using ContainerShip.DrawningObjects;
using ContainerShip.MovementStrategy;

namespace ContainerShip
{
    public partial class FormShips : Form
    {
        private DrawningShip? _drawningShip;

        /// <summary>
        /// Стратегия перемещения
        /// </summary>
        private AbstractStrategy? _abstractStrategy;

        /// </summary>
        /// Выбранный корабль
        /// </summary>
        public DrawningShip? SelectedShip { get; private set; }

        public FormShips()
        {
            InitializeComponent();
            _abstractStrategy = null;
            SelectedShip = null;
        }
        private void Draw()
        {
            if (_drawningShip == null)
            {
                return;
            }
            Bitmap bmp = new(pictureBoxShips.Width,
            pictureBoxShips.Height);
            Graphics gr = Graphics.FromImage(bmp);
            _drawningShip.DrawTransport(gr);
            pictureBoxShips.Image = bmp;
        }

        /// <summary>
        /// Обработка нажатия кнопки "Создать контейнеровоз"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonCreateContainerShip_Click(object sender, EventArgs e)
        {
            Random random = new Random();
            Color color = Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256));
            //TODO выбор основного цвета
            ColorDialog dialog = new();
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                color = dialog.Color;
            }

            Color dopColor = Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256));
            //TODO выбор дополнительного цвета
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                dopColor = dialog.Color;
            }

            _drawningShip = new DrawingContainerShip(random.Next(200, 400), random.Next(1000, 3000),
                color, dopColor, Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)),
                pictureBoxShips.Width, pictureBoxShips.Height);

            _drawningShip.SetPosition(random.Next(10, 200), random.Next(10, 200));
            Draw();
        }

        /// <summary>
        /// Обработка нажатия кнопки "Создать корабль"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonCreateShip_Click(object sender, EventArgs e)
        {
            Random random = new();
            Color color = Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256));
            //TODO выбор основного цвета
            ColorDialog dialog = new();
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                color = dialog.Color;
            }
            _drawningShip = new DrawningShip(random.Next(100, 300),
            random.Next(1000, 3000), color,
            pictureBoxShips.Width, pictureBoxShips.Height);
            _drawningShip.SetPosition(random.Next(10, 100), random.Next(10, 100));
            Draw();
        }

        private void buttonMove_Click(object sender, EventArgs e)
        {
            if (_drawningShip == null)
            {
                return;
            }
            string name = ((Button)sender)?.Name ?? string.Empty;
            switch (name)
            {
                case "buttonUp":
                    _drawningShip.MoveTransport(DirectionType.Up);
                    break;
                case "buttonDown":
                    _drawningShip.MoveTransport(DirectionType.Down);
                    break;
                case "buttonLeft":
                    _drawningShip.MoveTransport(DirectionType.Left);
                    break;
                case "buttonRight":
                    _drawningShip.MoveTransport(DirectionType.Right);
                    break;
            }
            Draw();
        }

        /// <summary>
        /// Обработка нажатия кнопки "Шаг"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonStep_Click(object sender, EventArgs e)
        {
            if (_drawningShip == null)
            {
                return;
            }
            if (comboBoxStrategy.Enabled)
            {
                _abstractStrategy = comboBoxStrategy.SelectedIndex
                switch
                {
                    0 => new MoveToCenter(),
                    1 => new MoveToBorder(),
                    _ => null,
                };
                if (_abstractStrategy == null)
                {
                    return;
                }
                _abstractStrategy.SetData(new
                DrawingObjectShip(_drawningShip), pictureBoxShips.Width,
                pictureBoxShips.Height);
                comboBoxStrategy.Enabled = false;
            }
            if (_abstractStrategy == null)
            {
                return;
            }
            _abstractStrategy.MakeStep();
            Draw();
            if (_abstractStrategy.GetStatus() == Status.Finish)
            {
                comboBoxStrategy.Enabled = true;
                _abstractStrategy = null;
            }
        }

        private void buttonSelectedContainerShip_Click(object sender, EventArgs e)
        {
            SelectedShip = _drawningShip;
            DialogResult = DialogResult.OK;
        }

    }

}