rename backend to core

core/internal/server/bluez/broker.go

@@ -0,0 +1,21 @@
+package bluez
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+)
+
+type PromptBroker interface {
+	Ask(ctx context.Context, req PromptRequest) (token string, err error)
+	Wait(ctx context.Context, token string) (PromptReply, error)
+	Resolve(token string, reply PromptReply) error
+}
+
+func generateToken() (string, error) {
+	bytes := make([]byte, 16)
+	if _, err := rand.Read(bytes); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(bytes), nil
+}