using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography.Pkcs;
using System.Text;
using System.Threading.Tasks;
using Lab.Entities;
using Lab.MovementStrategy;

namespace Lab.DrawningObjects
{
    public class DrawTanker
    {
        public BaseTanker? _gasolineTanker { get; protected set; }
        protected int _pictureWidth;
        protected int _pictureHeight;
        protected int _startPosX;
        protected int _startPosY;
        protected readonly int _carWidth = 100;
        protected readonly int _carHeight = 80;
        public int GetPosX => _startPosX;
        public int GetPosY => _startPosY;
        public int GetWidth => _carWidth;
        public int GetHeight => _carHeight;

        public bool CanMove(Direction direction)
        {
            if (_gasolineTanker == null)
                return false;
            return direction switch
            {
                Direction.Left => _startPosX - _gasolineTanker.Step > 0,
                Direction.Up => _startPosY - _gasolineTanker.Step > 0,
                Direction.Right => _startPosX + _carWidth + _gasolineTanker.Step < _pictureWidth,
                Direction.Down => _startPosY + _carHeight + _gasolineTanker.Step < _pictureHeight,
                _ => false

            };
        }
        // Конструктор класса
        public DrawTanker(int speed, double weight, Color bodyColor, int width, int height)
        {
            _pictureHeight = height;
            _pictureWidth = width;
            _gasolineTanker = new BaseTanker(speed, weight, bodyColor);
        }

        public DrawTanker(int speed, double weight, Color bodyColor, int width, int height, int carWidth, int carHeight)
        {
            _pictureHeight = height;
            _pictureWidth = width;
            _carHeight = carHeight;
            _carWidth = carWidth;
            _gasolineTanker = new BaseTanker(speed, weight, bodyColor);
        }

        public void SetBaseColor(Color bodyColor)
        {
            _gasolineTanker.ChangeBodyColor(bodyColor);
        }

        public void SetPosition(int x, int y)
        {
            _startPosX = x;
            _startPosY = y;
        }

        public void MoveTransport(Direction direction)
        {
            if (!CanMove(direction) || _gasolineTanker == null)
                return;
            switch (direction)
            {
                case Direction.Left:
                    {
                        if (_startPosX - _gasolineTanker.Step > 0)
                        {
                            _startPosX -= (int)_gasolineTanker.Step;
                        }
                    }
                    break;
                case Direction.Up:
                    {
                        if (_startPosY - _gasolineTanker.Step > 0)
                        {
                            _startPosY -= (int)_gasolineTanker.Step;
                        }
                    }
                    break;
                case Direction.Right: 
                    {
                        if (_startPosX + _carWidth + _gasolineTanker.Step < _pictureWidth)
                        {
                            _startPosX += (int)_gasolineTanker.Step;
                        }
                    }
                    break;
                case Direction.Down:
                    {
                        if (_startPosY + _gasolineTanker.Step + _carHeight < _pictureHeight)
                        {
                            _startPosY += (int)_gasolineTanker.Step;
                        }
                    }
                    break;
            }
        }
        
        public virtual void DrawTransport(Graphics g)
        {
            if (_gasolineTanker == null)
                return;
            Pen pen = new(_gasolineTanker.BodyColor, 2);
            Brush brush = new SolidBrush(_gasolineTanker.BodyColor);
            
            // Отрисовка корпуса
            g.FillRectangle(brush, 10 + _startPosX, 40 + _startPosY, 90, 20);
            g.FillRectangle(brush, 80 + _startPosX, 10 + _startPosY, 20, 40);
            // Отрисовка колесиков
            g.FillEllipse(brush, 10 + _startPosX, 60 + _startPosY, 20, 20);
            g.FillEllipse(brush, 30 + _startPosX, 60 + _startPosY, 20, 20);
            g.FillEllipse(brush, 80 + _startPosX, 60 + _startPosY, 20, 20);
            
            
            
            
        }

        public IMoveableObject GetMoveableObject => new DrawingObjectTanker(this);
    }
}