using Cruiser.Drawings;
using Cruiser.MovementStrategy;

namespace Cruiser;

public partial class FormCruiser : Form
{
    private DrawingShip? _drawingShip;

    private AbstructStrategy? _strategy;

    public FormCruiser()
    {
        InitializeComponent();
        _strategy = null;
    }

    private void CreateObject(string type)
    {
        Random random = new();
        switch (type)
        {
            case nameof(DrawingShip):
                _drawingShip = new DrawingShip(random.Next(100, 300), random.Next(1000, 3000),
                    Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)));
                break;
            case nameof(DrawingCruiser):
                _drawingShip = new DrawingCruiser(random.Next(100, 300), random.Next(1000, 3000),
                    Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
                    Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
                    Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)));
                break;
            default:
                return;
        }
        _drawingShip.SetPictureSize(pictureBoxCruiser.Width, pictureBoxCruiser.Height);
        _drawingShip.SetPosition(random.Next(10, 100), random.Next(10, 100));
        _strategy = null;
        comboBoxStrategy.Enabled = true;
        Draw();
    }

    private void Draw()
    {
        if (_drawingShip == null)
        {
            return;
        }
        Bitmap bmp = new(pictureBoxCruiser.Width, pictureBoxCruiser.Height);
        Graphics gr = Graphics.FromImage(bmp);
        _drawingShip.DrawTransport(gr);
        pictureBoxCruiser.Image = bmp;
    }

    /// <summary>
    /// Обработка кнопки "Создать Крейсер"
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void ButtonCreateCruiser_Click(object sender, EventArgs e) => CreateObject(nameof(DrawingCruiser));

    /// <summary>
    /// Обработка кнопки "Создать Корабль"
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void ButtonCreateShip_Click(object sender, EventArgs e) => CreateObject(nameof(DrawingShip));

    private void ButtonMove_Click(object sender, EventArgs e)
    {
        if (_drawingShip == null)
        {
            return;
        }

        string name = ((Button)sender)?.Name ?? string.Empty;
        bool result = false;

        switch (name)
        {
            case "buttonUp":
                result = _drawingShip.MoveTransport(DirectionType.Up);
                break;
            case "buttonDown":
                result = _drawingShip.MoveTransport(DirectionType.Down);
                break;
            case "buttonLeft":
                result = _drawingShip.MoveTransport(DirectionType.Left);
                break;
            case "buttonRight":
                result = _drawingShip.MoveTransport(DirectionType.Right);
                break;
        }
        if (result)
        {
            Draw();
        }
    }

    private void buttonStrategyStep_Click(object sender, EventArgs e)
    {
        if (_drawingShip == null)
        {
            return;
        }
        if (comboBoxStrategy.Enabled)
        {
            _strategy = comboBoxStrategy.SelectedIndex switch
            {
                0 => new MoveToCenter(),
                1 => new MoveToBorder(),
                _ => null,
            };
            if (_strategy == null)
            {
                return;
            }
            _strategy.SetData(new MoveableShip(_drawingShip), pictureBoxCruiser.Width, pictureBoxCruiser.Height);
        }

        if (_strategy == null)
        {
            return;
        }

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

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