Move BLE advertising coordination to a module

.eslintignore

@@ -16,3 +16,4 @@ apps/rep/
 apps/widChargingStatus/
 apps/widbtstates/
 apps/widhid/
+modules/ble_advert.js

apps/bootgattbat/ChangeLog

@@ -1,2 +1,3 @@
 0.01: Initial release.
 0.02: Handle the case where other apps have set bleAdvert to an array
+0.03: Use the bleAdvert module

apps/bootgattbat/boot.js

@@ -1,26 +1,8 @@
 (() => {
   function advertiseBattery() {
-    if(Array.isArray(Bangle.bleAdvert)){
-      // ensure we're in the cycle
-      var found = false;
-      for(var ad in Bangle.bleAdvert){
-        if(ad[0x180F]){
-          ad[0x180F] = [E.getBattery()];
-          found = true;
-          break;
-        }
-      }
-      if(!found)
-        Bangle.bleAdvert.push({ 0x180F: [E.getBattery()] });
-    }else{
-      // simple object
-      Bangle.bleAdvert[0x180F] = [E.getBattery()];
+    require("ble_advert").set(0x180F, [E.getBattery()]);
   }
 
-    NRF.setAdvertising(Bangle.bleAdvert);
-  }
-
-  if (!Bangle.bleAdvert) Bangle.bleAdvert = {};
   setInterval(advertiseBattery, 60 * 1000);
   advertiseBattery();
 })();

apps/bootgattbat/metadata.json

@@ -2,7 +2,7 @@
   "id": "bootgattbat",
   "name": "BLE GATT Battery Service",
   "shortName": "BLE Battery Service",
-  "version": "0.02",
+  "version": "0.03",
   "description": "Adds the GATT Battery Service to advertise the percentage of battery currently remaining over Bluetooth.\n",
   "icon": "bluetooth.png",
   "type": "bootloader",

apps/bootgatthrm/ChangeLog

@@ -1,3 +1,4 @@
 0.01: Initial release.
 0.02: Added compatibility to OpenTracks and added HRM Location
 0.03: Allow setting to keep BLE connected
+0.04: Use the bleAdvert module

apps/bootgatthrm/boot.js

@@ -4,18 +4,13 @@
      * This function prepares BLE heart rate Advertisement.
      */
 
-    NRF.setAdvertising(
-      {
-        0x180d: undefined
-      },
-      {
+    require("ble_advert").set(0x180d, undefined, {
       // We need custom Advertisement settings for Apps like OpenTracks
       connectable: true,
       discoverable: true,
       scannable: true,
       whenConnected: true,
-      }
-    );
+    });
 
     NRF.setServices({
       0x180D: { // heart_rate
@@ -28,7 +23,6 @@
         }
       }
     });
-
   }
 
   const keepConnected = (require("Storage").readJSON("gatthrm.settings.json", 1) || {}).keepConnected;

apps/bootgatthrm/metadata.json

@@ -2,7 +2,7 @@
   "id": "bootgatthrm",
   "name": "BLE GATT HRM Service",
   "shortName": "BLE HRM Service",
-  "version": "0.03",
+  "version": "0.04",
   "description": "Adds the GATT HRM Service to advertise the measured HRM over Bluetooth.\n",
   "icon": "bluetooth.png",
   "type": "bootloader",

apps/btadv/app.ts

@@ -666,6 +666,8 @@ const getBleAdvert = <T>(map: (s: BleServ) => T, all = false) => {
 
 // done via advertise in setServices()
 //const updateBleAdvert = () => {
+//  require("ble_advert").set(...)
+//
 //  let bleAdvert: ReturnType<typeof getBleAdvert<undefined>>;
 //
 //  if (!(bleAdvert = (Bangle as any).bleAdvert)) {

apps/bthome/ChangeLog

@@ -3,3 +3,4 @@
 0.03: Cope with identical duplicate buttons (fix #3260)
       Set 'n' for buttons in Bangle.btHomeData correctly (avoids adding extra buttons on end of advertising)
 0.04: Fix duplicate button on edit->save
+0.05: Use the bleAdvert module

apps/bthome/boot.js

@@ -1,5 +1,3 @@
-// Ensure we have the bleAdvert global (to play well with other stuff)
-if (!Bangle.bleAdvert) Bangle.bleAdvert = {};
 Bangle.btHomeData = [];
 {
   require("BTHome").packetId = 0|(Math.random()*256); // random packet id so new packets show up
@@ -39,20 +37,6 @@ Bangle.btHome = function(extras, options) {
   if (bat) bat.v = E.getBattery();
   var advert = require("BTHome").getAdvertisement(Bangle.btHomeData)[0xFCD2];
   // Add to the list of available advertising
-  if(Array.isArray(Bangle.bleAdvert)){
-    var found = false;
-    for(var ad in Bangle.bleAdvert){
-      if(ad[0xFCD2]){
-        ad[0xFCD2] = advert;
-        found = true;
-        break;
-      }
-    }
-    if(!found)
-      Bangle.bleAdvert.push({ 0xFCD2: advert });
-  } else {
-    Bangle.bleAdvert[0xFCD2] = advert;
-  }
   var advOptions = {};
   var updateTimeout = 10*60*1000; // update every 10 minutes
   if (options.event) { // if it's an event...
@@ -60,7 +44,7 @@ Bangle.btHome = function(extras, options) {
     advOptions.whenConnected = true;
     updateTimeout = 30000; // slow down in 30 seconds
   }
-  NRF.setAdvertising(Bangle.bleAdvert, advOptions);
+  require("ble_advert").set(0xFCD2, advert, advOptions);
   if (Bangle.btHomeTimeout) clearTimeout(Bangle.btHomeTimeout);
   Bangle.btHomeTimeout = setTimeout(function() {
     delete Bangle.btHomeTimeout;

apps/bthome/metadata.json

@@ -1,7 +1,7 @@
 { "id": "bthome",
   "name": "BTHome",
   "shortName":"BTHome",
-  "version":"0.04",
+  "version":"0.05",
   "description": "Allow your Bangle to advertise with BTHome and send events to Home Assistant via Bluetooth",
   "icon": "icon.png",
   "type": "app",

apps/bthometemp/ChangeLog

@@ -1,2 +1,3 @@
 0.01: New App!
 0.02: Handle the case where other apps have set bleAdvert to an array
+0.03: Use the bleAdvert module

apps/bthometemp/app.js

@@ -38,21 +38,7 @@ function onTemperature(p) {
               pressure100&255,(pressure100>>8)&255,pressure100>>16
   ];
 
-  if(Array.isArray(Bangle.bleAdvert)){
-    var found = false;
-    for(var ad in Bangle.bleAdvert){
-      if(ad[0xFCD2]){
-        ad[0xFCD2] = advert;
-        found = true;
-        break;
-      }
-    }
-    if(!found)
-      Bangle.bleAdvert.push({ 0xFCD2: advert });
-  }else{
-    Bangle.bleAdvert[0xFCD2] = advert;
-  }
-  NRF.setAdvertising(Bangle.bleAdvert);
+  require("ble_advert").set(0xFCD2, advert);
 }
 
 // Gets the temperature in the most accurate way with pressure sensor
@@ -60,7 +46,6 @@ function drawTemperature() {
   Bangle.getPressure().then(p =>{if (p) onTemperature(p);});
 }
 
-if (!Bangle.bleAdvert) Bangle.bleAdvert = {};
 setInterval(function() {
   drawTemperature();
 }, 10000); // update every 10s

apps/bthometemp/metadata.json

@@ -1,7 +1,7 @@
 { "id": "bthometemp",
   "name": "BTHome Temperature and Pressure",
   "shortName":"BTHome T",
-  "version":"0.02",
+  "version":"0.03",
   "description": "Displays temperature and pressure, and advertises them over bluetooth for Home Assistant using BTHome.io standard",
   "icon": "app.png",
   "tags": "bthome,bluetooth,temperature",

modules/ble_advert.js

@@ -0,0 +1,51 @@
+exports.set = function (id, advert, options) {
+    var _a, _b;
+    var bangle = Bangle;
+    if (Array.isArray(bangle.bleAdvert)) {
+        var found = false;
+        for (var _i = 0, _c = bangle.bleAdvert; _i < _c.length; _i++) {
+            var ad = _c[_i];
+            if (ad[id]) {
+                ad[id] = advert;
+                found = true;
+                break;
+            }
+        }
+        if (!found)
+            bangle.bleAdvert.push((_a = {}, _a[id] = advert, _a));
+    }
+    else if (bangle.bleAdvert) {
+        bangle.bleAdvert[id] = advert;
+    }
+    else {
+        bangle.bleAdvert = (_b = {},
+            _b[id] = advert,
+            _b);
+    }
+    NRF.setAdvertising(bangle.bleAdvert, options);
+};
+exports.remove = function (id, options) {
+    var bangle = Bangle;
+    if (Array.isArray(bangle.bleAdvert)) {
+        var i = 0;
+        for (var _i = 0, _a = bangle.bleAdvert; _i < _a.length; _i++) {
+            var ad = _a[_i];
+            if (ad[id]) {
+                delete ad[id];
+                var empty = true;
+                for (var _ in ad) {
+                    empty = false;
+                    break;
+                }
+                if (empty)
+                    bangle.bleAdvert.splice(i, 1);
+                break;
+            }
+            i++;
+        }
+    }
+    else if (bangle.bleAdvert) {
+        delete bangle.bleAdvert[id];
+    }
+    NRF.setAdvertising(bangle.bleAdvert, options);
+};

modules/ble_advert.ts

@@ -0,0 +1,55 @@
+declare var exports: any;
+
+type BleAdvert = { [key: string | number]: number[] };
+type BangleWithAdvert = (typeof Bangle) & { bleAdvert?: BleAdvert | BleAdvert[]; };
+type SetAdvertisingOptions = typeof NRF.setAdvertising extends (data: any, options: infer Opts) => any ? Opts : never;
+
+exports.set = (id: string | number, advert: number[], options?: SetAdvertisingOptions) => {
+	const bangle = Bangle as BangleWithAdvert;
+
+	if(Array.isArray(bangle.bleAdvert)){
+		var found = false;
+		for(var ad of bangle.bleAdvert){
+			if(ad[id]){
+				ad[id] = advert;
+				found = true;
+				break;
+			}
+		}
+		if(!found)
+			bangle.bleAdvert.push({ [id]: advert });
+	}else if(bangle.bleAdvert){
+		bangle.bleAdvert[id] = advert;
+	}else{
+		bangle.bleAdvert = {
+			[id]: advert,
+		};
+	}
+
+	NRF.setAdvertising(bangle.bleAdvert, options);
+};
+
+exports.remove = (id: string | number, options?: SetAdvertisingOptions) => {
+	const bangle = Bangle as BangleWithAdvert;
+
+	if(Array.isArray(bangle.bleAdvert)){
+		var i = 0;
+		for(var ad of bangle.bleAdvert){
+			if(ad[id]){
+				delete ad[id];
+				var empty = true;
+				for(var _ in ad){
+					empty = false;
+					break;
+				}
+				if(empty) bangle.bleAdvert.splice(i, 1);
+				break;
+			}
+			i++;
+		}
+	}else if(bangle.bleAdvert){
+		delete bangle.bleAdvert[id];
+	}
+
+	NRF.setAdvertising(bangle.bleAdvert, options);
+};

tsconfig.json

@@ -61,7 +61,7 @@
     "*/*/*.ts",
     "apps/*/*.js", // with checkJs: true
     "*/*/*.d.ts",
-    "modules/*.d.ts",
+    "modules/*.ts",
     "typescript/types/*.d.ts"
   ]
 }