public static IEnumerable<Tweet> GetTweetsForUser(User user, ILookup<string, Tweet> tweets)
{
var result = new List<Tweet>();
result.AddRange(tweets[user.Name.ToUpper()]);
foreach (var follow in user.Follows)
{
result.AddRange(tweets[follow.Name.ToUpper()]);
}
return result.OrderBy(p => p.Sequence);
}
public static User GetOrCreateUser(string name, Dictionary<string, User> existing)
{
User find = null;
string upperTest = name.ToUpper();
if (existing.TryGetValue(upperTest, out find) == false)
{
find = new User(name);
existing.Add(upperTest, find);
}
return find;
}