arcast/pkg/server/apps.go

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package server
import (
"io/fs"
"net/http"
"strings"
"sync"
"github.com/go-chi/chi/v5"
"gitlab.com/wpetit/goweb/api"
_ "embed"
)
type App struct {
ID string `json:"id"`
Title map[string]string `json:"title"`
Description map[string]string `json:"description"`
Icon string `json:"icon"`
FS fs.FS `json:"-"`
Hidden bool `json:"hidden"`
}
func (s *Server) handleDefaultApp(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/apps/"+s.defaultApp+"/", http.StatusTemporaryRedirect)
}
func (s *Server) handleApps(w http.ResponseWriter, r *http.Request) {
api.DataResponse(w, http.StatusOK, struct {
DefaultApp string `json:"defaultApp"`
Apps []App `json:"apps"`
}{
DefaultApp: s.defaultApp,
Apps: s.apps,
})
}
var (
indexedAppFilesystems map[string]fs.FS
indexAppsOnce sync.Once
)
func (s *Server) handleAppFilesystem(w http.ResponseWriter, r *http.Request) {
indexAppsOnce.Do(func() {
indexedAppFilesystems = make(map[string]fs.FS, len(s.apps))
for _, app := range s.apps {
indexedAppFilesystems[app.ID] = app.FS
}
})
appID := chi.URLParam(r, "appID")
fs, exists := indexedAppFilesystems[appID]
if !exists {
http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
return
}
name := strings.TrimPrefix(r.URL.Path, "/apps/"+appID)
http.ServeFileFS(w, r, fs, name)
}