package userTag

import (
	"context"
	"fmt"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/util/gconv"
	"log"
	"strings"
)

var (
	ctx = context.Background()
)

func BaseUserTag() error {
	defer func() {
		//清理备份数据
		g.DB().Exec(ctx, `DROP TABLE dwd_d_user_tag_back;`)
		g.DB().Exec(ctx, `DROP TABLE dwd_d_user_tag_tmp;`)
	}()
	if _, err := g.DB().Exec(ctx, fmt.Sprintf(`CREATE TABLE pub_tags.dwd_d_user_tag_tmp
	(

	    baseUserId UInt64,

	    bitobj AggregateFunction(groupBitmap,UInt64)
	)
	ENGINE = AggregatingMergeTree
	ORDER BY baseUserId
	SETTINGS index_granularity = 8192;`)); err != nil {
		g.Log().Errorf(ctx, "创建表异常%v", err)
		return err
	} //创建表数据
	//统计插入user数据
	var userTags []string
	tagUsers := make(map[int64][]string)
	tagUser, _ := g.DB().Query(ctx, "SELECT id,bitmapToArray(bitobj) as bitobj FROM dwd_d_tag")
	if tagUser != nil {
		for _, re := range tagUser.List() {
			id := gconv.Int64(re["id"])
			//user := make(map[int64]bool)
			for _, value := range gconv.Int64s(re["bitobj"]) {
				//user[value] = true
				tagUsers[value] = append(tagUsers[value], fmt.Sprintf(`toUInt64(%d)`, id))
			}
			//tagUsers[id] = &user
		}
	}

	baseUser, err := g.DB().Query(ctx, "SELECT DISTINCT(baseUserId) as baseUserId FROM dwd_mgo_position")
	if err == nil && !baseUser.IsEmpty() {
		log.Println("len===", len(tagUsers), baseUser.Len())
		for _, m := range baseUser.List() {
			baseUserId := gconv.Int64(m["baseUserId"])
			if vs, ok := tagUsers[baseUserId]; ok {
				userTags = append(userTags, fmt.Sprintf(`(%d,bitmapBuild([%s]))`, baseUserId, strings.Join(vs, ",")))
				delete(tagUsers, baseUserId)
			}

			if len(userTags) == 2000 { //插入新表
				if _, err = g.DB().Exec(ctx, fmt.Sprintf(`INSERT INTO dwd_d_user_tag_tmp 
VALUES %s`, strings.Join(userTags, ","))); err != nil {
					log.Println(" 新插入 dwd_d_user_tag 表数据异常")
					return err
				}
				userTags = []string{}
			}
		}
	}
	if len(userTags) > 0 { //插入新表
		if _, err = g.DB().Exec(ctx, fmt.Sprintf(`INSERT INTO dwd_d_user_tag_tmp 
VALUES %s`, strings.Join(userTags, ","))); err != nil {
			log.Println(" 新插入 dwd_d_user_tag 表数据异常", err.Error())
			return err
		}
	}
	_, err = g.DB().Exec(ctx, "RENAME TABLE dwd_d_user_tag TO dwd_d_user_tag_back;")
	if err != nil {
		return err
	}
	_, err = g.DB().Exec(ctx, "RENAME TABLE dwd_d_user_tag_tmp TO dwd_d_user_tag;")
	if err != nil {
		return err
	}
	return err
}