using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Fitness_core_BE.Models
{
    /// <summary>A physical area of the club (e.g. "Pool Area", "Indoor Gym", "Court 1") that can
    /// both be booked (Booking/FacilitySession below) and fitted with its own fingerprint/face
    /// terminal for membership-plan access scoping (AccessDevice.FKFacilityId,
    /// CustomerPlanFacility). Merged from the formerly-separate Facility (bookable capacity) and
    /// Place (access zone) concepts -- see the booking redesign plan for the migration that
    /// carried Place's rows over reusing this table's original PlaceId values as FacilityId.</summary>
    public class Facility
    {
        [Key]
        public Guid FacilityId { get; set; }

        public Guid FKClientId { get; set; }
        [ForeignKey(nameof(FKClientId))]
        public Client Client { get; set; }

        [MaxLength(128)]
        public string Name { get; set; } = string.Empty;

        /// <summary>"Scheduled" | "AdHoc". Scheduled: staff pre-creates fixed-time
        /// FacilitySessions that many bookings share one capacity pool against (classes).
        /// AdHoc: a booking claims one of NumberOfUnits identical units directly for an
        /// arbitrary time window, no pre-created session needed (courts/pool).</summary>
        public string BookingMode { get; set; } = "Scheduled";

        [MaxLength(500)]
        public string? Description { get; set; }

        /// <summary>Default per-session headcount limit when BookingMode == "Scheduled"; a
        /// specific FacilitySession can override.</summary>
        public int DefaultCapacity { get; set; } = 1;

        /// <summary>Number of identical, independently-bookable units when BookingMode ==
        /// "AdHoc" (e.g. 3 for "3 courts") -- availability is this minus overlapping
        /// non-cancelled/non-completed AdHoc bookings in the requested window.</summary>
        public int NumberOfUnits { get; set; } = 1;

        /// <summary>Hourly rate used to compute a guest AdHoc booking's suggested AmountCharged
        /// (PricePerHour * duration-in-hours) at creation time.</summary>
        public decimal PricePerHour { get; set; } = 0m;

        public bool IsActive { get; set; } = true;
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    }
}