cheesy-arena-lite/web/audience_display.go

// Copyright 2014 Team 254. All Rights Reserved.
// Author: pat@patfairbank.com (Patrick Fairbank)
//
// Web handlers for audience screen display.

package web

import (
	"github.com/Team254/cheesy-arena-lite/game"
	"github.com/Team254/cheesy-arena-lite/model"
	"github.com/Team254/cheesy-arena-lite/websocket"
	"net/http"
)

// Renders the audience display to be chroma keyed over the video feed.
func (web *Web) audienceDisplayHandler(w http.ResponseWriter, r *http.Request) {
	if !web.enforceDisplayConfiguration(w, r, map[string]string{"background": "#0f0", "reversed": "false",
		"overlayLocation": "bottom"}) {
		return
	}

	template, err := web.parseFiles("templates/audience_display.html")
	if err != nil {
		handleWebErr(w, err)
		return
	}

	data := struct {
		*model.EventSettings
		MatchSounds []*game.MatchSound
	}{web.arena.EventSettings, game.MatchSounds}
	err = template.ExecuteTemplate(w, "audience_display.html", data)
	if err != nil {
		handleWebErr(w, err)
		return
	}
}

// The websocket endpoint for the audience display client to receive status updates.
func (web *Web) audienceDisplayWebsocketHandler(w http.ResponseWriter, r *http.Request) {
	display, err := web.registerDisplay(r)
	if err != nil {
		handleWebErr(w, err)
		return
	}
	defer web.arena.MarkDisplayDisconnected(display.DisplayConfiguration.Id)

	ws, err := websocket.NewWebsocket(w, r)
	if err != nil {
		handleWebErr(w, err)
		return
	}
	defer ws.Close()

	// Subscribe the websocket to the notifiers whose messages will be passed on to the client.
	ws.HandleNotifiers(display.Notifier, web.arena.MatchTimingNotifier, web.arena.AudienceDisplayModeNotifier,
		web.arena.MatchLoadNotifier, web.arena.MatchTimeNotifier, web.arena.RealtimeScoreNotifier,
		web.arena.PlaySoundNotifier, web.arena.ScorePostedNotifier, web.arena.AllianceSelectionNotifier,
		web.arena.LowerThirdNotifier, web.arena.ReloadDisplaysNotifier)
}