using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MrTell.Plugins
{
    class MemoPlugin : Plugin
    {
        List<MemoUser> memoUsers = new List<MemoUser>();

        public MemoPlugin()
        {
            Name = "User Memos";
            Cmd = "!memo";
            Help = "Usage: !memo <user> <message>";
            AllowEvents = true;
        }

        public override void PluginStart()
        {
            base.PluginStart();
        }

        public override void PluginMessageReceived(IRCMessage ircMessage)
        {
            if (ircMessage.Parameters[0] == "!memo")
            {
                if (ircMessage.Parameters.Length > 1)
                {
                    string memoMessage = "";
                    string targetNick = ircMessage.Parameters[1];

                    if( ircMessage.Parameters.Length > 2)
                        memoMessage = string.Join(" ", ircMessage.Parameters.Skip(2).ToArray());

                    MemoUser user = memoUsers.Find(memo => memo.Nick == targetNick);

                    //If user doesnt exist, Then create.
                    if (user == null)
                    {
                        Console.WriteLine("Created User");
                        user = new MemoUser();
                        user.Nick = targetNick;
                        memoUsers.Add(user);
                    }

                    //Now add the memo to the user
                    if( !string.IsNullOrEmpty(memoMessage) )
                        user.Messages.Add("Message From " + ircMessage.Nick + ": " + memoMessage);
                }
            }

            //User has joined
            if (ircMessage.Command == "JOIN")
            {
                //Find the user in Memos
                MemoUser user = memoUsers.Find(memo => memo.Nick == ircMessage.Nick);

                if (user != null)
                {
                    Console.WriteLine("Sending memo to user Count: {0}", user.Messages.Count);
                    foreach (string message in user.Messages)
                    {
                        IrcBot.SendMessage(message);
                    }

                    user.Messages.Clear();
                }
            }

            base.PluginMessageReceived(ircMessage);
        }
    }

    class MemoUser
    {
        public string Nick;
        public List<string> Messages = new List<string>();
    }
}