mic.go

package group_m

import (
	"context"
	"encoding/json"
	"git.hilo.cn/hilo-common/domain"
	"git.hilo.cn/hilo-common/mylogrus"
	"git.hilo.cn/hilo-common/resource/config"
	"git.hilo.cn/hilo-common/resource/mysql"
	"git.hilo.cn/hilo-common/resource/redisCli"
	"git.hilo.cn/hilo-common/sdk/tencentyun"
	"github.com/bluele/gcache"
	redis2 "github.com/go-redis/redis/v8"
	"gorm.io/gorm"
	"hilo-group/_const/enum/group_e"
	"hilo-group/_const/redis_key"
	"hilo-group/common"
	"hilo-group/domain/model/noble_m"
	"hilo-group/domain/model/res_m"
	"hilo-group/domain/model/user_m"
	"hilo-group/myerr"
	"hilo-group/myerr/bizerr"
	"runtime/debug"
	"strconv"
	"strings"
	"time"
)

/**
 1: 主要关注点：分布式事务一致性，高效。
 2：存储介质：redis，理由：不重要，高频数据请求，持久化过程注意点:利用redis单次操作作为原子性，利用原子性的操作结果（判断更新数量，成败）来保证整个麦位的原子性操作。
 3：分布式事务一致性（声网，服务器）。以服务端数据为准。客户端保持同声网数据一致。5分钟C端请求服务的信息，进行同步，纠正声网数据不一致问题。
 4: 存储结构：

ps: micUser持久话动作，没有归属于repo，因为需要处理并发下一致性问题。因此，在方法中，进行持久化，
*/

/**
* redis记录。
  micHasGroup -> set, 定于：可能麦上有人的群组(确保：麦上有人一定在该集合中)， 增加时机：加入麦位之前， 减少时机：利用lua表达式控制顺序，没有人在麦上，则清理数据。（lua防止并发，麦上有人后，被移除出数据）
  micNumType -> groupUuid string, 有生命周期，缓存不存在的时候，就找数据库，更新：先删除缓存，再修改数据库。
  核心：mic -> groupUuid Map(key:i, value:Mic) 为了减少redis的数据，当mic的值为默认值时，执行的HDel
  micUser -> groupUuid Map(key:i value:MicUser)
  userInMic -> map(key:extendId, value:MicUser)  PS:userInMic同micUser 具有一致性。（原子操作）作用：用于查询某个用户在哪个麦上
*/

//麦位数量类型
type MicNumType struct {
	model     *domain.Model
	GroupUuid string
	T         group_e.GroupMicNumType
}

const MaxMicNum = 20

//清理缓存
func (micNumType *MicNumType) ClearCache() {
	micNumType.model.Log.Infof("group_m MicNumType ClearCache groupUuid:%v", micNumType.GroupUuid)
	_, err := redisCli.GetRedis().Del(context.Background(), redis_key.GetPrefixGroupMicNumType(micNumType.GroupUuid)).Result()
	if err != nil {
		micNumType.model.Log.Errorf("group_m MicNumType ClearCache groupUuid:%v err:%v", micNumType.GroupUuid, err)
	}
}

//同步到缓存，用set，强制修改值
func (micNumType *MicNumType) AddCache() error {
	micNumType.model.Log.Infof("group_m MicNumType AddCache groupUuid:%v, groupMicNumType:%v", micNumType.GroupUuid, micNumType.T)
	_, err := redisCli.GetRedis().Set(context.Background(), redis_key.GetPrefixGroupMicNumType(micNumType.GroupUuid), strconv.Itoa(int(micNumType.T)), micExpire).Result()
	if err != nil {
		micNumType.model.Log.Errorf("MicNumType add redis set err:%v", err)
		return err
	}
	return nil
}

//获取数据，先从缓存中获取，没有则从数据库中获取,如果不存在，则同步到redis， 必须用setnx，避免同修改的时候，并发让缓存错误。
func GetMicNumType(model *domain.Model, groupUuid string) (group_e.GroupMicNumType, error) {
	t, err := redisCli.GetRedis().Get(context.Background(), redis_key.GetPrefixGroupMicNumType(groupUuid)).Result()
	if err != nil {
		if err != redis2.Nil {
			return 0, myerr.WrapErr(err)
		} else {
			//获取数据库的值，同步到缓存
			groupInfo, _ := GetGroupInfo(model, groupUuid)
			if groupInfo == nil {
				return 0, bizerr.GroupNotFound
			}
			flag, err := redisCli.GetRedis().SetNX(context.Background(), redis_key.GetPrefixGroupMicNumType(groupUuid), strconv.Itoa(int(groupInfo.MicNumType)), micExpire).Result()
			model.Log.Infof("GetMicNumType redis SetNX groupUuid:%v, flag:%v, err:%v", groupUuid, flag, err)
			return groupInfo.MicNumType, nil
		}
	} else {
		groupMicNumType, err := strconv.ParseUint(t, 10, 8)
		if err != nil {
			return 0, nil
		}
		return group_e.GroupMicNumType(groupMicNumType), nil
	}
}

//6个小时
const expireMinute = 60 * 60 * 12
const micExpire = expireMinute * time.Second

//麦位基本信息。
type Mic struct {
	model *domain.Model
	//群组uuid
	GroupUuid string
	//麦位
	I int
	//锁，是否有锁 true:锁了， false:没锁
	Lock bool
	//麦位静音
	MicForbid bool
}

//发言，注意（发言是在麦位上）
type MicUser struct {
	model *domain.Model
	//群组uuid
	GroupUuid string
	//麦位
	I int
	//麦中的人
	ExternalId string
	//
	UserId uint64
	//静音 true:静音，false:没有静音
	Forbid bool
	//上麦的的时间戳
	Timestamp int64
}

//记录麦位上有谁。用于
type UserInMic struct {
	//群组uuid
	GroupUuid string
	//麦位
	I int
	//userId
	UserId uint64
}

//60*5
//const micInExpireScript = "local flag = redis.call('expire', '{prefixGroupMicUser}', '300') if flag == 1 then return redis.call('expire', '{prefixGroupUserMic}', '300') end return 0 "
//先让user在那个麦上续时间，再让麦上有谁续时间？ 目前日志统计中，并没有发现只执行一半的，全部执行成功。
const micInExpireScript = "local flag = redis.call('expire', '{prefixGroupMicUser}', '{micExpire}') if flag == 1 then return redis.call('expire', '{prefixGroupUserMic}', '{micExpire}') end return 0 "

func UpdateMicExpire(model *domain.Model, groupUuid string, externalId string) error {
	micUser, err := GetMicUserByExternalId(model, externalId)
	if err != nil {
		return err
	}
	//
	if micUser != nil {
		if micUser.GroupUuid == groupUuid {
			//使用lua表达式
			script := strings.Replace(
				strings.Replace(
					strings.Replace(micInExpireScript, "{micExpire}", strconv.Itoa(expireMinute), -1), "{prefixGroupMicUser}", redis_key.GetPrefixGroupMicUser(micUser.GroupUuid, micUser.I), -1), "{prefixGroupUserMic}", redis_key.GetPrefixGroupUserInMic(externalId), -1)
			//redisCli.GetRedis().ScriptFlush(context.Background())
			n, err := redis2.NewScript(script).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
			if n == 0 {
				mylogrus.MyLog.Infof("UpdateMicExpire script result:n=%v", n)
			}
			if err != nil {
				return myerr.WrapErr(err)
			}

			//存在才更新。
			/*			if flag, err := redisCli.GetRedis().Expire(context.Background(), redis.GetPrefixGroupUserInMic(externalId), micExpire).Result(); err == nil {
						if flag {
							redisCli.GetRedis().Expire(context.Background(), redis.GetPrefixGroupMicUser(micUser.GroupUuid, micUser.I), micExpire)
							//基本一致，接受容错，如果担心错误，可以反向验证。目前不考虑。因为这个接口频率太高了。
						}
					}*/
		}
	}
	return nil
}

//12个小时
//2022-07-20 升级，判断是自己是否已经在别的麦上了
//const micInScript = "local flag = redis.call('SET', '{prefixGroupMicUser}', '{micUserStr}', 'ex', '{micExpire}', 'nx') if flag ~= false then redis.call('SETEX', '{prefixGroupUserMic}', '{micExpire}', '{groupUserStr}') return 1 end return 2 "
const micInScript = "local flag = redis.call('EXISTS', '{prefixGroupUserMic}') if flag == 0 then local flag1 = redis.call('SET', '{prefixGroupMicUser}', '{micUserStr}', 'ex', '{micExpire}', 'nx') if flag1 ~= false then redis.call('SETEX', '{prefixGroupUserMic}', '{micExpire}', '{groupUserStr}') return 1 end return 2 end return 3"

//

//上麦(自己)，
//规则：1：加锁了不能上麦 2：麦上有人，不能上麦
func (mic *Mic) In(userId uint64, externalId string) error {
	// 群是否被封禁, 呃，，，呃，，，呃，，，
	banned := GroupBanned{ImGroupId: mic.GroupUuid}
	if err := banned.Get(mic.model); err != gorm.ErrRecordNotFound {
		return bizerr.GroupIsBanned
	}
	//判断群组设置上的麦 是否被关闭
	groupInfo, err := GetGroupInfo(mic.model, mic.GroupUuid)
	if err != nil {
		return err
	}
	if groupInfo.MicOn == false {
		return bizerr.GroupInfoMicClosed
	}

	//麦被加锁了
	if mic.Lock {
		return bizerr.GroupMicLock
	}
	//设置值到redis
	micUserStr, err := micUserToStr(MicUser{
		GroupUuid:  mic.GroupUuid,
		I:          mic.I,
		ExternalId: externalId,
		UserId:     userId,
		Forbid:     false,
		Timestamp:  time.Now().Unix(),
	})
	if err != nil {
		return err
	}
	//让自己踢出去。
	/*	if str, err := redisCli.GetRedis().Get(context.Background(), redis_key.GetPrefixGroupUserInMic(externalId)).Result(); err != nil {
			if err != redis2.Nil {
				return myerr.WrapErr(err)
			}
		} else {
			if userInMic, err := strToUserInMic(str); err != nil {
				return err
			} else {
				if micUser, err := GetMicUser(mic.model, userInMic.GroupUuid, userInMic.I); err != nil {
					return err
				} else {
					if micUser != nil {
						if err := micUser.LeaveByUser(userId, externalId); err != nil {
							return err
						}
					}
				}
			}
		}*/

	//加入到麦上可能有人的集合中。
	groupMicHasIn(mic.model, mic.GroupUuid, userId)

	//lua上麦，让麦上的人同人在麦上，保持原子性操作
	//清理脚本，不然redis占用内存越来越高，并且不会释放
	groupUserStr, err := userInMicToStr(mic.GroupUuid, mic.I, userId)
	if err != nil {
		return err
	}
	//r, err := redis2.NewScript(micInScript).Run(context.Background(), redisCli.GetRedis(), []string{redis.GetPrefixGroupMicUser(mic.groupUuid), strconv.Itoa(mic.i), redis.GetPrefixGroupUserMic(), externalId}, micUserStr, groupUserStr).Result()
	script := strings.Replace(strings.Replace(
		strings.Replace(
			strings.Replace(
				strings.Replace(micInScript, "{micExpire}", strconv.Itoa(expireMinute), -1), "{prefixGroupMicUser}", redis_key.GetPrefixGroupMicUser(mic.GroupUuid, mic.I), -1), "{micUserStr}", micUserStr, -1), "{prefixGroupUserMic}", redis_key.GetPrefixGroupUserInMic(externalId), -1), "{groupUserStr}", groupUserStr, -1)
	//redisCli.GetRedis().ScriptFlush(context.Background())
	r, err := redis2.NewScript(script).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
	mic.model.Log.Infof("micUser In micInScript:%v, result:%v", script, r)
	d := r.(int64)
	if err != nil {
		return myerr.WrapErr(err)
	}
	if d == int64(2) {
		return bizerr.GroupMicHasUser
	}
	if d == int64(3) {
		return bizerr.GroupMicUserHasIn
	}

	//离开动作已结束，增加到队列中
	MicChangeRPush(mic.model, mic.GroupUuid, mic.I)

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(mic.model, mic.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicInSignal,
		Source: externalId,
	}, false)
	return nil
}

const micLeaveScript = "local flag = redis.call('DEL', '{prefixGroupMicUser}') if flag == 1 then return redis.call('Del',  '{prefixGroupUserMic}') end return 2 "

//离开麦（自己）
//规则：1：自己的麦
func (micUser *MicUser) leave(operateUserId uint64, operateExternalId string) error {
	//
	if micUser == nil {
		return bizerr.GroupMicNoUser
	}
	//
	externalId := micUser.ExternalId
	// 超管处理
	if flag, err := user_m.IsSuperManagerV2(micUser.model, operateUserId, micUser.UserId); err != nil {
		return err
	} else if !flag {
		if micUser.ExternalId != operateExternalId {
			//检查权限,管理人权限, 不过不拥有管理人权限，则抛出错误
			if err := MgrPermission(micUser.model, micUser.GroupUuid, operateUserId, micUser.UserId); err != nil {
				return err
			}
		}
	}
	//设置值到redis
	//redisCli.GetRedis().ScriptFlush(context.Background())
	script := strings.Replace(strings.Replace(
		micLeaveScript, "{prefixGroupMicUser}", redis_key.GetPrefixGroupMicUser(micUser.GroupUuid, micUser.I), -1), "{prefixGroupUserMic}", redis_key.GetPrefixGroupUserInMic(externalId), -1)
	r, err := redis2.NewScript(script).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
	d := r.(int64)
	micUser.model.Log.Infof("micUser leave micLeaveScript:%v, result:%v", script, d)
	if err != nil {
		return err
	}
	if d == 2 {
		//不在该麦位上，可能被redis，过期移除了。
		//return bizerr.GroupMicErr
	}

	//离开动作已结束，增加到队列中
	MicChangeRPush(micUser.model, micUser.GroupUuid, micUser.I)

	return nil
}

//邀请的翻译
var inviteMicMsgTranslate = map[string]string{}

//邀请上麦
func InviteMicIn(model *domain.Model, groupUuid string, operateUserId uint64, beInvitedExternalId string) error {

	model.Log.Infof("mic InviteMicIn operateUserId:%d, beInvitedExternalId:%s", operateUserId, beInvitedExternalId)
	if err := CheckPermission(model, groupUuid, operateUserId); err != nil {
		return err
	}

	user, err := user_m.GetUser(model, operateUserId)
	if err != nil {
		return err
	}

	beInvitedUser, err := user_m.GetUserByExtId(model, beInvitedExternalId)
	if err != nil {
		return err
	}

	context, ok := inviteMicMsgTranslate[beInvitedUser.Language]
	if ok == false {
		context = inviteMicMsgTranslate["en"]
	}
	context = strings.Replace(context, "{nick}", user.Nick, -1)

	sendSignalMsg(model, groupUuid, GroupSystemMsg{
		MsgId:   group_e.GroupInviteMicInSignal,
		Source:  user.ExternalId,
		Target:  beInvitedExternalId,
		Content: context,
	}, false)

	return nil
}

// 用户操作下麦（自己或者管理人）fixme: 参数往往是错的
func (micUser *MicUser) LeaveByUser(operateUserId uint64, operateExternalId string) error {
	micUser.model.Log.Infof("mic LeaveByUser userId:%d", operateUserId)
	if err := micUser.leave(operateUserId, operateExternalId); err != nil {
		return err
	}

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(micUser.model, micUser.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicOutSignal,
		Source: operateExternalId,
	}, false)

	return nil
}

/*func (micUser *MicUser) LeaveBySocket(operateUserId uint64, operateExternalId string) error {
	micUser.model.Log.Infof("mic leaveBySocket userId:%d", operateUserId)
	if err := micUser.leave(operateUserId, operateExternalId); err != nil {
		return err
	}

	// 发信令，让前端重新拉取，接受容错，
	go func(groupId, externalId string) {
		defer func() {
			if r := recover(); r != nil {
				//打印错误堆栈信息
				mylogrus.MyLog.Errorf("SendCustomMsg: LeaveBySocket SYSTEM ACTION PANIC: %v, stack: %v", r, string(debug.Stack()))
			}
		}()
		sendSignalMsg(groupId, GroupSystemMsg{
			MsgId:  group_e.GroupSocketMicOutSignal,
			Source: externalId,
		})
	}(micUser.GroupUuid, operateExternalId)
	return nil
}*/

//锁。（管理人加锁）
//规则：1：麦上有人，不能锁 2：必须是管理人以上岗位
//Multi EXEC， 保证了加锁的时候，没有人
func (mic *Mic) MgrLock(userId uint64, externalId string) error {
	//获取麦上的人
	micUser, err := GetMicUser(mic.model, mic.GroupUuid, mic.I)
	if err != nil {
		return err
	}
	//
	if micUser != nil {
		return bizerr.GroupMicHasUser
	}
	//判断权限
	if err := CheckPermission(mic.model, mic.GroupUuid, userId); err != nil {
		return err
	}
	mic.Lock = true
	//设置值到redis
	micStr, err := micToStr(*mic)
	if err != nil {
		return err
	}
	if _, err = redisCli.GetRedis().HSet(context.Background(), redis_key.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I), micStr).Result(); err != nil {
		return myerr.WrapErr(err)
	}

	MicChangeRPush(mic.model, mic.GroupUuid, mic.I)

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(mic.model, mic.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicLockSignal,
		Source: externalId,
	}, false)
	return nil
}

//去除锁。(管理人解锁)
//规则，必须是管理人才能解锁
func (mic *Mic) MgrUnLock(userId uint64, externalId string) error {
	//判断权限
	if err := CheckPermission(mic.model, mic.GroupUuid, userId); err != nil {
		return err
	}
	//判断权限
	mic.Lock = false
	//移除
	if _, err := redisCli.GetRedis().HDel(context.Background(), redis_key.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I)).Result(); err != nil {
		return myerr.WrapErr(err)
	}
	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(mic.model, mic.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicUnLockSignal,
		Source: externalId,
	}, false)

	MicChangeRPush(mic.model, mic.GroupUuid, mic.I)

	return nil

	//设置值到redis
	/*	micStr, err := micToStr(*mic)
		if err != nil {
			return err
		}

		if _, err = redisCli.GetRedis().HSet(context.Background(), redis.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I), micStr).Result(); err != nil {
			return myerr.WrapErr(err)
		}
		return nil*/
}

// 麦位静音
func (mic *Mic) MgrMute(userId uint64, externalId string) error {
	//判断权限
	if err := CheckPermission(mic.model, mic.GroupUuid, userId); err != nil {
		return err
	}
	mic.MicForbid = true
	//设置值到redis
	micStr, err := micToStr(*mic)
	if err != nil {
		return err
	}
	if _, err = redisCli.GetRedis().HSet(context.Background(), redis_key.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I), micStr).Result(); err != nil {
		return myerr.WrapErr(err)
	}

	MicChangeRPush(mic.model, mic.GroupUuid, mic.I)

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(mic.model, mic.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicLockSignal,
		Source: externalId,
	}, false)
	return nil
}

// 麦位解除静音
func (mic *Mic) MgrUnMute(userId uint64, externalId string) error {
	//判断权限
	if err := CheckPermission(mic.model, mic.GroupUuid, userId); err != nil {
		return err
	}
	// 移除
	if _, err := redisCli.GetRedis().HDel(context.Background(), redis_key.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I)).Result(); err != nil {
		return myerr.WrapErr(err)
	}
	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(mic.model, mic.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicUnLockSignal,
		Source: externalId,
	}, false)

	MicChangeRPush(mic.model, mic.GroupUuid, mic.I)

	return nil

	//设置值到redis
	/*	micStr, err := micToStr(*mic)
		if err != nil {
			return err
		}

		if _, err = redisCli.GetRedis().HSet(context.Background(), redis.GetPrefixGroupMic(mic.GroupUuid), strconv.Itoa(mic.I), micStr).Result(); err != nil {
			return myerr.WrapErr(err)
		}
		return nil*/
}

//开麦, 管理人 同 自己能开麦
//规则：1：自己开麦 2：管理人开麦
func (micUser *MicUser) SpeechOpen(userId uint64, externalId string) error {
	if micUser == nil {
		return bizerr.GroupMicNoUser
	} else {
		if micUser.ExternalId == externalId {
			micUser.Forbid = false
		} else {
			//检查是不是管理人
			if err := CheckPermission(micUser.model, micUser.GroupUuid, userId); err != nil {
				return err
			}
			micUser.Forbid = false
		}
	}
	//设置值到redis
	micUserStr, err := micUserToStr(*micUser)
	if err != nil {
		return err
	}
	if _, err = redisCli.GetRedis().Set(context.Background(), redis_key.GetPrefixGroupMicUser(micUser.GroupUuid, micUser.I), micUserStr, micExpire).Result(); err != nil {
		return myerr.WrapErr(err)
	} else {
		redisCli.GetRedis().Expire(context.Background(), redis_key.GetPrefixGroupUserInMic(externalId), micExpire)
	}

	MicChangeRPush(micUser.model, micUser.GroupUuid, micUser.I)

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(micUser.model, micUser.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicSpeechOpenSignal,
		Source: externalId,
	}, false)

	return nil

}

//禁麦, 管理人 同 自己能禁麦（特别注意：产品说，无论是否式管理人开启禁麦，自己同管理人都能关闭禁麦）
//规则：1：自己禁麦 2：管理人禁麦
func (micUser *MicUser) SpeechClose(userId uint64, externalId, lang string) error {
	if micUser == nil {
		return bizerr.GroupMicNoUser
	} else {
		//自己
		if micUser.ExternalId == externalId {
			micUser.Forbid = true
		} else if flag, err := user_m.IsSuperManager(micUser.model, micUser.UserId); err != nil {
			return err
		} else if flag {
			//不能让超级管理人移除
			return bizerr.OfficialStaffLimit
		} else if flag, err := user_m.IsSuperManagerV2(micUser.model, userId, micUser.UserId); err != nil {
			return err
		} else if flag {
			//超级管理人，无敌状态
			micUser.Forbid = true
		} else {
			//检查是不是管理人
			if err := CheckPermission(micUser.model, micUser.GroupUuid, userId); err != nil {
				return err
			}
			//检查是否是贵族
			if flag, err := noble_m.CheckNobleLevel(micUser.model.Db, micUser.UserId, 5); err != nil {
				return err
			} else if flag {
				return myerr.WrapErr(res_m.GetErrByLanguage(micUser.model.Db, common.MSG_ID_BAN_MIC_NOBLE_5, lang, bizerr.NobleNoMicSpeechCloseOverLevel5))
				//return bizerr.NobleNoMicSpeechCloseLevel5
			}
			micUser.Forbid = true
		}
	}
	//设置值到redis
	micUserStr, err := micUserToStr(*micUser)
	if err != nil {
		return err
	}
	if _, err := redisCli.GetRedis().Set(context.Background(), redis_key.GetPrefixGroupMicUser(micUser.GroupUuid, micUser.I), micUserStr, micExpire).Result(); err != nil {
		return myerr.WrapErr(err)
	} else {
		redisCli.GetRedis().Expire(context.Background(), redis_key.GetPrefixGroupUserInMic(externalId), micExpire)
	}

	MicChangeRPush(micUser.model, micUser.GroupUuid, micUser.I)

	// 发信令，让前端重新拉取，接受容错，
	sendSignalMsg(micUser.model, micUser.GroupUuid, GroupSystemMsg{
		MsgId:  group_e.GroupMicSpeechCloseSignal,
		Source: externalId,
	}, false)

	return nil
}

//群发消息
func (micUser *MicUser) ImMass(externalId string) error {
	if micUser == nil || micUser.ExternalId != externalId {
		return bizerr.GroupMicNoYou
	}
	//检查权限
	if err := CheckPermission(micUser.model, micUser.GroupUuid, micUser.UserId); err != nil {
		return err
	}
	return nil
}

//检查权限,管理人权限, 不过不拥有管理人权限，则抛出错误
func MgrPermission(model *domain.Model, groupUuid string, userId1 uint64, userId2 uint64) error {
	if flag, err := IsRoleGreater(model, groupUuid, userId1, userId2); err != nil {
		return err
	} else {
		if flag == false {
			return bizerr.GroupMicNoPermission
		}
	}
	return nil
}

//检查权限
func CheckPermission(model *domain.Model, groupUuid string, userId uint64) error {
	role, err := GetRoleInGroup(model, userId, groupUuid)
	if err != nil {
		return err
	}
	if role == group_e.GROUP_VISITOR || role == group_e.GROUP_MEMBER {
		return bizerr.NoPrivileges
	}
	return nil
}

// 入参是内部使用的imGroupId，先进行转化
func sendSignalMsg(model *domain.Model, groupId string, msg GroupSystemMsg, isSyn bool) {
	groupId, err := ToTxGroupId(model, groupId)
	if err != nil {
		return
	}

	if isSyn {
		sendSignalMsgOnly(groupId, msg)
	} else {
		go func() {
			defer func() {
				if r := recover(); r != nil {
					//打印错误堆栈信息
					mylogrus.MyLog.Errorf("sendSignalMsg SYSTEM ACTION PANIC: %v, stack: %v", r, string(debug.Stack()))
				}
			}()
			sendSignalMsgOnly(groupId, msg)
		}()
	}
}

//发送tengxunyun的系统消息
func sendSignalMsgOnly(groupId string, msg GroupSystemMsg) {
	buffer, err := json.Marshal(msg)
	if err == nil {
		if err = tencentyun.SendSystemMsg(mylogrus.MyLog.WithField("msgId", msg.MsgId), groupId, []string{}, string(buffer)); err != nil {
			mylogrus.MyLog.Warnf("SendSystemMsg failed for %s, msgId = %d", groupId, msg.MsgId)
		}
	} else {
		mylogrus.MyLog.Errorf("Marshall failure, msgId = %d : %s", msg.MsgId, err.Error())
	}
}

//清理所有麦上的人，强制清理，没有抛出错误，用户接到封禁信令之后，退出麦（必须，用于容错redis清理错误），退出房间
func ClearMic(groupId string) {
	//清理10个,麦位从5个变成10 20211025， 改成20 20210628
	for i := 1; i <= MaxMicNum; i++ {
		//
		micUserStr, err := redisCli.GetRedis().Get(context.Background(), redis_key.GetPrefixGroupMicUser(groupId, i)).Result()
		if err != nil {
			if err == redis2.Nil {
				mylogrus.MyLog.Infof("clearMic noUser groupId:%v, i:%v", groupId, i)
			} else {
				mylogrus.MyLog.Errorf("clearMic err groupId:%v, i:%v, err:%v", groupId, i, err)
				continue
			}
		} else {
			var micUser MicUser
			if err = json.Unmarshal([]byte(micUserStr), &micUser); err != nil {
				mylogrus.MyLog.Errorf("clearMic groupId:%v, i:%v, err:%v", groupId, i, err)
				continue
			}
			//删除
			n, err := redisCli.GetRedis().Del(context.Background(), redis_key.GetPrefixGroupMicUser(groupId, i), redis_key.GetPrefixGroupUserInMic(micUser.ExternalId)).Result()
			mylogrus.MyLog.Infof("clearMic del groupId:%v, i:%v, result:%v, err:%v", groupId, i, n, err)

			//增加到队列中
			MicEmptyRPush(domain.CreateModelNil(), groupId, i)
		}
	}
}

//检查改群组是否麦上有人. true:存在。
func CheckGroupMicHasUser(groupId string) (bool, error) {
	//麦位从5个变成10， 20211025
	keys := make([]string, 0, 10)
	for i := 1; i <= MaxMicNum; i++ {
		keys = append(keys, redis_key.GetPrefixGroupMicUser(groupId, i))
		/*		n, err := redisCli.GetRedis().Exists(context.Background(), redis.GetPrefixGroupMicUser(groupId, i)).Result()
				if err != nil {
					return false, myerr.WrapErr(err)
				}
				if n > 0 {
					return true, nil
				}*/
	}
	//
	if n, err := redisCli.GetRedis().Exists(context.Background(), keys...).Result(); err != nil {
		return false, myerr.WrapErr(err)
	} else {
		if n > 0 {
			return true, nil
		} else {
			return false, nil
		}
	}
}

//麦上进入了人，不是核心业务，为了辅助过滤。
func groupMicHasIn(model *domain.Model, groupId string, userId mysql.ID) {
	model.Log.Infof("groupMicHasIn groupId:%v", groupId)
	if n, err := redisCli.GetRedis().SAdd(context.Background(), redis_key.GetPrefixGroupMicHasIn(), groupId).Result(); err != nil {
		model.Log.Errorf("groupMicHasIn groupId:%v err:%v", groupId, err)
	} else {
		println(n)
	}
	if _, err := redisCli.GetRedis().ZAdd(context.Background(), redis_key.GetPrefixGroupMicHasInUserTime(), &redis2.Z{
		Score:  float64(time.Now().Unix()),
		Member: getMemberStr(groupId, userId),
	}).Result(); err != nil {
		model.Log.Errorf("groupMicHasIn redis:GetPrefixGroupMicHasInTime groupId:%v err:%v", groupId, err)
	}
}

const micHasInScript = "local flag = redis.call('EXISTS', '{key1}', '{key2}', '{key3}', '{key4}', '{key5}', '{key6}', '{key7}', '{key8}', '{key9}', '{key10}', '{key11}', '{key12}', '{key13}', '{key14}', '{key15}', '{key16}', '{key17}', '{key18}', '{key19}', '{key20}') if flag == 0 then redis.call('Srem', '{key}', '{remKey}') end return flag "

//获取麦上有人的群组
func GetMicHasInGroups() ([]string, error) {
	//清理lua缓存
	//redisCli.GetRedis().ScriptFlush(context.Background())
	//获取所有可能存在的人
	groupUuids, err := redisCli.GetRedis().SMembers(context.Background(), redis_key.GetPrefixGroupMicHasIn()).Result()
	if err != nil {
		return nil, myerr.WrapErr(err)
	}
	//
	resultGroupUuids := make([]string, 0, len(groupUuids))
	//循环lua判断是否, 最后的保证，（猜想：真正麦上有人的群没有很多）
	for n, r := range groupUuids {
		s := strings.Replace(micHasInScript, "{key}", redis_key.GetPrefixGroupMicHasIn(), -1)
		s = strings.Replace(s, "{remKey}", r, -1)
		for i := 1; i <= MaxMicNum; i++ {
			s = strings.Replace(s, "{key"+strconv.Itoa(i)+"}", redis_key.GetPrefixGroupMicUser(r, i), -1)
		}
		r, err := redis2.NewScript(s).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
		if err != nil {
			return nil, myerr.WrapErr(err)
		}
		d := r.(int64)
		if d > 0 {
			resultGroupUuids = append(resultGroupUuids, groupUuids[n])
		}
	}
	return resultGroupUuids, nil
}

type micGroupNumKeyS struct{}

// mic位数量缓存
var micGroupNumKey = micGroupNumKeyS{}
var micGroupNumCache = gcache.New(10000).LRU().Build()

// 获取麦上有人的群组&&麦上的人数
// 带lru缓存,1min
func GetMicHasInGroupNum(model *domain.Model) (map[string]int64, error) {
	// get from cache
	if data, err := micGroupNumCache.Get(micGroupNumKey); err == nil {
		model.Log.Infof("GetMicHasInGroupNum cache hit:%v", data)
		// 正服才缓存
		if config.AppIsRelease() {
			return data.(map[string]int64), nil
		}
	}
	//清理lua缓存
	//redisCli.GetRedis().ScriptFlush(context.Background())
	//获取所有可能存在的人
	groupUuids, err := redisCli.GetRedis().SMembers(context.Background(), redis_key.GetPrefixGroupMicHasIn()).Result()
	if err != nil {
		return nil, myerr.WrapErr(err)
	}
	//
	resultGroupUuids := make(map[string]int64, len(groupUuids))
	//循环lua判断是否, 最后的保证，（猜想：真正麦上有人的群没有很多）
	for n, r := range groupUuids {
		s := strings.Replace(micHasInScript, "{key}", redis_key.GetPrefixGroupMicHasIn(), -1)
		s = strings.Replace(s, "{remKey}", r, -1)
		for i := 1; i <= MaxMicNum; i++ {
			s = strings.Replace(s, "{key"+strconv.Itoa(i)+"}", redis_key.GetPrefixGroupMicUser(r, i), -1)
		}
		//r, err := redis2.NewScript(s).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
		sha1, err := model.Redis.ScriptLoad(model, s).Result()
		if err != nil {
			return nil, myerr.WrapErr(err)
		}
		micNum, err := model.Redis.EvalSha(model, sha1, nil, nil).Int64()
		if err != nil {
			return nil, myerr.WrapErr(err)
		}
		//d := r.(int64)
		if micNum > 0 {
			resultGroupUuids[groupUuids[n]] = micNum
		}
	}
	// cache 1min
	_ = micGroupNumCache.SetWithExpire(micGroupNumKey, resultGroupUuids, time.Minute)
	model.Log.Infof("GetMicHasInGroupNum cache miss:%v", resultGroupUuids)
	return resultGroupUuids, nil
}

//获取麦上有人的群组&&麦上的数(有时间性,目前是24小时)
func GetMicHasInPeriodGroupUser() (map[string][]uint64, error) {
	//清理超过12小时的
	if _, err := redisCli.GetRedis().ZRemRangeByScore(context.Background(), redis_key.GetPrefixGroupMicHasInUserTime(), "0", strconv.FormatUint(uint64(time.Now().Unix()-24*60*60), 10)).Result(); err != nil {
		return nil, myerr.WrapErr(err)
	}
	groupUserIdstrs, err := redisCli.GetRedis().ZRange(context.Background(), redis_key.GetPrefixGroupMicHasInUserTime(), 0, -1).Result()
	if err != nil {
		return nil, myerr.WrapErr(err)
	}
	result := map[string][]uint64{}
	for i, _ := range groupUserIdstrs {
		tempGroupUid, tempUserId := analysisMemberStr(groupUserIdstrs[i])
		if _, flag := result[tempGroupUid]; flag {
			result[tempGroupUid] = append(result[tempGroupUid], tempUserId)
		} else {
			result[tempGroupUid] = []uint64{tempUserId}
		}
	}
	return result, nil
}

//获取麦上有人的群组
func GetMicUserNum(groupUuid string) (uint64, error) {
	//清理lua缓存
	//redisCli.GetRedis().ScriptFlush(context.Background())
	//循环lua判断是否
	s := strings.Replace(micHasInScript, "{key}", redis_key.GetPrefixGroupMicHasIn(), -1)
	s = strings.Replace(s, "{remKey}", groupUuid, -1)
	for i := 1; i <= MaxMicNum; i++ {
		s = strings.Replace(s, "{key"+strconv.Itoa(i)+"}", redis_key.GetPrefixGroupMicUser(groupUuid, i), -1)
	}
	r, err := redis2.NewScript(s).Run(context.Background(), redisCli.GetRedis(), []string{}).Result()
	if err != nil {
		return 0, myerr.WrapErr(err)
	}
	d := r.(uint64)
	return d, nil
}

func GetMicNum(micNumType group_e.GroupMicNumType) int {
	var micNum int = 0
	if micNumType == group_e.OneMicNumType {
		micNum = 1
	} else if micNumType == group_e.TwoMicNumType {
		micNum = 2
	} else if micNumType == group_e.ThreeMicNumType {
		micNum = 3
	} else if micNumType == group_e.FourMicNumType {
		micNum = 4
	} else if micNumType == group_e.FiveMicNumType {
		micNum = 5
	} else if micNumType == group_e.SixMicNumType {
		micNum = 6
	} else if micNumType == group_e.SevenMicNumType {
		micNum = 7
	} else if micNumType == group_e.EightMicNumType {
		micNum = 8
	} else if micNumType == group_e.NineMicNumType {
		micNum = 9
	} else if micNumType == group_e.TenMicNumType {
		micNum = 10
	} else if micNumType == group_e.ElevenMicNumType {
		micNum = 11
	} else if micNumType == group_e.TwelveMicNumType {
		micNum = 12
	} else if micNumType == group_e.ThirteenMicNumType {
		micNum = 13
	} else if micNumType == group_e.FourteenMicNumType {
		micNum = 14
	} else if micNumType == group_e.FifteenMicNumType {
		micNum = 15
	} else if micNumType == group_e.SixteenMicNumType {
		micNum = 16
	} else if micNumType == group_e.SeventeenMicNumType {
		micNum = 17
	} else if micNumType == group_e.EighteenMicNumType {
		micNum = 18
	} else if micNumType == group_e.NineteenMicNumType {
		micNum = 19
	} else if micNumType == group_e.TwentyMicNumType {
		micNum = 20
	}
	return micNum
}

func init() {
	//初始化翻译
	{
		inviteMicMsgTranslate["zh"] = "{nick} 邀请你上麦"
		inviteMicMsgTranslate["en"] = "{nick} invite you to take mic"
		inviteMicMsgTranslate["ar"] = "يدعوك٪ {nick} إلى أخذ الميكروفون"
		inviteMicMsgTranslate["tr"] = "{nick}, sizi mikrofonda konuşmaya davet ediyor"
		inviteMicMsgTranslate["id"] = "{nick} mengundangmu menggunakan mic"
		inviteMicMsgTranslate["ru"] = "{nick} пригласить тебя появиться у микрофона."
		inviteMicMsgTranslate["ko"] = "{nick} 당신에게 마이크 요청합니다"
		inviteMicMsgTranslate["pt"] = "{nick} convida você para pegar o mic"
		inviteMicMsgTranslate["th"] = "{nick}เชิญคุณเข้าร่วมไมค์"
		inviteMicMsgTranslate["ca"] = "{nick} te invito al micrófono"
		inviteMicMsgTranslate["hi"] = "{nick} ने आपको माइक लेने के लिए आमंत्रित करता है"
		inviteMicMsgTranslate["vi"] = "{nick} mời bạn lên Micrô"
		inviteMicMsgTranslate["ur"] = "{nick} کیطرف سے آپ کو مائیک کی دعوت دی گئی ہے"
	}
}