using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RoadTrain
{
    public class DrawningRoadTrain
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityRoadTrain? EntityRoadTrain { get; private set; }
        /// <summary>
        /// Ширина окна
        /// </summary>
        private int _pictureWidth;
        /// <summary>
        /// Высота окна
        /// </summary>
        private int _pictureHeight;
        /// <summary>
        /// Левая координата прорисовки автомобиля
        /// </summary>
        private int _startPosX;
        /// <summary>
        /// Верхняя кооридната прорисовки автомобиля
        /// </summary>
        private int _startPosY;
        /// <summary>
        /// Ширина прорисовки автомобиля
        /// </summary>
        private readonly int _trainWidth = 70;
        /// <summary>
        /// Высота прорисовки автомобиля
        /// </summary>
        private readonly int _trainHeight = 30;
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес</param>
        /// <param name="bodyColor">Цвет кузова</param>
        /// <param name="additionalColor">Дополнительный цвет</param>
        /// <param name="WaterContainer">Признак наличия контейнера для воды</param>
        /// <param name="SweepingBrush">Признак наличия щетки</param>
        /// <param name="width">Ширина картинки</param>
        /// <param name="height">Высота картинки</param>
        /// <returns>true - объект создан, false - проверка не пройдена, нельзя создать объект в этих размерах</returns>
        public bool Init(EntityRoadTrain entityRoadTrain, int width, int height)
        {
            if (width < _trainWidth) { return false; }
            if (height < _trainHeight) { return false; }
            _pictureWidth = width;
            _pictureHeight = height;
            EntityRoadTrain = entityRoadTrain;
            
            return true;
        }
        /// <summary>
        /// Установка позиции
        /// </summary>
        /// <param name="x">Координата X</param>
        /// <param name="y">Координата Y</param>
        public void SetPosition(int x, int y)
        {
            if (x < 0) { x = 0; }
            if (y < 0) { y = 0; }
            if (x > 200) { x = 200; }
            if (y > 200) { y = 200; }
            _startPosX = x;
            _startPosY = y;
        }
        /// <summary>
        /// Изменение направления перемещения
        /// </summary>
        /// <param name="direction">Направление</param>
        public void MoveTransport(DirectionType direction)
        {
            if (EntityRoadTrain == null)
            {
                return;
            }
            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX - EntityRoadTrain.Step > 0)
                    {
                        _startPosX -= (int)EntityRoadTrain.Step;
                    }
                    break;
                //вверх
                case DirectionType.Up:
                    if (_startPosY - EntityRoadTrain.Step > 0)
                    {
                        _startPosY -= (int)EntityRoadTrain.Step;
                    }
                    break;
                // вправо
                case DirectionType.Right:
                    if (_startPosX + EntityRoadTrain.Step + _trainWidth < _pictureWidth)
                    {
                        _startPosX += (int)EntityRoadTrain.Step;
                    }
                    break;
                //вниз
                case DirectionType.Down:
                    if (_startPosY + EntityRoadTrain.Step + _trainHeight < _pictureHeight)
                    {
                        _startPosY += (int)EntityRoadTrain.Step;
                    }
                    break;
            }
        }
        /// <summary>
        /// Прорисовка объекта
        /// </summary>
        /// <param name="g"></param>
        public void DrawTransport(Graphics g)
        {
            if (EntityRoadTrain == null)
            {
                return;
            }
            Pen pen = new(Color.Black);
            Brush additionalBrush = new SolidBrush(EntityRoadTrain.AdditionalColor);
            //Контейнер с водой
            if (EntityRoadTrain.WaterContainer)
            {
                g.DrawEllipse(pen, _startPosX + 30, _startPosY, 10, 20);
                g.FillEllipse(additionalBrush, _startPosX + 30, _startPosY, 10, 20);

            }
            if (EntityRoadTrain.SweepingBrush)
            {
                g.DrawLine(pen, _startPosX + 30, _startPosY + 10, _startPosX + 20, _startPosY + 10);
                g.DrawLine(pen, _startPosX + 20, _startPosY + 10, _startPosX + 10, _startPosY + 30);
                g.DrawLine(pen, _startPosX + 17, _startPosY + 30, _startPosX + 3, _startPosY + 30);
            }
            Brush br = new SolidBrush(EntityRoadTrain.BodyColor);
            g.DrawLine(pen, _startPosX + 20, _startPosY + 20, _startPosX + 70, _startPosY + 20);
            g.DrawEllipse(pen, _startPosX + 20, _startPosY + 20, 10, 10);
            g.DrawEllipse(pen, _startPosX + 30, _startPosY + 20, 10, 10);
            g.DrawEllipse(pen, _startPosX + 60, _startPosY + 20, 10, 10);
            g.DrawRectangle(pen, _startPosX + 60, _startPosY, 10, 20);

            g.FillEllipse(br, _startPosX + 20, _startPosY + 20, 10, 10);
            g.FillEllipse(br, _startPosX + 30, _startPosY + 20, 10, 10);
            g.FillEllipse(br, _startPosX + 60, _startPosY + 20, 10, 10);
            g.FillRectangle(br, _startPosX + 60, _startPosY, 10, 20);
        }
    }
}