WeatherModel.fromJson constructor

WeatherModel.fromJson(Map<String, dynamic> json)

Implementation

factory WeatherModel.fromJson(Map<String, dynamic> json) {
  final currentWeather = json['list'][0];
  final weatherList = json['list'] as List;

  final today = DateTime.now();
  double tempMinToday = double.maxFinite;
  double tempMaxToday = -double.maxFinite;

  for (var forecast in weatherList) {
    final forecastDate = DateTime.parse(forecast['dt_txt']);
    if (forecastDate.year == today.year &&
        forecastDate.month == today.month &&
        forecastDate.day == today.day) {
      final temp = (forecast['main']['temp'] as num).toDouble();
      tempMinToday = min(tempMinToday, temp);
      tempMaxToday = max(tempMaxToday, temp);
    }
  }

  if (tempMinToday == double.maxFinite) {
    tempMinToday = (currentWeather['main']['temp_min'] as num).toDouble();
  }
  if (tempMaxToday == -double.maxFinite) {
    tempMaxToday = (currentWeather['main']['temp_max'] as num).toDouble();
  }

  final rain = currentWeather['rain']?['3h'] as num?;
  final snow = currentWeather['snow']?['3h'] as num?;

  return WeatherModel(
    cityName: json['city']['name'],
    temperature: (currentWeather['main']['temp'] as num).toDouble(),
    tempMin: tempMinToday,
    tempMax: tempMaxToday,
    condition: currentWeather['weather'][0]['main'],
    description: currentWeather['weather'][0]['description'],
    icon: currentWeather['weather'][0]['icon'],
    windSpeed: (currentWeather['wind']['speed'] as num).toDouble(),
    windDirection: currentWeather['wind']['deg'],
    humidity: currentWeather['main']['humidity'],
    pressure: currentWeather['main']['pressure'],
    clouds: currentWeather['clouds']['all'],
    lastUpdated: DateTime.now(),
    rainVolume: rain?.toDouble() ?? 0.0,
    snowVolume: snow?.toDouble() ?? 0.0,
  );
}