feat: add procedures for dependency lists

README.md

@@ -94,6 +94,7 @@ To stop time-tracking completely, simply move to the root of all tasks.
   + no match: create & activate task
 - `.2` - set view depth to `2`, which can be substituted for any number (how many subtask levels to show, default 1)
 - `/[TEXT]` - like `.`, but never creates a task
+- `|[TASK]` - (un)mark current task as procedure or create and activate a new task procedure (where subtasks automatically depend on the previously created task)
 
 Dots can be repeated to move to parent tasks.
 
@@ -132,6 +133,7 @@ An active tag or state filter will also set that attribute for newly created tas
 - `rtime` - time tracked on this tasks and all recursive subtasks
 - `progress` - recursive subtask completion in percent
 - `subtasks` - how many direct subtasks are complete
+- TBI `depends`
 
 For debugging: `props`, `alltags`, `descriptions`
 
@@ -151,6 +153,7 @@ Considering to use Calendar: https://github.com/nostr-protocol/nips/blob/master/
 
 ## Plans
 
+- Remove state filter when moving up?
 - Task markdown support? - colored
 - Time tracking: Ability to postpone task and add planned timestamps (calendar entry)
 - Parse Hashtag tags from task name
@@ -168,6 +171,8 @@ The following features are not ready to be implemented
 because they need conceptualization.
 Suggestions welcome!
 
+- Task Dependencies
+- Task Templates
 - Task Ownership
 - Combined formatting and recursion specifiers
   + progress count/percentage and recursive or not

src/kinds.rs

@@ -3,8 +3,9 @@ use log::info;
 use nostr_sdk::{Alphabet, EventBuilder, EventId, Kind, Tag, TagStandard};
 
 pub const TASK_KIND: u16 = 1621;
+pub const PROCEDURE_KIND: u16 = 1639;
 pub const TRACKING_KIND: u16 = 1650;
-pub const KINDS: [u16; 7] = [1, TASK_KIND, TRACKING_KIND, 1630, 1631, 1632, 1633];
+pub const KINDS: [u16; 8] = [1, TASK_KIND, TRACKING_KIND, PROCEDURE_KIND, 1630, 1631, 1632, 1633];
 
 pub const PROPERTY_COLUMNS: &str = "Available properties:
 - `id`

src/main.rs

@@ -320,6 +320,28 @@ async fn main() {
                         tasks.undo();
                     }
 
+                    Some('|') =>
+                        match arg {
+                            None => match tasks.get_position() {
+                                None => {
+                                    tasks.set_filter(
+                                        tasks.current_tasks().into_iter()
+                                            .filter(|t| t.pure_state() == State::Procedure)
+                                            .map(|t| t.event.id)
+                                            .collect()
+                                    );
+                                }
+                                Some(id) => {
+                                    tasks.set_state_for(id, "", State::Procedure);
+                                }
+                            },
+                            Some(arg) => {
+                                let id = tasks.make_task(arg);
+                                tasks.set_state_for(id, "", State::Procedure);
+                                tasks.move_to(Some(id));
+                            }
+                        }
+
                     Some('?') => {
                         tasks.set_state_filter(arg.map(|s| s.to_string()));
                     }

src/task.rs

@@ -1,4 +1,5 @@
 use fmt::Display;
+use std::cmp::Ordering;
 use std::collections::{BTreeSet, HashSet};
 use std::fmt;
 
@@ -8,29 +9,47 @@ use log::{debug, error, info, trace, warn};
 use nostr_sdk::{Event, EventBuilder, EventId, Kind, Tag, TagStandard, Timestamp};
 
 use crate::helpers::some_non_empty;
-use crate::kinds::is_hashtag;
+use crate::kinds::{is_hashtag, PROCEDURE_KIND};
 
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub(crate) struct Task {
+    /// Event that defines this task
     pub(crate) event: Event,
-    pub(crate) children: HashSet<EventId>,
+    /// Cached sorted tags of the event with references remove - do not modify!
-    pub(crate) props: BTreeSet<Event>,
-    /// Cached sorted tags of the event
     pub(crate) tags: Option<BTreeSet<Tag>>,
+    /// Parent task references derived from the event tags
     parents: Vec<EventId>,
+
+    /// Reference to children, populated dynamically
+    pub(crate) children: HashSet<EventId>,
+    /// Events belonging to this task, such as state updates and notes
+    pub(crate) props: BTreeSet<Event>,
+}
+
+impl PartialOrd<Self> for Task {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.event.partial_cmp(&other.event)
+    }
+}
+
+impl Ord for Task {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.event.cmp(&other.event)
+    }
 }
 
 impl Task {
     pub(crate) fn new(event: Event) -> Task {
-        let (parents, tags) = event.tags.iter().partition_map(|tag| match tag.as_standardized() {
+        let (refs, tags) = event.tags.iter().partition_map(|tag| match tag.as_standardized() {
             Some(TagStandard::Event { event_id, .. }) => return Left(event_id),
             _ => Right(tag.clone()),
         });
+        // Separate refs for dependencies
         Task {
             children: Default::default(),
             props: Default::default(),
             tags: Some(tags).filter(|t: &BTreeSet<Tag>| !t.is_empty()),
-            parents,
+            parents: refs,
             event,
         }
     }
@@ -117,6 +136,7 @@ impl Task {
             "hashtags" => self.filter_tags(|tag| { is_hashtag(tag) }),
             "tags" => self.filter_tags(|_| true),
             "alltags" => Some(format!("{:?}", self.tags)),
+            "parents" => Some(format!("{:?}", self.parents.iter().map(|id| id.to_string()).collect_vec())),
             "props" => Some(format!(
                 "{:?}",
                 self.props
@@ -172,18 +192,20 @@ impl Display for TaskState {
 pub(crate) enum State {
     Closed,
     Open,
-    Active,
+    Procedure,
+    Pending,
     Done,
 }
 impl TryFrom<Kind> for State {
     type Error = ();
 
     fn try_from(value: Kind) -> Result<Self, Self::Error> {
-        match value.as_u32() {
+        match value.as_u16() {
             1630 => Ok(State::Open),
             1631 => Ok(State::Done),
             1632 => Ok(State::Closed),
-            1633 => Ok(State::Active),
+            1633 => Ok(State::Pending),
+            PROCEDURE_KIND => Ok(State::Procedure),
             _ => Err(()),
         }
     }
@@ -191,7 +213,7 @@ impl TryFrom<Kind> for State {
 impl State {
     pub(crate) fn is_open(&self) -> bool {
         match self {
-            State::Open | State::Active => true,
+            State::Open | State::Procedure => true,
             _ => false,
         }
     }
@@ -201,7 +223,8 @@ impl State {
             State::Open => 1630,
             State::Done => 1631,
             State::Closed => 1632,
-            State::Active => 1633,
+            State::Pending => 1633,
+            State::Procedure => PROCEDURE_KIND,
         }
     }
 }

src/tasks.rs

@@ -11,8 +11,9 @@ use chrono::LocalResult::Single;
 use colored::Colorize;
 use itertools::Itertools;
 use log::{debug, error, info, trace, warn};
-use nostr_sdk::{Event, EventBuilder, EventId, Keys, Kind, PublicKey, Tag, TagStandard, Timestamp, Url};
+use nostr_sdk::{Event, EventBuilder, EventId, Keys, Kind, PublicKey, Tag, TagStandard, Timestamp, UncheckedUrl, Url};
 use nostr_sdk::base64::write::StrConsumer;
+use nostr_sdk::prelude::Marker;
 use TagStandard::Hashtag;
 
 use crate::{Events, EventSender};
@@ -306,7 +307,7 @@ impl Tasks {
                 // TODO apply filters in transit
                 let state = t.pure_state();
                 self.state.as_ref().map_or_else(|| {
-                    state == State::Open || (
+                    state.is_open() || (
                         state == State::Done &&
                             t.parent_id() != None
                     )
@@ -382,13 +383,13 @@ impl Tasks {
                             .map_or(String::new(), |p| format!("{:2.0}%", p * 100.0)),
                         "path" => self.get_task_path(Some(task.event.id)),
                         "rpath" => self.relative_path(task.event.id),
-                        // TODO format strings as config
+                        // TODO format strings configurable
                         "time" => display_time("MMMm", self.time_tracked(*task.get_id())),
                         "rtime" => {
                             let time = self.total_time_tracked(*task.get_id());
                             total_time += time;
                             display_time("HH:MM", time)
-                        },
+                        }
                         prop => task.get(prop).unwrap_or(String::new()),
                     })
                     .collect::<Vec<String>>()
@@ -540,7 +541,31 @@ impl Tasks {
 
     /// Sanitizes input
     pub(crate) fn make_task(&mut self, input: &str) -> EventId {
-        let id = self.submit(self.parse_task(input.trim()));
+        let tag: Option<Tag> = self.get_current_task()
+            .and_then(|t| {
+                println!("{:?}", t);
+                if t.pure_state() == State::Procedure {
+                    t.children.iter()
+                        .filter_map(|id| self.get_by_id(id))
+                        .max()
+                        .map(|t| {
+                            Tag::from(
+                                TagStandard::Event {
+                                    event_id: t.event.id,
+                                    relay_url: self.sender.url.as_ref().map(|url| UncheckedUrl::new(url.as_str())),
+                                    marker: Some(Marker::Custom("depends".to_string())),
+                                    public_key: Some(t.event.pubkey),
+                                }
+                            )
+                        })
+                } else {
+                    None
+                }
+            });
+        let id = self.submit(
+            self.parse_task(input.trim())
+                .add_tags(tag.into_iter())
+        );
         self.state.clone().inspect(|s| self.set_state_for_with(id, s));
         id
     }
@@ -604,7 +629,7 @@ impl Tasks {
             t.children.insert(event.id);
         });
         if self.tasks.contains_key(&event.id) {
-            warn!("Did not insert duplicate event {}", event.id);
+            debug!("Did not insert duplicate event {}", event.id); // TODO warn in next sdk version
         } else {
             self.tasks.insert(event.id, Task::new(event));
         }