From 1aa9ba0e2f28f564ee118b0b61d68a7fc66d3ca1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20K=C3=B6ll?= <fabian.koell@enio.at>
Date: Sun, 22 Jun 2025 16:51:48 +0200
Subject: [PATCH] feat: japanese walking

A simple interval timer promoting alternating brisk and easy walking to boost fitness.

- add
    - Configurable interval and total time
    - Choice of start mode (Relax/Intense)
    - Vibration alerts for mode change & completion
	    - Adjustable buzzertime
    - Pause/resume with a tap
    - Displays current time and time left
	    - Enable/disable clock in setting
    - Close app with button/tap at the end
    - While screen is locked only update screen on mode change
        - And every time the clock changes
		- Can be changed to updating every second in settings
---
 apps/jwalk/README.md      |  21 +++++
 apps/jwalk/app-icon.js    |   1 +
 apps/jwalk/app.js         | 178 ++++++++++++++++++++++++++++++++++++++
 apps/jwalk/app.png        | Bin 0 -> 6426 bytes
 apps/jwalk/metadata.json  |  19 ++++
 apps/jwalk/screenshot.png | Bin 0 -> 5615 bytes
 apps/jwalk/settings.js    |  65 ++++++++++++++
 7 files changed, 284 insertions(+)
 create mode 100644 apps/jwalk/README.md
 create mode 100644 apps/jwalk/app-icon.js
 create mode 100644 apps/jwalk/app.js
 create mode 100644 apps/jwalk/app.png
 create mode 100644 apps/jwalk/metadata.json
 create mode 100644 apps/jwalk/screenshot.png
 create mode 100644 apps/jwalk/settings.js

diff --git a/apps/jwalk/README.md b/apps/jwalk/README.md
new file mode 100644
index 000000000..96383a211
--- /dev/null
+++ b/apps/jwalk/README.md
@@ -0,0 +1,21 @@
+# Japanese Walking Timer
+
+A simple timer designed to help you manage your walking intervals, whether you're in a relaxed mode or an intense workout!
+
+![](screenshot.png)
+
+## Usage
+
+- The timer starts with a default total duration and interval duration, which can be adjusted in the settings.
+- Tap the screen to pause or resume the timer.
+- The timer will switch modes between "Relax" and "Intense" at the end of each interval.
+- The display shows the current time, the remaining interval time, and the total time left.
+
+## Creator
+
+[Fabian Köll] ([Koell](https://github.com/Koell))
+
+
+## Icon
+
+[Icon](https://www.koreanwikiproject.com/wiki/images/2/2f/%E8%A1%8C.png)
\ No newline at end of file
diff --git a/apps/jwalk/app-icon.js b/apps/jwalk/app-icon.js
new file mode 100644
index 000000000..405359b5a
--- /dev/null
+++ b/apps/jwalk/app-icon.js
@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("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"))
\ No newline at end of file
diff --git a/apps/jwalk/app.js b/apps/jwalk/app.js
new file mode 100644
index 000000000..2a29bcd7f
--- /dev/null
+++ b/apps/jwalk/app.js
@@ -0,0 +1,178 @@
+// === Utility Functions ===
+function formatTime(seconds) {
+  let mins = Math.floor(seconds / 60);
+  let secs = (seconds % 60).toString().padStart(2, '0');
+  return `${mins}:${secs}`;
+}
+
+function getTimeStr() {
+  let d = new Date();
+  return `${d.getHours().toString().padStart(2, '0')}:${d.getMinutes().toString().padStart(2, '0')}`;
+}
+
+function updateCachedLeftTime() {
+  cachedLeftTime = "Left: " + formatTime(state.remainingTotal);
+}
+
+// === Constants ===
+const FILE = "jwalk.json";
+const DEFAULTS = {
+  totalDuration: 30,
+  intervalDuration: 3,
+  startMode: 0,
+  modeBuzzerDuration: 1000,
+  finishBuzzerDuration: 1500,
+  showClock: 1,
+  updateWhileLocked: 0
+};
+
+// === Settings and State ===
+let settings = require("Storage").readJSON(FILE, 1) || DEFAULTS;
+
+let state = {
+  remainingTotal: settings.totalDuration * 60,
+  intervalDuration: settings.intervalDuration * 60,
+  remainingInterval: 0,
+  intervalEnd: 0,
+  paused: false,
+  currentMode: settings.startMode === 1 ? "Intense" : "Relax",
+  finished: false,
+  forceDraw: false,
+};
+
+let cachedLeftTime = "";
+let lastMinuteStr = getTimeStr();
+let drawTimerInterval;
+
+// === UI Rendering ===
+function drawUI() {
+  let y = Bangle.appRect.y + 8;
+  g.reset().setBgColor(g.theme.bg).clearRect(Bangle.appRect);
+  g.setColor(g.theme.fg);
+
+  let displayInterval = state.paused
+    ? state.remainingInterval
+    : Math.max(0, Math.floor((state.intervalEnd - Date.now()) / 1000));
+
+  g.setFont("Vector", 40);
+  g.setFontAlign(0, 0);
+  g.drawString(formatTime(displayInterval), g.getWidth() / 2, y + 70);
+
+  let cy = y + 100;
+  if (state.paused) {
+    g.setFont("Vector", 15);
+    g.drawString("PAUSED", g.getWidth() / 2, cy);
+  } else {
+    let cx = g.getWidth() / 2;
+    g.setColor(g.theme.accent || g.theme.fg2 || g.theme.fg);
+    if (state.currentMode === "Relax") {
+      g.fillCircle(cx, cy, 5);
+    } else {
+      g.fillPoly([
+        cx, cy - 6,
+        cx - 6, cy + 6,
+        cx + 6, cy + 6
+      ]);
+    }
+    g.setColor(g.theme.fg);
+  }
+
+  g.setFont("6x8", 2);
+  g.setFontAlign(0, -1);
+  g.drawString(state.currentMode, g.getWidth() / 2, y + 15);
+  g.drawString(cachedLeftTime, g.getWidth() / 2, cy + 15);
+
+  if (settings.showClock) {
+    g.setFontAlign(1, 0);
+    g.drawString(lastMinuteStr, g.getWidth() - 4, y);
+  }
+  g.flip();
+}
+
+// === Workout Logic ===
+function toggleMode() {
+  state.currentMode = state.currentMode === "Relax" ? "Intense" : "Relax";
+  Bangle.buzz(settings.modeBuzzerDuration);
+  state.forceDraw = true;
+}
+
+function startNextInterval() {
+  if (state.remainingTotal <= 0) {
+    finishWorkout();
+    return;
+  }
+
+  state.remainingInterval = Math.min(state.intervalDuration, state.remainingTotal);
+  state.remainingTotal -= state.remainingInterval;
+  updateCachedLeftTime();
+  state.intervalEnd = Date.now() + state.remainingInterval * 1000;
+  state.forceDraw = true;
+}
+
+function togglePause() {
+  if (state.finished) return;
+
+  if (!state.paused) {
+    state.remainingInterval = Math.max(0, Math.floor((state.intervalEnd - Date.now()) / 1000));
+    state.paused = true;
+  } else {
+    state.intervalEnd = Date.now() + state.remainingInterval * 1000;
+    state.paused = false;
+  }
+  drawUI();
+}
+
+function finishWorkout() {
+  clearInterval(drawTimerInterval);
+  Bangle.buzz(settings.finishBuzzerDuration);
+  state.finished = true;
+
+  setTimeout(() => {
+    g.clear();
+    g.setFont("Vector", 30);
+    g.setFontAlign(0, 0);
+    g.drawString("Well done!", g.getWidth() / 2, g.getHeight() / 2);
+    g.flip();
+
+    const exitHandler = () => {
+      Bangle.removeListener("touch", exitHandler);
+      Bangle.removeListener("btn1", exitHandler);
+      load(); // Exit app
+    };
+
+    Bangle.on("touch", exitHandler);
+    setWatch(exitHandler, BTN1, { repeat: false });
+  }, 500);
+}
+
+// === Timer Tick ===
+function tick() {
+  if (state.finished) return;
+
+  const currentMinuteStr = getTimeStr();
+  if (currentMinuteStr !== lastMinuteStr) {
+    lastMinuteStr = currentMinuteStr;
+    state.forceDraw = true;
+  }
+
+  if (!state.paused && (state.intervalEnd - Date.now()) / 1000 <= 0) {
+    toggleMode();
+    startNextInterval();
+    return;
+  }
+
+  if (state.forceDraw || settings.updateWhileLocked || !Bangle.isLocked()) {
+    drawUI();
+    state.forceDraw = false;
+  }
+}
+
+// === Initialization ===
+Bangle.on("touch", togglePause);
+Bangle.loadWidgets();
+Bangle.drawWidgets();
+
+updateCachedLeftTime();
+startNextInterval();
+drawUI();
+drawTimerInterval = setInterval(tick, 1000);
\ No newline at end of file
diff --git a/apps/jwalk/app.png b/apps/jwalk/app.png
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diff --git a/apps/jwalk/metadata.json b/apps/jwalk/metadata.json
new file mode 100644
index 000000000..71035df61
--- /dev/null
+++ b/apps/jwalk/metadata.json
@@ -0,0 +1,19 @@
+{
+  "id": "jwalk",
+  "name": "Japanese Walking",
+  "shortName": "J-Walk",
+  "icon": "app.png",
+  "version": "0.01",
+  "description": "Alternating walk timer: 3 min Relax / 3 min Intense for a set time. Tap to pause/resume. Start mode, interval and total time configurable via Settings.",
+  "tags": "walk,timer,fitness",
+  "supports": ["BANGLEJS","BANGLEJS2"],
+  "readme": "README.md",
+  "data": [
+    { "name": "jwalk.json" }
+  ],
+  "storage": [
+    { "name": "jwalk.app.js", "url": "app.js" },
+    { "name": "jwalk.settings.js", "url": "settings.js" },
+    { "name": "jwalk.img", "url": "app-icon.js", "evaluate": true }
+  ]
+}
\ No newline at end of file
diff --git a/apps/jwalk/screenshot.png b/apps/jwalk/screenshot.png
new file mode 100644
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diff --git a/apps/jwalk/settings.js b/apps/jwalk/settings.js
new file mode 100644
index 000000000..553f65213
--- /dev/null
+++ b/apps/jwalk/settings.js
@@ -0,0 +1,65 @@
+(function (back) {
+  const FILE = "jwalk.json";
+  const DEFAULTS = {
+    totalDuration: 30,
+    intervalDuration: 3,
+    startMode: 0,
+    modeBuzzerDuration: 1000,
+    finishBuzzerDuration: 1500,
+    showClock: 1,
+    updateWhileLocked: 0
+  };
+
+  let settings = require("Storage").readJSON(FILE, 1) || DEFAULTS;
+
+  function saveSettings() {
+    require("Storage").writeJSON(FILE, settings);
+  }
+
+  function showSettingsMenu() {
+    E.showMenu({
+      '': { title: 'Japanese Walking' },
+      '< Back': back,
+      'Total Time (min)': {
+        value: settings.totalDuration,
+        min: 10, max: 60, step: 1,
+        onchange: v => { settings.totalDuration = v; saveSettings(); }
+      },
+      'Interval (min)': {
+        value: settings.intervalDuration,
+        min: 1, max: 10, step: 1,
+        onchange: v => { settings.intervalDuration = v; saveSettings(); }
+      },
+      'Start Mode': {
+        value: settings.startMode,
+        min: 0, max: 1,
+        format: v => v ? "Intense" : "Relax",
+        onchange: v => { settings.startMode = v; saveSettings(); }
+      },
+      'Display Clock': {
+        value: settings.showClock,
+        min: 0, max: 1,
+        format: v => v ? "Show" : "Hide" ,
+        onchange: v => { settings.showClock = v; saveSettings(); }
+      },
+      'Update UI While Locked': {
+        value: settings.updateWhileLocked,
+		min: 0, max: 1,
+        format: v => v ? "Always" : "On Change",
+        onchange: v => { settings.updateWhileLocked = v; saveSettings(); }
+      },
+      'Mode Buzz (ms)': {
+        value: settings.modeBuzzerDuration,
+        min: 0, max: 2000, step: 50,
+        onchange: v => { settings.modeBuzzerDuration = v; saveSettings(); }
+      },
+      'Finish Buzz (ms)': {
+        value: settings.finishBuzzerDuration,
+        min: 0, max: 5000, step: 100,
+        onchange: v => { settings.finishBuzzerDuration = v; saveSettings(); }
+      },
+    });
+  }
+
+  showSettingsMenu();
+})
\ No newline at end of file