/
websocket.go
89 lines (81 loc) · 1.76 KB
/
websocket.go
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package main
import (
"fmt"
"log"
"net/http"
"github.com/gobuffalo/packr/v2"
"github.com/gorilla/websocket"
)
var upgrader = websocket.Upgrader{} // use default options
var clients = make(map[*websocket.Conn]bool)
func echo(w http.ResponseWriter, r *http.Request) {
c, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Print("upgrade:", err)
return
}
defer c.Close()
for {
mt, message, err := c.ReadMessage()
if err != nil {
log.Println("read:", err)
break
}
log.Printf("recv: %s", message)
err = c.WriteMessage(mt, message)
if err != nil {
log.Println("write:", err)
break
}
}
}
func ws(w http.ResponseWriter, r *http.Request) {
c, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Print("upgrade: ", err)
return
}
log.Println("Websocket client connected")
defer c.Close()
clients[c] = true
UpdateScoreBoard(&s)
for {
_, message, err := c.ReadMessage()
if err != nil {
log.Println("read:", err)
break
}
log.Printf("recv: %s", message)
}
}
func UpdateScoreBoard(s *Scoreboard) {
for client := range clients {
err := client.WriteJSON(s)
if err != nil {
log.Printf("Websocket error: %s", err)
client.Close()
delete(clients, client)
}
}
}
func UpdateTimer(function string) {
for client := range clients {
message := []byte(function)
err := client.WriteMessage(websocket.TextMessage, message)
if err != nil {
log.Printf("Websocket error: %s", err)
client.Close()
delete(clients, client)
}
}
}
func StartHTTPServer() {
http.HandleFunc("/ws", ws)
http.HandleFunc("/echo", echo)
box := packr.New("static", "./static")
http.Handle("/", http.FileServer(box))
go func() {
log.Fatal(http.ListenAndServe(":8080", nil))
}()
fmt.Println("Starting HTTP Server @ http://localhost:8080")
}