create relay manager class

nostr/relay_manager.py

@@ -0,0 +1,39 @@
+import threading
+from .filter import Filters
+from .message_pool import MessagePool
+from .relay import Relay, RelayPolicy
+
+class RelayManager:
+    def __init__(self) -> None:
+        self.relays: list[Relay] = []
+        self.message_pool = MessagePool()
+
+    def add_relay(self, url: str, read: bool, write: bool, subscriptions={}):
+        policy = RelayPolicy(read, write)
+        relay = Relay(url, policy, self.message_pool, subscriptions)
+        self.relays.append(relay)
+
+    def add_subscription(self, id: str, filters: Filters):
+        for relay in self.relays:
+            relay.add_subscription(id, filters)
+
+    def close_subscription(self, id: str):
+        for relay in self.relays:
+            relay.close_subscription(id)
+
+    def open_connections(self):
+        for relay in self.relays:
+            threading.Thread(
+                target=relay.connect,
+                name=f"{relay.url}-thread"
+            ).start()
+
+    def close_connections(self):
+        for relay in self.relays:
+            relay.close()
+
+    def publish_message(self, message: str):
+        for relay in self.relays:
+            if relay.policy.should_write:
+                relay.publish(message)
+