Facepunch Events

// TODO: Implement BanEventArgs, ItemEventArgs, PostEventArgs, and RatingEventArgs.
// TODO: Implement Length and Ratings.

// Should we route these events based on user?
// What about tense?
// Events are handled by SynchronizationHandler.

using HtmlAgilityPack;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Facepunch
{
    internal static class Helpers
    {
        internal static int GetQuery (this IEnumerable<HtmlNode> node, int index, string key)
        {
            return int.Parse (HttpUtility.ParseQueryString (node.ElementAt (index).Attributes ("href")).Get (key));
        }

        internal static string GetText (this IEnumerable<HtmlNode> node, int index)
        {
            return string.Intern (node.ElementAt (index).InnerText);
        }
    }

    public class BanEventArgs : ItemEventArgs
    {
        public int    ModeratorId   { get; }
        public int    PostId        { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }
          /*public Length Length        { get; }*/
        public string Reason        { get; }

        internal BanEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ModeratorId   = a.GetQuery (0, "u");
            PostId        = a.GetQuery (4, "p");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
              /*Length        = b.GetText  (0);*/
            Reason        = b.GetText  (1);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} banned {UserName} for {/**/} in {ThreadName} with the reason {Reason}.";
        }
    }

    public class BanPermanentEventArgs : ItemEventArgs
    {
        public int    ModeratorId   { get; }
        public int    PostId        { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }
        public string Reason        { get; }

        internal BanPermanentEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ModeratorId   = a.GetQuery (0, "u");
            PostId        = a.GetQuery (4, "p");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} permabanned {UserName} in {ThreadName} with the reason {Reason}.";
        }
    }

    public class CloseBigEventArgs : ItemEventArgs
    {
        public int    ThreadId   { get; }
        public string ThreadName { get; }

        internal CloseBigEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");

            ThreadId   = a.GetQuery (0, "t");
            ThreadName = a.GetText  (0);
        }

        public override string ToString ()
        {
            return $"The thread {ThreadName} was closed because it had over 5000 posts.";
        }
    }

    public class CloseEventArgs : ItemEventArgs
    {
        public int    ForumId       { get; }
        public int    ModeratorId   { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ForumName     { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }
        public string Reason        { get; }

        internal CloseEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ForumId       = a.GetQuery (5, "f");
            ModeratorId   = a.GetQuery (0, "u");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ForumName     = a.GetText  (5);
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} closed {UserName}'s thread called {ThreadName} in {ForumName} with the reason {Reason}.";
        }
    }

    public class DeleteHardEventArgs : ItemEventArgs
    {
        public int    ForumOldId    { get; }
        public int    ModeratorId   { get; }
        public string ForumOldName  { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string Reason        { get; }

        internal DeleteHardEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ForumOldId    = a.GetQuery (2, "f");
            ModeratorId   = a.GetQuery (0, "f");
            ForumOldName  = a.GetText  (2);
            ModeratorName = a.GetText  (0);
            ThreadName    = b.GetText  (0);
            Reason        = b.GetText  (1);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} removed the thread {ThreadName} in {ForumOldName} with the reason {Reason}.";
        }
    }

    public class DeleteSoftEventArgs : ItemEventArgs
    {
        public int    ForumId       { get; }
        public int    ModeratorId   { get; }
        public int    ThreadId      { get; }
        public string ForumName     { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string Reason        { get; }

        internal DeleteSoftEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ForumId       = a.GetQuery (3, "f");
            ModeratorId   = a.GetQuery (0, "u");
            ThreadId      = a.GetQuery (2, "t");
            ForumName     = a.GetText  (3);
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} deleted the thread {ThreadName} in {ForumName} with the reason {Reason}.";
        }
    }

    public class DropDeadThreadEventArgs : ItemEventArgs
    {
        public int    ForumOldId    { get; }
        public int    ModeratorId   { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ForumOldName  { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }
        public string Reason        { get; }

        internal DropDeadThreadEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ForumOldId    = a.GetQuery (5, "f");
            ModeratorId   = a.GetQuery (0, "u");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ForumOldName  = a.GetText  (5);
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} DDT'd {UserName}'s thread called {ThreadName} in {ForumOldName} with the reason {Reason}.";
        }
    }

    public class ItemEventArgs : EventArgs
    {
        public int Time { get; }

        internal ItemEventArgs (int time)
        {
            Time = time;
        }

        public override string ToString ()
        {
            return $"";
        }
    }

    public class JoinEventArgs : ItemEventArgs
    {
        public int    UserId   { get; }
        public string UserName { get; }

        internal JoinEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");

            UserId   = a.GetQuery (0, "u");
            UserName = a.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{UserName} has joined.";
        }
    }

    public class MoveEventArgs : ItemEventArgs
    {
        public int    ForumNewId    { get; }
        public int    ForumOldId    { get; }
        public int    ModeratorId   { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ForumNewName  { get; }
        public string ForumOldName  { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }

        internal MoveEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");

            ForumNewId    = a.GetQuery (6, "f");
            ForumOldId    = a.GetQuery (5, "f");
            ModeratorId   = a.GetQuery (0, "u");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ForumNewName  = a.GetText  (6);
            ForumOldName  = a.GetText  (5);
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} moved {UserName}'s thread called {ThreadName} from {ForumOldName} to {ForumNewName}.";
        }
    }

    public class OpenEventArgs : ItemEventArgs
    {
        public int    ForumId       { get; }
        public int    ModeratorId   { get; }
        public int    ThreadId      { get; }
        public int    UserId        { get; }
        public string ForumName     { get; }
        public string ModeratorName { get; }
        public string ThreadName    { get; }
        public string UserName      { get; }
        public string Reason        { get; }

        internal OpenEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ForumId       = a.GetQuery (5, "f");
            ModeratorId   = a.GetQuery (0, "u");
            ThreadId      = a.GetQuery (4, "t");
            UserId        = a.GetQuery (2, "u");
            ForumName     = a.GetText  (5);
            ModeratorName = a.GetText  (0);
            ThreadName    = a.GetText  (4);
            UserName      = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} opened {UserName}'s thread called {ThreadName} in {ForumName} with the reason {Reason}.";
        }
    }

    public class PostEventArgs : ItemEventArgs
    {
        public int    ForumId    { get; }
        public int    PostId     { get; }
        public int    ThreadId   { get; }
        public int    UserId     { get; }
        public string ForumName  { get; }
        public string ThreadName { get; }
        public string UserName   { get; }
        public bool   Mentioned  { get; }

        internal PostEventArgs (int time, HtmlNode html) : base (time)
        {
            var a   = html.Descendants ("a");
            var div = html.Descendants ("div");

            ForumId    = a.GetQuery  (0, "f");
            PostId     = a.GetQuery  (2, "p");
            ThreadId   = a.GetQuery  (2, "t");
            UserId     = a.GetQuery  (1, "u");
            ForumName  = a.GetText   (0);
            ThreadName = a.GetText   (2);
            UserName   = a.GetText   (1);
            Mentioned  = div.GetText (5) == "Mentioned";
        }

        public override string ToString ()
        {
            return $"";
        }
    }

    public class RatingEventArgs : ItemEventArgs
    {
        public int    PostId     { get; }
        public int    ThreadId   { get; }
        public int    UserId     { get; }
        public string ThreadName { get; }
        public string UserName   { get; }
          /*public Rating Rating     { get; }*/

        internal RatingEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");

            PostId     = a.GetQuery (1, "p");
            ThreadId   = a.GetQuery (1, "t");
            UserId     = a.GetQuery (0, "u");
            ThreadName = a.GetText  (1);
            UserName   = a.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{UserName} rated your post in {ThreadName}.";
        }
    }

    public class UnbanEventArgs : ItemEventArgs
    {
        public int    ModeratorId   { get; }
        public int    UserId        { get; }
        public string ModeratorName { get; }
        public string UserName      { get; }
        public string Reason        { get; }

        internal UnbanEventArgs (int time, HtmlNode html) : base (time)
        {
            var a = html.Descendants ("a");
            var b = html.Descendants ("b");

            ModeratorId   = a.GetQuery (0, "u");
            UserId        = a.GetQuery (2, "u");
            ModeratorName = a.GetText  (0);
            UserName      = a.GetText  (2);
            Reason        = b.GetText  (0);
        }

        public override string ToString ()
        {
            return $"{ModeratorName} unbanned {UserName} with the reason {Reason}.";
        }
    }

    public delegate void BanEventHandler            (object sender, BanEventArgs args);
    public delegate void BanPermanentEventHandler   (object sender, BanPermanentEventArgs args);
    public delegate void CloseEventHandler          (object sender, CloseEventArgs args);
    public delegate void CloseBigEventHandler       (object sender, CloseBigEventArgs args);
    public delegate void DeleteHardEventHandler     (object sender, DeleteHardEventArgs args);
    public delegate void DeleteSoftEventHandler     (object sender, DeleteSoftEventArgs args);
    public delegate void DropDeadThreadEventHandler (object sender, DropDeadThreadEventArgs args);
    public delegate void ItemEventHandler           (object sender, ItemEventArgs args);
    public delegate void JoinEventHandler           (object sender, JoinEventArgs args);
    public delegate void MoveEventHandler           (object sender, MoveEventArgs args);
    public delegate void OpenEventHandler           (object sender, OpenEventArgs args);
    public delegate void PostEventHandler           (object sender, PostEventArgs args);
    public delegate void RatingEventHandler         (object sender, RatingEventArgs args);
    public delegate void UnbanEventHandler          (object sender, UnbanEventArgs args);
}