Files
lct2025-lonolith/StoreService/Database/Entities/StoreDiscount.cs
2025-09-25 22:21:41 +03:00

37 lines
1.2 KiB
C#

using System.Diagnostics.CodeAnalysis;
namespace StoreService.Database.Entities;
/// <summary>
/// Percentage discount that can apply to one or more store items within a time window.
/// </summary>
public class StoreDiscount
{
#region Properties
public long Id { get; set; }
public decimal Percentage { get; set; } // 0 - 100 (%)
public string? Description { get; set; }
public DateTime FromDate { get; set; }
public DateTime UntilDate { get; set; }
public bool IsCanceled { get; set; }
#endregion
#region Navigation
public ICollection<StoreDiscountItem> DiscountItems { get; set; } = new List<StoreDiscountItem>();
public ICollection<StoreOrderItemDiscount> OrderItemDiscounts { get; set; } = new List<StoreOrderItemDiscount>();
#endregion
#region Helpers
/// <summary>
/// Checks whether discount is active at provided moment (default: now) ignoring cancellation flag (if canceled returns false).
/// </summary>
public bool IsActive(DateTime? at = null)
{
if (IsCanceled) return false;
var moment = at ?? DateTime.UtcNow;
return moment >= FromDate && moment <= UntilDate;
}
#endregion
}