using AntiAircraftGun.Drawnings;
using AntiAircraftGun.MovementStrategy;

namespace AntiAircraftGun;

public partial class FormAntiAircraftGun : Form
{
    /// <summary>
    /// Поле объект для прорисовки объекта
    /// </summary>
    private DrawningArmoredCar? _drawningAircraftGun;
    /// <summary>
    /// Стратегия перемещения
    /// </summary>
    private AbstractStrategy? _strategy;
    /// <summary>
    /// Получение объекта
    /// </summary>
    public DrawningArmoredCar SetArmoredCar
    {
        set
        {
            _drawningAircraftGun = value;
            _drawningAircraftGun.SetPictureSize(pictureBoxAntiAircraftGun.Width, pictureBoxAntiAircraftGun.Height);
            comboBoxStrategy.Enabled = true;
            _strategy = null;
            Draw();
        }
    }
    /// <summary>
    /// конструктор формы
    /// </summary>
    public FormAntiAircraftGun()
    {
        InitializeComponent();
        _strategy = null;
    }
    /// <summary>
    /// Метод прорисовки транспорта
    /// </summary>
    private void Draw()
    {
        if (_drawningAircraftGun == null)
        {
            return;
        }
        Bitmap bmp = new(pictureBoxAntiAircraftGun.Width, pictureBoxAntiAircraftGun.Height);
        Graphics gr = Graphics.FromImage(bmp);
        _drawningAircraftGun.DrawTransport(gr);
        pictureBoxAntiAircraftGun.Image = bmp;
    }
    /// <summary>
    /// Перемещение объекта по форме 
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void ButtonMove_Click(object sender, EventArgs e)
    {
        if (_drawningAircraftGun == null)
        {
            return;
        }
        string name = ((Button)sender)?.Name ?? string.Empty;
        bool result = false;
        switch (name)
        {
            case "buttonUp":
                result = _drawningAircraftGun.MoveTransport(DirectionType.Up);
                break;
            case "buttonDown":
                result = _drawningAircraftGun.MoveTransport(DirectionType.Down);
                break;
            case "buttonRight":
                result = _drawningAircraftGun.MoveTransport(DirectionType.Right);
                break;
            case "buttonLeft":
                result = _drawningAircraftGun.MoveTransport(DirectionType.Left);
                break;
        }
        if (result)
        {
            Draw();
        }
    }
    /// <summary>
    /// Метод выбора стратегии
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void buttonStrategyStep_Click(object sender, EventArgs e)
    {
        if (_drawningAircraftGun == null)
        {
            return;
        }

        if (comboBoxStrategy.Enabled)
        {
            _strategy = comboBoxStrategy.SelectedIndex switch
            {
                0 => new MoveToCenter(),
                1 => new MoveToBorder(),
                _ => null,
            };
            if (_strategy == null)
            {
                return;
            }
            _strategy.SetData(new MoveableAircraftGun(_drawningAircraftGun), pictureBoxAntiAircraftGun.Width, pictureBoxAntiAircraftGun.Height);
        }

        if (_strategy == null)
        {
            return;
        }

        comboBoxStrategy.Enabled = false;
        _strategy.MakeStep();
        Draw();

        if (_strategy.GetStatus() == StrategyStatus.Finish)
        {
            comboBoxStrategy.Enabled = true;
            _strategy = null;
        }
    }
}