package domain

import (
	"admin/apps/game/domain/projects"
	"admin/apps/game/domain/repo"
	"admin/internal/consts"
	"admin/internal/errcode"
	"admin/internal/model/dto"
	"admin/lib/xlog"
	"context"
	"github.com/jmoiron/sqlx"
	"github.com/xuri/excelize/v2"
	"gorm.io/gorm"
	"strconv"
	"time"
)

type GameLogService struct {
	projectRepo repo.IProjectRepo
	repo        repo.IGameLogRepo
}

func NewGameLogSvc(db *gorm.DB, metaDb *gorm.DB, clickHouseSqlx *sqlx.DB) *GameLogService {
	return &GameLogService{projectRepo: repo.NewProjectRepo(db), repo: repo.NewGameLogRepo(metaDb, clickHouseSqlx)}
}

func (svc *GameLogService) QueryEventList(projectId int, eventName []string, serverId int, account, roleId string,
	pageNo, pageLen int, dateStart, dateEnd time.Time) (totalCount int, fieldsDescInfo []*dto.GameLogFieldInfo, rows [][]any, err error) {

	_, projectEt, find, err := svc.projectRepo.GetById(projectId)
	if err != nil {
		return 0, nil, nil, err
	}
	if !find {
		return 0, nil, nil, errcode.New(errcode.ServerError, "not found project %v db data", projectId)
	}
	appId := projectEt.Po.BiAdminAppId

	if appId == 0 {
		return 0, make([]*dto.GameLogFieldInfo, 0), make([][]any, 0), nil
	}

	var attrList []*repo.AttrInfo
	attrList, err = svc.repo.QueryAttrListByEvent(appId, eventName)
	if err != nil {
		return
	}

	querier := svc.repo.NewEventListQuerier("xwl_event"+strconv.Itoa(appId), eventName, attrList)
	totalCount, fieldsDescInfo, rows, err = querier.CondRoleId(serverId, roleId).CondAccount(serverId, account).
		Go(context.Background(), pageNo, pageLen, dateStart, dateEnd)
	if err != nil {
		xlog.Warnf("event list error:%v", err)
		return
	}

	hook := projects.GetProjectResourceHook(projectEt, consts.ResourcesName_GameLog)
	if h, ok := hook.(projects.IGameLogEventListHook); ok {
		totalCount, fieldsDescInfo, rows = h.Trim(projectEt, eventName, totalCount, fieldsDescInfo, rows)
	}

	if rows == nil {
		rows = make([][]any, 0)
	}

	return
}

func (svc *GameLogService) QueryEventListExport(projectId int, eventName []string, serverId int, account, roleId string,
	dateStart, dateEnd time.Time) (filePath string, err error) {

	_, projectEt, find, err := svc.projectRepo.GetById(projectId)
	if err != nil {
		return "", err
	}
	if !find {
		return "", errcode.New(errcode.ServerError, "not found project %v db data", projectId)
	}
	appId := projectEt.Po.BiAdminAppId

	if appId == 0 {
		return "", nil
	}

	var attrList []*repo.AttrInfo
	attrList, err = svc.repo.QueryAttrListByEvent(appId, eventName)
	if err != nil {
		return
	}

	pageNo := 1
	pageLen := 1000

	querier := svc.repo.NewEventListQuerier("xwl_event"+strconv.Itoa(appId), eventName, attrList)
	querier.CondRoleId(serverId, roleId).CondAccount(serverId, account)

	queryEventLogFun := func(curPageNo, curPageLen int) (int, []*dto.GameLogFieldInfo, [][]any, error) {
		a, b, c, err := querier.Go(context.Background(), curPageNo, curPageLen, dateStart, dateEnd)
		if err != nil {
			return 0, nil, nil, err
		}
		hook := projects.GetProjectResourceHook(projectEt, consts.ResourcesName_GameLog)
		if h, ok := hook.(projects.IGameLogEventListHook); ok {
			a, b, c = h.Trim(projectEt, eventName, a, b, c)
		}
		return a, b, c, nil
	}

	// 先读第一页看看总数
	totalCount, fieldsDescInfo, tmpRows, err := queryEventLogFun(pageNo, pageLen)
	if err != nil {
		xlog.Warnf("event list error:%v", err)
		return
	}

	filePath = "/tmp/" + "gamelog-" + time.Now().Format("20060102150405") + ".xlsx"
	f := excelize.NewFile()
	defer f.Close()
	f.SetDefaultFont("Arial")
	index, err := f.NewSheet("Sheet1")
	if err != nil {
		return "", errcode.New(errcode.ServerError, "new excel sheet error:%v", err)
	}
	f.SetActiveSheet(index)
	sheetWriter, err := f.NewStreamWriter("Sheet1")
	if err != nil {
		return "", errcode.New(errcode.ServerError, "new excel sheet writer error:%v", err)
	}

	// 写入excel文件头
	writeHeaders := make([]any, 0, len(fieldsDescInfo))
	for _, field := range fieldsDescInfo {
		writeHeaders = append(writeHeaders, field.Alias)
	}
	headerCell, _ := excelize.CoordinatesToCellName(1, 1)
	err = sheetWriter.SetRow(headerCell, writeHeaders)
	if err != nil {
		xlog.Warnf("set row error:%v", err)
		return "", errcode.New(errcode.ServerError, "set row error:%v", err)
	}
	xlog.Tracef("set headers %+v ok", writeHeaders)
	//err = sheetWriter.Flush()
	//if err != nil {
	//	return "", errcode.New(errcode.ServerError, "flush error:%v", err)
	//}

	writeQueue := make(chan [][]any, 20)
	resultQueue := make(chan error, 1)
	// 启动另一个协程来写文件
	go func() {
		curRowNum := 2
		timeout := time.NewTicker(time.Second * 120)
		for {
			select {
			case recvRows, ok := <-writeQueue:
				if !ok {
					return
				}
				for _, row := range recvRows {
					rowCell, _ := excelize.CoordinatesToCellName(1, curRowNum)
					err = sheetWriter.SetRow(rowCell, row)
					if err != nil {
						resultQueue <- errcode.New(errcode.ServerError, "set row error:%v", err)
						return
					}
					xlog.Tracef("set row %+v ok", row)
					curRowNum++
				}

				if curRowNum >= totalCount {
					err = sheetWriter.Flush()
					if err != nil {
						resultQueue <- errcode.New(errcode.ServerError, "flush error:%v", err)
						return
					}
					saveErr := f.SaveAs(filePath)
					if saveErr != nil {
						err = errcode.New(errcode.ServerError, "save as error:%v", err)
						return
					}
					xlog.Infof("finish write total count %v to file:%v", curRowNum, filePath)
					// 搞完了
					resultQueue <- nil
					return
				}
			case <-timeout.C:
				xlog.Warnf("timeout!!")
			}
		}
	}()

	writeFileHandler := func(fields []*dto.GameLogFieldInfo, rows [][]any) {
		writeQueue <- rows
	}

	// 写第一页数据
	writeFileHandler(fieldsDescInfo, tmpRows)

	if totalCount >= pageLen {
		// 总数还有，分页读了
		totalPageNum := totalCount/pageLen + 1

		for i := 1; i <= totalPageNum; i++ {
			if i == 1 {
				// 第一页读过了，跳过
				continue
			}
			totalCount, fieldsDescInfo, tmpRows, err = queryEventLogFun(pageNo, i*pageLen)
			if err != nil {
				xlog.Warnf("event list error:%v", err)
				return
			}
			writeFileHandler(fieldsDescInfo, tmpRows)
		}
	}

	err = <-resultQueue

	if err != nil {
		xlog.Warnf("event list write excel file:%v", err)
	} else {
		xlog.Infof("export file %v successfully!", filePath)
	}

	return
}