using Godot;
using ReEdit;
using System;

public partial class Titlebar : PanelContainer
{
    private bool _dragging = false;
    private Vector2I _dragOffset;
    private bool _isMaximized = false;

    private Button minimizeButton;
    private Button maximizeButton;
    private Button closeButton;

    public override void _Ready()
    {
        CustomMaximumSize = new Vector2(-1, -1);

        minimizeButton = GetNode<Button>("HBoxContainer/Actions/Minimize");
        maximizeButton = GetNode<Button>("HBoxContainer/Actions/Maximize");
        closeButton = GetNode<Button>("HBoxContainer/Actions/Close");

        minimizeButton.Text = char.ConvertFromUtf32(0xE921);
        maximizeButton.Text = char.ConvertFromUtf32(0xE922);
        closeButton.Text = char.ConvertFromUtf32(0xE8BB);

    }

    public override void _GuiInput(InputEvent @event)
    {
        if (@event is InputEventMouseButton mb && mb.ButtonIndex == MouseButton.Left && !_isMaximized)
        {
            _dragging = mb.Pressed;
            Vector2I screenMousePos = DisplayServer.MouseGetPosition();
            _dragOffset = screenMousePos - GetWindow().Position;
        }
    }

    public override void _Process(double delta)
    {
        if (_dragging && !_isMaximized)
        {
            Vector2I screenMousePos = DisplayServer.MouseGetPosition();
            GetWindow().Position = screenMousePos - _dragOffset;
        }
    }

    public void _OnMinimizePressed()
    {
        GetWindow().Mode = Window.ModeEnum.Minimized;
    }

    public void _OnMaximizePressed()
    {
        Window window = GetWindow();

        if (_isMaximized)
        {

            window.Mode = Window.ModeEnum.Windowed;
            window.Size = new Vector2I(1152, 648);

            Vector2I screenSize = DisplayServer.ScreenGetSize();
            window.Position = (screenSize - window.Size) / 2;
            maximizeButton.Text = char.ConvertFromUtf32(0xE922);

            _isMaximized = false;
        }
        else
        {
            window.Mode = Window.ModeEnum.Maximized;
            _isMaximized = true;
            maximizeButton.Text = char.ConvertFromUtf32(0xE923);

        }
    }

    public void _OnClosePressed()
    {
        GetWindow().GetTree().Quit();
    }

}