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packages/network/target/Relays.ts

@@ -0,0 +1,30 @@
+import {Emitter} from '@coracle.social/lib'
+import type {Message} from '../Socket'
+import type {Connection} from '../Connection'
+
+export class Relays extends Emitter {
+  constructor(readonly connections: Connection[]) {
+    super()
+
+    connections.forEach(connection => {
+      connection.on('receive', this.onMessage)
+    })
+  }
+
+  send = (...payload: Message) => {
+    this.connections.forEach(connection => {
+      connection.send(payload)
+    })
+  }
+
+  onMessage = (connection: Connection, [verb, ...payload]: Message) => {
+    this.emit(verb, connection.url, ...payload)
+  }
+
+  cleanup = () => {
+    this.removeAllListeners()
+    this.connections.forEach(connection => {
+      connection.off('receive', this.onMessage)
+    })
+  }
+}