/// <summary>
/// Constructs a weather report object out of a ipma object
/// that comes from IPMA's API, extracting only the relevant information.
/// </summary>
/// <param name="ipma">IPMA object from JSON deserialization of IPMA's API response</param>
/// <param name="date">The weather forecast date of the report</param>
/// <param name="locationcode">The location code of the city in the weather report</param>
/// <returns>The WeatherReport object constructed from IPMA info</returns>
private WeatherReport IPMAToWeatherReport(IPMA ipma, DateTime date, string locationcode)
{
WeatherReport wr = new WeatherReport();
wr.Location = locationCodes[locationcode];
wr.Date = date;
wr.TempMax = ipma.tMax.ToString();
wr.TempMin = ipma.tMin.ToString();
wr.WeatherType = forecastDescPT[int.Parse(ipma.idTipoTempo)];
return(wr);
}
/// <summary>
/// Gets weather forecast info from IPMA's API for a given date and location.
/// It deserializes info into multiple IPMA objects and selects the relevant one
/// (the one that includes average temp for the date provided)
/// and returns the final weather report object constructed from this IPMA object
/// </summary>
/// <param name="locationCode">The IPMA code for the location for which the weather forecast is to be obtained</param>
/// <param name="dateOfForecast">The date for which the weather forecast is to be obtained</param>
/// <returns>Final WeatherReport for a given location and date</returns>
private async Task <WeatherReport> GetWeatherReport(string locationCode, DateTime dateOfForecast)
{
//get and deserialize all forecast (for all date/time available) for a given location
var url = $"http://api.ipma.pt/json/alldata/{locationCode}.json";
var response = await _client.GetAsync(url);
string jsonString = response.Content.ReadAsStringAsync().Result;
List <IPMA> l = JsonConvert.DeserializeObject <List <IPMA> >(jsonString);
//select the ipma object corresponding to the given date of forecast and to a time which has average day temperature available
string aux = dateOfForecast.ToString("yyyy-MM-dd");
IPMA ipma = l.Where(x => x.dataPrev.StartsWith(aux) && !x.tMax.StartsWith("-99")).FirstOrDefault();
return(IPMAToWeatherReport(ipma, dateOfForecast, locationCode));
}
