Select fabric carrier by endpoint

agents/rap-node-agent/internal/mesh/fabric_transport.go

@@ -3,7 +3,9 @@ package mesh
 import (
 	"context"
 	"crypto/tls"
+	"fmt"
 	"net/http"
+	"strings"
 	"time"
 
 	"github.com/example/remote-access-platform/agents/rap-node-agent/internal/fabricproto"
@@ -25,6 +27,7 @@ type FabricTransport interface {
 type FabricTransportTarget struct {
 	PeerID         string
 	Endpoint       string
+	Transport      string
 	Token          string
 	Header         http.Header
 	TLSConfig      *tls.Config
@@ -35,6 +38,29 @@ type FabricTransportTarget struct {
 	ErrorBuffer    int
 }
 
+func FabricTransportForTarget(target FabricTransportTarget, websocket *WebSocketFabricTransport, quicTransport *QUICFabricTransport) (FabricTransport, FabricTransportTarget, error) {
+	transportLabel := strings.ToLower(strings.TrimSpace(target.Transport))
+	endpoint := strings.TrimSpace(target.Endpoint)
+	if strings.HasPrefix(strings.ToLower(endpoint), "quic://") {
+		transportLabel = "quic"
+		target.Endpoint = strings.TrimPrefix(endpoint, "quic://")
+	}
+	switch transportLabel {
+	case "quic", "direct_quic", "udp_quic", "quic_udp":
+		if quicTransport == nil {
+			quicTransport = NewQUICFabricTransport(nil)
+		}
+		return quicTransport, target, nil
+	case "", "websocket", "ws", "wss", "direct_http", "direct_https", "direct_tcp_tls":
+		if websocket == nil {
+			websocket = NewWebSocketFabricTransport(nil)
+		}
+		return websocket, target, nil
+	default:
+		return nil, target, fmt.Errorf("unsupported fabric transport %q", target.Transport)
+	}
+}
+
 type WebSocketFabricTransport struct {
 	Manager *FabricSessionPeerManager
 }