feat: enable state filtering

README.md

@@ -36,10 +36,12 @@ Dots can be repeated to move to parent tasks
 - `:[IND][COL]` - add / remove property column COL to IND or end
 - `>[TEXT]` - Complete active task and move to parent, with optional state description
 - `<[TEXT]` - Close active task and move to parent, with optional state description
-- `-TEXT` - add text note (comment / description)
 - `#TAG` - filter by tag
+- `?TAG` - filter by state (type or description)
+- `-TEXT` - add text note (comment / description)
 
 State descriptions can be used for example for Kanban columns.
+An active tag or state filter will also create new tasks with those corresponding attributes.
 
 ### Available Columns
 

src/main.rs

@@ -139,6 +139,12 @@ async fn main() {
 
     println!();
     loop {
+        tasks.print_current_tasks();
+
+        print!(" {}) ", tasks.taskpath(tasks.get_position()));
+        stdout().flush().unwrap();
+        match stdin().lines().next() {
+            Some(Ok(input)) => {
                 while let Ok(notification) = notifications.try_recv() {
                     if let RelayPoolNotification::Event {
                         subscription_id,
@@ -150,12 +156,7 @@ async fn main() {
                         tasks.add(*event);
                     }
                 }
-        tasks.print_current_tasks();
 
-        print!(" {}) ", tasks.taskpath(tasks.get_position()));
-        stdout().flush().unwrap();
-        match stdin().lines().next() {
-            Some(Ok(input)) => {
                 let mut iter = input.chars();
                 let op = iter.next();
                 match op {
@@ -188,6 +189,25 @@ async fn main() {
                         }
                     },
 
+                    Some('?') => {
+                        let arg = &input[1..];
+                        tasks.move_to(tasks.get_position());
+                        tasks.set_filter(
+                            tasks
+                                .current_tasks()
+                                .into_iter()
+                                .filter(|t| {
+                                    if arg.is_empty() {
+                                        t.pure_state() == State::Open
+                                    } else {
+                                        t.state().is_some_and(|s| s.get_label() == arg)
+                                    }
+                                })
+                                .map(|t| t.event.id)
+                                .collect(),
+                        );
+                    }
+
                     Some('-') => tasks.add_note(&input[1..]),
 
                     Some('>') | Some('<') => {

src/task.rs

@@ -42,14 +42,7 @@ impl Task {
 
     fn states(&self) -> impl Iterator<Item = TaskState> + '_ {
         self.props.iter().filter_map(|event| {
-            match event.kind.as_u32() {
-                1630 => Some(State::Open),
-                1631 => Some(State::Done),
-                1632 => Some(State::Closed),
-                1633 => Some(State::Active),
-                _ => None,
-            }
-            .map(|s| TaskState {
+            event.kind.try_into().ok().map(|s| TaskState {
                 name: if event.content.is_empty() {
                     None
                 } else {
@@ -61,7 +54,7 @@ impl Task {
         })
     }
 
-    fn state(&self) -> Option<TaskState> {
+    pub(crate) fn state(&self) -> Option<TaskState> {
         self.states().max_by_key(|t| t.time)
     }
 
@@ -130,11 +123,16 @@ impl Task {
     }
 }
 
-struct TaskState {
+pub(crate) struct TaskState {
     name: Option<String>,
     state: State,
     time: Timestamp,
 }
+impl TaskState {
+    pub(crate) fn get_label(&self) -> String {
+        self.name.clone().unwrap_or_else(|| self.state.to_string())
+    }
+}
 impl fmt::Display for TaskState {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(
@@ -155,6 +153,19 @@ pub(crate) enum State {
     Active,
     Done,
 }
+impl TryFrom<Kind> for State {
+    type Error = ();
+
+    fn try_from(value: Kind) -> Result<Self, Self::Error> {
+        match value.as_u32() {
+            1630 => Ok(State::Open),
+            1631 => Ok(State::Done),
+            1632 => Ok(State::Closed),
+            1633 => Ok(State::Active),
+            _ => Err(()),
+        }
+    }
+}
 impl State {
     pub(crate) fn kind(&self) -> Kind {
         match self {