feat: optional per-room JetStream persistence (history + offline replay), gated by RoomPolicy.Persist

playground/server.go

@@ -34,8 +34,6 @@ import (
 
 	_ "embed"
 
-	"github.com/nats-io/nats.go"
-
 	"github.com/enmanuel/unibus/pkg/blobstore"
 	"github.com/enmanuel/unibus/pkg/client"
 	"github.com/enmanuel/unibus/pkg/embeddednats"
@@ -86,9 +84,9 @@ type peerState struct {
 	endpoint client.Endpoint
 
 	mu        sync.Mutex
-	subs      map[string]*nats.Subscription // roomID -> subscription
-	rooms     map[string]roomInfo           // roomID -> subject/encrypt
-	listeners map[chan Event]struct{}       // attached SSE channels
+	subs      map[string]*client.Sub  // roomID -> subscription
+	rooms     map[string]roomInfo     // roomID -> subject/encrypt
+	listeners map[chan Event]struct{} // attached SSE channels
 }
 
 // emit fans an event out to all attached listeners without blocking on a slow
@@ -155,7 +153,7 @@ func (h *Hub) getOrCreate(name string) (*peerState, error) {
 		name:      name,
 		client:    c,
 		endpoint:  c.Endpoint(),
-		subs:      map[string]*nats.Subscription{},
+		subs:      map[string]*client.Sub{},
 		rooms:     map[string]roomInfo{},
 		listeners: map[chan Event]struct{}{},
 	}
@@ -311,6 +309,7 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
 		Peer    string `json:"peer"`
 		Subject string `json:"subject"`
 		Encrypt bool   `json:"encrypt"`
+		Persist bool   `json:"persist"`
 	}
 	if err := decodeBody(r, &req); err != nil || req.Peer == "" || req.Subject == "" {
 		writeErr(w, http.StatusBadRequest, "peer and subject required")
@@ -321,10 +320,10 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
 		writeErr(w, http.StatusBadRequest, "unknown peer "+req.Peer)
 		return
 	}
-	policy := room.ModeNATS
-	if req.Encrypt {
-		policy = room.ModeMatrix
-	}
+	// The two checkboxes map to an explicit per-room policy. encrypt drives both
+	// encryption and per-message signing; persist (default false) independently
+	// toggles durable JetStream history. persist=false keeps plain ephemeral NATS.
+	policy := room.Policy{Encrypt: req.Encrypt, Persist: req.Persist, SignMsgs: req.Encrypt}
 	roomID, err := p.client.CreateRoom(req.Subject, policy)
 	if err != nil {
 		writeErr(w, http.StatusInternalServerError, err.Error())
@@ -336,7 +335,7 @@ func (h *Hub) handleRoom(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	writeJSON(w, http.StatusOK, map[string]any{
-		"room_id": roomID, "subject": req.Subject, "encrypt": req.Encrypt,
+		"room_id": roomID, "subject": req.Subject, "encrypt": req.Encrypt, "persist": req.Persist,
 	})
 }