/// This file is a part of RSS Bot for Telegram.
/// License: MIT
/// Author: CrazyHackGUT aka Kruzya (Sergey Gut) <kruzefag@gmail.com>
/// 

using System;
using System.ComponentModel.DataAnnotations;

namespace Kruzya.TelegramBot.RichSiteSummary.Data
{
    /// <summary>
    /// Represents a subscription in database.
    /// </summary>
    public class Subscriber
    {
        /// <summary>
        /// The unique Subscription identifier.
        /// </summary>
        [Key]
        public Guid SubscriptionId { get; set; }
        
        /// <summary>
        /// The Telegram subscriber id.
        /// </summary>
        [Required]
        public Int64 SubscriberId { get; set; }
        
        /// <summary>
        /// Unique feed identifier related with this Subscription. Identifies what user is read.
        /// </summary>
        public Guid FeedId { get; set; }
        
        /// <summary>
        /// Feed related with this Subscription. Identifies what user is read.
        /// </summary>
        [Required]
        public virtual Feed Feed { get; set; }

        /// <summary>
        /// When user is subscribed on this feed.
        /// </summary>
        [Required]
        public DateTime SubscribedAt { get; set; }

        public Subscriber()
        {
            SubscriptionId = new Guid();
            SubscribedAt = DateTime.Now;
        }

        public Subscriber(Feed feed) : base()
        {
            Feed = feed;
        }
    }
}