string,
	mode int,
	ip string,
	retryTimes int,
	requestDetail *RequestDetail,
	usage Usage,
	modelPrice Price,
	amount float64,
	user string,
	metadata map[string]string,
) error {
	if createAt.IsZero() {
		createAt = time.Now()
	}

	if requestAt.IsZero() {
		requestAt = createAt
	}

	if firstByteAt.IsZero() || firstByteAt.Before(requestAt) {
		firstByteAt = requestAt
	}

	log := &Log{
		RequestID:        EmptyNullString(requestID),
		RequestAt:        requestAt,
		CreatedAt:        createAt,
		RetryAt:          retryAt,
		TTFBMilliseconds: ZeroNullInt64(firstByteAt.Sub(requestAt).Milliseconds()),
		GroupID:          group,
		Code:             code,
		TokenID:          tokenID,
		TokenName:        tokenName,
		Model:            modelName,
		Mode:             mode,
		IP:               EmptyNullString(ip),
		ChannelID:        channelID,
		Endpoint:         EmptyNullString(endpoint),
		Content:          EmptyNullString(content),
		RetryTimes:       ZeroNullInt64(retryTimes),
		RequestDetail:    requestDetail,
		Price:            modelPrice,
		Usage:            usage,
		UsedAmount:       amount,
		User:             EmptyNullString(user),
		Metadata:         metadata,
	}

	return LogDB.Create(log).Error
}

func getLogOrder(order string) string {
	prefix, suffix, _ := strings.Cut(order, "-")
	switch prefix {
	case "request_at", "id":
		switch suffix {
		case "asc":
			return prefix + " asc"
		default:
			return prefix + " desc"
		}
	default:
		return "created_at desc"
	}
}

type CodeType string

const (
	CodeTypeAll     CodeType = "all"
	CodeTypeSuccess CodeType = "success"
	CodeTypeError   CodeType = "error"
)

type GetLogsResult struct {
	Logs     []*Log `json:"logs"`
	Total    int64  `json:"total"`
	Channels []int  `json:"channels,omitempty"`
}

type GetGroupLogsResult struct {
	GetLogsResult
	Models     []string `json:"models"`
	TokenNames []string `json:"token_names"`
}

func buildGetLogsQuery(
	group string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	modelName string,
	requestID string,
	tokenID int,
	tokenName string,
	channelID int,
	codeType CodeType,
	code int,
	ip string,
	user string,
) *gorm.DB {
	tx := LogDB.Model(&Log{})

	if requestID != "" {
		tx = tx.Where("request_id = ?", requestID)
	}

	if ip != "" {
		tx = tx.Where("ip = ?", ip)
	}

	if group != "" {
		tx = tx.Where("group_id = ?", group)
	}

	if modelName != "" {
		tx = tx.Where("model = ?", modelName)
	}

	if tokenName != "" {
		tx = tx.Where("token_name = ?", tokenName)
	}

	if channelID != 0 {
		tx = tx.Where("channel_id = ?", channelID)
	}

	switch {
	case !startTimestamp.IsZero() && !endTimestamp.IsZero():
		tx = tx.Where("created_at BETWEEN ? AND ?", startTimestamp, endTimestamp)
	case !startTimestamp.IsZero():
		tx = tx.Where("created_at >= ?", startTimestamp)
	case !endTimestamp.IsZero():
		tx = tx.Where("created_at <= ?", endTimestamp)
	}

	switch codeType {
	case CodeTypeSuccess:
		tx = tx.Where("code = 200")
	case CodeTypeError:
		tx = tx.Where("code != 200")
	default:
		if code != 0 {
			tx = tx.Where("code = ?", code)
		}
	}

	if tokenID != 0 {
		tx = tx.Where("token_id = ?", tokenID)
	}

	if user != "" {
		tx = tx.Where("user = ?", user)
	}

	return tx
}

func getLogs(
	group string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	modelName string,
	requestID string,
	tokenID int,
	tokenName string,
	channelID int,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (int64, []*Log, error) {
	var (
		total int64
		logs  []*Log
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		return buildGetLogsQuery(
			group,
			startTimestamp,
			endTimestamp,
			modelName,
			requestID,
			tokenID,
			tokenName,
			channelID,
			codeType,
			code,
			ip,
			user,
		).Count(&total).Error
	})

	g.Go(func() error {
		query := buildGetLogsQuery(
			group,
			startTimestamp,
			endTimestamp,
			modelName,
			requestID,
			tokenID,
			tokenName,
			channelID,
			codeType,
			code,
			ip,
			user,
		)
		if withBody {
			query = query.Preload("RequestDetail")
		} else {
			query = query.Preload("RequestDetail", func(db *gorm.DB) *gorm.DB {
				return db.Select("id", "log_id")
			})
		}

		limit, offset := toLimitOffset(page, perPage)

		return query.
			Order(getLogOrder(order)).
			Limit(limit).
			Offset(offset).
			Find(&logs).Error
	})

	if err := g.Wait(); err != nil {
		return 0, nil, err
	}

	return total, logs, nil
}

func GetLogs(
	startTimestamp time.Time,
	endTimestamp time.Time,
	modelName string,
	requestID string,
	channelID int,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (*GetLogsResult, error) {
	var (
		total    int64
		logs     []*Log
		channels []int
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		var err error

		channels, err = GetUsedChannels(startTimestamp, endTimestamp)
		return err
	})

	g.Go(func() error {
		var err error

		total, logs, err = getLogs(
			"",
			startTimestamp,
			endTimestamp,
			modelName,
			requestID,
			0,
			"",
			channelID,
			order,
			codeType,
			code,
			withBody,
			ip,
			user,
			page,
			perPage,
		)

		return err
	})

	if err := g.Wait(); err != nil {
		return nil, err
	}

	result := &GetLogsResult{
		Logs:     logs,
		Total:    total,
		Channels: channels,
	}

	return result, nil
}

func GetGroupLogs(
	group string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	modelName string,
	requestID string,
	tokenID int,
	tokenName string,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (*GetGroupLogsResult, error) {
	if group == "" {
		return nil, errors.New("group is required")
	}

	var (
		total      int64
		logs       []*Log
		tokenNames []string
		models     []string
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		var err error

		total, logs, err = getLogs(
			group,
			startTimestamp,
			endTimestamp,
			modelName,
			requestID,
			tokenID,
			tokenName,
			0,
			order,
			codeType,
			code,
			withBody,
			ip,
			user,
			page,
			perPage,
		)

		return err
	})

	g.Go(func() error {
		var err error

		tokenNames, err = GetGroupUsedTokenNames(group, startTimestamp, endTimestamp)
		return err
	})

	g.Go(func() error {
		var err error

		models, err = GetGroupUsedModels(group, tokenName, startTimestamp, endTimestamp)
		return err
	})

	if err := g.Wait(); err != nil {
		return nil, err
	}

	return &GetGroupLogsResult{
		GetLogsResult: GetLogsResult{
			Logs:  logs,
			Total: total,
		},
		Models:     models,
		TokenNames: tokenNames,
	}, nil
}

func buildSearchLogsQuery(
	group string,
	keyword string,
	requestID string,
	tokenID int,
	tokenName string,
	modelName string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	channelID int,
	codeType CodeType,
	code int,
	ip string,
	user string,
) *gorm.DB {
	tx := LogDB.Model(&Log{})

	if requestID != "" {
		tx = tx.Where("request_id = ?", requestID)
	}

	if ip != "" {
		tx = tx.Where("ip = ?", ip)
	}

	if group != "" {
		tx = tx.Where("group_id = ?", group)
	}

	if modelName != "" {
		tx = tx.Where("model = ?", modelName)
	}

	if tokenName != "" {
		tx = tx.Where("token_name = ?", tokenName)
	}

	if channelID != 0 {
		tx = tx.Where("channel_id = ?", channelID)
	}

	switch {
	case !startTimestamp.IsZero() && !endTimestamp.IsZero():
		tx = tx.Where("created_at BETWEEN ? AND ?", startTimestamp, endTimestamp)
	case !startTimestamp.IsZero():
		tx = tx.Where("created_at >= ?", startTimestamp)
	case !endTimestamp.IsZero():
		tx = tx.Where("created_at <= ?", endTimestamp)
	}

	switch codeType {
	case CodeTypeSuccess:
		tx = tx.Where("code = 200")
	case CodeTypeError:
		tx = tx.Where("code != 200")
	default:
		if code != 0 {
			tx = tx.Where("code = ?", code)
		}
	}

	if tokenID != 0 {
		tx = tx.Where("token_id = ?", tokenID)
	}

	if user != "" {
		tx = tx.Where("user = ?", user)
	}

	// Handle keyword search for zero value fields
	if keyword != "" {
		var (
			conditions []string
			values     []any
		)

		if requestID == "" {
			conditions = append(conditions, "request_id = ?")
			values = append(values, keyword)
		}

		if group == "" {
			conditions = append(conditions, "group_id = ?")
			values = append(values, keyword)
		}

		if modelName == "" {
			conditions = append(conditions, "model = ?")
			values = append(values, keyword)
		}

		if tokenName == "" {
			conditions = append(conditions, "token_name = ?")
			values = append(values, keyword)
		}

		// if num := String2Int(keyword); num != 0 {
		// 	if channelID == 0 {
		// 		conditions = append(conditions, "channel_id = ?")
		// 		values = append(values, num)
		// 	}
		// }

		// if ip != "" {
		// 	conditions = append(conditions, "ip = ?")
		// 	values = append(values, ip)
		// }

		// slow query
		// if common.UsingPostgreSQL {
		// 	conditions = append(conditions, "content ILIKE ?")
		// } else {
		// 	conditions = append(conditions, "content LIKE ?")
		// }
		// values = append(values, "%"+keyword+"%")

		if len(conditions) > 0 {
			tx = tx.Where(fmt.Sprintf("(%s)", strings.Join(conditions, " OR ")), values...)
		}
	}

	return tx
}

func searchLogs(
	group string,
	keyword string,
	requestID string,
	tokenID int,
	tokenName string,
	modelName string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	channelID int,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (int64, []*Log, error) {
	var (
		total int64
		logs  []*Log
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		return buildSearchLogsQuery(
			group,
			keyword,
			requestID,
			tokenID,
			tokenName,
			modelName,
			startTimestamp,
			endTimestamp,
			channelID,
			codeType,
			code,
			ip,
			user,
		).Count(&total).Error
	})

	g.Go(func() error {
		query := buildSearchLogsQuery(
			group,
			keyword,
			requestID,
			tokenID,
			tokenName,
			modelName,
			startTimestamp,
			endTimestamp,
			channelID,
			codeType,
			code,
			ip,
			user,
		)

		if withBody {
			query = query.Preload("RequestDetail")
		} else {
			query = query.Preload("RequestDetail", func(db *gorm.DB) *gorm.DB {
				return db.Select("id", "log_id")
			})
		}

		limit, offset := toLimitOffset(page, perPage)

		return query.
			Order(getLogOrder(order)).
			Limit(limit).
			Offset(offset).
			Find(&logs).Error
	})

	if err := g.Wait(); err != nil {
		return 0, nil, err
	}

	return total, logs, nil
}

func SearchLogs(
	keyword string,
	requestID string,
	group string,
	tokenID int,
	tokenName string,
	modelName string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	channelID int,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (*GetLogsResult, error) {
	var (
		total    int64
		logs     []*Log
		channels []int
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		var err error

		total, logs, err = searchLogs(
			group,
			keyword,
			requestID,
			tokenID,
			tokenName,
			modelName,
			startTimestamp,
			endTimestamp,
			channelID,
			order,
			codeType,
			code,
			withBody,
			ip,
			user,
			page,
			perPage,
		)

		return err
	})

	g.Go(func() error {
		var err error

		channels, err = GetUsedChannels(startTimestamp, endTimestamp)
		return err
	})

	if err := g.Wait(); err != nil {
		return nil, err
	}

	result := &GetLogsResult{
		Logs:     logs,
		Total:    total,
		Channels: channels,
	}

	return result, nil
}

func SearchGroupLogs(
	group string,
	keyword string,
	requestID string,
	tokenID int,
	tokenName string,
	modelName string,
	startTimestamp time.Time,
	endTimestamp time.Time,
	order string,
	codeType CodeType,
	code int,
	withBody bool,
	ip string,
	user string,
	page int,
	perPage int,
) (*GetGroupLogsResult, error) {
	if group == "" {
		return nil, errors.New("group is required")
	}

	var (
		total      int64
		logs       []*Log
		tokenNames []string
		models     []string
	)

	g := new(errgroup.Group)

	g.Go(func() error {
		var err error

		total, logs, err = searchLogs(group,
			keyword,
			requestID,
			tokenID,
			tokenName,
			modelName,
			startTimestamp,
			endTimestamp,
			0,
			order,
			codeType,
			code,
			withBody,
			ip,
			user,
			page,
			perPage,
		)

		return err
	})

	g.Go(func() error {
		var err error

		tokenNames, err = GetGroupUsedTokenNames(group, startTimestamp, endTimestamp)
		return err
	})

	g.Go(func() error {
		var err error

		models, err = GetGroupUsedModels(group, tokenName, startTimestamp, endTimestamp)
		return err
	})

	if err := g.Wait(); err != nil {
		return nil, err
	}

	result := &GetGroupLogsResult{
		GetLogsResult: GetLogsResult{
			Logs:  logs,
			Total: total,
		},
		Models:     models,
		TokenNames: tokenNames,
	}

	return result, nil
}

func DeleteOldLog(timestamp time.Time) (int64, error) {
	result := LogDB.Where("created_at < ?", timestamp).Delete(&Log{})
	return result.RowsAffected, result.Error
}

func DeleteGroupLogs(groupID string) (int64, error) {
	if groupID == "" {
		return 0, errors.New("group is required")
	}

	result := LogDB.Where("group_id = ?", groupID).Delete(&Log{})

	return result.RowsAffected, result.Error
}

func GetIPGroups(threshold int, start, end time.Time) (map[string][]string, error) {
	if threshold < 1 {
		threshold = 1
	}

	var selectClause string
	if common.UsingSQLite {
		selectClause = "ip, GROUP_CONCAT(DISTINCT group_id) as groups"
	} else {
		selectClause = "ip, STRING_AGG(DISTINCT group_id, ',') as groups"
	}

	db := LogDB.Model(&Log{}).
		Select(selectClause).
		Group("ip").
		Having("COUNT(DISTINCT group_id) >= ?", threshold)

	switch {
	case !start.IsZero() && !end.IsZero():
		db = db.Where("created_at BETWEEN ? AND ?", start, end)
	case !start.IsZero():
		db = db.Where("created_at >= ?", start)
	case !end.IsZero():
		db = db.Where("created_at <= ?", end)
	}

	db.Where("ip IS NOT NULL AND ip != '' AND group_id != ''")

	result := make(map[string][]string)

	rows, err := db.Rows()
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	for rows.Next() {
		var (
			ip     string
			groups string
		)

		err = rows.Scan(&ip, &groups)
		if err != nil {
			return nil, err
		}

		result[ip] = strings.Split(groups, ",")
	}

	return result, nil
}