Remove buffer from cursor

src/agent/network.ts

@@ -115,7 +115,6 @@ class Cursor {
   delta?: number
   until: Record<string, number>
   since: number
-  buffer: Array<MyEvent>
   seen: Set<string>
   constructor({relays, limit = 20, delta = undefined}) {
     this.relays = relays
@@ -123,7 +122,6 @@ class Cursor {
     this.delta = delta
     this.until = fromPairs(relays.map(({url}) => [url, now()]))
     this.since = delta ? now() : 0
-    this.buffer = []
     this.seen = new Set()
   }
   async loadPage({filter, onChunk}) {
@@ -138,21 +136,8 @@ class Cursor {
     await Promise.all(
       this.getGroupedRelays()
         .filter(([until]) => until > this.since)
-        .map(([until, relays]) => {
-          // If the relay gave us a bunch of stuff outside our window, hold on to
-          // it until it's needed, and don't request it again. Don't add since to
-          // our filter so we can paginate without stalling.
-          this.buffer = this.buffer.filter(event => {
-            if (event.created_at > this.since) {
-              onEvent(event)
-
-              return false
-            }
-
-            return true
-          })
-
-          return load({
+        .map(([until, relays]) =>
+          load({
             relays: relays,
             filter: ensurePlural(filter).map(
               mergeLeft({until, limit: this.limit, since: this.since})
@@ -169,15 +154,11 @@ class Cursor {
 
                 this.seen.add(event.id)
 
-                if (event.created_at < this.since) {
-                  this.buffer.push(event)
-                } else {
-                  onEvent(event)
-                }
+                onEvent(event)
               }
             },
           })
-        })
+        )
     )
 
     // If we got zero results for any relays, they have nothing for the given window,