namespace Fitness_core_BE.DTOs.Facility
{
    public class FacilityDto
    {
        public Guid FacilityId { get; set; }
        public string Name { get; set; } = string.Empty;

        public bool SupportsClasses { get; set; }
        public bool SupportsBooking { get; set; }
        public string? Description { get; set; }
        public int DefaultCapacity { get; set; }
        public int NumberOfUnits { get; set; }
        public decimal PricePerHour { get; set; }
        public bool IsActive { get; set; }
        public DateTime CreatedAt { get; set; }

        // Absorbed from the old PlaceDto -- at most one for now, see AccessDevice.FKFacilityId.
        public Guid? DeviceId { get; set; }
        public string? DeviceName { get; set; }
    }

    public class FacilitySessionDto
    {
        public Guid FacilitySessionId { get; set; }
        public Guid FacilityId { get; set; }
        public string? FacilityName { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public int Capacity { get; set; }
        /// <summary>When true, Capacity above is meaningless -- this occurrence has no cap.</summary>
        public bool IsUnlimitedCapacity { get; set; }
        public int BookedCount { get; set; }
        public bool IsCancelled { get; set; }
        /// <summary>Null for a manually-created session; set for a class occurrence.</summary>
        public Guid? FacilityClassId { get; set; }
        public string? FacilityClassName { get; set; }
        public string? NotHeldReason { get; set; }
        public DateTime? NotHeldAt { get; set; }
    }

    /// <summary>GET api/client/facilities/availability -- how much room is left for a requested
    /// window. A facility can support both booking and classes at once, so the two number pairs
    /// are independently nullable: null means "this facility doesn't offer that mode," not zero.
    /// BookingUnitsFree is forced to 0 when an active (non-cancelled) class occupies the window --
    /// a running class occupies the whole facility, not just a seat.</summary>
    public class FacilityAvailabilityDto
    {
        public Guid FacilityId { get; set; }
        public string FacilityName { get; set; } = string.Empty;
        public bool SupportsClasses { get; set; }
        public bool SupportsBooking { get; set; }
        public int? BookingTotalUnits { get; set; }
        public int? BookingUnitsFree { get; set; }
        public int? ClassTotalCapacity { get; set; }
        public int? ClassUnitsFree { get; set; }
        /// <summary>True when an overlapping class occurrence has no headcount cap -- when set,
        /// ClassTotalCapacity/ClassUnitsFree stay null (unbounded, not zero).</summary>
        public bool ClassIsUnlimitedCapacity { get; set; }
        public decimal PricePerHour { get; set; }
    }
}