From 9402124a3fd09aeefe2c536f0678a85d25f81d42 Mon Sep 17 00:00:00 2001
From: James Taylor <jt-git@nti.me.uk>
Date: Mon, 8 Jul 2024 19:00:00 +0100
Subject: [PATCH] splitsw: add new stopwatch app with split timer

Signed-off-by: James Taylor <jt-git@nti.me.uk>
---
 apps/splitsw/ChangeLog      |   1 +
 apps/splitsw/README.md      |  30 +++++++
 apps/splitsw/app-icon.js    |   1 +
 apps/splitsw/app.js         | 167 ++++++++++++++++++++++++++++++++++++
 apps/splitsw/app.png        | Bin 0 -> 1566 bytes
 apps/splitsw/metadata.json  |  16 ++++
 apps/splitsw/screenshot.png | Bin 0 -> 2927 bytes
 7 files changed, 215 insertions(+)
 create mode 100644 apps/splitsw/ChangeLog
 create mode 100644 apps/splitsw/README.md
 create mode 100644 apps/splitsw/app-icon.js
 create mode 100644 apps/splitsw/app.js
 create mode 100644 apps/splitsw/app.png
 create mode 100644 apps/splitsw/metadata.json
 create mode 100644 apps/splitsw/screenshot.png

diff --git a/apps/splitsw/ChangeLog b/apps/splitsw/ChangeLog
new file mode 100644
index 000000000..5560f00bc
--- /dev/null
+++ b/apps/splitsw/ChangeLog
@@ -0,0 +1 @@
+0.01: New App!
diff --git a/apps/splitsw/README.md b/apps/splitsw/README.md
new file mode 100644
index 000000000..5f8fbd54b
--- /dev/null
+++ b/apps/splitsw/README.md
@@ -0,0 +1,30 @@
+# Stopwatch with split times
+
+A basic stopwatch with support for split times.
+
+![](screenshot.png)
+
+## Features
+
+Implemented:
+
+- Start stopwatch
+- Stop stopwatch
+- Show split times
+- Reset stopwatch
+- Keep display unlocked
+
+Future:
+
+- Save state and restore running stopwatch when it reopens
+- View all split times
+- Duplicate Start/Stop and/or Reset/Split button on the physical button
+- Settings, e.g. what the physical button does, and whether to keep the backlight on
+
+## Creator
+
+James Taylor ([jt-nti](https://github.com/jt-nti))
+
+## Icons
+
+The same icons as apps/stopwatch! 
diff --git a/apps/splitsw/app-icon.js b/apps/splitsw/app-icon.js
new file mode 100644
index 000000000..32281b7ab
--- /dev/null
+++ b/apps/splitsw/app-icon.js
@@ -0,0 +1 @@
+require("heatshrink").decompress(atob("mEw4UA///vvvvEF/muH+cDHgPABf4AElWoKhILClALH1WqAQIWHBYIABwAKEgQKD1WgBYkK1X1r4XHlWtqtVvQLG1XVBYNXHYsC1YJBBoPqC4kKEQILCvQ7EhW1BYdeBYkqytVqwCCQwkqCgILCq4LFIoILCqoLEIwIsBGQJIBBZ+pA4Na0oDBtQLGvSFCBaYjIHYR3CI5AADBYhrCAAaDHAASDGQASGCBYizCAASzFZYQACZYrjCIwb7QHgIkCvQ6EGAWq+tf1QuEGAWqAAQuFEgQKBEQw9DHIwAuA="))
diff --git a/apps/splitsw/app.js b/apps/splitsw/app.js
new file mode 100644
index 000000000..5d70b471d
--- /dev/null
+++ b/apps/splitsw/app.js
@@ -0,0 +1,167 @@
+Bangle.loadWidgets();
+g.clear(true);
+Bangle.drawWidgets();
+
+Bangle.setLCDTimeout(undefined);
+
+let renderIntervalId;
+let startTime;
+let stopTime;
+let subtotal;
+let currentSplitNumber;
+let splitStartTime;
+let splitSubtotal;
+
+var Layout = require("Layout");
+var layout = new Layout( {
+  type:"v", c: [
+    {type:"txt", pad:4, font:"20%", label:"", id:"time", fillx:1},
+    {type:"h", c: [
+      {type:"btn", pad:4, font:"6x8:2", label:"Start", id:"startStop", cb: l=>startStop() },
+      {type:"btn", pad:4, font:"6x8:2", label:"Reset", id:"resetSplit", cb: l=>resetSplit() }
+    ]},
+    {
+      type:"v", pad:4, c: [
+        {type:"txt", font:"6x8:2", label:"", id:"split", fillx:1},
+        {type:"txt", font:"6x8:2", label:"", id:"prevSplit", fillx:1},
+    ]},
+  ]
+}, {
+  lazy: true,
+  back: load,
+});
+
+// TODO The code in this function appears in various apps so it might be
+// nice to add something to the time_utils module. (There is already a
+// formatDuration function but that doesn't quite work the same way.)
+const getTime = function(milliseconds) {
+  let hrs = Math.floor(milliseconds/3600000);
+  let mins = Math.floor(milliseconds/60000)%60;
+  let secs = Math.floor(milliseconds/1000)%60;
+  let tnth = Math.floor(milliseconds/100)%10;
+  let text;
+
+  if (hrs === 0) {
+    text = ("0"+mins).slice(-2) + ":" + ("0"+secs).slice(-2) + "." + tnth;
+  } else {
+    text = ("0"+hrs) + ":" + ("0"+mins).slice(-2) + ":" + ("0"+secs).slice(-2);
+  }
+
+  return text;
+};
+
+const renderIntervalCallback = function() {
+  if (startTime === undefined) {
+    return;
+  }
+
+  updateStopwatch();
+};
+
+const buzz = function() {
+  Bangle.buzz(50, 0.5);
+};
+
+const startStop = function() {
+  buzz();
+
+  if (layout.startStop.label === "Start") {
+    start();
+  } else {
+    stop();
+  }
+};
+
+const start = function() {
+  if (stopTime === undefined) {
+    startTime = Date.now();
+    splitStartTime = startTime;
+    subtotal = 0;
+    splitSubtotal = 0;
+    currentSplitNumber = 1;
+  } else {
+    subtotal += stopTime - startTime;
+    splitSubtotal += stopTime - splitStartTime;
+    startTime = Date.now();
+    splitStartTime = startTime;
+    stopTime = undefined;
+  }
+
+  layout.startStop.label = "Stop";
+  layout.resetSplit.label = "Split";
+  updateStopwatch();
+
+  renderIntervalId = setInterval(renderIntervalCallback, 100);
+};
+
+const stop = function() {
+  stopTime = Date.now();
+
+  layout.startStop.label = "Start";
+  layout.resetSplit.label = "Reset";
+  updateStopwatch();
+
+  if (renderIntervalId !== undefined) {
+    clearInterval(renderIntervalId);
+    renderIntervalId = undefined;
+  }
+};
+
+const resetSplit = function() {
+  buzz();
+
+  if (layout.resetSplit.label === "Reset") {
+    reset();
+  } else {
+    split();
+  }
+};
+
+const reset = function() {
+    layout.startStop.label = "Start";
+    layout.resetSplit.label = "Reset";
+    layout.split.label = "";
+    layout.prevSplit.label = "";
+
+    startTime = undefined;
+    stopTime = undefined;
+    subtotal = 0;
+    currentSplitNumber = 1;
+    splitStartTime = undefined;
+    splitSubtotal = 0;
+
+    updateStopwatch();
+};
+
+const split = function() {
+  const splitTime = Date.now() - splitStartTime + splitSubtotal;
+  layout.prevSplit.label = "#" + currentSplitNumber + " " + getTime(splitTime);
+
+  splitStartTime = Date.now();
+  splitSubtotal = 0;
+  currentSplitNumber++;
+
+  updateStopwatch();
+};
+
+const updateStopwatch = function() {
+  let elapsedTime;
+
+  if (startTime === undefined) {
+    elapsedTime = 0;
+  } else {
+    elapsedTime = Date.now() - startTime + subtotal;
+  }
+
+  layout.time.label = getTime(elapsedTime);
+
+  if (splitStartTime !== undefined) {
+    const splitTime = Date.now() - splitStartTime + splitSubtotal;
+    layout.split.label = "#" + currentSplitNumber + " " + getTime(splitTime);
+  }
+
+  layout.render();
+  // layout.debug();
+};
+
+updateStopwatch();
diff --git a/apps/splitsw/app.png b/apps/splitsw/app.png
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diff --git a/apps/splitsw/metadata.json b/apps/splitsw/metadata.json
new file mode 100644
index 000000000..d5ae19347
--- /dev/null
+++ b/apps/splitsw/metadata.json
@@ -0,0 +1,16 @@
+{ "id": "splitsw",
+  "name": "Stopwatch with split times",
+  "shortName":"Stopwatch",
+  "version":"0.01",
+  "description": "A basic stopwatch with support for split times",
+  "icon": "app.png",
+  "tags": "tool,outdoors,health",
+  "supports" : ["BANGLEJS2"],  
+  "readme": "README.md",
+  "screenshots": [{ "url": "screenshot.png" }],
+  "allow_emulator": true,
+  "storage": [
+    {"name":"splitsw.app.js","url":"app.js"},
+    {"name":"splitsw.img","url":"app-icon.js","evaluate":true}
+  ]
+}
diff --git a/apps/splitsw/screenshot.png b/apps/splitsw/screenshot.png
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