Luski/Luski/GUI/MainScreen/UI/Chat.cs

using GraphicsManager.Enums;
using GraphicsManager.Interfaces;
using GraphicsManager.Objects;
using Luski.GUI.MainScreen.Interfaces;
using Luski.net;
using Luski.net.Enums;
using Luski.net.JsonTypes;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
using OpenTK.Windowing.GraphicsLibraryFramework;

namespace Luski.GUI.MainScreen.UI;

public class Chat : UserControl
{
    public FlowLayout MessageFlow;
    private UserControl titlecon, typecon;
    private Label title, desc;
    private Textbox tb;
    private SocketTextChannel? Channel = null;
    public Chat(MainScreen screen)
    {
        screen.MainShow += ScreenOnMainShow;
        Size = new((int)(754 * Globals.Settings.Scale), (int)(667 * Globals.Settings.Scale));
        BackgroundColor = new(50, 50, 50, 255);
        Anchor = ObjectAnchor.All;
        Controls.Add(MessageFlow = new()
        {
            Size = new((int)(754 * Globals.Settings.Scale), (int)(586 * Globals.Settings.Scale)),
            Location = new(0, (int)(40 * Globals.Settings.Scale)),
            BackgroundColor = new(40,40,40,255),
            Anchor = ObjectAnchor.All,
            HScrollPixels = Globals.Settings.PerScrollPixels
        });
        Controls.Add(titlecon = new UserControl(){Anchor = ObjectAnchor.Left | ObjectAnchor.Top | ObjectAnchor.Right, Size = new((int)(754 * Globals.Settings.Scale), (int)(40 * Globals.Settings.Scale)), BackgroundColor = BackgroundColor});
        Controls.Add(typecon = new UserControl(){Anchor = ObjectAnchor.Left | ObjectAnchor.Bottom | ObjectAnchor.Right, Location = new(0, (int)(626 * Globals.Settings.Scale)), Size = new((int)(754 * Globals.Settings.Scale), (int)(41 * Globals.Settings.Scale)), BackgroundColor = BackgroundColor});
        titlecon.Controls.Add(title = new Label()
        {
            Font = Globals.DefaultFont, Location = new(
                (int)((20 - (Globals.DefaultFont.PixelHeight / 2)) * Globals.Settings.Scale),
                (int)((20 * Globals.Settings.Scale) - (Globals.DefaultFont.PixelHeight / 2)))
        });
        titlecon.Controls.Add(desc = new Label(){ Font = Globals.DefaultFont, Color = new(161,161,161,255), Location = new(title.Location.X + title.Size.X + 5, title.Location.Y)});
        typecon.Controls.Add(tb = new Textbox()
        {
            Font = Globals.DefaultFont, 
            InsideColor = new(28, 28, 28, 255),
            BorderColor = Color4.DarkCyan,
            Location = new((int)(7.5 * Globals.Settings.Scale)),
            Size = new((int)(739 * Globals.Settings.Scale), (int)(26 * Globals.Settings.Scale)),
            Anchor = ObjectAnchor.All
        });
        tb.KeyPress += TbOnKeyPress;
    }

    private Task ScreenOnMainShow()
    {
        Globals.Luski.MessageReceived += LuskiOnMessageReceived;
        return Task.CompletedTask;
    }

    private Task TbOnKeyPress(KeyboardKeyEventArgs arg)
    {
        if (arg.Key != Keys.Enter && arg.Key != Keys.KeyPadEnter) return Task.CompletedTask;
        Thread t = new(() => Thr());
        t.Start();
        return Task.CompletedTask;
    }

    private void Thr()
    {
        Globals.Luski.SendMessage(tb.Text, Channel!.Id, CancellationToken.None);
        Window!.Invoke(new Action(() => { tb.Text = string.Empty; })); 
    }

    private Task LuskiOnMessageReceived(SocketMessage arg)
    {
        if (Channel!.Id != arg.ChannelID) return Task.CompletedTask;
        IRenderObject? reff = null;
        if (MessageFlow.Controls.Length > 0) reff = MessageFlow.Controls[MessageFlow.Controls.Length - 1];
        AddMessage(arg);
        if (reff is null || (reff.Location.Y + reff.Size.Y <= MessageFlow.Size.Y && reff.Location.X >= 0)) Window.Invoke(new Action(() => { MessageFlow.ScrollToBottom();})); 
        
        return Task.CompletedTask;
    }

    public void Clear()
    {
        MessageFlow.Controls.Clear();
        lastm = null;
        lastUser = null;
    }

    public void UpdateTitle(IChannelPick channelPick)
    {
        if (Channel is not null && Channel!.Id == channelPick.Channel.Id) return;
        Channel = channelPick.Channel;
        title.Text = channelPick.Channel.Title;
        tb.WatermarkFont = Globals.DefaultFont;
        if (channelPick.Channel.Type == ChannelType.DM)
            title.Text = (channelPick.Channel as SocketDMChannel)!.User.Username;
        tb.WatermarkText = "Message " + title.Text;
        if (channelPick.Channel.Description is not null)
        {
            desc.Visible = true;
            desc.Text = channelPick.Channel.Description;
            desc.Location = new(title.Location.X + title.Size.X + 5, title.Location.Y);
        }
        else
        {
            desc.Visible = false;
        }
    }

    private SocketMessage? lastm = null;
    private long? lastUser = null;
    private ChatMessage? LastChatMessage = null;

    public void AddMessage(SocketMessage Message)
    {
        bool hasbeentenmin = false;
        if (lastm is not null)
            hasbeentenmin =
                new DateTime(2022, 1, 1, 0, 0, 0, 0).AddMilliseconds(lastm.Id >> 22).ToLocalTime().AddMinutes(10) <
                new DateTime(2022, 1, 1, 0, 0, 0, 0).AddMilliseconds(Message.Id >> 22).ToLocalTime();
        lastm = Message;
        if (lastUser is null || lastUser != Message.AuthorID || hasbeentenmin)
        {
            if (Window is null || !Window.InvokeRequired)
                MessageFlow.Controls.Add(LastChatMessage = new ChatMessage(Message));
            else
                Window!.Invoke(new Action(() => { MessageFlow.Controls.Add(LastChatMessage = new ChatMessage(Message)); Window.DrawFrame(); }));
        }
        else
        {
            if (Window is null || !Window.InvokeRequired)
                LastChatMessage!.AddMessage(Message);
            else
                Window!.Invoke(new Action(() => { LastChatMessage!.AddMessage(Message); Window!.DrawFrame(); }));
        }

        lastUser = Message.AuthorID;
    }
}