using System;
using System.ComponentModel.Design;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.SetWindowSize(200, 70);
            Console.WriteLine("Выберите размеры карты");
            Console.Write("Ширина");
            int width = Convert.ToInt32(Console.ReadLine());
            Console.Write("Длина");
            int length = Convert.ToInt32(Console.ReadLine());
            Console.Clear();
            string[,] map = new string[length, width];
            CreatingMapBorders(ref map);
            EditModeOfMap(ref map);
            PlayerMovesAroundMap(map);
        }

        static void CreatingMapBorders(ref string[,] map)
        {
            for (int i = 0; i < map.GetLength(0); i++)
            {
                map[i, 0] = "#";
                map[i, map.GetLength(1) - 1] = "#";
            }
            for (int j = 0; j < map.GetLength(1); j++)
            {
                map[0, j] = "#";
                map[map.GetLength(0) - 1, j] = "#";
            }
        }

        static (int,int) FindingPlayerCoordinates(string[,] map)
        {
            (int X, int Y) currentPosition = (default, default);
            for (int i = 0; i < map.GetLength(0); i++)
                for (int j = 0; j < map.GetLength(1); j++)
                    if (map[i, j] == "@")
                         currentPosition = (j, i);
            return currentPosition;
        }

        static void PlayerMovesAroundMap(string[,] map)
        {
              var (X,Y) = FindingPlayerCoordinates(map);
            while (true)
            {
                DrawMap(map);
                var editPosition = (X, Y);
                ConsoleKeyInfo key = Console.ReadKey();
                editPosition = DirectionRecognition(editPosition, key);
                if (FailedMovementPlayer(editPosition, map))
                    continue;
                map[Y, X] = " ";
                (X, Y) = editPosition;
                map[Y, X] = "@";
            }
        }

        static (int, int) DirectionRecognition((int X, int Y) editPosition, ConsoleKeyInfo key)
        {
            switch (key.Key)
            {
                case ConsoleKey.UpArrow:
                    editPosition.Y--;
                    break;
                case ConsoleKey.DownArrow:
                    editPosition.Y++;
                    break;
                case ConsoleKey.LeftArrow:
                    editPosition.X--;
                    break;
                case ConsoleKey.RightArrow:
                    editPosition.X++;
                    break;
            }
            return editPosition;
        }

        static void EditModeOfMap(ref string[,] map)
        {
            (int X, int Y) currentPosition = (1, 1);
            while (true)
            {
                Console.SetCursorPosition(0,30);
                Console.WriteLine("End - построить решотку\nDelete-удалить объект\nPage Down - поставить игрока\nInsert-начать игру");
                DrawMap(map);
                Console.SetCursorPosition(currentPosition.X, currentPosition.Y);
                var editPosition = currentPosition;
                ConsoleKeyInfo key = Console.ReadKey();
                editPosition = DirectionRecognition(editPosition, key);
                if (MovementFailed(editPosition, map))
                    continue;
                currentPosition = editPosition;
                EditorMap(currentPosition, ref map, key);
                if (CheckingTransitionToGame(key) == false)
                    break;
            }
        }

        static bool CheckingTransitionToGame(ConsoleKeyInfo key)
        {
            if(key.Key == ConsoleKey.Insert)
            {
                return false;
            }
            else
            {
                return true;
            }
        }

        static void EditorMap((int X, int Y) point, ref string[,] map, ConsoleKeyInfo key )
        {
            switch (key.Key)
            {
                case ConsoleKey.End:
                    map[point.Y, point.X] = "#";
                    break;
                case ConsoleKey.Delete:
                    map[point.Y, point.X] = " ";
                    break;
                case ConsoleKey.PageDown:
                    map[point.Y, point.X] = "@";
                    break;
            }
        }

        static bool MovementFailed((int X, int Y) point, string[,] map)
        {
            if (point.X <= 0 || point.X >= (map.GetLength(1) - 1))
                return true;
            if (point.Y <= 0 || point.Y >= (map.GetLength(0) - 1))
                return true;
            return false;
        }

        static bool FailedMovementPlayer((int X, int Y) point, string[,] map)
        {
            if (point.X <= 0 || point.X >= (map.GetLength(1) - 1))
                return true;
            if (point.Y <= 0 || point.Y >= (map.GetLength(0) - 1))
                return true;
            if (map[point.Y, point.X] == "#")
                return true;
            return false;
        }

        static void DrawMap(string [,] map)
        {
            for (int i = 0; i < map.GetLength(0); i++)
                for (int j = 0; j < map.GetLength(1); j++)
                {
                    Console.SetCursorPosition(j, i);
                    Console.Write(map[i, j]);
                }
        }
    }
}