switch to TimelineCache

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_columns/src/multi_subscriber.rs

@@ -1,14 +1,13 @@
 use enostr::{Filter, RelayPool};
-use nostrdb::{Ndb, Note, Transaction};
-use tracing::{debug, error, info};
+use nostrdb::Ndb;
+use tracing::{error, info};
 use uuid::Uuid;
 
-use crate::Error;
-use notedeck::{NoteRef, UnifiedSubscription};
+use notedeck::UnifiedSubscription;
 
 pub struct MultiSubscriber {
     filters: Vec<Filter>,
-    sub: Option<UnifiedSubscription>,
+    pub sub: Option<UnifiedSubscription>,
     subscribers: u32,
 }
 
@@ -105,30 +104,4 @@ impl MultiSubscriber {
             )
         }
     }
-
-    pub fn poll_for_notes(&mut self, ndb: &Ndb, txn: &Transaction) -> Result<Vec<NoteRef>, Error> {
-        let sub = self.sub.as_ref().ok_or(notedeck::Error::no_active_sub())?;
-        let new_note_keys = ndb.poll_for_notes(sub.local, 500);
-
-        if new_note_keys.is_empty() {
-            return Ok(vec![]);
-        } else {
-            debug!("{} new notes! {:?}", new_note_keys.len(), new_note_keys);
-        }
-
-        let mut notes: Vec<Note<'_>> = Vec::with_capacity(new_note_keys.len());
-        for key in new_note_keys {
-            let note = if let Ok(note) = ndb.get_note_by_key(txn, key) {
-                note
-            } else {
-                continue;
-            };
-
-            notes.push(note);
-        }
-
-        let note_refs: Vec<NoteRef> = notes.iter().map(|n| NoteRef::from_note(n)).collect();
-
-        Ok(note_refs)
-    }
 }