using System.ComponentModel.DataAnnotations;

namespace Gremlin_BlazorServer.Data.EntityClasses;

public class Account : IMetadata
//: IEquatable<Account>
{
  //primary key:
  [Required] public uint AccountId { get; set; }

  //foreign keys:
  // [Required] public uint ParentAccountId { get; set; }
  public string? AccountTypeCode { get; set; }
  public string? SubMarketCode { get; set; }

  //navigation properties:
  public AccountType? AccountType { get; set; }
  public SubMarket? SubMarket { get; set; }
  public IList<Contact>? Contacts { get; set; }
  public IList<SalesRep> SalesReps { get; set; }
  // public IList<CustomDescription>? CustomDescriptions { get; set; }

  //class properties:
  [Required] public string? AccountName { get; set; }
  public string Notes { get; set; } = string.Empty;
  [Required] public string? Street { get; set; }
  [Required] public uint Zip { get; set; }
  [Required] public string? City { get; set; }
  public string FloorOrBuilding { get; set; } = string.Empty;
  public float Longitude { get; set; }
  public float Latitude { get; set; }
  public string PhoneNumber { get; set; } = string.Empty;
  public string FaxNumber { get; set; } = string.Empty;
  public string Webpage { get; set; } = string.Empty;
  public string EMail { get; set; } = string.Empty;

  //Agilent-specific Properties:
  public uint SapAccountNumber { get; set; }
  public DateTime AccountCreatedInSapOn { get; set; }

  //metadata:
  public DateTime DataCreationDate { get; set; } = DateTime.Now;
  public DateTime DataModificationDate { get; set; } = DateTime.Now;
  public DateTime DataValidFrom { get; set; } = DateTime.Now;
  public DateTime DataValidUntil { get; set; } = DateTime.MaxValue;
  public string DataModificationByUser { get; set; } = "Gremlin_BlazorServer";
  public uint DataVersionNumber { get; set; }
  public string? DataVersionComment { get; set; } = string.Empty;
  public string DataStatus { get; set; } = "Active";

  //IBase
  //tbd

  //public bool Equals(Account other)
  //{
  //    if (other == null) return false;
  //    if (this == null) return false;
  //    if (this.SAPAccountNumber == other.SAPAccountNumber) return true;
  //    else return false;
  //}

  //public static bool operator ==(Account account1, Account account2)
  //{
  //    if (account1.SAPAccountNumber == 0) return false;
  //    if (account2.SAPAccountNumber == 0) return false;
  //    if (account1.SAPAccountNumber == account2.SAPAccountNumber) return true;
  //    else return false;
  //}

  //public static bool operator !=(Account account1, Account account2)
  //{
  //    if (account1.SAPAccountNumber == 0) return false;
  //    if (account2.SAPAccountNumber == 0) return false;
  //    if (account1.SAPAccountNumber == account2.SAPAccountNumber) return false;
  //    else return true;
  //}

  //public override bool Equals(object obj)
  //{
  //    if (obj == null) return false;

  //    Account accountObj = obj as Account;
  //    if (accountObj == null) return false;
  //    else return base.Equals(obj);
  //}

  //public override int GetHashCode()
  /////<summary>
  /////Returns the (unique) SAP Account ID.
  /////</summary>
  //{
  //    return Convert.ToInt32(this.SAPAccountNumber);
  //}

  public List<Account> AddIfUniqueTo(List<Account> accounts)
  {
    if (accounts.Count > 0 && SapAccountNumber == accounts[^1].SapAccountNumber) return accounts;

    foreach (Account account in accounts)
    {
      if (SapAccountNumber == account.SapAccountNumber)
        return accounts;
    }

    accounts.Add(this);
    return accounts;
  }
}