SimpleWeatherService: Generate random weather data

Add a new simulation key handler for weather data:
- 'w' will generate new weather, cycling through the various conditions
- 'W' will clear the weather data

README.md

@@ -146,6 +146,8 @@ Using the keyboard the following events can be triggered:
 - `H` ... stop heartrate
 - `i` ... take screenshot
 - `I` ... start/stop Gif screen capture
+- `w` ... generate weather data
+- `W` ... clear weather data
 
 Additionally using the arrow keys the respective swipe gesture can be triggered.
 For example pressing the UP key triggers a `SwipeUp` gesture.

main.cpp

@@ -678,6 +678,7 @@ public:
       debounce('s', 'S', state[SDL_SCANCODE_S], key_handled_s);
       debounce('h', 'H', state[SDL_SCANCODE_H], key_handled_h);
       debounce('i', 'I', state[SDL_SCANCODE_I], key_handled_i);
+      debounce('w', 'W', state[SDL_SCANCODE_W], key_handled_w);
       // screen switcher buttons
       debounce('1', '!'+1, state[SDL_SCANCODE_1], key_handled_1);
       debounce('2', '!'+2, state[SDL_SCANCODE_2], key_handled_2);
@@ -780,6 +781,10 @@ public:
         } else {
           gif_manager.close();
         }
+      } else if (key == 'w') {
+        generate_weather_data(false);
+      } else if (key == 'W') {
+        generate_weather_data(true);
       } else if (key >= '0' && key <= '9') {
         this->switch_to_screen(key-'0');
       } else if (key >= '!'+0 && key <= '!'+9) {
@@ -796,6 +801,22 @@ public:
       batteryController.voltage = batteryController.percentRemaining * 50;
     }
 
+    void generate_weather_data(bool clear) {
+      static int iconId = -1;
+      if (clear) {
+        systemTask.nimble().weather().SetCurrentWeather(0, 0, 0);
+        return;
+      }
+      auto timestamp = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
+      srand((int)timestamp);
+      int temperature = (rand() % 81 - 40) * 100;
+      iconId++;
+      if (iconId > 8) {
+        iconId = 0;
+      }
+      systemTask.nimble().weather().SetCurrentWeather((uint64_t)timestamp, temperature, iconId);
+    }
+
     void handle_touch_and_button() {
       int x, y;
       uint32_t buttons = SDL_GetMouseState(&x, &y);
@@ -958,6 +979,7 @@ private:
     bool key_handled_s = false; // s ... increase step count, S ... decrease step count
     bool key_handled_h = false; // h ... set heartrate running, H ... stop heartrate
     bool key_handled_i = false; // i ... take screenshot, I ... start/stop Gif screen capture
+    bool key_handled_w = false; // w ... generate weather data, W ... clear weather data
     // numbers from 0 to 9 to switch between screens
     bool key_handled_1 = false;
     bool key_handled_2 = false;

sim/components/ble/SimpleWeatherService.cpp

@@ -70,6 +70,13 @@ void SimpleWeatherService::Init() {
   //ble_gatts_add_svcs(serviceDefinition);
 }
 
+void SimpleWeatherService::SetCurrentWeather(uint64_t timestamp, int16_t temperature, int iconId) {
+  SimpleWeatherService::Location cityName;
+  cityName[32] = '\0';
+  currentWeather = SimpleWeatherService::CurrentWeather((uint64_t)timestamp, temperature, temperature, temperature, SimpleWeatherService::Icons(iconId), std::move(cityName));
+  printf("currentWeather: timestamp=%d, temperature=%d, icon=%d\n", currentWeather->timestamp, currentWeather->temperature, currentWeather->iconId);
+}
+
 int SimpleWeatherService::OnCommand(struct ble_gatt_access_ctxt* ctxt) {
 
   return 0;

sim/components/ble/SimpleWeatherService.h

@@ -27,6 +27,7 @@ public:
   explicit SimpleWeatherService(const DateTime& dateTimeController);
 
   void Init();
+  void SetCurrentWeather(uint64_t timestamp, int16_t temperature, int iconId);
 
   int OnCommand(struct ble_gatt_access_ctxt* ctxt);