snengame/internal/coordinator/server.go

55 lines
1.1 KiB
Go
Raw Normal View History

2021-07-22 18:19:21 -04:00
package coordinator
2021-07-22 15:37:25 -04:00
import (
"log"
"net/http"
"github.com/gorilla/websocket"
)
var upgrader = websocket.Upgrader{} // use default options
2021-07-22 18:19:21 -04:00
func Serve(c *Coordinator) {
2021-07-22 15:37:25 -04:00
http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
2021-07-22 18:19:21 -04:00
serveWs(c, w, r)
2021-07-22 15:37:25 -04:00
})
err := http.ListenAndServe(":7636", nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
}
2021-07-22 18:19:21 -04:00
func serveWs(c *Coordinator, w http.ResponseWriter, r *http.Request) {
2021-07-22 15:37:25 -04:00
// Upgrade our raw HTTP connection to a websocket based one
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Print("Error during connection upgradation:", err)
return
}
defer conn.Close()
// The event loop
for {
2021-07-22 18:19:21 -04:00
var cmd SessionCommand
2021-07-22 15:37:25 -04:00
err := conn.ReadJSON(&cmd)
if err != nil {
log.Println("Error during message reading:", err)
break
}
log.Printf("Received: %s", cmd)
2021-07-22 18:19:21 -04:00
resp := c.Coordinate(&cmd)
if err != nil {
panic(err)
}
log.Printf("sending: %v", resp)
2021-07-22 15:37:25 -04:00
err = conn.WriteJSON(resp)
if err != nil {
log.Println("Error during message writing:", err)
break
}
2021-07-22 18:19:21 -04:00
if resp.Result == SessionRespLeft {
break
}
2021-07-22 15:37:25 -04:00
}
}