using System;
using System.ComponentModel.DataAnnotations;

using Abp.Domain.Entities.Auditing;

using IwbZero.Authorization.Base.Users;

using Microsoft.AspNet.Identity;

namespace IwbZero.Authorization.Users
{
    /// <summary>
    /// Represents a user.
    /// </summary>
    public abstract class IwbSysUser<TUser> : UserBase, IUser<long>, IFullAudited<TUser>
        where TUser : IwbSysUser<TUser>
    {
        /// <summary>
        /// Maximum length of the <see cref="ConcurrencyStamp"/> property.
        /// </summary>
        public const int MaxConcurrencyStampLength = 128;

        /// <summary>
        /// User name.
        /// User name must be unique for it's tenant.
        /// </summary>
        [Required]
        [StringLength(MaxUserNameLength)]
        public virtual string NormalizedUserName { get; set; }

        /// <summary>
        /// Email address of the user.
        /// Email address must be unique for it's tenant.
        /// </summary>
        [Required]
        [StringLength(MaxEmailAddressLength)]
        public virtual string NormalizedEmailAddress { get; set; }

        /// <summary>
        /// A random value that must change whenever a user is persisted to the store
        /// </summary>
        [StringLength(MaxConcurrencyStampLength)]
        public virtual string ConcurrencyStamp { get; set; } = Guid.NewGuid().ToString();

        // public virtual ICollection<UserToken> Tokens { get; set; }

        public virtual TUser DeleterUser { get; set; }

        public virtual TUser CreatorUser { get; set; }

        public virtual TUser LastModifierUser { get; set; }

        public virtual void SetNormalizedNames()
        {
            NormalizedUserName = UserName?.ToUpperInvariant();
            NormalizedEmailAddress = EmailAddress?.ToUpperInvariant();
        }
    }
}