using System;
using Cruiser.Drawing;
using Cruiser.Entities;
using Cruiser.MovementStrategy;

namespace Cruiser
{
    public partial class FormCruiser : Form
    {
        Bitmap bmp;
        /// <summary>
        /// Поле-объект для прорисовки объекта
        /// </summary>
        private DrawingCruiser? _drawningCruiser;
        /// <summary>
        /// Стратегия перемещения
        /// </summary>
        private AbstractStrategy? _abstractStrategy;
        /// <summary>
        /// Инициализация формы
        /// </summary>
        public FormCruiser()
        {
            InitializeComponent();
            bmp = new(pictureBoxCruiser.Width, pictureBoxCruiser.Width);
        }


        /// <summary>
        /// Метод прорисовки крейсера
        /// </summary>
        private void Draw()
        {
            if (_drawningCruiser == null)
            {
                return;
            }

            Graphics gr = Graphics.FromImage(bmp);
            gr.Clear(Color.White);
            _drawningCruiser.DrawTransport(gr);
            pictureBoxCruiser.Image = bmp;

        }

        /// <summary>
        /// Изменение положения автомобиля
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonMove_Click(object sender, EventArgs e)
        {
            if (_drawningCruiser == null)
            {
                return;
            }
            string name = ((Button)sender)?.Name ?? string.Empty;
            switch (name)
            {
                case "buttonUp":
                    _drawningCruiser.MoveTransport(Direction.Up);
                    break;
                case "buttonDown":
                    _drawningCruiser.MoveTransport(Direction.Down);
                    break;
                case "buttonLeft":
                    _drawningCruiser.MoveTransport(Direction.Left);
                    break;
                case "buttonRight":
                    _drawningCruiser.MoveTransport(Direction.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 (_drawningCruiser == null)
            {
                return;
            }
            if (comboBoxStrategy.Enabled)
            {
                _abstractStrategy = comboBoxStrategy.SelectedIndex
                switch
                {
                    0 => new MoveToCenter(),
                    1 => new MoveToBorder(),
                    _ => null,
                };
                if (_abstractStrategy == null)
                {
                    return;
                }
                _abstractStrategy.SetData(new
                DrawningObjectCar(_drawningCruiser), pictureBoxCruiser.Width,
                pictureBoxCruiser.Height);
                comboBoxStrategy.Enabled = false;
            }
            if (_abstractStrategy == null)
            {
                return;
            }
            _abstractStrategy.MakeStep();
            Draw();
            if (_abstractStrategy.GetStatus() == Status.Finish)
            {
                comboBoxStrategy.Enabled = true;
                _abstractStrategy = null;
            }
        }
        private void buttonCreateLiner_Click(object sender, EventArgs e)
        {
            Random random = new();
            _drawningCruiser = new DrawingCruiser(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)),
                pictureBoxCruiser.Width,
                pictureBoxCruiser.Height);
            _drawningCruiser.SetPosition(random.Next(10, 100), random.Next(10, 100));
            Draw();
        }

        private void buttonCreateProLiner_Click(object sender, EventArgs e)
        {
            Random random = new();
            _drawningCruiser = new DrawingProCruiser(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)),
                Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
                Convert.ToBoolean(random.Next(1, 2)),
                Convert.ToBoolean(random.Next(1, 2)),
                pictureBoxCruiser.Width,
                pictureBoxCruiser.Height);
            _drawningCruiser.SetPosition(random.Next(10, 100), random.Next(10, 100));
            Draw();
        }
    }
}