protected void AssertCollectionInfo <T>(IBoardPostCollectionInfoSet infoSet, Action <T> asserts)
where T : class, IBoardPostCollectionInfo
{
Assert.IsNotNull(infoSet, $"{typeof(T).Name}: infoSet != null");
Assert.IsNotNull(infoSet.Items, $"{typeof(T).Name}: infoSet.Items != null");
var info = infoSet.Items.FirstOrDefault(i => i.GetInfoInterfaceTypes().Any(it => it == typeof(T))) as T;
Assert.IsNotNull(info, $"info is {typeof(T).Name}");
asserts?.Invoke(info);
}
/// <summary>
/// Получить информацию.
/// </summary>
/// <typeparam name="T">Тип информационного интерфейса.</typeparam>
/// <param name="infoSet">Набор информации.</param>
/// <returns>Инофрмация.</returns>
public static T GetCollectionInfo <T>(this IBoardPostCollectionInfoSet infoSet)
where T : class, IBoardPostCollectionInfo
{
if (infoSet?.Items == null)
{
return(null);
}
foreach (var item in infoSet.Items)
{
foreach (var it in item.GetInfoInterfaceTypes() ?? Enumerable.Empty <Type>())
{
if (it == typeof(T) && item is T i)
{
return(i);
}
}
}
return(null);
}
