public static WeatherDetails GetWeather(double latitude, double longitude)
{
try
{
string apiKey = "c9f0be46ae133902122810";
string url = string.Format("http://free.worldweatheronline.com/feed/weather.ashx?q={0},{1}&format=xml&num_of_days=1&key={2}", latitude, longitude, apiKey);
string xml = WebHelper.ReadUrl(url);
XmlDocument document = new XmlDocument();
document.LoadXml(xml);
WeatherDetails weatherDetails = new WeatherDetails();
//read current weather
XmlNode currentNode = document.SelectSingleNode("data/current_condition");
if (currentNode != null)
{
WeatherInfo weather = new WeatherInfo();
weather.ObservedOn = DateTime.Now;
weather.WeatherDate = DateTime.Now.Date;
weather.Temperature_C_Min = Convert.ToSingle(currentNode.SelectSingleNode("temp_C").InnerText);
weather.Temperature_C_Max = Convert.ToSingle(currentNode.SelectSingleNode("temp_C").InnerText);
weather.Temperature_F_Min = Convert.ToSingle(currentNode.SelectSingleNode("temp_F").InnerText);
weather.Temperature_F_Max = Convert.ToSingle(currentNode.SelectSingleNode("temp_F").InnerText);
weather.Description = currentNode.SelectSingleNode("weatherDesc").InnerText;
weather.WindSpeed_kmph = Convert.ToSingle(currentNode.SelectSingleNode("windspeedKmph").InnerText);
weather.WindDirection = currentNode.SelectSingleNode("winddir16Point").InnerText;
weather.Humidity = currentNode.SelectSingleNode("humidity").InnerText;
weatherDetails.CurrentWeather = weather;
}
//read future weathers
XmlNodeList futureNodes = document.SelectNodes("data/weather");
foreach (XmlNode node in futureNodes)
{
WeatherInfo weather = new WeatherInfo();
weather.ObservedOn = DateTime.Now;
weather.WeatherDate = DateTime.Now.AddDays(1).Date;
weather.Temperature_C_Min = Convert.ToSingle(node.SelectSingleNode("tempMinC").InnerText);
weather.Temperature_C_Max = Convert.ToSingle(node.SelectSingleNode("tempMaxC").InnerText);
weather.Temperature_F_Min = Convert.ToSingle(node.SelectSingleNode("tempMinF").InnerText);
weather.Temperature_F_Max = Convert.ToSingle(node.SelectSingleNode("tempMaxF").InnerText);
weather.Description = node.SelectSingleNode("weatherDesc").InnerText;
weather.WindSpeed_kmph = Convert.ToSingle(node.SelectSingleNode("windspeedKmph").InnerText);
weather.WindDirection = node.SelectSingleNode("winddirection").InnerText;
weather.Humidity = string.Empty;
weatherDetails.FutureWeathers.Add(weather);
}
return(weatherDetails);
}
catch (Exception exception)
{
Log.Error(exception);
}
return(null);
}
public static WeatherDetails GetWeather(double latitude, double longitude)
{
try
{
string url = string.Format("http://api.wunderground.com/api/{0}/conditions/q/{1},{2}.json", ApiKey, latitude, longitude);
string jsonString = WebHelper.ReadUrl(url);
BsonDocument json = BsonDocument.Parse(jsonString);
BsonDocument observation = (BsonDocument)json["current_observation"];
//build 'WeatherDetails' object
WeatherDetails weatherDetails = new WeatherDetails();
weatherDetails.CurrentWeather.ObservedOn = DateTime.Now;
weatherDetails.CurrentWeather.WeatherDate = DateTime.Now.Date;
weatherDetails.CurrentWeather.Temperature_C_Min = float.Parse(observation["temp_c"].ToString());
weatherDetails.CurrentWeather.Temperature_C_Max = weatherDetails.CurrentWeather.Temperature_C_Min;
weatherDetails.CurrentWeather.Temperature_F_Min = float.Parse(observation["temp_f"].ToString());
weatherDetails.CurrentWeather.Temperature_F_Max = weatherDetails.CurrentWeather.Temperature_F_Min;
weatherDetails.CurrentWeather.Description = observation["weather"].ToString();
weatherDetails.CurrentWeather.WindSpeed_kmph = float.Parse(observation["wind_kph"].ToString());
weatherDetails.CurrentWeather.WindDirection = observation["wind_dir"].ToString();
weatherDetails.CurrentWeather.Humidity = observation["relative_humidity"].ToString();
return(weatherDetails);
//return weatherDetails.CurrentWeather.Temperature_C_Min;
}
catch (Exception exception)
{
Log.Error(exception);
}
return(null);
//return -1;
}
public async static Task ReadWeather()
{
WeatherRead = false;
//ignore if weather is read very recently
if (CurrentWeather != null && DateTime.Now.Subtract(CurrentWeather.FetchedOn).TotalMinutes < Constants.WEATHER_READ_INTERVAL)
{
return;
}
try
{
if (LocationHelper.CurrentPosition == null)
{
await LocationHelper.ReadLocation(false);
}
if (LocationHelper.CurrentPosition != null)
{
WeatherEntry entry = new WeatherEntry();
entry.Latitude = LocationHelper.CurrentPosition.Coordinate.Latitude;
entry.Longitude = LocationHelper.CurrentPosition.Coordinate.Longitude;
WeatherDetails weatherDetails = Wunderground.GetWeather(entry.Latitude, entry.Longitude);
if (weatherDetails != null)
{
entry.Temperature = Math.Round(weatherDetails.CurrentWeather.Temperature_C_Min, 2);
}
entry.Forecast = Wunderground.GetForecast(entry.Latitude, entry.Longitude);
entry.FetchedOn = DateTime.Now;
CurrentWeather = entry;
WeatherHistoryDAC.Insert(CurrentWeather);
WeatherRead = true;
}
}
catch (Exception exception)
{
Log.Error(exception);
}
}
