Remove relay package, move everything into net

packages/net/src/adapter.ts

@@ -1,8 +1,16 @@
 import EventEmitter from "events"
-import {call, mergeRight, on} from "@welshman/lib"
-import {isRelayUrl} from "@welshman/util"
-import {LocalRelay, LOCAL_RELAY_URL} from "@welshman/relay"
-import {RelayMessage, ClientMessage} from "./message.js"
+import {call, sleep, mergeRight, on} from "@welshman/lib"
+import {isRelayUrl, matchFilters, Filter} from "@welshman/util"
+import {LOCAL_RELAY_URL, Repository} from "./repository"
+import {
+  RelayMessage,
+  RelayMessageType,
+  ClientMessage,
+  ClientMessageType,
+  ClientEvent,
+  ClientReq,
+  ClientClose,
+} from "./message.js"
 import {Socket, SocketEvent} from "./socket.js"
 import {Unsubscriber} from "./util.js"
 import {netContext, NetContext} from "./context.js"
@@ -53,12 +61,20 @@ export class SocketAdapter extends AbstractAdapter {
 }
 
 export class LocalAdapter extends AbstractAdapter {
-  constructor(readonly relay: LocalRelay) {
+  subs = new Map<string, Filter[]>()
+
+  constructor(readonly repository: Repository) {
     super()
 
     this._unsubscribers.push(
-      on(relay, "*", (...message: RelayMessage) => {
-        this.emit(AdapterEvent.Receive, message, LOCAL_RELAY_URL)
+      on(repository, "update", ({added}) => {
+        for (const [subId, filters] of this.subs.entries()) {
+          for (const event of added) {
+            if (matchFilters(filters, event)) {
+              this.#receive([RelayMessageType.Event, subId, event])
+            }
+          }
+        }
       }),
     )
   }
@@ -72,9 +88,42 @@ export class LocalAdapter extends AbstractAdapter {
   }
 
   send(message: ClientMessage) {
-    const [type, ...rest] = message
+    switch (message[0]) {
+      case ClientMessageType.Event:
+        return this.#handleEVENT(message as ClientEvent)
+      case ClientMessageType.Close:
+        return this.#handleCLOSE(message as ClientClose)
+      case ClientMessageType.Req:
+        return this.#handleREQ(message as ClientReq)
+    }
+  }
 
-    this.relay.send(type, ...rest)
+  #receive(message: RelayMessage) {
+    this.emit(AdapterEvent.Receive, message, LOCAL_RELAY_URL)
+  }
+
+  #handleEVENT([_, event]: ClientEvent) {
+    this.repository.publish(event)
+
+    // Callers generally expect async relays
+    sleep(1).then(() => this.#receive([RelayMessageType.Ok, event.id, true, ""]))
+  }
+
+  #handleCLOSE([_, subId]: ClientClose) {
+    this.subs.delete(subId)
+  }
+
+  #handleREQ([_, subId, ...filters]: ClientReq) {
+    this.subs.set(subId, filters)
+
+    // Callers generally expect async relays
+    sleep(1).then(() => {
+      for (const event of this.repository.query(filters)) {
+        this.#receive([RelayMessageType.Event, subId, event])
+      }
+
+      this.#receive([RelayMessageType.Eose, subId])
+    })
   }
 }
 
@@ -113,7 +162,7 @@ export const getAdapter = (url: string, adapterContext: AdapterContext = {}) =>
   }
 
   if (url === LOCAL_RELAY_URL) {
-    return new LocalAdapter(new LocalRelay(context.repository))
+    return new LocalAdapter(context.repository)
   }
 
   if (isRelayUrl(url)) {