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

namespace Hydroplane
{
    public class DrawningHydroplane
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityHydroplane? EntityHydroplane { get; private set; }
        /// <summary>
        /// Ширина окна
        /// </summary>
        private int _pictureWidth;
        /// <summary>
        /// Высота окна
        /// </summary>
        private int _pictureHeight;
        /// <summary>
        /// Левая координата прорисовки гидроплана
        /// </summary>
        private int _startPosX;
        /// <summary>
        /// Верхняя кооридната прорисовки гидроплана
        /// </summary>
        private int _startPosY;
        /// <summary>
        /// Ширина прорисовки гидроплана
        /// </summary>
        private readonly int _planeWidth = 175;
        /// <summary>
        /// Высота прорисовки гидроплана
        /// </summary>
        private readonly int _planeHeight = 80;
        /// <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="boat">Признак наличия надувной лодки</param>
        /// <param name="bobber">Признак наличия поплавков</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(int speed, double weight, Color bodyColor, Color
        additionalColor, bool boat, bool bobber, int width, int height)
        {
            _pictureWidth = width;
            _pictureHeight = height;
            if (_pictureWidth < _planeWidth || _pictureHeight < _planeHeight)
            {
                return false;
            }
            EntityHydroplane = new EntityHydroplane();
            EntityHydroplane.Init(speed, weight, bodyColor, additionalColor,
            boat, bobber);
            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)
        {
            _startPosX = Math.Min(x, _pictureWidth - _planeWidth);
            _startPosY = Math.Min(y, _pictureHeight - _planeHeight);
        }

        /// <summary>
        /// Изменение направления перемещения
        /// </summary>
        /// <param name="direction">Направление</param>
        public void MoveTransport(DirectionType direction)
        {
            if (EntityHydroplane == null)
            {
                return;
            }
            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX - EntityHydroplane.Step > 0)
                    {
                        _startPosX -= (int)EntityHydroplane.Step;
                    }
                    break;
                //вверх
                case DirectionType.Up:
                    if (_startPosY - EntityHydroplane.Step > 0)
                    {
                        _startPosY -= (int)EntityHydroplane.Step;
                    }
                    break;
                // вправо
                case DirectionType.Right:
                    if (_startPosX + EntityHydroplane.Step + _planeWidth < _pictureWidth)
                    {
                        _startPosX += (int)EntityHydroplane.Step;
                    }
                    break;
                //вниз
                case DirectionType.Down:
                    if (_startPosY + EntityHydroplane.Step + _planeHeight < _pictureHeight)
                    {
                        _startPosY += (int)EntityHydroplane.Step;
                    }
                    break;
            }
        }

        /// <summary>
        /// Прорисовка объекта
        /// </summary>
        /// <param name="g"></param>
        public void DrawTransport(Graphics g)
        {
            if (EntityHydroplane == null)
            {
                return;
            }
            Pen pen = new(Color.Black);
            Brush additionalBrush = new SolidBrush(EntityHydroplane.AdditionalColor);
            Brush bodyBrush = new SolidBrush(EntityHydroplane.BodyColor);
            
            //раскраска основы
            g.FillPolygon(bodyBrush, new[] { 
                new Point(_startPosX + 5, _startPosY), 
                new Point(_startPosX + 5, _startPosY + 55), 
                new Point(_startPosX + 130, _startPosY + 55), 
                new Point(_startPosX + 160, _startPosY + 40), 
                new Point(_startPosX + 130, _startPosY + 40), 
                new Point(_startPosX + 130, _startPosY + 25), 
                new Point(_startPosX + 55, _startPosY + 25) });

            //раскраска ножек
            g.FillRectangle(bodyBrush, _startPosX + 65, _startPosY + 55, 5, 15);
            g.FillRectangle(bodyBrush, _startPosX + 125, _startPosY + 55, 5, 15);

            //раскраска иллюминаторов
            g.FillEllipse(additionalBrush, _startPosX + 40, _startPosY + 30, 10, 10);
            g.FillEllipse(additionalBrush, _startPosX + 60, _startPosY + 30, 10, 10);
            g.FillEllipse(additionalBrush, _startPosX + 80, _startPosY + 30, 10, 10);

            //раскраска окна
            g.FillPolygon(additionalBrush, new[]
            {
                new Point(_startPosX + 160, _startPosY + 40),
                new Point(_startPosX + 130, _startPosY + 40),
                new Point(_startPosX + 130, _startPosY + 25) });

            //основа
            g.DrawRectangle(pen, _startPosX + 5, _startPosY + 25, 125, 30);

            //хвост
            g.DrawLine(pen, _startPosX + 5, _startPosY + 25, _startPosX + 5, _startPosY);
            g.DrawLine(pen, _startPosX + 55, _startPosY + 25, _startPosX + 5, _startPosY);

            //нос
            g.DrawLine(pen, _startPosX + 130, _startPosY + 25, _startPosX + 160, _startPosY + 40);
            g.DrawLine(pen, _startPosX + 130, _startPosY + 55, _startPosX + 160, _startPosY + 40);
            g.DrawLine(pen, _startPosX + 130, _startPosY + 40, _startPosX + 160, _startPosY + 40);

            //иллюминаторы
            g.DrawEllipse(pen, _startPosX + 40, _startPosY + 30, 10, 10);
            g.DrawEllipse(pen, _startPosX + 60, _startPosY + 30, 10, 10);
            g.DrawEllipse(pen, _startPosX + 80, _startPosY + 30, 10, 10);

            //крыло сбоку
            g.DrawEllipse(pen, _startPosX + 35, _startPosY + 43, 80, 7);

            //ножки снизу
            g.DrawLine(pen, _startPosX + 65, _startPosY + 55, _startPosX + 65, _startPosY + 70);
            g.DrawLine(pen, _startPosX + 70, _startPosY + 55, _startPosX + 70, _startPosY + 70);
            g.DrawLine(pen, _startPosX + 125, _startPosY + 55, _startPosX + 125, _startPosY + 70);
            g.DrawLine(pen, _startPosX + 130, _startPosY + 55, _startPosX + 130, _startPosY + 70);

            //поплавки(лыжи) или колеса
            if (EntityHydroplane.Bobber)
            {
                g.FillPolygon(additionalBrush, new[]
                {
                    new Point(_startPosX + 55, _startPosY + 70),
                    new Point(_startPosX + 55, _startPosY + 80),
                    new Point(_startPosX + 155, _startPosY + 80),
                    new Point(_startPosX + 175, _startPosY + 70) });

                g.DrawPolygon(pen, new[]
                {
                    new Point(_startPosX + 55, _startPosY + 70),
                    new Point(_startPosX + 55, _startPosY + 80),
                    new Point(_startPosX + 155, _startPosY + 80),
                    new Point(_startPosX + 175, _startPosY + 70) });
            }
            else
            {
                g.FillEllipse(additionalBrush, _startPosX + 60, _startPosY + 70, 15, 15);
                g.FillEllipse(additionalBrush, _startPosX + 120, _startPosY + 70, 15, 15);

                g.DrawEllipse(pen, _startPosX + 60, _startPosY + 70, 15, 15);
                g.DrawEllipse(pen, _startPosX + 120, _startPosY + 70, 15, 15);
            }

            //надувная лодка
            if (EntityHydroplane.Boat)
            {
                g.FillEllipse(additionalBrush, _startPosX, _startPosY + 21, 32, 8);
                g.DrawEllipse(pen, _startPosX, _startPosY + 21, 32, 8);
            }
        }
    }
}