docs: admit that this is a github project now

Reviewed-on: #20

.github/dependabot.yaml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    # Check for updates every Monday
+    schedule:
+      interval: "weekly"

.github/workflows/cargo.yaml

@@ -1,12 +1,19 @@
-name: cargo devel CI
+name: Rust CI
 on:
+  pull_request:
+    branches:
+      - '**'
   push:
     branches:
       - '**'
       # - '!master'
 
+env:
+  CARGO_TERM_COLOR: always
+
 jobs:
-  format:
+  CI:
+    runs-on: ubuntu-latest
     name: cargo CI
     permissions:
       # Give the default GITHUB_TOKEN write permission to commit and push the
@@ -16,15 +23,11 @@ jobs:
       - name: get repo
         uses: actions/checkout@v4
       - name: install rust
-        uses: https://github.com/dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@stable
       - name: install additional rust things
         run: |
           rustup component add rustfmt
           rustup component add clippy
-      - name: install additional system dependencies
-        run: |
-          apt update
-          apt install libdbus-1-dev libasound2-dev -y
       - name: config custom registry
         run: |
           mkdir -p ~/.cargo/
@@ -34,15 +37,19 @@ jobs:
           echo '[registries.cscherr]' >> ~/.cargo/config.toml
           echo 'index = "https://git.cscherr.de/PlexSheep/_cargo-index.git"' >> ~/.cargo/config.toml
           cat ~/.cargo/config.toml
+      - name: install additional system dependencies
+        run: sudo apt-get install -y libasound2-dev libdbus-1-dev
       - name: cargo clippy check
         run: cargo clippy --all-features --all-targets --workspace
       - name: cargo clippy fix
         run: cargo clippy --fix --all-features --all-targets --workspace
       - name: cargo fmt
         run: cargo fmt --all
+      - name: cargo test
+        run: cargo test --all-features --all-targets --workspace
       - name: commit back to repository
-        uses: https://github.com/stefanzweifel/git-auto-commit-action@v5
+        uses: stefanzweifel/git-auto-commit-action@v5
         with:
           # Optional. Commit message for the created commit.
           # Defaults to "Apply automatic changes"
-          commit_message: automatic cargo CI changes
+          commit_message: "ci: automatic Rust CI changes"

.github/workflows/release.yaml

@@ -0,0 +1,56 @@
+name: Release-plz
+
+permissions:
+  pull-requests: write
+  contents: write
+
+on:
+  push:
+    branches:
+      - master
+      - main
+
+jobs:
+
+  # Release unpublished packages.
+  release-plz-release:
+    name: Release-plz release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: install additional system dependencies
+        run: sudo apt-get install -y libasound2-dev libdbus-1-dev
+      - name: Run release-plz
+        uses: MarcoIeni/release-plz-action@v0.5
+        with:
+          command: release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+
+  # Create a PR with the new versions and changelog, preparing the next release.
+  release-plz-pr:
+    name: Release-plz PR
+    runs-on: ubuntu-latest
+    concurrency:
+      group: release-plz-${{ github.ref }}
+      cancel-in-progress: false
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Run release-plz
+        uses: MarcoIeni/release-plz-action@v0.5
+        with:
+          command: release-pr
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "crock"
-version = "0.2.0"
+version = "0.3.1"
 edition = "2021"
 publish = true
 authors = ["Christoph J. Scherr <software@cscherr.de>"]
@@ -21,6 +21,7 @@ sound = ["dep:rodio"]
 [dependencies]
 anyhow = "1.0.86"
 chrono = "0.4.38"
+human-panic = "2.0.0"
 humantime = "2.1.0"
 libpt = { version = "0.6.0", features = ["cli"] }
 notify-rust = { version = "4.11.0", default-features = false, features = [

README.md

@@ -2,15 +2,15 @@
 
 ![Project badge](https://img.shields.io/badge/language-Rust-blue.svg)
 ![Crates.io License](https://img.shields.io/crates/l/crock)
-![Gitea Release](https://img.shields.io/gitea/v/release/PlexSheep/crock?gitea_url=https%3A%2F%2Fgit.cscherr.de)
-![Gitea language count](https://img.shields.io/gitea/languages/count/PlexSheep/crock?gitea_url=https%3A%2F%2Fgit.cscherr.de)
+![GitHub Release](https://img.shields.io/github/v/release/PlexSheep/crock)
+![GitHub language count](https://img.shields.io/github/languages/count/PlexSheep/crock)
+
 
 A little clock for your terminal, written in rust.
 
 ![screenshot](data/media/screenshot.png)
 
-* [Original Repository](https://git.cscherr.de/PlexSheep/crock)
-* [GitHub Mirror](https://github.com/PlexSheep/crock)
+* [GitHub](https://github.com/PlexSheep/crock)
 * [crates.io](https://crates.io/crates/crock)
 
 ## Compilation

src/clock.rs

@@ -1,5 +1,10 @@
 #![warn(clippy::pedantic, clippy::style, clippy::nursery)]
+// That's useful and sometimes I don't need extra stuff
 #![allow(clippy::question_mark_used)]
+// allows us to cast u64 to i64, if the number is too high
+// enough time has passed that I don't care
+#![allow(clippy::cast_possible_wrap)]
+#![allow(clippy::cast_sign_loss)] // it should only be positive anyway
 
 use chrono::{DateTime, Local, SubsecRound, Timelike};
 use clap::Parser;
@@ -11,43 +16,21 @@ use ratatui::backend::CrosstermBackend;
 use ratatui::crossterm::event::{self, poll, Event, KeyCode, KeyModifiers};
 use ratatui::layout::{Alignment, Constraint, Direction, Layout, Rect};
 use ratatui::style::{Style, Stylize};
-use ratatui::widgets::{Block, LineGauge, Padding, Paragraph};
+use ratatui::widgets::{Block, Padding, Paragraph};
 use ratatui::Terminal;
+use std::collections::HashMap;
 use std::io::{Cursor, Stdout, Write};
-use std::time::{Duration, Instant};
+use std::time::Instant;
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub enum TimeBarLength {
-    Minute,
-    Hour,
-    Custom(i128),
-    /// implementing a bar that would grow smaller would be weird, so it's a count up instead of
-    /// a countdown
-    Countup(i128),
-    Day,
-}
-
-impl TimeBarLength {
-    pub(crate) const fn as_secs(self) -> i128 {
-        match self {
-            Self::Minute => 60,
-            Self::Day => 24 * 60 * 60,
-            Self::Hour => 60 * 60,
-            Self::Custom(secs) | Self::Countup(secs) => secs,
-        }
-    }
-}
-
-impl Default for TimeBarLength {
-    fn default() -> Self {
-        Self::Minute
-    }
-}
+pub mod timebar;
+pub mod ui;
+use timebar::TimeBarLength;
+use ui::Data;
 
 /// Make your terminal into a big clock
 #[derive(Parser, Debug, Clone)]
 #[command(help_template = HELP_TEMPLATE, author, version)]
-#[clap(group( ArgGroup::new("timebarlen") .args(&["minute","day", "hour", "custom", "countdown"]),))]
+#[clap(group( ArgGroup::new("timebarlen") .args(&["minute","day", "hour", "custom", "countdown", "timer"]),))]
 #[allow(clippy::struct_excessive_bools)] // the struct is for cli parsing and we already use an
                                          // ArgGroup
 pub struct Clock {
@@ -78,7 +61,8 @@ pub struct Clock {
     #[clap(short = 'u', long, value_parser = humantime::parse_duration)]
     pub countdown: Option<std::time::Duration>,
     /// Play a notification sound when the countdown is up
-    #[clap(short, long)]
+    #[cfg(feature = "sound")]
+    #[clap(short, long, default_value_t = true)]
     pub sound: bool,
 
     // internal variables
@@ -88,56 +72,6 @@ pub struct Clock {
     pub(crate) did_notify: bool,
 }
 
-#[derive(Debug, Clone, PartialEq, Default)]
-pub struct UiData {
-    fdate: [String; 2],
-    ftime: [String; 2],
-    timebar_ratio: [Option<f64>; 2],
-
-    data_idx: usize,
-}
-
-impl UiData {
-    pub fn update(&mut self, fdate: String, ftime: String, timebar_ratio: Option<f64>) {
-        self.data_idx ^= 1;
-        self.fdate[self.data_idx] = fdate;
-        self.ftime[self.data_idx] = ftime;
-        self.timebar_ratio[self.data_idx] = timebar_ratio;
-        #[cfg(debug_assertions)]
-        if self.changed() {
-            trace!("update with change: {:#?}", self);
-        }
-    }
-
-    /// did the data change with the last update?
-    #[must_use]
-    #[inline]
-    pub fn changed(&self) -> bool {
-        //  the timebar ratio is discarded, so that we only render the ui when the time
-        //  (second) changes
-        self.fdate[0] != self.fdate[1] || self.ftime[0] != self.ftime[1]
-    }
-
-    #[must_use]
-    #[inline]
-    pub fn fdate(&self) -> &str {
-        &self.fdate[self.data_idx]
-    }
-
-    #[must_use]
-    #[inline]
-    pub fn ftime(&self) -> &str {
-        &self.ftime[self.data_idx]
-    }
-
-    #[must_use]
-    #[inline]
-    #[allow(clippy::missing_const_for_fn)] // no it's not const
-    pub fn timebar_ratio(&self) -> Option<f64> {
-        self.timebar_ratio[self.data_idx]
-    }
-}
-
 impl Clock {
     #[must_use]
     #[allow(clippy::missing_const_for_fn)]
@@ -148,14 +82,14 @@ impl Clock {
             Some(TimeBarLength::Day)
         } else if self.hour {
             Some(TimeBarLength::Hour)
+        } else if self.timer {
+            Some(TimeBarLength::Timer)
         } else if self.countdown.is_some() {
-            Some(TimeBarLength::Countup(i128::from(
-                self.countdown.unwrap().as_secs(),
-            )))
+            Some(TimeBarLength::Countup(
+                self.countdown.unwrap().as_secs() as i64
+            ))
         } else if self.custom.is_some() {
-            Some(TimeBarLength::Custom(i128::from(
-                self.custom.unwrap().as_secs(),
-            )))
+            Some(TimeBarLength::Custom(self.custom.unwrap().as_secs() as i64))
         } else {
             None
         }
@@ -179,31 +113,47 @@ impl Clock {
         if let Some(len) = self.timebar_len() {
             let since_last_reset = Local::now().signed_duration_since(self.last_reset.unwrap());
             match len {
-                TimeBarLength::Countup(_) => {
+                TimeBarLength::Countup(_) | TimeBarLength::Timer => {
                     // the count up should not reset. If the time is over, just keep it at 100%
                 }
                 TimeBarLength::Custom(_) => {
-                    if since_last_reset.num_seconds() >= 1
-                        && i128::from(since_last_reset.num_seconds()) >= len.as_secs()
+                    // BUG: this is not consistent, sometimes leads to wrong seconds
+                    if since_last_reset.num_milliseconds() >= 100
+                        && since_last_reset.num_seconds() >= len.as_secs()
                     {
-                        self.last_reset = Some(Local::now());
+                        self.last_reset = Some(Local::now().round_subsecs(0));
                     }
                 }
                 TimeBarLength::Minute => {
                     if since_last_reset.num_seconds() >= 1 && Local::now().second() == 0 {
-                        self.last_reset = Some(Local::now());
+                        self.last_reset = Some(
+                            Local::now()
+                                .round_subsecs(0)
+                                .with_second(1)
+                                .expect("tried to use a time that does not exist"),
+                        );
                         debug!("reset the time of the time bar (minute)");
                     }
                 }
                 TimeBarLength::Hour => {
                     if since_last_reset.num_minutes() >= 1 && Local::now().minute() == 0 {
-                        self.last_reset = Some(Local::now());
+                        self.last_reset = Some(
+                            Local::now()
+                                .round_subsecs(0)
+                                .with_second(1)
+                                .expect("tried to use a time that does not exist"),
+                        );
                         debug!("reset the time of the time bar (hour)");
                     }
                 }
                 TimeBarLength::Day => {
                     if since_last_reset.num_hours() >= 1 && Local::now().hour() == 0 {
-                        self.last_reset = Some(Local::now());
+                        self.last_reset = Some(
+                            Local::now()
+                                .round_subsecs(0)
+                                .with_second(1)
+                                .expect("tried to use a time that does not exist"),
+                        );
                         debug!("reset the time of the time bar (day)");
                     }
                 }
@@ -215,19 +165,23 @@ impl Clock {
         if let Some(len) = self.timebar_len() {
             trace!("Local Time: {}", Local::now());
             match len {
-                TimeBarLength::Custom(_) | TimeBarLength::Countup(_) => {
+                TimeBarLength::Custom(_) | TimeBarLength::Countup(_) | TimeBarLength::Timer => {
                     self.last_reset = Some(Local::now());
                 }
                 TimeBarLength::Minute => {
                     self.last_reset = Some(
                         Local::now()
-                            .with_second(0)
+                            .round_subsecs(0)
+                            .with_second(1)
                             .expect("tried to use a time that does not exist"),
                     );
                 }
                 TimeBarLength::Hour => {
                     self.last_reset = Some(
                         Local::now()
+                            .round_subsecs(0)
+                            .with_second(1)
+                            .expect("tried to use a time that does not exist")
                             .with_minute(0)
                             .expect("tried to use a time that does not exist"),
                     );
@@ -235,6 +189,11 @@ impl Clock {
                 TimeBarLength::Day => {
                     self.last_reset = Some(
                         Local::now()
+                            .round_subsecs(0)
+                            .with_second(1)
+                            .expect("tried to use a time that does not exist")
+                            .with_minute(0)
+                            .expect("tried to use a time that does not exist")
                             .with_hour(0)
                             .expect("tried to use a time that does not exist"),
                     );
@@ -261,9 +220,9 @@ impl Clock {
         mut self,
         terminal: &mut Terminal<CrosstermBackend<Stdout>>,
     ) -> anyhow::Result<()> {
-        let tick_rate = Duration::from_millis(100);
+        let tick_rate = std::time::Duration::from_millis(100);
         let mut last_tick = Instant::now();
-        let mut uidata: UiData = UiData::default();
+        let mut uidata: Data = Data::new(self.timebar_len());
         self.setup()?;
         loop {
             let raw_time = chrono::Local::now().round_subsecs(0);
@@ -290,10 +249,12 @@ impl Clock {
             // 01:30 is 50%, 01:59 is 98%, 01:60 does not exist because that's how counting from
             // 0 works.
 
+            let now = raw_time + chrono::Duration::seconds(1);
             uidata.update(
+                now,
                 splits[0].clone(),
                 splits[1].clone(),
-                self.timebar_ratio(raw_time + chrono::Duration::seconds(1)),
+                self.timebar_ratio(now),
             );
             if uidata.changed() {
                 self.ui(terminal, &uidata)?;
@@ -319,10 +280,11 @@ impl Clock {
     fn on_tick(&mut self) {
         self.maybe_reset_since_zero();
     }
+    #[allow(clippy::cast_possible_truncation)] // if we have that much padding, please truncate
     fn ui(
         &mut self,
         terminal: &mut Terminal<CrosstermBackend<Stdout>>,
-        data: &UiData,
+        data: &Data,
     ) -> anyhow::Result<()> {
         terminal.draw(|frame| {
             debug!("rendering the ui");
@@ -338,12 +300,12 @@ impl Clock {
                 .title_bottom(env!("CARGO_PKG_VERSION"))
                 .title_alignment(Alignment::Center)
                 .title_style(Style::new().bold());
-            let a = space.inner(root);
+            let inner_rect = space.inner(root);
             frame.render_widget(space, root);
-            let parts = Self::partition(a);
+            let parts = Self::partition(inner_rect);
 
             let mut clockw = tui_big_text::BigText::builder();
-            if a.width > 80 {
+            if inner_rect.width > 80 {
                 clockw.pixel_size(tui_big_text::PixelSize::Full);
             } else {
                 clockw.pixel_size(tui_big_text::PixelSize::Quadrant);
@@ -359,52 +321,24 @@ impl Clock {
             // render the timebar which counts up to the full minute and so on
             //
             // Will not be rendered if it is None
-            let timebarw: Option<LineGauge> = if self.timebar_len().is_some() {
-                debug!("time bar ration: {:?}", data.timebar_ratio());
-                let ratio = data.timebar_ratio().unwrap();
-
-                if !self.did_notify && (ratio - 1.0).abs() < 0.000_001 {
-                    if let Some(TimeBarLength::Countup(_)) = self.timebar_len() {
-                        let _ = self.notify().inspect_err(|e| {
-                            error!("could not notify: {e}");
-                            debug!("complete error: {e:#?}");
-                        });
-                        self.did_notify = true;
-                    }
-                }
-
-                let timebarw = LineGauge::default()
-                    .filled_style(if self.did_notify {
-                        Style::default()
-                            .slow_blink()
-                            .bold()
-                            .underlined()
-                            .yellow()
-                            .crossed_out()
-                    } else {
-                        Style::default().blue()
-                    })
-                    .unfilled_style(Style::default())
-                    .block(Block::default().padding(Padding::right(if a.width > 80 {
-                        (f32::from(parts[2].width) * 0.43) as u16
-                    } else {
-                        (f32::from(parts[2].width) * 0.25) as u16
-                    })))
-                    .ratio(ratio);
-                Some(timebarw)
-            } else {
-                None
-            };
+            let timebarw_padding = [
+                (f32::from(parts["timebarw"].width) * 0.43) as u16,
+                (f32::from(parts["timebarw"].width) * 0.25) as u16,
+            ];
+            let timebarw = ui::timebarw(self, data, &timebarw_padding, inner_rect);
+            let timebarw_label: Option<Paragraph> =
+                ui::timebarw_label(self, data, &timebarw_padding, inner_rect);
 
             // render the small date
             let datew = Paragraph::new(data.fdate())
                 .blue()
                 .block(Block::default().padding(Padding::right(2)))
                 .alignment(Alignment::Right);
-            frame.render_widget(&timebarw, parts[2]);
-            frame.render_widget(datew, parts[1]);
+            frame.render_widget(&timebarw, parts["timebarw"]);
+            frame.render_widget(&timebarw_label, parts["timebarw_label"]);
+            frame.render_widget(datew, parts["datew"]);
             // render the clock
-            frame.render_widget(clockw, parts[0]);
+            frame.render_widget(clockw, parts["clockw"]);
         })?;
         debug!("done rendering the ui");
         Ok(())
@@ -445,9 +379,6 @@ impl Clock {
             // NOTE: sadly, notify_rust does not (yet) support KDE plasma, because
             // they have a weird way of making sounds and notifications in general
             // work. At least we get a little notification.
-            //
-            // TODO: add something to make a sound without the notification system,
-            // as that is not reliable but the user might depend on it.
 
             // only play this when we don't use built in sound, this
             // isn't as consistent
@@ -481,7 +412,7 @@ impl Clock {
         std::io::stdout().flush()?;
         Ok(())
     }
-    fn partition(r: Rect) -> Vec<Rect> {
+    fn partition(r: Rect) -> HashMap<&'static str, Rect> {
         let part = Layout::default()
             .direction(Direction::Vertical)
             .constraints([
@@ -489,7 +420,9 @@ impl Clock {
                 Constraint::Length(if r.width > 80 { 8 } else { 5 }),
             ])
             .split(r);
-        let hlen_date: u16 = (f32::from(part[1].width) * 0.35) as u16;
+        #[allow(clippy::cast_sign_loss)]
+        #[allow(clippy::cast_possible_truncation)]
+        let hlen_date: u16 = (f32::from(part[1].width) * 0.32) as u16;
         let subparts = Layout::default()
             .direction(Direction::Horizontal)
             .constraints([
@@ -498,6 +431,16 @@ impl Clock {
             ])
             .split(part[0]);
 
-        vec![part[1], subparts[0], subparts[1]]
+        let timebarw_spaces = Layout::default()
+            .direction(Direction::Vertical)
+            .constraints([Constraint::Length(1), Constraint::Length(1)])
+            .split(subparts[1]);
+
+        HashMap::from([
+            ("clockw", part[1]),
+            ("timebarw", timebarw_spaces[0]),
+            ("timebarw_label", timebarw_spaces[1]),
+            ("datew", subparts[0]),
+        ])
     }
 }

src/clock/timebar.rs

@@ -0,0 +1,71 @@
+use std::fmt::Display;
+
+use chrono::Duration;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum TimeBarLength {
+    Timer,
+    Minute,
+    Hour,
+    Custom(i64),
+    /// implementing a bar that would grow smaller would be weird, so it's a count up instead of
+    /// a countdown
+    Countup(i64),
+    Day,
+}
+
+impl TimeBarLength {
+    pub(crate) const fn as_secs(self) -> i64 {
+        match self {
+            Self::Minute => 60,
+            Self::Day => 24 * 60 * 60,
+            Self::Hour => 60 * 60,
+            Self::Timer => 1,
+            Self::Custom(secs) | Self::Countup(secs) => secs,
+        }
+    }
+}
+
+impl From<TimeBarLength> for chrono::Duration {
+    fn from(value: TimeBarLength) -> Self {
+        Self::new(value.as_secs(), 0).expect("seconds out of bounds, cannot create duration")
+    }
+}
+
+impl Default for TimeBarLength {
+    fn default() -> Self {
+        Self::Minute
+    }
+}
+
+impl Display for TimeBarLength {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        if *self == Self::Timer {
+            return write!(f, "");
+        }
+        let buf = match self {
+            Self::Minute => humantime::Duration::from(
+                Duration::minutes(1)
+                    .to_std()
+                    .expect("could not convert chrono time to std time"),
+            ),
+            Self::Hour => humantime::Duration::from(
+                Duration::hours(1)
+                    .to_std()
+                    .expect("could not convert chrono time to std time"),
+            ),
+            Self::Day => humantime::Duration::from(
+                Duration::days(1)
+                    .to_std()
+                    .expect("could not convert chrono time to std time"),
+            ),
+            Self::Custom(secs) | Self::Countup(secs) => humantime::Duration::from(
+                Duration::seconds(*secs)
+                    .to_std()
+                    .expect("could not convert chrono time to std time"),
+            ),
+            Self::Timer => unreachable!(),
+        };
+        write!(f, "{buf}")
+    }
+}

src/clock/ui.rs

@@ -0,0 +1,221 @@
+use chrono::{DateTime, Local, SubsecRound, Timelike};
+use libpt::log::{debug, error, trace};
+use ratatui::layout::{Alignment, Rect};
+use ratatui::style::{Style, Stylize};
+use ratatui::widgets::{Block, LineGauge, Padding, Paragraph};
+
+use crate::clock::timebar::TimeBarLength;
+
+use super::Clock;
+
+pub const TIME_FORMAT: &str = "%H:%M:%S";
+pub const TIME_FORMAT_SHORT: &str = "%H:%M";
+
+// TODO: make this a ringbuffer with a custom struct inside?
+#[derive(Debug, Clone, PartialEq)]
+pub struct Data {
+    now: [DateTime<Local>; 2],
+    fdate: [String; 2],
+    ftime: [String; 2],
+    timebar_ratio: [Option<f64>; 2],
+
+    timebar_type: Option<TimeBarLength>,
+    started_at: DateTime<Local>,
+
+    idx: usize,
+}
+
+impl Data {
+    pub fn new(timebar_type: Option<TimeBarLength>) -> Self {
+        let mut this = Self {
+            now: [DateTime::default(); 2],
+            fdate: [String::new(), String::new()],
+            ftime: [String::new(), String::new()],
+            timebar_ratio: [Option::default(); 2],
+            started_at: Local::now(),
+            idx: usize::default(),
+
+            timebar_type,
+        };
+        this.started_at = this.started_at.round_subsecs(0);
+        this
+    }
+    pub fn update(
+        &mut self,
+        now: DateTime<Local>,
+        fdate: String,
+        ftime: String,
+        timebar_ratio: Option<f64>,
+    ) {
+        self.idx ^= 1;
+        self.now[self.idx] = now;
+        self.fdate[self.idx] = fdate;
+        self.ftime[self.idx] = ftime;
+        self.timebar_ratio[self.idx] = timebar_ratio;
+        #[cfg(debug_assertions)]
+        if self.changed() {
+            trace!("update with change: {:#?}", self);
+        }
+    }
+
+    /// did the data change with the last update?
+    #[must_use]
+    #[inline]
+    pub fn changed(&self) -> bool {
+        //  the timebar ratio is discarded, so that we only render the ui when the time
+        //  (second) changes
+        self.fdate[0] != self.fdate[1] || self.ftime[0] != self.ftime[1]
+    }
+
+    #[must_use]
+    #[inline]
+    pub fn fdate(&self) -> &str {
+        &self.fdate[self.idx]
+    }
+
+    #[must_use]
+    #[inline]
+    pub fn ftime(&self) -> &str {
+        &self.ftime[self.idx]
+    }
+
+    #[must_use]
+    #[inline]
+    #[allow(clippy::missing_const_for_fn)] // why should it be okay to make this const? This is
+                                           // a custom ringbuffer!
+    pub fn now(&self) -> &DateTime<Local> {
+        &self.now[self.idx]
+    }
+
+    #[must_use]
+    #[inline]
+    #[allow(clippy::missing_const_for_fn)] // no it's not const
+    pub fn timebar_ratio(&self) -> Option<f64> {
+        if self.timebar_type.is_some() && self.timebar_type.unwrap() == TimeBarLength::Timer {
+            return Some(0.0);
+        }
+        self.timebar_ratio[self.idx]
+    }
+}
+
+pub fn timebarw<'a>(
+    clock: &mut Clock,
+    data: &Data,
+    timebarw_padding: &[u16],
+    inner_rect: Rect,
+) -> Option<LineGauge<'a>> {
+    if clock.timebar_len().is_some() {
+        debug!("time bar ration: {:?}", data.timebar_ratio());
+        let ratio = data.timebar_ratio().unwrap();
+
+        if !clock.did_notify && (ratio - 1.0).abs() < 0.000_001 {
+            if let Some(TimeBarLength::Countup(_)) = clock.timebar_len() {
+                let _ = clock.notify().inspect_err(|e| {
+                    error!("could not notify: {e}");
+                    debug!("complete error: {e:#?}");
+                });
+                clock.did_notify = true;
+            }
+        }
+
+        #[allow(clippy::cast_sign_loss)]
+        #[allow(clippy::cast_possible_truncation)]
+        let timebarw = LineGauge::default()
+            .filled_style(if clock.did_notify {
+                Style::default()
+                    .slow_blink()
+                    .bold()
+                    .underlined()
+                    .yellow()
+                    .crossed_out()
+            } else {
+                Style::default().blue()
+            })
+            .unfilled_style(Style::default())
+            .block(
+                Block::default().padding(Padding::right(if inner_rect.width > 80 {
+                    timebarw_padding[0]
+                } else {
+                    timebarw_padding[1]
+                })),
+            )
+            .ratio(ratio);
+        Some(timebarw)
+    } else {
+        None
+    }
+}
+
+pub fn timebarw_label<'a>(
+    clock: &Clock,
+    data: &Data,
+    timebarw_padding: &[u16],
+    inner_rect: Rect,
+) -> Option<Paragraph<'a>> {
+    clock.timebar_len().map(|len| {
+        let last_reset = clock.last_reset.unwrap().round_subsecs(0);
+        let time_now = match clock.timebar_len().unwrap() {
+            TimeBarLength::Countup(secs) => {
+                if clock.did_notify {
+                    humantime::Duration::from(chrono::Duration::seconds(secs).to_std().unwrap())
+                } else {
+                    humantime::Duration::from(
+                        data.now()
+                            .round_subsecs(0)
+                            .signed_duration_since(last_reset)
+                            .to_std()
+                            .unwrap(),
+                    )
+                }
+            }
+            TimeBarLength::Hour => humantime::Duration::from(
+                data.now()
+                    .signed_duration_since(last_reset)
+                    .to_std()
+                    .unwrap(),
+            ),
+            _ => humantime::Duration::from(
+                data.now()
+                    .round_subsecs(0)
+                    .signed_duration_since(last_reset)
+                    .to_std()
+                    .unwrap(),
+            ),
+        };
+        let until = {
+            // we need to cut off the seconds if we're not in custom and countup mode, otherwise,
+            // the timestamp will not be correct. This fixes #17
+            match len {
+                TimeBarLength::Custom(_) | TimeBarLength::Countup(_) => last_reset,
+                _ => last_reset.with_second(0).unwrap(),
+            }
+        }
+        // BUG: seconds are sometimes a little too much, for
+        // example with `-o` #17
+        .checked_add_signed(len.into())
+        .expect("could not calculate when the countdown finishes")
+        .format(TIME_FORMAT_SHORT);
+
+        let text: String = match clock.timebar_len().unwrap() {
+            TimeBarLength::Timer => format!("{} + {time_now}", data.started_at.format(TIME_FORMAT)),
+            TimeBarLength::Countup(_) | TimeBarLength::Custom(_) => format!(
+                "{time_now} / {len} | {} -> {until}",
+                last_reset.format(TIME_FORMAT_SHORT)
+            ),
+            _ => format!(
+                "{time_now} / {len} | {} -> {until}",
+                last_reset.with_second(0).unwrap().format(TIME_FORMAT_SHORT)
+            ),
+        };
+
+        Paragraph::new(text)
+            .alignment(Alignment::Center)
+            .block(
+                Block::default().padding(Padding::right(if inner_rect.width > 80 {
+                    timebarw_padding[0]
+                } else {
+                    timebarw_padding[1]
+                })),
+            )
+    })
+}

src/main.rs

@@ -1,3 +1,5 @@
+#![allow(missing_docs)] // this is not a library crate
+
 use std::io;
 
 use libpt::cli::clap::Parser;
@@ -15,6 +17,13 @@ use self::clock::Clock;
 mod clock;
 
 fn main() -> anyhow::Result<()> {
+    human_panic::setup_panic!(human_panic::Metadata::new(
+        env!("CARGO_BIN_NAME"),
+        env!("CARGO_PKG_VERSION")
+    )
+    .authors(env!("CARGO_PKG_AUTHORS"))
+    .homepage(env!("CARGO_PKG_HOMEPAGE")));
+
     // setup the cli
     let clock = Clock::parse();
     if clock.verbose.level() >= Level::DEBUG {
@@ -63,7 +72,7 @@ fn mock_tests() {
     use chrono::{Local, Timelike};
     use libpt::log::info;
 
-    use self::clock::UiData;
+    use crate::clock::ui::Data;
     info!("doing the mock tests");
     {
         let mut c = Clock::parse_from(["some exec", "-mvvv"]);
@@ -81,12 +90,13 @@ fn mock_tests() {
         info!("0s=0.0");
     }
     {
-        let mut data = UiData::default();
-        data.update("date".to_owned(), "time".to_owned(), Some(0.1));
+        let mut data = Data::new(None);
+        let now = Local::now();
+        data.update(now, "date".to_owned(), "time".to_owned(), Some(0.1));
         assert_eq!(data.timebar_ratio(), Some(0.1));
-        data.update("date".to_owned(), "time".to_owned(), Some(0.2));
+        data.update(now, "date".to_owned(), "time".to_owned(), Some(0.2));
         assert_eq!(data.timebar_ratio(), Some(0.2));
-        data.update("date".to_owned(), "time".to_owned(), Some(0.3));
+        data.update(now, "date".to_owned(), "time".to_owned(), Some(0.3));
         assert_eq!(data.timebar_ratio(), Some(0.3));
     }
     info!("finished the mock tests");