using DumpTruck.DrawingObjects;
using DumpTruck.MovementStrategy;

namespace DumpTruck
{
	public partial class FormDumpTruck : Form
	{
		public FormDumpTruck()
		{
			InitializeComponent();
		}

        private DrawingTruck? _drawingTruck;

        private AbstractStrategy? _abstractStrategy;

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

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

        private void ButtonCreateDumpTruck_Click(object sender, EventArgs e)
        {
            Random random = new();
            _drawingTruck = new DrawingDumpTruck(random.Next(100, 300), random.Next(1000, 3000), 
                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)), 
                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)),
                pictureBoxDumpTruck.Width, pictureBoxDumpTruck.Height);
            _drawingTruck.SetPosition(random.Next(10, 100), random.Next(10, 100));
            Draw();
        }

        private void ButtonCreateTruck_Click(object sender, EventArgs e)
        {
            Random random = new();
            _drawingTruck = new DrawingTruck(random.Next(100, 300), random.Next(1000, 3000), Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
                pictureBoxDumpTruck.Width, pictureBoxDumpTruck.Height);
            _drawingTruck.SetPosition(random.Next(10, 100), random.Next(10, 100));
            Draw();
        }

        private void ButtonStep_Click(object sender, EventArgs e)
        {
            if (_drawingTruck == null)
            {
                return;
            }
            if (comboBoxStrategy.Enabled)
            {
                _abstractStrategy = comboBoxStrategy.SelectedIndex
                switch
                {
                    0 => new MoveToCenter(),
                    1 => new MoveToBorder(),
                    _ => null,
                };
                if (_abstractStrategy == null)
                {
                    return;
                }
                _abstractStrategy.SetData(new
                DrawningObjectTruck(_drawingTruck), pictureBoxDumpTruck.Width,
                pictureBoxDumpTruck.Height);
                comboBoxStrategy.Enabled = false;
            }
            if (_abstractStrategy == null)
            {
                return;
            }
            _abstractStrategy.MakeStep();
            Draw();
            if (_abstractStrategy.GetStatus() == Status.Finish)
            {
                comboBoxStrategy.Enabled = true;
                _abstractStrategy = null;
            }
        }
    }
}