From b8047ab1efe8c2f452844bfb3a40d3dc87666d26 Mon Sep 17 00:00:00 2001
From: unspeaker <hora.nqma@protonmail.com>
Date: Fri, 1 Nov 2024 16:23:47 +0200
Subject: [PATCH] launch countdown, pt.1

---
 crates/tek_core/src/time.rs              | 14 +++-----------
 crates/tek_sequencer/src/arranger_tui.rs | 11 ++++++++---
 crates/tek_sequencer/src/lib.rs          |  1 +
 3 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/crates/tek_core/src/time.rs b/crates/tek_core/src/time.rs
index cd58108d..1df587ad 100644
--- a/crates/tek_core/src/time.rs
+++ b/crates/tek_core/src/time.rs
@@ -77,7 +77,7 @@ impl Timebase {
         TicksIterator { fpt: self.samples_per_pulse(), sample: start, start, end }
     }
 }
-impl Default for Timebase { fn default () -> Self { Self::new(48000f64, 150f64, 96f64) } }
+impl Default for Timebase { fn default () -> Self { Self::new(48000f64, 150f64, DEFAULT_PPQ) } }
 impl Instant {
     pub fn zero (timebase: &Arc<Timebase>) -> Self {
         Self { usec: 0.into(), sample: 0.into(), pulse: 0.into(), timebase: timebase.clone() }
@@ -126,12 +126,7 @@ impl Instant {
     }
 }
 /// Iterator that emits subsequent ticks within a range.
-pub struct TicksIterator {
-    fpt:    f64,
-    sample: usize,
-    start:  usize,
-    end:    usize,
-}
+pub struct TicksIterator { fpt: f64, sample: usize, start: usize, end: usize, }
 impl Iterator for TicksIterator {
     type Item = (usize, usize);
     fn next (&mut self) -> Option<Self::Item> {
@@ -305,10 +300,7 @@ pub const NOTE_DURATIONS: [(usize, &str);26] = [
 ];
 /// Returns the next shorter length
 pub fn prev_note_length (pulses: usize) -> usize {
-    for i in 1..=16 {
-        let length = NOTE_DURATIONS[16-i].0;
-        if length < pulses { return length }
-    }
+    for i in 1..=16 { let length = NOTE_DURATIONS[16-i].0; if length < pulses { return length } }
     pulses
 }
 /// Returns the next longer length
diff --git a/crates/tek_sequencer/src/arranger_tui.rs b/crates/tek_sequencer/src/arranger_tui.rs
index 3d206d47..1acd12f7 100644
--- a/crates/tek_sequencer/src/arranger_tui.rs
+++ b/crates/tek_sequencer/src/arranger_tui.rs
@@ -141,6 +141,7 @@ impl<'a> Content for VerticalArranger<'a, Tui> {
         let track_title_h = 2u16;
         let tracks_footer = 3u16;
         let scene_title_w = 3 + Scene::longest_name(scenes) as u16; // x of 1st track
+        let clock         = &self.0.clock;
         let arrangement   = Layers::new(move |add|{
             let rows: &[(usize, usize)] = rows.as_ref();
             let cols: &[(usize, usize)] = cols.as_ref();
@@ -187,15 +188,19 @@ impl<'a> Content for VerticalArranger<'a, Tui> {
             });
             // track controls
             let footer = row!((track, w) in tracks.iter().zip(cols.iter().map(|col|col.0))=>{
-                let player  = &track.player;
-                let clock   = &player.clock;
+                let player = &track.player;
                 let elapsed = player.phrase.as_ref()
                     .map(|_|player.samples_since_start())
                     .flatten()
                     .map(|t|format!("▎{t:>}"))
                     .unwrap_or(String::from("▎"));
                 let until_next = player.next_phrase.as_ref()
-                    .map(|(t, _)|format!("▎-{:>}", t.format_beat()))
+                    .map(|(t, _)|{
+                        let target    = t.pulse().get();
+                        let current   = clock.instant.pulse().get();
+                        let remaining = clock.timebase().format_beats(target - current);
+                        format!("▎{remaining:>}")
+                    })
                     .unwrap_or(String::from("▎"));
                 let output_name = track.player.midi_outputs.get(0)
                     .map(|port|port.short_name())
diff --git a/crates/tek_sequencer/src/lib.rs b/crates/tek_sequencer/src/lib.rs
index 03a3a380..ec393a45 100644
--- a/crates/tek_sequencer/src/lib.rs
+++ b/crates/tek_sequencer/src/lib.rs
@@ -15,6 +15,7 @@ submod! {
     transport transport_cmd transport_tui transport_snd
 }
 
+/// FIXME: use PPQ value from global timebase
 pub const PPQ: usize = 96;
 
 pub const CORNERS: CornersTall = CornersTall(CORNERS_STYLE);