78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
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package socket
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import (
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"fmt"
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"net/http"
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"github.com/gorilla/websocket"
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)
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type WebsocketInterface struct {
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Writer http.ResponseWriter
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Request *http.Request
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OnConnect func(who *websocket.Conn)
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OnMessage func(who *websocket.Conn, msg string)
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OnDisconnect func(who *websocket.Conn)
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}
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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}
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//DisplaySocket handles all socket calls from the display machine
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func DisplaySocket(w http.ResponseWriter, r *http.Request) {
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socketUpgrader(WebsocketInterface{
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Writer: w,
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Request: r,
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OnConnect: onNewDisplay,
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OnMessage: onDisplayMessage,
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OnDisconnect: onDisplayDisconnect,
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})
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}
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//KioskSocket handles all socket calls from the user-facing machine
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func KioskSocket(w http.ResponseWriter, r *http.Request) {
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socketUpgrader(WebsocketInterface{
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Writer: w,
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Request: r,
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OnConnect: onNewKiosk,
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OnMessage: onKioskMessage,
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OnDisconnect: onKioskDisconnect,
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})
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}
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//Staffsocket handles all socket calls from the connToTable machines
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func StaffSocket(w http.ResponseWriter, r *http.Request) {
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socketUpgrader(WebsocketInterface{
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Writer: w,
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Request: r,
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OnConnect: onNewStaff,
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OnMessage: onStaffMessage,
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OnDisconnect: onStaffDisconnect,
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})
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}
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func socketUpgrader(conn WebsocketInterface) {
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ws, err := upgrader.Upgrade(conn.Writer, conn.Request, nil)
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if err != nil {
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fmt.Fprint(conn.Writer, "You must use the socket protocol", err)
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return
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}
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defer ws.Close()
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conn.OnConnect(ws)
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for {
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_, p, err := ws.ReadMessage()
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if err != nil {
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conn.OnDisconnect(ws)
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break
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}
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msg := string(p)
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conn.OnMessage(ws, msg)
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}
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}
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