using ProjectCruiser.DrawningSamples;
using ProjectCruiser.Entities;
using ProjectCruiser.MoveStrategy;

namespace ProjectCruiser
{
    public partial class OceanForm1 : Form
    {
        // Поле-объект для прорисовки объекта
        private DrawningBase? _drawningCruiser;

        // Стратегия перемещения
        private AbstractStrategy? _strategy;

        // Получение объекта
        public DrawningBase SetShip
        {
            set
            {
                _drawningCruiser = value;
                _drawningCruiser.SetPictureSize(pictureBoxCr.Width, pictureBoxCr.Height);
                comboBoxStrategy.Enabled = true;
                _strategy = null;
                Draw();
            }
        }

        public OceanForm1()
        {
            InitializeComponent();
            _strategy = null;
        }

        // Метод прорисовки transport
        private void Draw()
        {
            if (_drawningCruiser == null)
            {
                return;
            }
            Bitmap bmp = new(pictureBoxCr.Width, pictureBoxCr.Height);
            Graphics gr = Graphics.FromImage(bmp);
            _drawningCruiser.DrawTransport(gr);
            pictureBoxCr.Image = bmp;
        }

        // Обработка нажатия кнопок "Create(...)"

        private void btnCreateBase_Click(object sender, EventArgs e) =>
            CreateObject(nameof(DrawningBase));

        private void btnCreateAdvanced_Click(object sender, EventArgs e) =>
            CreateObject(nameof(DrawningCruiser));

        // Создание объекта класса-перемещения
        /// <param name="type">Тип создаваемого объекта</param>
        private void CreateObject(string type)
        {
            Random random = new();
            switch (type)
            {
                case nameof(DrawningBase):
                    EntityBase ship = new EntityBase(random.Next(100, 300), random.Next(1000, 3000),
                    Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)));
                    _drawningCruiser = new DrawningBase(ship);
                    break;

                case nameof(DrawningCruiser):
                    EntityCruiser cruiser = new EntityCruiser(
                        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)));
                    _drawningCruiser = new DrawningCruiser(cruiser);
                    break;

                default:
                    return;
            }

            _drawningCruiser.SetPictureSize(pictureBoxCr.Width, pictureBoxCr.Height);
            _drawningCruiser.SetPosition(random.Next(10, 100),
                pictureBoxCr.Height - random.Next(10, 100) - _drawningCruiser.getHeight());

            _strategy = null;
            comboBoxStrategy.Enabled = true;
            Draw();
        }

        private void BtnMove_Click(object sender, EventArgs e)
        {
            if (_drawningCruiser == null)
            {
                return;
            }
            string name = ((Button)sender)?.Name ?? string.Empty;
            bool result = false;
            switch (name)
            {
                case "btnUpArrow":
                    result =
                    _drawningCruiser.MoveTransport(DirectionType.Up);
                    break;
                case "btnDownArrow":
                    result =
                    _drawningCruiser.MoveTransport(DirectionType.Down);
                    break;
                case "btnLeftArrow":
                    result =
                    _drawningCruiser.MoveTransport(DirectionType.Left);
                    break;
                case "btnRightArrow":
                    result =
                    _drawningCruiser.MoveTransport(DirectionType.Right);
                    break;
            }
            if (result)
            {
                Draw();
            }
        }

        private void ButtonStrategyStep_Click(object sender, EventArgs e)
        {
            if (_drawningCruiser == null)
            {
                return;
            }
            if (comboBoxStrategy.Enabled)
            {
                _strategy = comboBoxStrategy.SelectedIndex switch
                {
                    0 => new MoveToCentre(),
                    1 => new MoveToBorder(),
                    _ => null,
                };
                if (_strategy == null)
                {
                    return;
                }
                _strategy.SetData(new MoveableTransport(_drawningCruiser),
                pictureBoxCr.Width, pictureBoxCr.Height);
            }
            if (_strategy == null)
            {
                return;
            }
            comboBoxStrategy.Enabled = false;
            _strategy.MakeStep();
            Draw();

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