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room.go
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room.go
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package websocket
import "log"
// RoomHandler room handler datatype
type RoomHandler func(*Action)
// RoomCientLifecycleCallback RoomCientLifecycleCallback datatype
type RoomCientLifecycleCallback func(c *Client)
// Room room datatype
type Room struct {
Route string
clients map[*Client]bool
enterChan chan *Client
leaveChan chan *Client
recvChan chan *Action
broadcastChan chan *Message
quitchan chan bool
handlers map[string]RoomHandler
internalCallbackOnEnter RoomCientLifecycleCallback
internalCallbackOnLeave RoomCientLifecycleCallback
onQuitCallback func(r *Room)
IsRunning bool
}
// NewRoom rom factory
func NewRoom(route string) *Room {
return &Room{
Route: route,
clients: make(map[*Client]bool),
handlers: make(map[string]RoomHandler),
enterChan: make(chan *Client),
leaveChan: make(chan *Client),
recvChan: make(chan *Action),
broadcastChan: make(chan *Message),
quitchan: make(chan bool),
IsRunning: false,
}
}
// Enter enter room
func (r *Room) Enter(c *Client) {
log.Println("Room.Enter", r.Route)
r.enterChan <- c
}
// Leave leaves room
func (r *Room) Leave(c *Client) {
log.Println("Room.Leae", r.Route)
r.leaveChan <- c
}
func (r *Room) handleEnter(c *Client) {
r.clients[c] = true
if r.internalCallbackOnEnter != nil {
r.internalCallbackOnEnter(c)
}
}
func (r *Room) handleLeave(c *Client) {
if _, ok := r.clients[c]; !ok {
return
}
c.Close()
delete(r.clients, c)
if r.internalCallbackOnLeave != nil {
r.internalCallbackOnLeave(c)
}
}
// SetOnEnter sets room onEnter callback
func (r *Room) SetOnEnter(f RoomCientLifecycleCallback) {
r.internalCallbackOnEnter = f
}
// SetOnLeave sets room OnLeave callback
func (r *Room) SetOnLeave(f RoomCientLifecycleCallback) {
r.internalCallbackOnLeave = f
}
// AddHandler adds a handler for the given msg
func (r *Room) AddHandler(message string, f RoomHandler) {
r.handlers[message] = f
}
// Handle handles an incomming action
func (r *Room) Handle(a *Action) {
log.Println("---------> WS MSG ", a.Message.Message, a.Message.Payload)
r.recvChan <- a
}
// Broadcast broadcasts the given message to all room clients
func (r *Room) Broadcast(message string, p *MessagePayload) {
go func() {
if p == nil {
p = &MessagePayload{}
}
msg := NewMessage(message)
msg.Payload = *p
r.broadcastChan <- msg
}()
}
// BroadcastMsg broadcasts the given message to all room clients
func (r *Room) BroadcastMsg(msg *Message) {
go func() {
r.broadcastChan <- msg
}()
}
// ClientsCount returns the number of clients connected
func (r *Room) ClientsCount() int {
return len(r.clients)
}
// Quit quits the room
func (r *Room) Quit() {
close(r.quitchan)
if r.onQuitCallback != nil {
r.onQuitCallback(r)
}
}
// OnQuit sets a callback to be called when the room quits
func (r *Room) OnQuit(f func(r *Room)) {
r.onQuitCallback = f
}
// Run runs room main loop
func (r *Room) Run() {
log.Println("Running WebSockRoom!!: " + r.Route)
r.IsRunning = true
for {
select {
case client := <-r.enterChan:
r.handleEnter(client)
break
case client := <-r.leaveChan:
r.handleLeave(client)
break
case action := <-r.recvChan:
if handler, ok := r.handlers[action.Message.Message]; ok {
handler(action)
}
break
case msg := <-r.broadcastChan:
for client := range r.clients {
client.Send(msg)
}
break
case <-r.quitchan:
r.IsRunning = false
return
}
}
}