namespace WPF_1_Start.Models; public class Reservation { public Reservation(RoomId roomId, string? username, DateTime startTime, DateTime endTime) { RoomId = roomId; Username = username; StartTime = startTime; EndTime = endTime; } public RoomId RoomId { get; set; } public string? Username { get; } public DateTime StartTime { get; set; } public DateTime EndTime { get; set; } public TimeSpan Length => EndTime.Subtract(StartTime); public bool Conflicts(Reservation reservation) { if (!reservation.RoomId.Equals(RoomId)) return false; return reservation.StartTime < EndTime && reservation.EndTime > StartTime; } }