/// <summary>
/// List the photos with the most views, comments or favorites.
/// </summary>
/// <param name="date">Stats will be returned for this date.
/// A day according to Flickr Stats starts at midnight GMT for all users,
/// and timestamps will automatically be rounded down to the start of the day.
/// If no date is provided, all time view counts will be returned.</param>
/// <param name="sort">The order in which to sort returned photos.
/// Defaults to views. The possible values are views, comments and favorites. </param>
/// <param name="page">The page of results to return.
/// If this argument is omitted, it defaults to 1.</param>
/// <param name="perPage">Number of photos to return per page.
/// If this argument is omitted, it defaults to 25. The maximum allowed value is 100.</param>
/// <param name="callback">Callback method to call upon return of the response from Flickr.</param>
public void StatsGetPopularPhotosAsync(DateTime date, PopularitySort sort, int page, int perPage,
Action <TwentyThreeResult <PopularPhotoCollection> > callback)
{
CheckRequiresAuthentication();
var parameters = new Dictionary <string, string>();
parameters.Add("method", "flickr.stats.getPopularPhotos");
if (date != DateTime.MinValue)
{
parameters.Add("date", UtilityMethods.DateToUnixTimestamp(date));
}
if (sort != PopularitySort.None)
{
parameters.Add("sort", UtilityMethods.SortOrderToString(sort));
}
if (page > 0)
{
parameters.Add("page", page.ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
}
if (perPage > 0)
{
parameters.Add("per_page", perPage.ToString(System.Globalization.NumberFormatInfo.InvariantInfo));
}
GetResponseAsync <PopularPhotoCollection>(parameters, callback);
}
