From e1b0b55bc859cf2d35affbf1deef28bee27235e7 Mon Sep 17 00:00:00 2001
From: Brian Krabach <brkrabac@microsoft.com>
Date: Wed, 1 Apr 2026 11:10:07 -0700
Subject: [PATCH] feat: add federation_enabled to instance-info endpoint

---
 muxplex/main.py           |  7 ++++++-
 muxplex/tests/test_api.py | 22 ++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/muxplex/main.py b/muxplex/main.py
index 0d411df..c3072ff 100644
--- a/muxplex/main.py
+++ b/muxplex/main.py
@@ -558,7 +558,12 @@ async def instance_info() -> dict:
     discover peer names and verify reachability.
     """
     settings = load_settings()
-    return {"name": settings["device_name"], "version": app.version}
+    fed_key = load_federation_key()
+    return {
+        "name": settings["device_name"],
+        "version": app.version,
+        "federation_enabled": bool(fed_key),
+    }
 
 
 # ---------------------------------------------------------------------------
diff --git a/muxplex/tests/test_api.py b/muxplex/tests/test_api.py
index 224ff68..2c42464 100644
--- a/muxplex/tests/test_api.py
+++ b/muxplex/tests/test_api.py
@@ -1029,6 +1029,28 @@ def test_instance_info_no_auth_required(tmp_path, monkeypatch):
     assert "version" in data
 
 
+def test_instance_info_includes_federation_enabled(client, tmp_path, monkeypatch):
+    """GET /api/instance-info includes federation_enabled=False when no key file exists."""
+    import muxplex.settings as settings_mod
+
+    # Redirect settings path so defaults are used
+    monkeypatch.setattr(settings_mod, "SETTINGS_PATH", tmp_path / "settings.json")
+    # Redirect federation key path to a nonexistent file
+    monkeypatch.setattr(
+        settings_mod, "FEDERATION_KEY_PATH", tmp_path / "nonexistent_federation_key"
+    )
+
+    response = client.get("/api/instance-info")
+    assert response.status_code == 200
+    data = response.json()
+    assert "federation_enabled" in data, (
+        f"Response must include 'federation_enabled' key, got: {data}"
+    )
+    assert data["federation_enabled"] is False, (
+        f"federation_enabled must be False when no key file exists, got: {data['federation_enabled']}"
+    )
+
+
 # ---------------------------------------------------------------------------
 # CORS middleware
 # ---------------------------------------------------------------------------