feat: cache current position to prevent unintuitive behavior

src/main.rs

@@ -787,6 +787,7 @@ async fn main() -> Result<()> {
                         }
                 }
                 tasks.custom_time = None;
+                tasks.update_position();
                 println!("{}", tasks);
             }
             Err(ReadlineError::Eof) => break 'repl,

src/tasks.rs

@@ -75,15 +75,14 @@ pub(crate) struct TasksRelay {
     /// The task properties sorted by
     sorting: VecDeque<String>, // TODO prefix +/- for asc/desc, no prefix for default
 
-    /// A filtered view of the current tasks.
-    /// Would like this to be Task references
-    /// but that doesn't work unless I start meddling with Rc everywhere.
+    /// Temporary filtered view of the current tasks.
+    /// Would like this to be Task references but that doesn't work unless I start meddling with Rc everywhere.
     view: Vec<EventId>,
     search_depth: usize,
     view_depth: usize,
     pub(crate) recurse_activities: bool,
-    // Last position used in interface - needs auto-update
-    //position: Option<EventId>,
+    // Last visible position that intuitively interactions should be based on
+    position: Option<EventId>,
 
     /// Currently active tags
     tags: BTreeSet<Hashtag>,
@@ -195,6 +194,7 @@ impl TasksRelay {
             priority: None,
             keys: vec![sender.pubkey()],
             own_keys: vec![sender.pubkey()],
+            position: None,
 
             search_depth: 4,
             view_depth: 0,
@@ -241,7 +241,19 @@ impl TasksRelay {
     fn own_key(&self) -> PublicKey { self.sender.pubkey() }
 
     pub(crate) fn get_position(&self) -> Option<EventId> {
-        self.get_position_at(now()).1
+        self.position
+    }
+
+    // Update the current position
+    // Returns whether the position changed
+    pub(super) fn update_position(&mut self) -> bool {
+        let new_position = self.get_position_at(now()).1;
+        if new_position != self.position {
+            self.view.clear();
+            self.position = new_position;
+            return true
+        }
+        false
     }
 
     pub(super) fn parse_tracking_stamp_relative(&self, input: &str) -> Option<Timestamp> {
@@ -991,7 +1003,6 @@ impl TasksRelay {
             return;
         }
 
-        self.view.clear();
         let pos = self.get_position();
         if target == pos {
             debug!("Flushing Tasks because of move in place");
@@ -1003,7 +1014,7 @@ impl TasksRelay {
             .and_then(|id| self.get_by_id(&id))
             .is_some_and(|t| t.parent_id() == pos.as_ref())
         {
-            // FIXME this triggers when moving up and into created task
+            // FIXME this triggers when moving up and into created task, making creation like '..task' not undoable
             debug!("Flushing Tasks because of move beyond child");
             self.sender.flush();
         }
@@ -1014,6 +1025,7 @@ impl TasksRelay {
             .skip_while(|e| e.created_at.as_u64() > now.as_u64() + MAX_OFFSET)
             .count() as u64;
         if offset >= MAX_OFFSET {
+            // This is a very odd edge case when a user moves more than MAX_OFFSET times in MAX_OFFSET seconds so we reject
             warn!("Whoa you are moving around quickly! Give me a few seconds to process.")
         }
         self.submit(
@@ -1021,7 +1033,7 @@ impl TasksRelay {
                 .custom_created_at(now + offset),
         );
     }
-
+    
     // Updates
 
     pub(crate) fn make_event_tag_from_id(&self, id: EventId, marker: &str) -> Tag {