resubscribe when a new relay is added

tasks.py

@@ -1,5 +1,6 @@
 import asyncio
 import ssl
+import json
 import threading
 
 from .nostr.event import Event
@@ -17,6 +18,13 @@ from .crud import get_relays
 
 
 async def init_relays():
+    # we save any subscriptions teporarily to re-add them after reinitializing the client
+    subscriptions = {}
+    for relay in nostr.client.relay_manager.relays.values():
+        # relay.add_subscription(id, filters)
+        for subscription_id, filters in relay.subscriptions.items():
+            subscriptions[subscription_id] = filters
+
     # reinitialize the entire client
     nostr.__init__()
     # get relays from db
@@ -24,6 +32,16 @@ async def init_relays():
     # set relays and connect to them
     nostr.client.relays = list(set([r.url for r in relays.__root__ if r.url]))
     nostr.client.connect()
+
+    await asyncio.sleep(2)
+    # re-add subscriptions
+    for subscription_id, subscription in subscriptions.items():
+        nostr.client.relay_manager.add_subscription(
+            subscription_id, subscription.filters
+        )
+        s = subscription.to_json_object()
+        json_str = json.dumps(["REQ", s["id"], s["filters"][0]])
+        nostr.client.relay_manager.publish_message(json_str)
     return