using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Text.Json.Serialization;
using eprintServer.Enums;

namespace eprintServer.Entities;

[Table("invoices")]
public class Invoice
{
    [Key]
    [Column("id")]
    public long Id { get; set; }

    [Column("user_id")]
    public long UserId { get; set; }

    [JsonIgnore]
    [ForeignKey(nameof(UserId))]
    public User User { get; set; }

    [Column("order_id")]
    public long OrderId { get; set; }

    [JsonIgnore]
    [ForeignKey(nameof(OrderId))]
    public Order Order { get; set; }

    [NotMapped]
    public long UserIdentifier => User?.Id ?? UserId;
    [NotMapped]
    public string? UserName => User?.Username;

    [Column("invoice_date")]
    public DateTime InvoiceDate { get; set; } = DateTime.UtcNow;

    [Column("total_amount")]
    public decimal TotalAmount { get; set; }

    [Column("discount_percentage")]
    public double DiscountPercentage { get; set; }

    [Column("discount_amount")]
    public decimal DiscountAmount { get; set; }

    [Column("tax_amount")]
    public decimal TaxAmount { get; set; }

    [Column("status")]
    public InvoiceStatus Status { get; set; } = InvoiceStatus.SUBMITTED;

    public ICollection<OrderItem> InvoiceItems { get; set; } = new List<OrderItem>();

    [Column("refund_date")]
    public DateTime? RefundDate { get; set; }


    [Column("timestmp")]
    public DateTime Timestamp { get; set; } = DateTime.UtcNow;
}