using ProjectAirplaneWithRadar.Drawnings;
using ProjectAirplaneWithRadar.MovementStrategy;

namespace ProjectAirplaneWithRadar
{
    /// <summary>
    /// Форма работы с объектом "Самолет с радаром"
    /// </summary>
    public partial class FormAirplaneWithRadar : Form
    {
        /// <summary>
        /// Поле-объект для происовки объект
        /// </summary>
        private DrawningAirplane? _drawingAirplane;

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

        public DrawningAirplane SetAirplane
        {
            set
            {
                _drawingAirplane = value;
                _drawingAirplane.SetPictureSize(pictureBoxAirplaneWithRadar.Width, pictureBoxAirplaneWithRadar.Height);
                comboBoxStrategy.Enabled = true;
                _strategy = null;
                UpdatePlane();
            }
        }

        /// <summary>
        /// Конструктор формы
        /// </summary>
        public FormAirplaneWithRadar()
        {
            InitializeComponent();
            _strategy = null;
        }

        /// <summary>
        /// Метод прорисовки самолета
        /// </summary>
        private void UpdatePlane()
        {
            if (_drawingAirplane == null)
            {
                return;
            }
            Bitmap bmp = new(pictureBoxAirplaneWithRadar.Width, pictureBoxAirplaneWithRadar.Height);
            Graphics gr = Graphics.FromImage(bmp);
            _drawingAirplane?.DrawTransport(gr);
            pictureBoxAirplaneWithRadar.Image = bmp;
        }

        /// <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 (_drawingAirplane == null)
            {
                return;
            }

            if (sender is Button button)
            {
                string name = button.Name;
                DirectionType result;
                switch (name)
                {
                    case "buttonUp":
                        result = DirectionType.Up;
                        break;
                    case "buttonDown":
                        result = DirectionType.Down;
                        break;
                    case "buttonLeft":
                        result = DirectionType.Left;
                        break;
                    case "buttonRight":
                        result = DirectionType.Right;
                        break;

                    default:
                        return;

                }
                _drawingAirplane.MoveTransport(result);

                UpdatePlane();
            }
        }

        /// <summary>
        /// Обработка нажатия кнопки "Шаг"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonStrategyStep_Click(object sender, EventArgs e)
        {
            if (_drawingAirplane == null)
            {
                return;
            }

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

            if (_strategy == null)
            {
                return;
            }

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

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