Update HISTORY.md

Amended v3.1 test to include the bug fix.

.vscode/settings.json

@@ -4,6 +4,8 @@
     "Venu"
   ],
   "files.exclude": {
-    "resources-*": true
+    "resources-*": true,
+    "bin": true,
+    "export": true
   }
 }

HISTORY.md

@@ -46,4 +46,4 @@
 |   2.31  | Adding [two new options](./examples/Actions.md#exit-on-tap) to the menu items: 1) The ability to disable a menu item, e.g. temporarily for seasonal changes, 2) The option to exit after a menu item has been select. |
 |   2.32  | Bug fix for a breaking change extracting options caused by the need to rearrange function parameters for an [annoying compiler error](https://github.com/house-of-abbey/GarminHomeAssistant/issues/253). |
 |   3.0   | First version with the ability to use [Wi-Fi or LTE](Wi-Fi.md) instead of Bluetooth but with limited functionality, thanks to [@vincentezw](https://github.com/vincentezw). |
-|   3.1   | Added the ability for users to provide custom HTTP headers for their Home Assistant server. Improved German language translations. Removed all groups in settings as the SDK is buggy. |
+|   3.1   | Added the ability for users to provide custom HTTP headers for their Home Assistant server. Improved German language translations. Removed all groups in settings as the SDK is buggy. Fixed a bug with templates in glances causing application crash on startup. |

HTTP_Headers.md

@@ -2,7 +2,7 @@
 
 # User Specified Custom HTTP Headers
 
-Principally for those who use Home Assistant add-on [Cloudflared](https://github.com/brenner-tobias/addon-cloudflared) in order to provide additional security via Cloudflare's Web Application Firewall (WAF). But the solution is generic enough for other use cases.
+Principally for those who use Home Assistant add-on [Cloudflared](https://github.com/brenner-tobias/addon-cloudflared) in order to provide additional security via Cloudflare's Web Application Firewall (WAF). But Garmin does not support certificates in requests. And the solution is generic enough for other use cases.
 
 Please let us know if this solution is found to be useful for other situations.
 
@@ -14,6 +14,12 @@ The settings contain two options for users to specify both the HTTP header name
 
 If you don't know why you need these, leave them empty and ignore.
 
+### Cloudflare WAF rule example
+
+`(any(http.request.headers["your-header-name"][*] eq "your-header-key"))`
+
+Make the key strong enough!
+
 ## Support
 
 **None!**
@@ -23,3 +29,9 @@ The authors of the Garmin Home Assistant application do not use, and hence do no
 ## Credits
 
 With thanks to Lars Pöpperl ([@tispokes](https://github.com/tispokes)) for contributing to this solution.
+
+
+## References
+
+* [Using Cloudflare ZeroTrust and mTLS to securely access Home Assistant via the internet](https://kcore.org/2024/06/28/using-cloudflare-zerotrust-and-mtls-with-home-assistant-via-the-internet/)
+* [Home Assistant Add-on: Cloudflared](https://github.com/brenner-tobias/addon-cloudflared)

README.md

@@ -17,6 +17,8 @@ The application is designed around a simple scrollable menu where menu items hav
 > [!IMPORTANT]
 > The Garmin SDK allows HTTP requests only to a limited number of domains specified in their app. Therefore, for your Garmin to communicate with your Home Assistant instance, your Home Assistant instance must be accessible via HTTPS (with a public certificate!) or through a local DNS server that overrides one of the whitelisted domains to communicate using HTTP.
 >
+>New with version 3.1, you can use [Cloudflared](https://github.com/brenner-tobias/addon-cloudflared) plug-in in combination with a [custom HTTP header](HTTP_Headers.md) and do not need a public certificate for HTTPS.
+>
 > To make your Home Assistant instance accessible via HTTPS, you will need a public certificate. You can get one for free from [Let's Encrypt](https://letsencrypt.org/) or you can pay for [Home Assistant cloud](https://www.nabucasa.com/). (You can install a local [Nginx proxy server](https://my.home-assistant.io/redirect/supervisor_addon/?addon=a0d7b954_nginxproxymanager) to manage Let's Encrypt certificates.)
 >
 > If you use a local DNS server (like [Pi-Hole](https://pi-hole.net/)), you can create a local DNS record for the domain `garmincdn.com` (which is allowed for HTTP in the Garmin SDK) and map it to your Home Assistant instance's IP. "_[About Communication Between Garmin SDK and a Raspberry Pi](https://www.instructables.com/About-Communication-Between-Garmin-SDK-and-a-Raspb/)_" provides additional workarounds for HTTP request restrictions in the Garmin SDK.
@@ -230,7 +232,7 @@ Make sure you can browse to the URL of your JSON file in a standard web browser
 
 ## API Key Creation
 
-Having created your JSON definition for your dashboard, you need to create an API key for your personal account on Home Assistant. You will need a [Long-Lived Access Token](https://developers.home-assistant.io/docs/auth_api/#long-lived-access-token). This is not obvious to find and is bound to your own Home Assistant account. Follow the menu sequence: `HA -> user profile -> Long-lived access tokens`. Make sure you save the generated token before dismissing it.
+Having created your JSON definition for your dashboard, you need to create an API key for your personal account on Home Assistant. You will need a [Long-Lived Access Token](https://developers.home-assistant.io/docs/auth_api/#long-lived-access-token). This is not obvious to find and is bound to your own Home Assistant account. Follow the menu sequence: `HA -> User Profile -> "Security" tab -> Long-lived access tokens`. Make sure you save the generated token before dismissing it.
 
 ![Long-Lived Access Token](images/Long_Lived_Access_Tokens.png)
 

source/HomeAssistantApp.mc

@@ -25,8 +25,8 @@ using Toybox.Timer;
 //
 (:glance, :background)
 class HomeAssistantApp extends Application.AppBase {
-    private var mApiStatus      as Lang.String?;
     private var mHasToast       as Lang.Boolean = false;
+    private var mApiStatus      as Lang.String?;
     private var mMenuStatus     as Lang.String?;
     private var mHaMenu         as HomeAssistantView?;
     private var mGlanceTemplate as Lang.String? = null;
@@ -36,7 +36,6 @@ class HomeAssistantApp extends Application.AppBase {
     private var mUpdateTimer    as Timer.Timer?;
     // Array initialised by onReturnFetchMenuConfig()
     private var mItemsToUpdate  as Lang.Array<HomeAssistantToggleMenuItem or HomeAssistantTapMenuItem or HomeAssistantGroupMenuItem>?;
-    private var mIsGlance       as Lang.Boolean    = false;
     private var mIsApp          as Lang.Boolean    = false; // Or Widget
     private var mUpdating       as Lang.Boolean    = false; // Don't start a second chain of updates
     private var mTemplates      as Lang.Dictionary = {};
@@ -155,7 +154,6 @@ class HomeAssistantApp extends Application.AppBase {
     //! @param responseCode Response code.
     //! @param data         Response data.
     //
-    (:glance)
     function onReturnFetchMenuConfig(
         responseCode as Lang.Number,
         data         as Null or Lang.Dictionary or Lang.String
@@ -168,35 +166,35 @@ class HomeAssistantApp extends Application.AppBase {
             case Communications.BLE_HOST_TIMEOUT:
             case Communications.BLE_CONNECTION_UNAVAILABLE:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String);
                 }
                 break;
 
             case Communications.BLE_QUEUE_FULL:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
                 }
                 break;
 
             case Communications.NETWORK_REQUEST_TIMED_OUT:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
                 }
                 break;
 
             case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
                 }
                 break;
 
             case 404:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig() Response Code: 404, page not found. Check Configuration URL setting.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ConfigUrlNotFound) as Lang.String);
                 }
                 break;
@@ -212,7 +210,7 @@ class HomeAssistantApp extends Application.AppBase {
                         mMenuStatus = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
                     }
                 }
-                if (mIsGlance) {
+                if (!mIsApp) {
                     glanceTemplate(data);
                 } else {
                     if (data == null) {
@@ -226,7 +224,7 @@ class HomeAssistantApp extends Application.AppBase {
 
             default:
                 // System.println("HomeAssistantApp onReturnFetchMenuConfig(): Unhandled HTTP response code = " + responseCode);
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
                 }
                 break;
@@ -251,7 +249,6 @@ class HomeAssistantApp extends Application.AppBase {
     //! @return Return true if the menu came from the cache, otherwise false. This is because fetching
     //!         the menu when not in the cache is asynchronous and affects how the views are managed.
     //
-    (:glance)
     function fetchMenuConfig() as Lang.Boolean {
         // System.println("Menu URL = " + Settings.getConfigUrl());
         if (Settings.getConfigUrl().equals("")) {
@@ -275,7 +272,7 @@ class HomeAssistantApp extends Application.AppBase {
                         errorRez = $.Rez.Strings.Unavailable;
                     }
                     // System.println("HomeAssistantApp fetchMenuConfig(): No Phone connection, skipping API call.");
-                    if (mIsGlance) {
+                    if (!mIsApp) {
                         WatchUi.requestUpdate();
                     } else {
                         ErrorView.show(WatchUi.loadResource(errorRez) as Lang.String);
@@ -296,7 +293,7 @@ class HomeAssistantApp extends Application.AppBase {
             } else {
                 mMenuStatus = WatchUi.loadResource($.Rez.Strings.Cached) as Lang.String;
                 WatchUi.requestUpdate();
-                if (mIsGlance) {
+                if (!mIsApp) {
                     glanceTemplate(menu);
                 } else {
                     buildMenu(menu);
@@ -430,85 +427,87 @@ class HomeAssistantApp extends Application.AppBase {
     //! Construct the GET request to update all menu items.
     //
     function updateMenuItems() as Void {
-        var phoneConnected = System.getDeviceSettings().phoneConnected;
+        if (mUpdating) {
-        var connectionAvailable = System.getDeviceSettings().connectionAvailable;
+            var phoneConnected      = System.getDeviceSettings().phoneConnected;
+            var connectionAvailable = System.getDeviceSettings().connectionAvailable;
 
-        // In Wi-Fi/LTE execution mode, we should not show an error page but use a toast instead.
+            // In Wi-Fi/LTE execution mode, we should not show an error page but use a toast instead.
-        if (Settings.getWifiLteExecutionEnabled() && (! phoneConnected || ! connectionAvailable)) {
+            if (Settings.getWifiLteExecutionEnabled() && (! phoneConnected || ! connectionAvailable)) {
-            // Notify only once per disconnection cycle
+                // Notify only once per disconnection cycle
-            if (!mNotifiedNoBle) {
+                if (!mNotifiedNoBle) {
-                var toast = WatchUi.loadResource($.Rez.Strings.NoPhone);
+                    var toast = WatchUi.loadResource($.Rez.Strings.NoPhone);
-                if (!connectionAvailable) {
+                    if (!connectionAvailable) {
-                    toast = WatchUi.loadResource($.Rez.Strings.NoInternet);
+                        toast = WatchUi.loadResource($.Rez.Strings.NoInternet);
+                    }
+
+                    if (mHasToast) {
+                        WatchUi.showToast(toast, null);
+                    } else {
+                        new Alert({
+                            :timeout => Globals.scAlertTimeoutMs,
+                            :font    => Graphics.FONT_MEDIUM,
+                            :text    => toast,
+                            :fgcolor => Graphics.COLOR_WHITE,
+                            :bgcolor => Graphics.COLOR_BLACK
+                        }).pushView(WatchUi.SLIDE_IMMEDIATE);
+                    }
                 }
 
-                if (mHasToast) {
+                mNotifiedNoBle = true;
-                    WatchUi.showToast(toast, null);
+                setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-                } else {
+                mUpdateTimer.start(method(:startUpdates), Globals.wifiPollResumeDelayMs, false);
-                    new Alert({
+
-                        :timeout => Globals.scAlertTimeoutMs,
+                mUpdating = false;
-                        :font    => Graphics.FONT_MEDIUM,
+                return;
-                        :text    => toast,
-                        :fgcolor => Graphics.COLOR_WHITE,
-                        :bgcolor => Graphics.COLOR_BLACK
-                    }).pushView(WatchUi.SLIDE_IMMEDIATE);
-                }
             }
 
-            mNotifiedNoBle = true;
+            if (! phoneConnected) {
-            setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+                // System.println("HomeAssistantApp updateMenuItems(): No Phone connection, skipping API call.");
-            mUpdateTimer.start(method(:startUpdates), Globals.wifiPollResumeDelayMs, false);
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String);
+                setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+            } else if (! connectionAvailable) {
+                // System.println("HomeAssistantApp updateMenuItems(): No Internet connection, skipping API call.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String);
+                setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+            } else {
+                mNotifiedNoBle = false;
 
-            mUpdating = false;
+                if (mItemsToUpdate == null or mTemplates == null) {
-            return;
+                    mItemsToUpdate = mHaMenu.getItemsToUpdate();
-        }
+                    mTemplates = {};
-
+                    for (var i = 0; i < mItemsToUpdate.size(); i++) {
-        if (! phoneConnected) {
+                        var item = mItemsToUpdate[i];
-            // System.println("HomeAssistantApp updateMenuItems(): No Phone connection, skipping API call.");
+                        var template = item.getTemplate();
-            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String);
+                        if (template != null) {
-            setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+                            mTemplates.put(i.toString(), {
-        } else if (! connectionAvailable) {
+                                "template" => template
-            // System.println("HomeAssistantApp updateMenuItems(): No Internet connection, skipping API call.");
+                            });
-            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String);
+                        }
-            setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+                    if (item instanceof HomeAssistantToggleMenuItem) {
-        } else {
+                        mTemplates.put(i.toString() + "t", {
-            mNotifiedNoBle = false;
+                            "template" => (item as HomeAssistantToggleMenuItem).getToggleTemplate()
-
-            if (mItemsToUpdate == null or mTemplates == null) {
-                mItemsToUpdate = mHaMenu.getItemsToUpdate();
-                mTemplates = {};
-                for (var i = 0; i < mItemsToUpdate.size(); i++) {
-                    var item = mItemsToUpdate[i];
-                    var template = item.getTemplate();
-                    if (template != null) {
-                        mTemplates.put(i.toString(), {
-                            "template" => template
                         });
                     }
-                   if (item instanceof HomeAssistantToggleMenuItem) {
+                    }
-                       mTemplates.put(i.toString() + "t", {
-                           "template" => (item as HomeAssistantToggleMenuItem).getToggleTemplate()
-                       });
-                   }
                 }
+                // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
+                // System.println("HomeAssistantApp updateMenuItems() URL=" + url + ", Template='" + mTemplate + "'");
+                Communications.makeWebRequest(
+                    Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId(),
+                    {
+                        "type" => "render_template",
+                        "data" => mTemplates
+                    },
+                    {
+                        :method       => Communications.HTTP_REQUEST_METHOD_POST,
+                        :headers      => Settings.augmentHttpHeaders({
+                            "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
+                        }),
+                        :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
+                    },
+                    method(:onReturnUpdateMenuItems)
+                );
             }
-            // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
-            // System.println("HomeAssistantApp updateMenuItems() URL=" + url + ", Template='" + mTemplate + "'");
-            Communications.makeWebRequest(
-                Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId(),
-                {
-                    "type" => "render_template",
-                    "data" => mTemplates
-                },
-                {
-                    :method       => Communications.HTTP_REQUEST_METHOD_POST,
-                    :headers      => Settings.augmentHttpHeaders({
-                        "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
-                    }),
-                    :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
-                },
-                method(:onReturnUpdateMenuItems)
-            );
         }
     }
 
@@ -517,7 +516,6 @@ class HomeAssistantApp extends Application.AppBase {
     //! @param responseCode Response code.
     //! @param data         Response data.
     //
-    (:glance)
     function onReturnFetchApiStatus(
         responseCode as Lang.Number,
         data         as Null or Lang.Dictionary or Lang.String
@@ -530,35 +528,35 @@ class HomeAssistantApp extends Application.AppBase {
             case Communications.BLE_HOST_TIMEOUT:
             case Communications.BLE_CONNECTION_UNAVAILABLE:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String);
                 }
                 break;
 
             case Communications.BLE_QUEUE_FULL:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
                 }
                 break;
 
             case Communications.NETWORK_REQUEST_TIMED_OUT:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
                 }
                 break;
 
             case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
                 }
                 break;
 
             case 404:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus() Response Code: 404, page not found. Check Configuration URL setting.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ConfigUrlNotFound) as Lang.String);
                 }
                 break;
@@ -567,7 +565,7 @@ class HomeAssistantApp extends Application.AppBase {
                 if ((data != null) && data.get("message").equals("API running.")) {
                     mApiStatus = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
                 } else {
-                    if (!mIsGlance) {
+                    if (mIsApp) {
                         ErrorView.show("API " + mApiStatus + ".");
                     }
                 }
@@ -575,7 +573,7 @@ class HomeAssistantApp extends Application.AppBase {
 
             default:
                 // System.println("HomeAssistantApp onReturnFetchApiStatus(): Unhandled HTTP response code = " + responseCode);
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
                 }
         }
@@ -584,7 +582,6 @@ class HomeAssistantApp extends Application.AppBase {
 
     //! Construct the GET request to test the API status, is it accessible?
     //
-    (:glance)
     function fetchApiStatus() as Void {
         var phoneConnected = System.getDeviceSettings().phoneConnected;
         var connectionAvailable = System.getDeviceSettings().connectionAvailable;
@@ -594,13 +591,13 @@ class HomeAssistantApp extends Application.AppBase {
             mApiStatus = WatchUi.loadResource($.Rez.Strings.Unconfigured) as Lang.String;
             WatchUi.requestUpdate();
         } else {
-            if (! mIsGlance && Settings.getWifiLteExecutionEnabled() && (! phoneConnected || ! connectionAvailable)) {
+            if ( mIsApp && Settings.getWifiLteExecutionEnabled() && (! phoneConnected || ! connectionAvailable)) {
                 // System.println("HomeAssistantApp fetchApiStatus(): In-app Wifi mode (No Phone and Internet connection), early return.");
                 return;
             } else if (! phoneConnected) {
                 // System.println("HomeAssistantApp fetchApiStatus(): No Phone connection, skipping API call.");
                 mApiStatus = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
-                if (mIsGlance) {
+                if (!mIsApp) {
                     WatchUi.requestUpdate();
                 } else {
                     System.println("we here");
@@ -609,7 +606,7 @@ class HomeAssistantApp extends Application.AppBase {
             } else if (! connectionAvailable) {
                 // System.println("HomeAssistantApp fetchApiStatus(): No Internet connection, skipping API call.");
                 mApiStatus = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
-                if (mIsGlance) {
+                if (!mIsApp) {
                     WatchUi.requestUpdate();
                 } else {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String);
@@ -637,7 +634,6 @@ class HomeAssistantApp extends Application.AppBase {
     //! @param responseCode Response code.
     //! @param data         Response data.
     //
-    (:glance)
     function onReturnFetchGlanceContent(
         responseCode as Lang.Number,
         data         as Null or Lang.Dictionary or Lang.String
@@ -649,35 +645,35 @@ class HomeAssistantApp extends Application.AppBase {
             case Communications.BLE_HOST_TIMEOUT:
             case Communications.BLE_CONNECTION_UNAVAILABLE:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String);
                 }
                 break;
 
             case Communications.BLE_QUEUE_FULL:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
                 }
                 break;
 
             case Communications.NETWORK_REQUEST_TIMED_OUT:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
                 }
                 break;
 
             case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
                 }
                 break;
 
             case 404:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent() Response Code: 404, page not found. Check Configuration URL setting.");
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.ConfigUrlNotFound) as Lang.String);
                 }
                 break;
@@ -690,7 +686,7 @@ class HomeAssistantApp extends Application.AppBase {
 
             default:
                 // System.println("HomeAssistantApp onReturnFetchGlanceContent(): Unhandled HTTP response code = " + responseCode);
-                if (!mIsGlance) {
+                if (mIsApp) {
                     ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
                 }
         }
@@ -699,7 +695,6 @@ class HomeAssistantApp extends Application.AppBase {
 
     //! Construct the GET request to convert the optional glance template to text for display.
     //
-    (:glance)
     function fetchGlanceContent() as Void {
         if (mGlanceTemplate != null) {
             // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
@@ -737,7 +732,6 @@ class HomeAssistantApp extends Application.AppBase {
     //!
     //! @return A string describing the API status
     //
-    (:glance)
     function getApiStatus() as Lang.String {
         return mApiStatus;
     }
@@ -746,7 +740,6 @@ class HomeAssistantApp extends Application.AppBase {
     //!
     //! @return A string describing the Menu status
     //
-    (:glance)
     function getMenuStatus() as Lang.String {
         return mMenuStatus;
     }
@@ -756,7 +749,6 @@ class HomeAssistantApp extends Application.AppBase {
     //!
     //! @return A string derived from the glance template (or null)
     //
-    (:glance)
     function getGlanceText() as Lang.String? {
         return mGlanceText;
     }
@@ -800,7 +792,7 @@ class HomeAssistantApp extends Application.AppBase {
     //! @return The glance view
     //
     function getGlanceView() as [ WatchUi.GlanceView ] or [ WatchUi.GlanceView, WatchUi.GlanceViewDelegate ] or Null {
-        mIsGlance   = true;
+        mIsApp      = false; // A bit unnecessary given the default
         mApiStatus  = WatchUi.loadResource($.Rez.Strings.Checking) as Lang.String;
         mMenuStatus = WatchUi.loadResource($.Rez.Strings.Checking) as Lang.String;
         Settings.update();
@@ -824,7 +816,9 @@ class HomeAssistantApp extends Application.AppBase {
         mGlanceTimer = null;
         fetchMenuConfig();
         fetchApiStatus();
-        fetchGlanceContent();
+        if (Settings.getWebhookId() != null && !Settings.getWebhookId().equals("")) {
+            fetchGlanceContent();
+        }
     }
 
     //! Code for when the application settings are updated.
@@ -842,6 +836,8 @@ class HomeAssistantApp extends Application.AppBase {
     }
 
     //! Determine is we are a glance or the full application. Glances should be considered to be separate applications.
+    //!
+    //! @return We are an application (if not we're a glance)
     //
     function getIsApp() as Lang.Boolean {
         return mIsApp;
@@ -857,6 +853,8 @@ class HomeAssistantApp extends Application.AppBase {
 }
 
 //! Global function to return the application object.
+//!
+//! @return The application object.
 //
 (:glance, :background)
 function getApp() as HomeAssistantApp {

source/Settings.mc

@@ -297,7 +297,7 @@ class Settings {
     //! @return The augmented HTTP header options.
     //
     static function augmentHttpHeaders(options as Lang.Dictionary) {
-        // Use 'm.length() > 0' here in preference to 'm != ""'. The latter makes the app crash on device but not in simulation.
+        // Use 'm.length() > 0' here in preference to 'm != ""' or '.equals("")'. They make the App crash on device but not in simulation.
         if (mUserHeaderName != null && mUserHeaderName.length() > 0 && mUserHeaderValue != null && mUserHeaderValue.length() > 0) {
             options[mUserHeaderName] = mUserHeaderValue;
         }

source/WebhookManager.mc

@@ -25,7 +25,9 @@ using Toybox.WatchUi;
 //!
 //! Reference: https://developers.home-assistant.io/docs/api/native-app-integration
 //
+(:glance)
 class WebhookManager {
+    private var mSensors as Lang.Array<Lang.Object> = [];
 
     //! Callback for requesting a Webhook ID.
     //!
@@ -130,11 +132,7 @@ class WebhookManager {
     //! @param sensors      The remaining sensors to be processed. The list of sensors is iterated through
     //!                     until empty. Each POST request creating one sensor on the local Home Assistant.
     //
-    function onReturnRegisterWebhookSensor(
+    function onReturnRegisterWebhookSensor(responseCode as Lang.Number, data as Null or Lang.Dictionary or Lang.String) as Void {
-        responseCode as Lang.Number,
-        data         as Null or Lang.Dictionary or Lang.String,
-        sensors      as Lang.Array<Lang.Object>
-    ) as Void {
         switch (responseCode) {
             case Communications.BLE_HOST_TIMEOUT:
             case Communications.BLE_CONNECTION_UNAVAILABLE:
@@ -176,13 +174,14 @@ class WebhookManager {
             case 200:
             case 201:
                 if (data instanceof Lang.Dictionary) {
-                    var d = data as Lang.Dictionary;
+                    var d = data             as Lang.Dictionary;
                     var b = d.get("success") as Lang.Boolean?;
                     if (b != null and b != false) {
-                        if (sensors.size() == 0) {
+                        mSensors = mSensors.slice(1, null);
+                        if (mSensors.size() == 0) {
                             getApp().startUpdates();
                         } else {
-                            registerWebhookSensor(sensors);
+                            registerWebhookSensor();
                         }
                     } else {
                         // System.println("WebhookManager onReturnRegisterWebhookSensor(): Failure, no 'success'.");
@@ -213,11 +212,10 @@ class WebhookManager {
         }
     }
 
-    //! Local method to send the POST request to register a number of sensors.
+    //! Local method to send the POST request to register a number of sensors. The sensors are taken from the class variable
-    //!
+    //! mSensors created by registerWebhookSensors().
-    //! @param sensors An array of sensors, e.g. As created by `registerWebhookSensors()`.
     //
-    private function registerWebhookSensor(sensors as Lang.Array<Lang.Object>) {
+    private function registerWebhookSensor() {
         var url = Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId();
         // System.println("WebhookManager registerWebhookSensor(): Registering webhook sensor: " + sensor.toString());
         // System.println("WebhookManager registerWebhookSensor(): URL=" + url);
@@ -226,15 +224,14 @@ class WebhookManager {
             url,
             {
                 "type" => "register_sensor",
-                "data" => sensors[0]
+                "data" => mSensors[0]
             },
             {
                 :method       => Communications.HTTP_REQUEST_METHOD_POST,
                 :headers      => Settings.augmentHttpHeaders({
                     "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
                 }),
-                :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON,
+                :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
-                :context      => sensors.slice(1, null)
             },
             method(:onReturnRegisterWebhookSensor)
         );
@@ -245,7 +242,7 @@ class WebhookManager {
     function registerWebhookSensors() {
         var heartRate = Activity.getActivityInfo().currentHeartRate;
 
-        var sensors = [
+        mSensors = [
             {
                 "device_class"        => "battery",
                 "name"                => "Battery Level",
@@ -283,7 +280,7 @@ class WebhookManager {
         if (Toybox has :ActivityMonitor) {
             // System.println("WebhookManager registerWebhookSensors(): has ActivityMonitor class");
             var activityInfo = ActivityMonitor.getInfo();
-            sensors.add({
+            mSensors.add({
                 "name"                => "Steps today",
                 "state"               => activityInfo.steps == null ? "unknown" : activityInfo.steps,
                 "type"                => "sensor",
@@ -294,7 +291,7 @@ class WebhookManager {
             });
 
             if (ActivityMonitor.Info has :floorsClimbed) {
-                sensors.add({
+                mSensors.add({
                     "name"                => "Floors climbed today",
                     "state"               => activityInfo.floorsClimbed == null ? "unknown" : activityInfo.floorsClimbed,
                     "type"                => "sensor",
@@ -306,7 +303,7 @@ class WebhookManager {
             }
 
             if (ActivityMonitor.Info has :floorsDescended) {
-                sensors.add({
+                mSensors.add({
                     "name"                => "Floors descended today",
                     "state"               => activityInfo.floorsDescended == null ? "unknown" : activityInfo.floorsDescended,
                     "type"                => "sensor",
@@ -318,7 +315,7 @@ class WebhookManager {
             }
 
             if (ActivityMonitor.Info has :respirationRate) {
-                sensors.add({
+                mSensors.add({
                     "name"                => "Respiration rate",
                     "state"               => activityInfo.respirationRate == null ? "unknown" : activityInfo.respirationRate,
                     "type"                => "sensor",
@@ -345,14 +342,14 @@ class WebhookManager {
                 activity     = -1;
                 sub_activity = -1;
             }
-            sensors.add({
+            mSensors.add({
                 "name"      => "Activity",
                 "state"     => activity,
                 "type"      => "sensor",
                 "unique_id" => "activity",
                 "disabled"  => !Settings.isSensorsLevelEnabled()
             });
-            sensors.add({
+            mSensors.add({
                 "name"      => "Sub-activity",
                 "state"     => sub_activity,
                 "type"      => "sensor",
@@ -361,7 +358,7 @@ class WebhookManager {
             });
         }
 
-        registerWebhookSensor(sensors);
+        registerWebhookSensor();
     }
 
 }