/// <summary>
/// Identifies the team that has the least point difference.
/// </summary>
/// <param name="data"> The football data we are asking the question against. </param>
/// <returns> The result of asking the question. </returns>
public async Task <IReturnType> NotifyAsync(IList <IDataType> data)
{
_logger.Information($"{GetType().Name} (NotifyAsync): Starting to calculate the result.");
// Contract requirements.
if (data is null)
{
throw new ArgumentNullException(nameof(data), "The football data can not be null.");
}
if (data.Count < 1)
{
throw new ArgumentException("The football data must contain data.");
}
var result = await Task.Factory.StartNew(() =>
{
var teamWithSmallestPointRange = string.Empty;
var smallestRange = int.MaxValue;
foreach (var type in data)
{
if (type.Data is Football football)
{
// Contract requirements. Duplicating the validation here. Should we?
var footballValidationResult = football.IsValid();
if (!footballValidationResult.IsValid)
{
throw new ArgumentException(footballValidationResult.Errors.Select(m => m.ErrorMessage).ToString());
}
var range = football.CalculatePointDifference();
if (range < smallestRange)
{
smallestRange = range;
teamWithSmallestPointRange = football.TeamName;
}
}
}
IReturnType team = new ContainingResultType {
ProcessResult = teamWithSmallestPointRange
};
return(team);
}).ConfigureAwait(false);
_logger.Information($"{GetType().Name} (NotifyAsync): Notification complete.");
return(result);
}
public async Task <IReturnType> NotifyAsync(IList <IDataType> data)
{
_logger.Information($"{GetType().Name} (NotifyAsync): Starting to calculate the result.");
// Contract requirements.
if (data is null)
{
throw new ArgumentNullException(nameof(data), "The weather data can not be null.");
}
if (data.Count < 1)
{
throw new ArgumentException("The weather data must contain data.");
}
var result = await Task.Factory.StartNew(() =>
{
var dayOfLeastChange = 0;
var minimumTemperatureChange = float.MaxValue;
foreach (var type in data)
{
if (type.Data is Weather weather)
{
// Contract requirements. Duplicating the validation here. Should we?
var weatherValidationResult = weather.IsValid();
if (!weatherValidationResult.IsValid)
{
throw new ArgumentException(weatherValidationResult.Errors.Select(m => m.ErrorMessage).ToString());
}
var temperatureChange = weather.CalculateWeatherChange();
_logger.Debug($"{GetType().Name} (NotifyAsync): Temperature change calculated: {temperatureChange}.");
if (temperatureChange < minimumTemperatureChange)
{
minimumTemperatureChange = temperatureChange;
dayOfLeastChange = weather.Day;
}
}
}
IReturnType day = new ContainingResultType {
ProcessResult = dayOfLeastChange
};
return(day);
}).ConfigureAwait(false);
_logger.Information($"{GetType().Name} (NotifyAsync): Notification complete.");
return(result);
}
