package comm

import (
	"context"
	"fmt"
	"go_dreamfactory/pb"
	"sync"

	"go_dreamfactory/lego/sys/log"

	"google.golang.org/protobuf/proto"
	"google.golang.org/protobuf/types/known/anypb"
)

/*
用户会话对象 跨服操作用户的对象
*/

func NewUserSessionByPools(service IService) IUserSession {
	return &UserSession{
		msgqueue: make([]*pb.UserMessage, 0),
		mate:     make(map[string]interface{}),
		service:  service,
	}
}

type UserSession struct {
	IP               string
	SessionId        string
	ServiceTag       string
	GatewayServiceId string //用户所在网关服务
	UserId           string
	Group            int32 //用户分组
	Online           bool
	service          IService
	msgqueue         []*pb.UserMessage
	lock             sync.RWMutex
	mate             map[string]interface{}
}

// 重置
func (this *UserSession) SetSession(ip, sessionId, stag, sid, uid string, group int32) {
	this.IP = ip
	this.SessionId = sessionId
	this.ServiceTag = stag
	this.GatewayServiceId = sid
	this.UserId = uid
	this.Group = group
	this.msgqueue = this.msgqueue[:0]
	this.mate = make(map[string]interface{})
	if sessionId != "" {
		this.Online = true
	}
}

// 重置
func (this *UserSession) Reset() {
	this.IP = ""
	this.SessionId = ""
	this.GatewayServiceId = ""
	this.UserId = ""
	this.Online = false
	this.msgqueue = this.msgqueue[:0]
	this.mate = make(map[string]interface{})
}

// 获取用户的会话id
func (this *UserSession) GetSessionId() string {
	return this.SessionId
}

// 获取用户的uid
func (this *UserSession) GetUserId() string {
	return this.UserId
}

//用户分组
func (this *UserSession) GetGroup() int32 {
	return this.Group
}

// 获取用户的远程ip地址
func (this *UserSession) GetIP() string {
	return this.IP
}

// 会话所在集群
func (this *UserSession) GetServiecTag() string {
	return this.ServiceTag
}

// 用户当先所在网关服务
func (this *UserSession) GetGatewayServiceId() string {
	return this.GatewayServiceId
}

// 是否登录
func (this *UserSession) IsLogin() bool {
	return this.UserId != ""
}

func (this *UserSession) IsOnline() bool {
	return this.Online
}

// /绑定uid 登录后操作
// /uid 用户id
// /wokerId 用户绑定worker服务id
func (this *UserSession) Bind(uid string, wokerId string) (err error) {
	reply := &pb.RPCMessageReply{}
	if err = this.service.RpcCall(context.Background(), fmt.Sprintf("%s/%s", Service_Gateway, this.GatewayServiceId), string(Rpc_GatewayAgentBind), &pb.AgentBuildReq{
		UserSessionId: this.SessionId,
		UserId:        uid,
		WorkerId:      wokerId,
	}, reply); err != nil {
		log.Errorf("Bind UserSession:%s UserId:%s err:%v", this.SessionId, this.UserId, err)
		return
	}
	this.UserId = uid
	return
}

// 解绑uid 注销和切换账号是处理
func (this *UserSession) UnBind() (err error) {
	reply := &pb.RPCMessageReply{}
	if err = this.service.RpcCall(context.Background(), fmt.Sprintf("%s/%s", Service_Gateway, this.GatewayServiceId), string(Rpc_GatewayAgentUnBind), &pb.AgentUnBuildReq{
		UserSessionId: this.SessionId,
	}, reply); err != nil {
		log.Errorf("UnBuild UserSession:%s UserId:%s err:%v", this.SessionId, this.UserId, err)
		return
	}
	this.UserId = ""
	return
}

//写入元数据
func (this *UserSession) SetMate(name string, value interface{}) {
	this.lock.Lock()
	this.mate[name] = value
	this.lock.Unlock()
}

//写入元数据
func (this *UserSession) GetMate(name string) (ok bool, value interface{}) {
	this.lock.RLock()
	value, ok = this.mate[name]
	this.lock.RUnlock()
	return
}

// 向用户发送消息
func (this *UserSession) SendMsg(mainType, subType string, msg proto.Message) (err error) {
	// log.Debugf("SendMsg to UserId:[%s] Data: %v", this.UserId, msg)
	data, _ := anypb.New(msg)
	this.msgqueue = append(this.msgqueue, &pb.UserMessage{
		MainType: mainType,
		SubType:  subType,
		Data:     data,
	})
	return
}

// 关闭用户连接对象
func (this *UserSession) Close() (err error) {
	reply := &pb.RPCMessageReply{}
	if err = this.service.RpcCall(context.Background(), fmt.Sprintf("%s/%s", Service_Gateway, this.GatewayServiceId), string(Rpc_GatewayAgentClose), &pb.AgentCloseeReq{
		UserSessionId: this.SessionId,
	}, reply); err != nil {
		log.Errorf("Close UserSession:%s UserId:%s err:%v", this.SessionId, this.UserId, err)
	}
	return
}

// 清空消息队列
func (this *UserSession) Polls() []*pb.UserMessage {
	msgs := this.msgqueue
	this.msgqueue = this.msgqueue[:0]
	return msgs
}

// 推送消息到用户
func (this *UserSession) Push() (err error) {
	// reply := &pb.RPCMessageReply{}
	if len(this.msgqueue) > 0 {
		if _, err = this.service.AcrossClusterRpcGo(context.Background(), this.ServiceTag, fmt.Sprintf("%s/%s", Service_Gateway, this.GatewayServiceId), string(Rpc_GatewayAgentSendMsg), &pb.AgentSendMessageReq{
			UserSessionId: this.SessionId,
			Reply:         this.msgqueue,
		}, nil); err != nil {
			log.Errorf("Push:%v err:%s", this, err.Error())
		}
	}
	this.msgqueue = this.msgqueue[:0]
	return
}

func (this *UserSession) SyncPush() (err error) {
	// reply := &pb.RPCMessageReply{}
	if len(this.msgqueue) > 0 {
		if err = this.service.AcrossClusterRpcCall(context.Background(), this.ServiceTag, fmt.Sprintf("%s/%s", Service_Gateway, this.GatewayServiceId), string(Rpc_GatewayAgentSendMsg), &pb.AgentSendMessageReq{
			UserSessionId: this.SessionId,
			Reply:         this.msgqueue,
		}, &pb.RPCMessageReply{}); err != nil {
			log.Errorf("SendMsgToUsers:%v err:%v", this, err)
		}
	}
	this.msgqueue = this.msgqueue[:0]
	return
}

// 克隆
func (this *UserSession) Clone() (session IUserSession) {
	session = this.service.GetUserSession()
	session.SetSession(this.IP, this.SessionId, this.ServiceTag, this.GatewayServiceId, this.UserId, this.Group)
	this.lock.RLock()
	for k, v := range this.mate {
		session.SetMate(k, v)
	}
	this.lock.RUnlock()
	return
}

// 打印日志需要
func (this *UserSession) ToString() string {
	return fmt.Sprintf("SessionId:%s UserId:%s GatewayServiceId:%s", this.SessionId, this.UserId, this.GatewayServiceId)
}