Add web push notifications for new inbox items

internal/server/server.go

@@ -18,12 +18,14 @@ import (
 	"g.fc.run/misc/byre/internal/agents"
 	"g.fc.run/misc/byre/internal/api"
 	"g.fc.run/misc/byre/internal/git"
+	"g.fc.run/misc/byre/internal/push"
 	"g.fc.run/misc/byre/internal/store"
 )
 
 type Server struct {
 	store     *store.Store
 	agents    *agents.Manager
+	notifier  *push.Notifier
 	hub       *hub
 	startedAt time.Time
 	spa       fs.FS
@@ -47,14 +49,21 @@ func New(dataDir string, spa fs.FS) (*Server, error) {
 		users:     map[string]string{},
 	}
 
-	s.store, err = store.Open(filepath.Join(dataDir, "byre.db"), s.hub.publish)
+	s.store, err = store.Open(filepath.Join(dataDir, "byre.db"), s.publish)
 	if err != nil {
 		return nil, err
 	}
 
+	s.notifier, err = push.New(s.store, pushWindow)
+	if err != nil {
+		s.store.Close()
+		return nil, fmt.Errorf("start push notifier: %w", err)
+	}
+
 	s.agents = agents.New(s.store, agents.DefaultLimits, filepath.Join(dataDir, "worktrees"))
 	err = s.agents.Recover(context.Background())
 	if err != nil {
+		s.notifier.Close()
 		s.store.Close()
 		return nil, fmt.Errorf("recover sessions: %w", err)
 	}
@@ -62,13 +71,24 @@ func New(dataDir string, spa fs.FS) (*Server, error) {
 	return s, nil
 }
 
+const pushWindow = 3 * time.Second
+
+func (s *Server) publish(ev api.Event) {
+	s.hub.publish(ev)
+	s.notifier.Observe(ev)
+}
+
 func (s *Server) Close() error {
 	s.agents.Close()
+	s.notifier.Close()
 	return s.store.Close()
 }
 
 func (s *Server) Handler() http.Handler {
 	mux := http.NewServeMux()
+	mux.HandleFunc("GET /sw.js", func(w http.ResponseWriter, r *http.Request) {
+		http.ServeFileFS(w, r, s.spa, "dist/sw.js")
+	})
 	api.HandlerWithOptions(s, api.StdHTTPServerOptions{
 		BaseRouter:  mux,
 		Middlewares: []api.MiddlewareFunc{s.identify},