Merge seen note perf improvements by kernel #1174

kernelkind (2):
      fix(notif-indicator): more performant impl
      refactor(NoteFreshness): remove now unnecessary `NoteFreshness`

crates/notedeck_columns/src/app.rs

@@ -698,11 +698,7 @@ fn render_damus_mobile(
                     break 'brk;
                 }
 
-                let unseen_notif = unseen_notification(
-                    app,
-                    app_ctx.ndb,
-                    app_ctx.accounts.get_selected_account().key.pubkey,
-                );
+                let unseen_notif = unseen_notification(app, app_ctx.accounts, active_col);
 
                 if skb_rect.is_none() {
                     let resp = toolbar(ui, unseen_notif);

crates/notedeck_columns/src/timeline/cache.rs

@@ -258,7 +258,7 @@ impl TimelineCache {
             return;
         };
 
-        tl.current_view_mut().freshness.set_fresh();
+        tl.seen_latest_notes = true;
     }
 }
 

crates/notedeck_columns/src/timeline/mod.rs

@@ -8,7 +8,6 @@ use crate::{
 
 use notedeck::{
     contacts::hybrid_contacts_filter,
-    debouncer::Debouncer,
     filter::{self, HybridFilter},
     tr, Accounts, CachedNote, ContactState, FilterError, FilterState, FilterStates, Localization,
     NoteCache, NoteRef, UnknownIds,
@@ -17,12 +16,8 @@ use notedeck::{
 use egui_virtual_list::VirtualList;
 use enostr::{PoolRelay, Pubkey, RelayPool};
 use nostrdb::{Filter, Ndb, Note, NoteKey, Transaction};
-use std::{
-    cell::RefCell,
-    collections::HashSet,
-    time::{Duration, UNIX_EPOCH},
-};
-use std::{rc::Rc, time::SystemTime};
+use std::rc::Rc;
+use std::{cell::RefCell, collections::HashSet};
 
 use tracing::{debug, error, info, warn};
 
@@ -111,7 +106,6 @@ pub struct TimelineTab {
     pub selection: i32,
     pub filter: ViewFilter,
     pub list: Rc<RefCell<VirtualList>>,
-    pub freshness: NotesFreshness,
 }
 
 impl TimelineTab {
@@ -153,7 +147,6 @@ impl TimelineTab {
             selection,
             filter,
             list,
-            freshness: NotesFreshness::default(),
         }
     }
 
@@ -243,6 +236,7 @@ pub struct Timeline {
     pub filter: FilterStates,
     pub views: Vec<TimelineTab>,
     pub selected_view: usize,
+    pub seen_latest_notes: bool,
 
     pub subscription: TimelineSub,
     pub enable_front_insert: bool,
@@ -317,6 +311,7 @@ impl Timeline {
             subscription,
             selected_view,
             enable_front_insert,
+            seen_latest_notes: false,
         }
     }
 
@@ -489,7 +484,7 @@ impl Timeline {
         if new_note_ids.is_empty() {
             return Ok(());
         } else {
-            debug!("{} new notes! {:?}", new_note_ids.len(), new_note_ids);
+            self.seen_latest_notes = false;
         }
 
         self.insert(&new_note_ids, ndb, txn, unknown_ids, note_cache, reversed)
@@ -880,101 +875,3 @@ pub fn is_timeline_ready(
         }
     }
 }
-
-#[derive(Debug)]
-pub struct NotesFreshness {
-    debouncer: Debouncer,
-    state: NotesFreshnessState,
-}
-
-#[derive(Debug)]
-enum NotesFreshnessState {
-    Fresh {
-        timestamp_viewed: u64,
-    },
-    Stale {
-        have_unseen: bool,
-        timestamp_last_viewed: u64,
-    },
-}
-
-impl Default for NotesFreshness {
-    fn default() -> Self {
-        Self {
-            debouncer: Debouncer::new(Duration::from_secs(2)),
-            state: NotesFreshnessState::Stale {
-                have_unseen: true,
-                timestamp_last_viewed: 0,
-            },
-        }
-    }
-}
-
-impl NotesFreshness {
-    pub fn set_fresh(&mut self) {
-        if !self.debouncer.should_act() {
-            return;
-        }
-        self.state = NotesFreshnessState::Fresh {
-            timestamp_viewed: timestamp_now(),
-        };
-        self.debouncer.bounce();
-    }
-
-    pub fn update(&mut self, check_have_unseen: impl FnOnce(u64) -> bool) {
-        if !self.debouncer.should_act() {
-            return;
-        }
-
-        match &self.state {
-            NotesFreshnessState::Fresh { timestamp_viewed } => {
-                let Ok(dur) = SystemTime::now()
-                    .duration_since(UNIX_EPOCH + Duration::from_secs(*timestamp_viewed))
-                else {
-                    return;
-                };
-
-                if dur > Duration::from_secs(2) {
-                    self.state = NotesFreshnessState::Stale {
-                        have_unseen: check_have_unseen(*timestamp_viewed),
-                        timestamp_last_viewed: *timestamp_viewed,
-                    };
-                }
-            }
-            NotesFreshnessState::Stale {
-                have_unseen,
-                timestamp_last_viewed,
-            } => {
-                if *have_unseen {
-                    return;
-                }
-
-                self.state = NotesFreshnessState::Stale {
-                    have_unseen: check_have_unseen(*timestamp_last_viewed),
-                    timestamp_last_viewed: *timestamp_last_viewed,
-                };
-            }
-        }
-
-        self.debouncer.bounce();
-    }
-
-    pub fn has_unseen(&self) -> bool {
-        match &self.state {
-            NotesFreshnessState::Fresh {
-                timestamp_viewed: _,
-            } => false,
-            NotesFreshnessState::Stale {
-                have_unseen,
-                timestamp_last_viewed: _,
-            } => *have_unseen,
-        }
-    }
-}
-
-fn timestamp_now() -> u64 {
-    std::time::SystemTime::now()
-        .duration_since(std::time::UNIX_EPOCH)
-        .unwrap_or(Duration::ZERO)
-        .as_secs()
-}

crates/notedeck_columns/src/toolbar.rs

@@ -1,4 +1,3 @@
-use nostrdb::Transaction;
 use notedeck::AppContext;
 
 use crate::{
@@ -10,42 +9,24 @@ use crate::{
 #[profiling::function]
 pub fn unseen_notification(
     columns: &mut Damus,
-    ndb: &nostrdb::Ndb,
-    current_pk: notedeck::enostr::Pubkey,
+    accounts: &notedeck::Accounts,
+    active_col: usize,
 ) -> bool {
-    let Some(tl) = columns
-        .timeline_cache
-        .get_mut(&TimelineKind::Notifications(current_pk))
-    else {
+    let top = columns.columns(accounts).column(active_col).router().top();
+    let current_pk = accounts.get_selected_account().keypair().pubkey;
+
+    if let Route::Timeline(TimelineKind::Notifications(notif_pk)) = top {
+        if notif_pk == current_pk {
             return false;
-    };
-
-    let freshness = &mut tl.current_view_mut().freshness;
-    freshness.update(|timestamp_last_viewed| {
-        profiling::scope!("NotesFreshness::update closure");
-        let filter = {
-            profiling::scope!("NotesFreshness::update filter instantiation");
-            enostr::Filter::new_with_capacity(1)
-                .pubkeys([current_pk.bytes()])
-                .kinds(crate::timeline::kind::notification_kinds())
-                .limit(1)
-                .since(timestamp_last_viewed)
-                .build()
-        };
-        let txn = Transaction::new(ndb).expect("txn");
-
-        let Some(res) = {
-            profiling::scope!("NoteFreshness::update Ndb::query");
-            ndb.query(&txn, &[filter], 1)
         }
-        .ok() else {
+    }
+
+    let notif_kind = TimelineKind::Notifications(*current_pk);
+    let Some(tl) = columns.timeline_cache.get_mut(&notif_kind) else {
         return false;
     };
 
-        !res.is_empty()
-    });
-
-    freshness.has_unseen()
+    !tl.seen_latest_notes
 }
 
 /// When you click the toolbar button, these actions