feat(backend): watches fire on new, edited and deleted messages and on coming online, legacy keyword included

backend/src/watcher/runner.py

@@ -9,6 +9,7 @@ from dependencies.container import container
 from utils.listen import Listener
 from utils.logging import logger, setup_logging
 from utils.read.bots import BOTS_CHANGED_CHANNEL
+from utils.read.watches import WATCHES_CHANGED_CHANNEL
 from utils.storage import ContentAddressedStorage
 from watcher.registry import BotRegistry
 
@@ -32,7 +33,20 @@ def _change_listener(registry: BotRegistry, tasks: set[asyncio.Task]) -> Listene
         tasks.add(task)
         task.add_done_callback(tasks.discard)
 
-    return Listener("watcher", {BOTS_CHANGED_CHANNEL: on_change}, lambda: on_change(""))
+    def on_watch(_payload: str) -> None:
+        task = asyncio.create_task(registry.refresh_watches())
+        tasks.add(task)
+        task.add_done_callback(tasks.discard)
+
+    def on_reconnect() -> None:
+        on_change("")
+        on_watch("")
+
+    return Listener(
+        "watcher",
+        {BOTS_CHANGED_CHANNEL: on_change, WATCHES_CHANGED_CHANNEL: on_watch},
+        on_reconnect,
+    )
 
 
 async def runner() -> None: