using System;
using System.ComponentModel.DataAnnotations;

namespace IO.Swagger.Models.db
{
    /// <summary>
    /// The basic unit of a transaction
    /// </summary>
    public class Transaction
    {
        /// <summary>
        /// Gets or sets the transaction identifier.
        /// </summary>
        /// <value>
        /// The transaction identifier.
        /// </value>
        public int TransactionId { get; set; }
        /// <summary>
        /// Gets or sets the user identifier of the wallet the money came from.
        /// </summary>
        /// <value>
        /// From user identifier.
        /// </value>
        public int FromUserId { get; set; }
        /// <summary>
        /// Gets or sets the user that the money came from.
        /// </summary>
        /// <value>
        /// From user.
        /// </value>
        public User FromUser { get; set; }
        /// <summary>
        /// Gets or sets the user identifier of the wallet the money went to.
        /// </summary>
        /// <value>
        /// From user identifier.
        /// </value>
        public int ToUserId { get; set; }
        /// <summary>
        /// Gets or sets the user that the money went to.
        /// </summary>
        /// <value>
        /// From user.
        /// </value>
        public User ToUser { get; set; }

        /// <summary>
        /// Gets or sets the amount exchanged in the transaction.
        /// </summary>
        /// <value>
        /// The amount.
        /// </value>
        [Range(0.01, float.MaxValue)]
        public float Amount { get; set; }

        /// <summary>
        /// Gets or sets the memo of the transaction.
        /// </summary>
        /// <value>
        /// The memo.
        /// </value>
        [Required]
        [StringLength(32, MinimumLength = 2)]
        public string Memo { get; set; }

        /// <summary>
        /// Gets or sets the currency the transaction amount was issued in.
        /// </summary>
        /// <value>
        /// The currency.
        /// </value>
        public Currency Currency { get; set; }
        /// <summary>
        /// Gets or sets the currency identifier the transaction amount was issued in.
        /// </summary>
        /// <value>
        /// The currency identifier.
        /// </value>
        public int CurrencyId { get; set; }
        /// <summary>
        /// Gets or sets the time the transaction occured.
        /// </summary>
        /// <value>
        /// The transaction time.
        /// </value>
        public DateTime TransactionTime { get; set; } = DateTime.UtcNow;
    }
}