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frontend.go
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frontend.go
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package codenames
import (
"math/rand"
"net/http"
"path/filepath"
"strings"
)
const tpl = `
<!DOCTYPE html>
<html>
<head>
<title>Codi secret - Jugar en línia</title>
<script src="/static/app.js?v=0.02" type="text/javascript"></script>
<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
<link rel="stylesheet" type="text/css" href="/static/game.css" />
<link rel="stylesheet" type="text/css" href="/static/lobby.css" />
<link rel="shortcut icon" type="image/png" id="favicon" href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAA8SURBVHgB7dHBDQAgCAPA1oVkBWdzPR84kW4AD0LCg36bXJqUcLL2eVY/EEwDFQBeEfPnqUpkLmigAvABK38Grs5TfaMAAAAASUVORK5CYII="/>
<script type="text/javascript">
{{if .SelectedGameID}}
window.selectedGameID = "{{.SelectedGameID}}";
{{end}}
window.autogeneratedGameID = "{{.AutogeneratedGameID}}";
</script>
</head>
<body>
<div id="app">
</div>
<h1><a href="https://unchat.cat" style="color:black;text-decoration:none;text-transform:none;">unchat.cat</a></h1>
</body>
</html>
`
type templateParameters struct {
SelectedGameID string
AutogeneratedGameID string
}
func (s *Server) handleIndex(rw http.ResponseWriter, req *http.Request) {
dir, id := filepath.Split(req.URL.Path)
if dir != "" && dir != "/" {
http.NotFound(rw, req)
return
}
autogeneratedID := s.getAutogeneratedID()
err := s.tpl.Execute(rw, templateParameters{
SelectedGameID: id,
AutogeneratedGameID: autogeneratedID,
})
if err != nil {
http.Error(rw, "error rendering", http.StatusInternalServerError)
}
}
func (s *Server) getAutogeneratedID() string {
const attemptsPerWordCount = 5
s.mu.Lock()
defer s.mu.Unlock()
var words []string
autogeneratedID := ""
for i := 0; ; i++ {
wordCount := 2 + i/attemptsPerWordCount
words = words[:0]
for j := 0; j < wordCount; j++ {
w := s.gameIDWords[rand.Intn(len(s.gameIDWords))]
words = append(words, w)
}
autogeneratedID = strings.Join(words, "-")
if _, ok := s.games[autogeneratedID]; !ok {
break
}
}
return autogeneratedID
}