using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static EgwCoreLib.Lux.Core.Enums;

namespace EgwCoreLib.Lux.Data.DbModel
{
    // <Auto-Generated>
    // This is here so CodeMaid doesn't reorganize this document
    // </Auto-Generated>

    [Table("Offer")]
    public class OfferModel
    {
        /// <summary>
        /// ID del record
        /// </summary>
        [Key]
        public int OfferID { get; set; }

        /// <summary>
        /// Anno rif offerta
        /// </summary>
        public int RefYear { get; set; } = DateTime.Today.Year;

        /// <summary>
        /// Numero prog offerta nell'anno (da calcolare)
        /// </summary>
        public int RefNum { get; set; } = 0;

        /// <summary>
        /// Indice revisione
        /// </summary>
        public int RefRev { get; set; } = 1;

        /// <summary>
        /// Codice calcolato offerta ANNO.NUMERO.REV
        /// </summary>
        [NotMapped]
        public string OfferCode
        {
            get => $"{RefYear:00}.{RefNum:00000}.{RefRev:00}";
        }

        /// <summary>
        /// Descrizione generale
        /// </summary>
        public string Description { get; set; } = "";

        /// <summary>
        /// ID Cliente
        /// </summary>
        public int CustomerID { get; set; }

        /// <summary>
        /// ID Dealer
        /// </summary>
        public int DealerID { get; set; }

        /// <summary>
        /// Validità offerta
        /// </summary>
        public DateTime ValidUntil { get; set; } = DateTime.Now.AddMonths(1);

        /// <summary>
        /// DataOra inserimento
        /// </summary>
        public DateTime Inserted { get; set; } = DateTime.Now;

        /// <summary>
        /// DataOra ultima modifica
        /// </summary>
        public DateTime Modified { get; set; } = DateTime.Now;


        /// <summary>
        /// Enum stato offerta
        /// </summary>
        public OfferStates OffertState { get; set; } = OfferStates.Open;

        /// <summary>
        /// Numero Item compresi
        /// </summary>
        [NotMapped]
        public int NumItems
        {
            get => OfferRowNav?.Count ?? 0;
        }

        /// <summary>
        /// Imposto totale offerta
        /// </summary>
        [NotMapped]
        public double TotalCost
        {
            get => OfferRowNav?.Sum(x => x.Cost) ?? 0;
        }

#if false
        /// <summary>
        /// ID Ordine (nullo se non c'è ordine)
        /// </summary>
        public int? OrderID { get; set; } = null;

        /// <summary>
        /// Navigazione Ordine
        /// </summary>
        [ForeignKey("OrderID")]
        public virtual OrderModel? OrderNav { get; set; } = null; 
#endif

        /// <summary>
        /// Navigazione Customer
        /// </summary>
        [ForeignKey("CustomerID")]
        public virtual CustomerModel CustomerNav { get; set; } = null!;

        /// <summary>
        /// Navigazione Dealer
        /// </summary>
        [ForeignKey("DealerID")]
        public virtual DealerModel DealerNav { get; set; } = null!;

        /// <summary>
        /// Navigazione alle righe offerta
        /// </summary>
        public virtual ICollection<OfferRowModel> OfferRowNav { get; set; } = new List<OfferRowModel>();
    }
}