using ProjectTank.Entities;
using System;
using System.Collections.Generic;
using System.Drawing.Drawing2D;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ProjectTank.DrawningObjects
{
    public class DrawningTankBase
    {
        public EntityTankBase? EntityTankBase { get; protected set; }
        private int pictureWidth;
        private int pictureHeight;
        protected int startPosX;
        protected int startPosY;
        protected readonly int tankWidth = 150;
        protected readonly int tankHeight = 100;

        public int GetPosX => startPosX; 
        public int GetPosY => startPosY;
        public int GetWidth => tankWidth;
        public int GetHeight => tankHeight;
        public DrawningTankBase(int speed, int weight, Color bodyColor, int width, int height)
        {
            if (width <= tankWidth || height <= tankHeight) return;

            pictureWidth = width;
            pictureHeight = height;
            EntityTankBase = new EntityTankBase(speed, weight, bodyColor);
        }
        protected DrawningTankBase(int speed, int weight, Color bodyColor, int width, int height, int _tankWidth, int _tankHeight)
        {
            if (width <= tankWidth || height <= tankHeight) return;

            pictureWidth = width;
            pictureHeight = height;
            tankWidth = _tankWidth;
            tankHeight = _tankHeight;
            EntityTankBase = new EntityTankBase(speed, weight, bodyColor);
        }
        public bool CanMove(DirectionType direction)
        {
            if (EntityTankBase == null) return false;

            return direction switch
            {
                DirectionType.Left => startPosX - EntityTankBase.Step > 0,
                DirectionType.Up => startPosY - EntityTankBase.Step > 0,
                DirectionType.Right => startPosX + tankWidth + EntityTankBase.Step < pictureWidth,
                DirectionType.Down => startPosY + tankHeight + EntityTankBase.Step < pictureHeight,
                _ => false,
            };
        }
        public void SetPosition(int x, int y)
        {
            if (EntityTankBase == null) return;
            startPosX = x;
            startPosX = y;

            if (x + tankWidth >= pictureWidth || y + tankHeight >= pictureHeight)
            {
                startPosX = 1;
                startPosY = 1;
            }
        }
        public void MoveTransport(DirectionType direction)
        {
            if (!CanMove(direction) || EntityTankBase == null) return;

            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    startPosX -= (int)EntityTankBase.Step;
                    break;
                //вверх
                case DirectionType.Up:
                    startPosY -= (int)EntityTankBase.Step;
                    break;
                // вправо
                case DirectionType.Right:
                    startPosX += (int)EntityTankBase.Step;
                    break;
                //вниз
                case DirectionType.Down:
                    startPosY += (int)EntityTankBase.Step;
                    break;
            }
        }
        public virtual void DrawTransport(Graphics g)
        {
            if (EntityTankBase == null) return;

            Pen pen = new(EntityTankBase.BodyColor);

            // гусеница
            GraphicsPath path = new GraphicsPath();

            int cornerRadius = 20;

            path.AddArc(startPosX, startPosY + 65, cornerRadius, cornerRadius, 180, 90);
            path.AddArc(startPosX + tankWidth - cornerRadius, startPosY + 65, cornerRadius, cornerRadius, 270, 90);
            path.AddArc(startPosX + tankWidth - cornerRadius, startPosY + tankHeight - cornerRadius, cornerRadius, cornerRadius, 0, 90);
            path.AddArc(startPosX, startPosY + tankHeight - cornerRadius, cornerRadius, cornerRadius, 90, 90);

            path.CloseFigure();
            g.DrawPath(pen, path);

            // колеса
            g.DrawEllipse(pen, startPosX + 1, startPosY + tankHeight - 5 - 25, 25, 25);
            for (int i = 1; i < 5; i++)
            {
                g.DrawEllipse(pen, startPosX + 30 + 5 * i + 15 * (i - 1), startPosY + tankHeight - 5 - 15, 15, 15);
            }
            g.DrawEllipse(pen, startPosX + tankWidth - 25 - 1, startPosY + tankHeight - 5 - 25, 25, 25);

            // башня
            SolidBrush brush = new SolidBrush(EntityTankBase.BodyColor);
            g.FillRectangle(brush, startPosX + 45, startPosY + 30, 60, 25);

            g.FillRectangle(brush, startPosX + 5, startPosY + 55 + 1, tankWidth - 10, 9);
        }
    }
}