Add battery reporting feature

README.md

@@ -9,6 +9,7 @@ Inspired by the visual language of the Timeline found on the Pebble Time, TimeSt
 * Colorful: includes over 20 preset color schemes, and also supports custom colors using any color the Pebble Time can display—also supports saving, loading, and sharing custom presets!
 * Configurable: TimeStyle features a wide variety of different complications, including step counts, sleep times, weather forecasts, the week number, seconds, the time in another time zone, the battery level, and more.
 * Keeps you informed: TimeStyle automatically displays notifications when the battery is low or when your phone disconnects.
+* Battery reporting: Send battery status updates to a remote HTTP endpoint (e.g., Home Assistant webhook) when the battery level changes or the charger is connected or disconnected. This feature is adapted from [ForeCal](https://github.com/skylord123/ForeCal).
 * Works in 30 different languages, more than any other Pebble face: English, French, German, Spanish, Italian, Dutch, Turkish, Czech, Slovak, Portuguese, Greek, Swedish, Polish, Romanian, Vietnamese, Catalan, Norwegian, Russian, Estonian, Basque, Finnish, Danish, Lithuanian, Slovenian, Hungarian, Croatian, Serbian, Irish, Latviann, and Ukrainian.
 
 ## Want to try it?

package.json

@@ -63,7 +63,9 @@
       "WeatherUseNightIcon",
       "SettingWidget0ID",
       "SettingWidget1ID",
-      "SettingWidget2ID"
+      "SettingWidget2ID",
+      "BatteryPercent",
+      "IsCharging"
     ],
     "resources": {
       "media": [

src/c/main.c

@@ -146,9 +146,12 @@ void bluetoothStateChanged(bool newConnectionState) {
   Sidebar_redraw();
 }
 
-// force the sidebar to redraw any time the battery state changes
+// force the sidebar to redraw any time the battery state changes and send battery data to phone for remote reporting
 void batteryStateChanged(BatteryChargeState charge_state) {
+  // Redraw sidebar to show updated battery icon
   Sidebar_redraw();
+  // Send battery data to phone for remote reporting
+  messaging_sendBatteryData(charge_state.charge_percent, charge_state.is_charging);
 }
 
 // fixes for disappearing elements after notifications

src/c/messaging.c

@@ -13,6 +13,16 @@ void messaging_requestNewWeatherData() {
   app_message_outbox_send();
 }
 
+void messaging_sendBatteryData(uint8_t batteryPercent, bool isCharging) {
+  DictionaryIterator *iter;
+  app_message_outbox_begin(&iter);
+
+  dict_write_uint8(iter, MESSAGE_KEY_BatteryPercent, batteryPercent);
+  dict_write_uint8(iter, MESSAGE_KEY_IsCharging, isCharging ? 1 : 0);
+
+  app_message_outbox_send();
+}
+
 void messaging_init(void (*processed_callback)(void)) {
   // register my custom callback
   message_processed_callback = processed_callback;
@@ -24,7 +34,7 @@ void messaging_init(void (*processed_callback)(void)) {
   app_message_register_outbox_sent(outbox_sent_callback);
 
   // Open AppMessage
-  app_message_open(512, 8);
+  app_message_open(512, 512);
 
   // APP_LOG(APP_LOG_LEVEL_DEBUG, "Watch messaging is started!");
   app_message_register_inbox_received(inbox_received_callback);

src/c/messaging.h

@@ -2,6 +2,7 @@
 #include <pebble.h>
 
 void messaging_requestNewWeatherData();
+void messaging_sendBatteryData(uint8_t batteryPercent, bool isCharging);
 
 void messaging_init(void (*message_processed_callback)(void));
 void inbox_received_callback(DictionaryIterator *iterator, void *context);

src/pkjs/index.js

@@ -1,9 +1,59 @@
 
 var weather = require('./weather');
 
-var CONFIG_VERSION = 9;
+var CONFIG_VERSION = 10;
 // var BASE_CONFIG_URL = 'http://localhost:3001/';
-var BASE_CONFIG_URL = 'http://freakified.github.io/TimeStylePebble/';
+var BASE_CONFIG_URL = 'https://caco3.github.io/TimeStylePebble/';
+
+// Remote battery endpoint configuration
+var remoteEndpointUrl = '';
+var remoteEndpointToken = '';
+
+// Check if remote endpoint is configured
+function isEndpointConfigured() {
+  return remoteEndpointUrl && remoteEndpointUrl.trim() !== '';
+}
+
+// Send battery data to remote endpoint via HTTP POST with Bearer token
+function sendBatteryToEndpoint(batteryPercent, isCharging) {
+  if (!isEndpointConfigured()) {
+    console.log('Remote endpoint not configured, skipping battery sync');
+    return;
+  }
+
+  console.log('Sending battery data to remote endpoint: ' + batteryPercent + '% (charging: ' + isCharging + ')');
+
+  var req = new XMLHttpRequest();
+  req.open('POST', remoteEndpointUrl, true);
+  req.setRequestHeader('Content-Type', 'application/json');
+
+  // Add Bearer token authorization if provided
+  if (remoteEndpointToken && remoteEndpointToken.trim() !== '') {
+    req.setRequestHeader('Authorization', 'Bearer ' + remoteEndpointToken.trim());
+  }
+
+  req.onload = function() {
+    if (req.readyState === 4) {
+      if (req.status >= 200 && req.status < 300) {
+        console.log('Battery data sent successfully to remote endpoint');
+      } else {
+        console.log('Failed to send battery data to remote endpoint. Status: ' + req.status);
+      }
+    }
+  };
+
+  req.onerror = function() {
+    console.log('Network error sending battery data to remote endpoint');
+  };
+
+  var payload = JSON.stringify({
+    battery_percent: batteryPercent,
+    is_charging: isCharging,
+    timestamp: new Date().toISOString()
+  });
+
+  req.send(payload);
+}
 
 // Listen for when the watchface is opened
 Pebble.addEventListener('ready',
@@ -15,6 +65,14 @@ Pebble.addEventListener('ready',
       window.localStorage.setItem('disable_weather', 'no');
     }
 
+    // Load remote endpoint configuration from localStorage
+    if (window.localStorage.getItem('remote_endpoint_url')) {
+      remoteEndpointUrl = window.localStorage.getItem('remote_endpoint_url');
+    }
+    if (window.localStorage.getItem('remote_endpoint_token')) {
+      remoteEndpointToken = window.localStorage.getItem('remote_endpoint_token');
+    }
+
     console.log('the wdisabled value is: "' + window.localStorage.getItem('disable_weather') + '"');
     // if applicable, get the weather data
     if (window.localStorage.getItem('disable_weather') != 'yes') {
@@ -29,6 +87,11 @@ Pebble.addEventListener('appmessage',
   function (msg) {
     console.log('Recieved message: ' + JSON.stringify(msg.payload));
 
+    // Check if this is a battery status update
+    if (msg.payload.BatteryPercent !== undefined && msg.payload.IsCharging !== undefined) {
+      sendBatteryToEndpoint(msg.payload.BatteryPercent, msg.payload.IsCharging);
+    }
+
     // in the case of recieving this, we assume the watch does, in fact, need weather data
     window.localStorage.setItem('disable_weather', 'no');
     weather.updateWeather();
@@ -244,6 +307,17 @@ Pebble.addEventListener('webviewclosed', function (e) {
       }
     }
 
+    // remote battery endpoint settings
+    if (configData.remote_endpoint_url) {
+      remoteEndpointUrl = configData.remote_endpoint_url;
+      window.localStorage.setItem('remote_endpoint_url', configData.remote_endpoint_url);
+    }
+
+    if (configData.remote_endpoint_token) {
+      remoteEndpointToken = configData.remote_endpoint_token;
+      window.localStorage.setItem('remote_endpoint_token', configData.remote_endpoint_token);
+    }
+
     // determine whether or not the weather checking should be enabled
     var disableWeather;