Add offline Twitch chat test mode

app/main.py

@@ -47,6 +47,7 @@ twitch_chat_client: TwitchIRCClient | None = None
 twitch_chat_task: asyncio.Task | None = None
 twitch_session_id: str | None = None
 twitch_live_status: TwitchLiveStatusService | None = None
+offline_chat_test_mode: bool = settings.TWITCH_OFFLINE_CHAT_TEST_MODE
 
 
 async def require_admin(
@@ -92,6 +93,8 @@ def twitch_configured() -> bool:
 
 async def channel_is_live_for_chat(channel_name: str) -> bool:
     """Return whether the agent may interact with chat for a channel."""
+    if offline_chat_test_mode:
+        return True
     if not settings.TWITCH_REQUIRE_LIVE_STREAM:
         return True
     if not twitch_live_status:
@@ -496,6 +499,7 @@ async def get_twitch_status() -> dict:
         "configured": configured,
         "running": bool(twitch_chat_task and not twitch_chat_task.done()),
         "require_live_stream": settings.TWITCH_REQUIRE_LIVE_STREAM,
+        "offline_chat_test_mode": offline_chat_test_mode,
         "live_status": live_status,
         "session_id": twitch_session_id,
         **client_status,
@@ -503,6 +507,24 @@ async def get_twitch_status() -> dict:
     }
 
 
+@app.post("/admin/twitch/offline-test-mode", dependencies=[Depends(require_admin)])
+async def set_offline_chat_test_mode(enabled: bool = Form(...)) -> dict:
+    """Allow or block Twitch chat posting while the stream is offline."""
+    global offline_chat_test_mode
+
+    offline_chat_test_mode = enabled
+    return {
+        "status": "offline_chat_test_mode_updated",
+        "offline_chat_test_mode": offline_chat_test_mode,
+        "warning": (
+            "Agent may post to Twitch chat while the stream is offline"
+            if offline_chat_test_mode
+            else None
+        ),
+        "timestamp": datetime.utcnow().isoformat(),
+    }
+
+
 @app.get("/admin/stream/status", dependencies=[Depends(require_admin)])
 async def get_current_stream_status() -> dict:
     """Get one operator view of the current Twitch stream runtime state."""
@@ -538,7 +560,8 @@ async def get_current_stream_status() -> dict:
             await twitch_live_status.get_status(session_info["channel_name"])
         ).to_dict()
     chat_interaction_allowed = (
-        not settings.TWITCH_REQUIRE_LIVE_STREAM
+        offline_chat_test_mode
+        or not settings.TWITCH_REQUIRE_LIVE_STREAM
         or bool(live_status and live_status["is_live"])
     )
 
@@ -557,6 +580,7 @@ async def get_current_stream_status() -> dict:
             "configured": twitch_configured(),
             "running": bool(twitch_chat_task and not twitch_chat_task.done()),
             "require_live_stream": settings.TWITCH_REQUIRE_LIVE_STREAM,
+            "offline_chat_test_mode": offline_chat_test_mode,
             "live_status": live_status,
             "session_id": twitch_session_id,
             **twitch_status,