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

namespace CruiserMech
{
    internal class DrawingCruiser
    {
        /// Инициализация свойств (все параметры класса (сущности))
        public Class_CruiserEntity? CruiserEntity { get; private set; }


        /// Передача размеров поля для прорисовки (размеры поля - 2 параметра)
        private int? _pictureWidth;
        private int? _pictureHeight;


        public readonly int _CruiserMaxW = 302; // 262
        public readonly int _CruiserMaxH = 72; // 92


        /// Установка начальной позиции (координаты - 2 параметра:
        /// левая верхняя точка, от которой рисуется объект)
        private int? _startPosX;
        private int? _startPosY;


        public void Init(Class_CruiserEntity CruiserEntity)
        {
            CruiserEntity = new Class_CruiserEntity();
        }


        public bool SetPicSize(int w, int h)
        {
            if (w > _pictureWidth || h > _pictureHeight)
            {
                return false;
            }

            _pictureWidth = w;
            _pictureHeight = h;

            if (_startPosX != null || _startPosY != null)
            {
                SetPos(_startPosX.Value, _startPosY.Value);
            }

            return true;
        }

        public void SetPos(int x, int y)
        {
            if (!_pictureHeight.HasValue || !_pictureWidth.HasValue)
            {
                return;
            }

            if (x > _pictureWidth - _CruiserMaxW) _startPosX = _pictureWidth - _CruiserMaxW;
            else if (x < 0) _startPosX = 0;
            else _startPosX = x;

            if (y > _pictureHeight - _CruiserMaxH) _startPosY = _pictureHeight.Value - _CruiserMaxH;
            else if (y < 0) _startPosY = 0;
            else _startPosY = y;
        }

        public bool MoveTransport(DirectionType direction)
        {
            if (CruiserEntity == null || !_startPosX.HasValue ||
            !_startPosY.HasValue)
            {
                return false;
            }
            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX.Value - CruiserEntity.Step > 0)
                    {
                        _startPosX -= (int)CruiserEntity.Step;
                    }
                    return true;
                //вверх
                case DirectionType.Up:
                    if (_startPosY.Value - CruiserEntity.Step > 0)
                    {
                        _startPosY -= (int)CruiserEntity.Step;
                    }
                    return true;
                // вправо
                case DirectionType.Right:
                    if (_startPosX.Value + _CruiserMaxW + CruiserEntity.Step < _pictureWidth.Value)
                    {
                        _startPosX += (int)CruiserEntity.Step;
                    }
                    return true;
                //вниз
                case DirectionType.Down:
                    if (_startPosY.Value + _CruiserMaxH + CruiserEntity.Step < _pictureHeight.Value)
                    {
                        _startPosY += (int)CruiserEntity.Step;
                    }
                    return true;

                default:
                    return false;
            }
        }

        /// Перемещение объекта (удалось перемещение - true \ false)

        public void DrawTransport(Graphics g)
        {
            if (CruiserEntity == null || !_startPosX.HasValue ||
            !_startPosY.HasValue)
            {
                return;
            }

            Pen pen = new(Color.Black, 2);
            Brush PadBrush = new HatchBrush(HatchStyle.DottedDiamond, Color.LightGray, Color.Black);
            Brush additionalBrush = new SolidBrush(CruiserEntity.AdditionalC);
            Brush mainBrush = new SolidBrush(CruiserEntity.MainC);

            Random random = new();

            //границы cruiser

            //Point point0 = new Point(_startPosX.Value + 2, _startPosY.Value + 22);
            //Point point1 = new Point(_startPosX.Value + 5, _startPosY.Value + 66);
            //Point point2 = new Point(_startPosX.Value + 184, _startPosY.Value + 90); // max y : 92
            //Point point3 = new Point(_startPosX.Value + 184, _startPosY.Value + 70); // max x : 262
            //Point point4 = new Point(_startPosX.Value + 260, _startPosY.Value + 62);
            //Point point5 = new Point(_startPosX.Value + 260, _startPosY.Value + 32);
            //Point point6 = new Point(_startPosX.Value + 172, _startPosY.Value + 18);
            //Point point7 = new Point(_startPosX.Value + 160, _startPosY.Value + 2);
            //Point point8 = new Point(_startPosX.Value + 2, _startPosY.Value + 22);

            Point point0 = new Point(_startPosX.Value + 2, _startPosY.Value + 7);
            Point point1 = new Point(_startPosX.Value + 2, _startPosY.Value + 30);
            Point point2 = new Point(_startPosX.Value + 184, _startPosY.Value + 42);
            Point point3 = new Point(_startPosX.Value + 260, _startPosY.Value + 34);
            Point point4 = new Point(_startPosX.Value + 300, _startPosY.Value + 22);
            Point point5 = new Point(_startPosX.Value + 260, _startPosY.Value + 10);
            Point point6 = new Point(_startPosX.Value + 184, _startPosY.Value + 2);
            //Point point7 = new Point(_startPosX.Value + 2, _startPosY.Value + 36);

            Point[] boarders = {
                point0,
                point1,
                point2,
                point3,
                point4,
                point5,
                point6,
                //point7,
                //point8
            };

            g.DrawPolygon(pen, boarders);
            g.FillPolygon(mainBrush, boarders);

            // вертолетная площадка (3)

            //if (CruiserEntity.HelicopterPads)
            //{
            // random number of pads : from 1 to 3
            //    int n = CruiserEntity.values[0];
            //    int w = 15;
            //    int h = 41;

            //    for (int i = 1; i <= n; i++)
            //    {
            //        g.DrawEllipse(pen, _startPosX.Value + w, _startPosY.Value + h, 20, 20);
            //        g.FillEllipse(PadBrush, _startPosX.Value + w, _startPosY.Value + h, 20, 20);
            //        w += 28;
            //        h += 3;
            //    }
            //}


            if (CruiserEntity.HelicopterPads)
            {
                g.DrawEllipse(pen, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
                g.FillEllipse(PadBrush, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
            }


            // салон на верхней палубе
            if (CruiserEntity.Deckhouse)
            {
                // random location
                int y_h = CruiserEntity.values[1];
                g.DrawRectangle(pen, _startPosX.Value + 100, _startPosY.Value + y_h, 38, 24); // 40, 26

                g.DrawRectangle(pen, _startPosX.Value + 110, _startPosY.Value + y_h + 6, 20, 12);
                g.FillRectangle(additionalBrush, _startPosX.Value + 110, _startPosY.Value + y_h + 6, 20, 12);
                g.DrawRectangle(pen, _startPosX.Value + 117, _startPosY.Value + y_h + 18, 6, 20);
                g.FillRectangle(additionalBrush, _startPosX.Value + 117, _startPosY.Value + y_h + 18, 6, 20);
            }

            // ангар (2)
            //if (CruiserEntity.Hangar)
            //{
            //    int n = CruiserEntity.values[2];

            //    if (n == 1)
            //    {
            //        g.FillRectangle(additionalBrush, _startPosX.Value + 105, _startPosY.Value + 18, 14, 7);
            //    }

            //    else
            //    {
            //        g.FillRectangle(additionalBrush, _startPosX.Value + 146, _startPosY.Value + 52, 10, 26);
            //        g.FillRectangle(additionalBrush, _startPosX.Value + 160, _startPosY.Value + 58, 8, 12);
            //    }
            //}

            if (CruiserEntity.Hangar)
            {
                int n = CruiserEntity.values[2];
                if (n == 1) g.FillRectangle(additionalBrush, _startPosX.Value + 250, _startPosY.Value + 20, 14, 7);

                else
                {
                    g.FillRectangle(additionalBrush, _startPosX.Value + 80, _startPosY.Value + 10, 10, 20);
                    g.FillRectangle(additionalBrush, _startPosX.Value + 70, _startPosY.Value + 12, 8, 12);
                }
            }

        }
    }
}