Keep heart rate tracking setting after reboot

src/components/settings/Settings.h

@@ -336,6 +336,15 @@ namespace Pinetime {
         return (settings.dfuAndFsEnabledOnBoot ? DfuAndFsMode::Enabled : DfuAndFsMode::Disabled);
       };
 
+      void SetHeartRateRebootMode(bool enabled) {
+        settingsChanged = settingsChanged || (enabled != settings.heartRateEnabledOnBoot);
+        settings.heartRateEnabledOnBoot = enabled;
+      }
+
+      bool GetHeartRateRebootMode() {
+        return settings.heartRateEnabledOnBoot;
+      }
+
       std::optional<uint16_t> GetHeartRateBackgroundMeasurementInterval() const {
         if (settings.heartRateBackgroundPeriod == std::numeric_limits<uint16_t>::max()) {
           return std::nullopt;
@@ -354,7 +363,7 @@ namespace Pinetime {
     private:
       Pinetime::Controllers::FS& fs;
 
-      static constexpr uint32_t settingsVersion = 0x000a;
+      static constexpr uint32_t settingsVersion = 0x000b;
 
       struct SettingsData {
         uint32_t version = settingsVersion;
@@ -383,6 +392,7 @@ namespace Pinetime {
 
         bool dfuAndFsEnabledOnBoot = false;
         uint16_t heartRateBackgroundPeriod = std::numeric_limits<uint16_t>::max(); // Disabled by default
+        bool heartRateEnabledOnBoot = false;
       };
 
       SettingsData settings;

src/displayapp/screens/HeartRate.cpp

@@ -72,6 +72,7 @@ HeartRate::HeartRate(Controllers::HeartRateController& heartRateController, Syst
 HeartRate::~HeartRate() {
   lv_task_del(taskRefresh);
   lv_obj_clean(lv_scr_act());
+  heartRateController.SaveSettings();
 }
 
 void HeartRate::Refresh() {

src/heartratetask/HeartRateTask.cpp

@@ -100,6 +100,9 @@ void HeartRateTask::Start() {
 
   if (pdPASS != xTaskCreate(HeartRateTask::Process, "Heartrate", 500, this, 1, &taskHandle)) {
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
+  } else {
+    if (settings.GetHeartRateRebootMode())
+      controller.Enable();
   }
 }
 
@@ -147,9 +150,11 @@ void HeartRateTask::Work() {
           // will self-resolve at the next screen on event
           newState = States::ForegroundMeasuring;
           valueCurrentlyShown = false;
+          settings.SetHeartRateRebootMode(true);
           break;
         case Messages::Disable:
           newState = States::Disabled;
+          settings.SetHeartRateRebootMode(false);
           break;
       }
     }
@@ -176,6 +181,10 @@ void HeartRateTask::Work() {
   }
 }
 
+void HeartRateTask::SaveSettings() {
+  settings.SaveSettings();
+}
+
 void HeartRateTask::PushMessage(HeartRateTask::Messages msg) {
   BaseType_t xHigherPriorityTaskWoken = pdFALSE;
   xQueueSendFromISR(messageQueue, &msg, &xHigherPriorityTaskWoken);

src/heartratetask/HeartRateTask.h

@@ -27,6 +27,7 @@ namespace Pinetime {
       void Start();
       void Work();
       void PushMessage(Messages msg);
+      void SaveSettings();
 
     private:
       enum class States : uint8_t { Disabled, Waiting, BackgroundMeasuring, ForegroundMeasuring };