telegram-bot/modules/RichSiteSummary/Data/Feed.cs

// 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.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;

namespace Kruzya.TelegramBot.RichSiteSummary.Data;

/// <summary>
/// Represents a feed in database.
/// </summary>
public class Feed : RepresentableEntity
{
    #region RepresentableEntity
    protected override string ViewableText
    {
        get => Title;
    }

    protected override string ViewableUrl
    {
        get => HomePage;
    }
    #endregion

    /// <summary>
    /// The unique feed id.
    /// </summary>
    [Key]
    public Guid FeedId { get; set; }
        
    /// <summary>
    /// The feed URL.
    /// </summary>
    [Required]
    public string Url { get; set; }
        
    /// <summary>
    /// The home page for this feed.
    /// </summary>
    [Required]
    public string HomePage { get; set; }
        
    /// <summary>
    /// Feed title.
    /// </summary>
    [MaxLength(256)]
    [Required]
    public string Title { get; set; }
        
    /// <summary>
    /// DateTime when feed fetched successfully in last time.
    /// </summary>
    [Required]
    public DateTime UpdatedAt { get; set; }
        
    /// <summary>
    /// This flag indicates, bot should monitor changes in post date, or not.
    /// </summary>
    [Required]
    [DefaultValue(false)]
    public bool WatchPostDate { get; set; }

    [Required]
    [DefaultValue(false)]
    public bool IsPrivate { get; set; }

    public Feed()
    {
        FeedId = new Guid();
        UpdatedAt = DateTime.Now;
    }

    /// <summary>
    /// All posts from this feed.
    /// </summary>
    public virtual ICollection<Post> Posts { get; set; }
        
    /// <summary>
    /// All exists subscriber for this feed.
    /// </summary>
    public virtual ICollection<Subscriber> Subscribers { get; set; }

    public override string ToString() => Title;
}