Implement cloud cover

Weather.cpp

@@ -1,4 +1,8 @@
 #include "Weather.h"
+#include <Arduino.h>
+#include <ESP8266HTTPClient.h>
+#include <ArduinoJson.h>
+
 #include <Arduino.h>
 
 #include "openWeatherMapApiKey.h"
@@ -7,6 +11,36 @@ Weather::Weather(char *lat, char *lon){
 	sprintf(_url, WEATHER_URL, lat, lon, OPEN_WEATHER_MAP_API_KEY);
 }
 
-void Weather::update(){
+String Weather::getWeatherJson() {
+	HTTPClient http;
+	http.begin(_url);
+	int httpCode = http.GET();
+	String result = "";
+	if (httpCode > 0)
+		result = http.getString();
+	http.end();
 
+	return result;
+}
+
+WeatherCondition Weather::parseCondition(int weatherId){
+	if (weatherId > 200 && weatherId < 300)
+		return WeatherCondition::Thunder;
+	if (weatherId > 300 && weatherId < 700)
+		return WeatherCondition::Rain;
+	if (weatherId < 800)
+		return WeatherCondition::Other;
+	return WeatherCondition::Clear;
+}
+
+void Weather::update(){
+	String json = getWeatherJson();
+	StaticJsonBuffer<2048> jsonBuffer;
+	JsonObject &root = jsonBuffer.parseObject(json);
+
+	if (!root.success())
+		return;
+
+	_cloudCover = root["clouds"]["all"];
+	_condition = parseCondition(root["weather"][0]["id"]);
 }

Weather.h

@@ -1,9 +1,25 @@
-#define WEATHER_URL "https://api.openweathermap.org/data/2.5/weather?lat=%s&lon=%s&appid=%s"
+#include <Arduino.h>
+
+#define WEATHER_URL "http://api.openweathermap.org/data/2.5/weather?lat=%s&lon=%s&appid=%s"
+
+enum WeatherCondition
+{
+	Clear,
+	Rain,
+	Thunder,
+	Other
+};
 
 class Weather{
-	char _url[100];
+	char _url[120];
+	int _cloudCover;
+	WeatherCondition _condition;
+	String getWeatherJson();
+	WeatherCondition parseCondition(int weatherId);
 
   public:
 	Weather(char *lat, char *lon);
 	void update();
+	int getCloudCover() { return _cloudCover; }
+	WeatherCondition getCondition() { return _condition; }
 };

monitor.ino

@@ -34,7 +34,7 @@ NaturalLight _naturalLight = NaturalLight(LATITUDE, LONGITUDE, TIMEZONE_OFFSET);
 Weather _weather = Weather(LATITUDE, LONGITUDE);
 
 CRGB _leds[LED_COUNT];
-
+byte targetBrightness = 255;
 
 void waitForWiFi() {
 	if (WiFi.status() == WL_CONNECTED)
@@ -98,16 +98,31 @@ float getHeatIndex() {
 	return HEAT_INDEX_MAX * indexMultiplier;
 }
 
+void setTargetBrightness(){
+	float multiplier = (100 - (float)_weather.getCloudCover()) / 100.0;
+	if (_weather.getCondition() == WeatherCondition::Other)
+		multiplier /= 2.0;
+
+	float brightness = 255.0 * multiplier;
+	FastLED.setBrightness(brightness);
+}
+
 void doLighting() {
-	EVERY_N_SECONDS(1) {
+	EVERY_N_SECONDS(10800){
+		_naturalLight.update();
+	}
+
+	EVERY_N_SECONDS(10){
+		_weather.update();
+		setTargetBrightness();
+	}
+
+	EVERY_N_SECONDS(1)
+	{
 		CRGB colour = ColorFromPalette(HeatColors_p, getHeatIndex());
 		fill_solid(_leds, LED_COUNT, colour);
 		FastLED.show();
 	}
-
-	EVERY_N_SECONDS(10800){
-		_naturalLight.update();
-	}
 }
 
 void publishReadings(){