From 9c643f6b5dd584d84e0f75843eefb059e3d37407 Mon Sep 17 00:00:00 2001
From: Rob Pilling <robpilling@gmail.com>
Date: Sat, 8 Apr 2023 08:25:27 +0100
Subject: [PATCH] drained: configure battery% and check interval

---
 apps/drained/README.md     |  1 +
 apps/drained/boot.ts       |  7 +++++--
 apps/drained/metadata.json |  3 ++-
 apps/drained/settings.ts   | 37 +++++++++++++++++++++++++++++++++++++
 4 files changed, 45 insertions(+), 3 deletions(-)
 create mode 100644 apps/drained/settings.ts

diff --git a/apps/drained/README.md b/apps/drained/README.md
index 92924393a..da3f16ef8 100644
--- a/apps/drained/README.md
+++ b/apps/drained/README.md
@@ -7,6 +7,7 @@ With this app installed, your Bangle will automatically switch into low power mo
 ## Time
 - [x] Show simple date/time
 - [ ] Disable alarms - with a setting?
+- [ ] Smarter/backoff interval for checking battery percentage
 
 ## No backlight (#2502)
 - [x] LCD brightness
diff --git a/apps/drained/boot.ts b/apps/drained/boot.ts
index 6ee7c8e92..ceba64bad 100644
--- a/apps/drained/boot.ts
+++ b/apps/drained/boot.ts
@@ -1,8 +1,11 @@
+const { battery = 5, interval = 10 } = require("Storage")
+  .readJSON(`${app}.setting.json`, true) || {};
+
 let drainedInterval: number | undefined = setInterval(() => {
   if(Bangle.isCharging())
     return;
-  if(E.getBattery() > 5)
+  if(E.getBattery() > battery)
     return;
 
   load("drained.app.js");
-}, 5 * 60 * 1000);
+}, interval * 60 * 1000);
diff --git a/apps/drained/metadata.json b/apps/drained/metadata.json
index 2af347f79..b665311a4 100644
--- a/apps/drained/metadata.json
+++ b/apps/drained/metadata.json
@@ -11,6 +11,7 @@
   "allow_emulator": true,
   "storage": [
     {"name":"drained.boot.js","url":"boot.js"},
-    {"name":"drained.app.js","url":"app.js"}
+    {"name":"drained.app.js","url":"app.js"},
+    {"name":"drained.settings.js","url":"settings.js"}
   ]
 }
diff --git a/apps/drained/settings.ts b/apps/drained/settings.ts
new file mode 100644
index 000000000..f511a16c6
--- /dev/null
+++ b/apps/drained/settings.ts
@@ -0,0 +1,37 @@
+((back: () => void) => {
+  const SETTINGS_FILE = "drained.setting.json";
+
+  const storage = require("Storage")
+  const settings = storage.readJSON(SETTINGS_FILE, true) || {};
+  settings.battery ??= 5;
+  settings.interval ??= 10;
+
+  const save = () => {
+    storage.writeJSON(SETTINGS_FILE, settings)
+  };
+
+  E.showMenu({
+    "": { "title": "Drained" },
+    "< Back": back,
+    "Trigger when battery reaches": {
+      value: settings.battery,
+      min: 0,
+      max: 95,
+      step: 5,
+      onchange: (v: number) => {
+        settings.battery = v;
+        save();
+      },
+    },
+    "Check every N minutes": {
+      value: settings.interval,
+      min: 1,
+      max: 60 * 2,
+      step: 5,
+      onchange: (v: number) => {
+        settings.interval = v;
+        save();
+      },
+    },
+  });
+})