package im

import "gitee.com/h79/goutils/common/stringutil"

type EventType int32

func (m EventType) Int() int32 {
	return int32(m)
}

func IsClientEvent(ev int32) bool {
	return ev >= ETClientBegin.Int() && ev <= ETClientEnd.Int()
}

func IsServerEvent(ev int32) bool {
	return ev >= ETServerBegin.Int() && ev <= ETServerEnd.Int()
}

func IsExServerEvent(ev int32) bool {
	return ev >= ETExServerBegin.Int() && ev <= ETExServerEnd.Int()
}

func IsUserStatusChanged(ev int32) bool {
	return ev == ETClientUserStatusChanged.Int()
}

func IsMQEvent(ev int32) bool {
	if IsClientEvent(ev) {
		return ev == ETMq.Int()
	}
	if IsServerEvent(ev) {
		return ev-ETServerBegin.Int() == ETMq.Int()
	}
	if IsExServerEvent(ev) {
		return ev-ETExServerBegin.Int() == ETMq.Int()
	}
	return false
}

func IsEventType(ev int32) int32 {
	if IsServerEvent(ev) {
		return ev - ETServerBegin.Int()
	} else if IsExServerEvent(ev) {
		return ev - ETExServerBegin.Int()
	}
	return ev
}

const (
	ETException = EventType(1)

	ETClientPing    = EventType(2)
	ETClientPingRsp = EventType(3)

	// ETClientBegin 客户端开始
	ETClientBegin        = EventType(10)
	ETClientHeartBeat    = EventType(10)
	ETClientHeartBeatRsp = EventType(11)

	// ETClientLogin 登录
	ETClientLogin    = EventType(100)
	ETClientLoginRsp = EventType(101)

	ETClientLogout    = EventType(102)
	ETClientLogoutRsp = EventType(103)

	// ETClientUserStatusChanged 用户状态发生变化
	ETClientUserStatusChanged    = EventType(104)
	ETClientUserStatusChangedRsp = EventType(105)

	ETClientUserList    = EventType(106)
	ETClientUserListRsp = EventType(107)

	// ETClientKicked 多端使用，被踢
	ETClientKicked    = EventType(108)
	ETClientKickedRsp = EventType(109)

	// ETMessage 消息事件
	ETMessage    = EventType(200)
	ETMessageRsp = EventType(201)

	ETNotify    = EventType(202)
	ETNotifyRsp = EventType(203)

	// ETChat 聊天事件
	ETChat    = EventType(204)
	ETChatRsp = EventType(205)

	// ETMq 简单的mq
	ETMq    = EventType(206)
	ETMqRsp = EventType(207)

	// ETBody 简单的消息
	ETBody    = EventType(208)
	ETBodyRsp = EventType(209)

	// ETClientEnd 客户端结束
	ETClientEnd = EventType(4999)

	// ETServerBegin 服务之间
	ETServerBegin = EventType(5000)

	ETServerEnd = EventType(10000)

	// ETExServerBegin 外部服务
	ETExServerBegin = EventType(20000)

	ETExServerEnd = EventType(30000)
)

var em = map[int32]string{
	ETException.Int(): "exception",

	ETClientPing.Int():    "ping",
	ETClientPingRsp.Int(): "pingRsp",

	// ETClientBegin 客户端开始
	ETClientHeartBeat.Int():    "heart",
	ETClientHeartBeatRsp.Int(): "heartRsp",

	// ETClientLogin 登录
	ETClientLogin.Int():    "login",
	ETClientLoginRsp.Int(): "loginRsp",

	ETClientLogout.Int():    "logout",
	ETClientLogoutRsp.Int(): "logoutRsp",

	// ETClientUserStatusChanged 用户状态发生变化
	ETClientUserStatusChanged.Int():    "userStatusChanged",
	ETClientUserStatusChangedRsp.Int(): "userStatusChangeRsp",

	ETClientUserList.Int():    "userList",
	ETClientUserListRsp.Int(): "userListRsp",

	// ETClientKicked 多端使用，被踢
	ETClientKicked.Int(): "kicked",

	// ETMessage 消息事件
	ETMessage.Int():    "message",
	ETMessageRsp.Int(): "messageRsp",

	ETNotify.Int():    "notify",
	ETNotifyRsp.Int(): "notifyRsp",

	// ETChat 聊天事件
	ETChat.Int():    "chat",
	ETChatRsp.Int(): "chatRsp",

	ETMq.Int():    "mq",
	ETMqRsp.Int(): "mqRsp",

	ETBody.Int():    "body",
	ETBodyRsp.Int(): "bodyRsp",
}

func StringEvent(e int32) string {
	prefix := ""
	ee := e
	// ETServerBegin 服务之间
	if e >= ETServerBegin.Int() && e <= ETServerEnd.Int() {
		ee -= ETServerBegin.Int()
		prefix = "im:server:"
	}
	// ETExServerBegin 外部服务
	if e >= ETExServerBegin.Int() && e <= ETExServerEnd.Int() {
		ee -= ETExServerBegin.Int()
		prefix = "ex:server:"
	}
	if v, ok := em[e]; ok {
		return prefix + v
	}
	return stringutil.Int32ToString(e)
}