using ProjectTank.Drawnings;
using ProjectTank.Entities;
using ProjectTank.MovementStrategy;

namespace ProjectTank
{
    /// <summary>
    /// Форма работы с объектом "Танк"
    /// </summary>  
    public partial class FormTank : Form
    {
        /// <summary>
        /// Поле-объект для прорисовки объекта
        /// </summary>
        private DrawningTank2? _drawningTank;

        private EntityTank2? _entityTank2;
        private EntityTank1? _entityTank1;

        /// <summary>
        /// Стратегия перемещения
        /// </summary>
        private AbstractStrategy? _strategy;
        /// <summary>
        /// Конструктор формы
        /// </summary>
        public FormTank()
        {
            InitializeComponent();
            _strategy = null;
        }
        /// <summary>
        /// Метод прорисовки танка
        /// </summary>
        private void Draw()
        {
            if (_drawningTank == null)
            {
                return;
            }
            Bitmap bmp = new(pictureBoxTanks.Width, pictureBoxTanks.Height);
            Graphics gr = Graphics.FromImage(bmp);
            _drawningTank.DrawTransport(gr);
            pictureBoxTanks.Image = bmp;
        }
        /// <summary>
        /// Создание объекта класса-перемещения
        /// </summary>
        /// <param name="type">Тип создаваемого объекта</param>
        private void CreateObject(string type)
        {
            Random random = new Random();
            switch (type)
            {
                case nameof(DrawningTank2):
                    _drawningTank = new DrawningTank2(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(DrawningTank1):
                    _drawningTank = new DrawningTank1(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)));
                    break;
                default:
                    return;
            }
            _drawningTank.SetPictureSize(pictureBoxTanks.Width, pictureBoxTanks.Height);
            _drawningTank.SetPosition(random.Next(10, 100), random.Next(10, 100));
            _strategy = null;
            СomboBoxStrategy.Enabled = true;
            Draw();
        }

        /// <summary>
        /// Обработка нажатия кнопки "Создать"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>

        private void ButtonCreateTank1_Ckick(object sender, EventArgs e) => CreateObject(nameof(DrawningTank1));
        private void ButtonCreateTank2_Ckick(object sender, EventArgs e) => CreateObject(nameof(DrawningTank2));

        /// <summary>
        /// Перемещение объекта по форме (нажатие кнопок навигации)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonMove_Click(object sender, EventArgs e)
        {
            if (_drawningTank == null)
            {
                return;
            }
            string name = ((Button)sender)?.Name ?? string.Empty;
            bool result = false;
            switch (name)
            {
                case "buttonUp":
                    result = _drawningTank.MoveTransport(DirectionType.Up);
                    break;
                case "buttonLeft":
                    result = _drawningTank.MoveTransport(DirectionType.Left);
                    break;
                case "buttonRight":
                    result = _drawningTank.MoveTransport(DirectionType.Right);
                    break;
                case "buttonDown":
                    result = _drawningTank.MoveTransport(DirectionType.Down);
                    break;
            }
            if (result)
            {
                Draw();
            }
        }
        /// <summary>
        /// Обработка нажатия кнопки "Шаг"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonStrategyStep_Ckick(object sender, EventArgs e)
        {
            if (_drawningTank == null)
            {
                return;
            }
            if (СomboBoxStrategy.Enabled)
            {
                _strategy = СomboBoxStrategy.SelectedIndex switch
                {
                    0 => new MoveToCenter(),
                    1 => new MoveToBorder(),
                    _ => null,
                };
                if (_strategy == null)
                {
                    return;
                }
                _strategy.SetData(new MoveableTank(_drawningTank),
                pictureBoxTanks.Width, pictureBoxTanks.Height);
            }
            if (_strategy == null)
            {
                return;
            }
            СomboBoxStrategy.Enabled = false;
            _strategy.MakeStep();
            Draw();
            if (_strategy.GetStatus() == StrategyStatus.Finish)
            {
                СomboBoxStrategy.Enabled = true;
                _strategy = null;
            }
        }
    }
}