#include "MinesweeperBoard.h"
#include <iostream>
#include<cstdlib>
#include<time.h>
using namespace std;


MinesweeperBoard::MinesweeperBoard(int outWidth,int outHeight,GameMode mode)
{
    MineCount=0;
    width=outWidth;
    height=outHeight;
    int x,y;
    srand(time(NULL));

    if(mode==EASY)
        {
          for(int i=0;i<height;i++)
             for(int j=0;j<width;j++)
                board[j][i].isRevealed=false;

        allMines=0.1*width*height;
            for(int i=0;i<allMines;i++)
            {
                x=rand()%width;
                y=rand()%height;
                if(board[x][y].hasMine==true)
                {
                    do{
                    x=rand()%width;
                    y=rand()%height;
                    }while(board[x][y].hasMine==false);
                        board[x][y].hasMine=true;
                }
                else
                board[x][y].hasMine=true;

            }
    }

    else if(mode==NORMAL)
        {
            for(int i=0;i<height;i++)
                for(int j=0;j<width;j++)
                    board[j][i].isRevealed=false;

        allMines=0.2*width*height;
            for(int i=0;i<allMines;i++)
            {
                x=rand()%width;
                y=rand()%height;
                if(board[x][y].hasMine==true)
                {
                    do{
                    x=rand()%width;
                    y=rand()%height;
                    }while(board[x][y].hasMine==false);
                        board[x][y].hasMine=true;
                }
                else
                board[x][y].hasMine=true;

            }
    }

    else if(mode==HARD)
        {
        for(int i=0;i<height;i++)
            for(int j=0;j<width;j++)
                board[j][i].isRevealed=false;

        allMines=0.3*width*height;
            for(int i=0;i<allMines;i++)
            {
                x=rand()%width;
                y=rand()%height;
                if(board[x][y].hasMine==true)
                {
                    do{
                    x=rand()%width;
                    y=rand()%height;
                    }while(board[x][y].hasMine==false);
                        board[x][y].hasMine=true;
                }
                else
                board[x][y].hasMine=true;

            }
    }

    else if(mode==DEBUG)
    {
        for(int i=0;i<height;i++)
        for(int j=0;j<width;j++)
        {
            board[j][i].isRevealed=false;



            if(i==j)
            board[j][i].hasMine=true;

            else if(i==0)
            board[j][i].hasMine=true;

            else if(j==0&&i%2==0)
            board[j][i].hasMine=true;
        }

    }

}


MinesweeperBoard::getBoardHeight()const
{
    return height;
}
MinesweeperBoard::getBoardWidth()const
{
    return width;

}
MinesweeperBoard::getMineCount()const
{
    return MineCount;
}
int MinesweeperBoard::countMines(int x,int y)
{



    int mines=0;


            if(board[x][y].isRevealed==true)
                return -1;

            if(x<0 || x>height || y<0 ||y>width)
               return -1;


            if(x==0)
            {
            if(board[x][y-1].hasMine==true)
                mines++;

            if(board[x][y+1].hasMine==true)
                mines++;

            if(board[x+1][y-1].hasMine==true)
                mines++;

            if(board[x+1][y].hasMine==true)
                mines++;

            if(board[x+1][y+1].hasMine==true)
                mines++;
            }

           else if(y==0)
            {
                if(board[x-1][y].hasMine==true)
                mines++;

                 if(board[x][y+1].hasMine==true)
                mines++;

                if(board[x+1][y].hasMine==true)
                mines++;

                if(board[x+1][y+1].hasMine==true)
                mines++;

                if(board[x-1][y+1].hasMine==true)
                mines++;

            }

            else
            {

            if(board[x-1][y-1].hasMine==true)
                mines++;

            if(board[x-1][y].hasMine==true)
                mines++;

            if(board[x-1][y+1].hasMine==true)
                mines++;

            if(board[x][y-1].hasMine==true)
                mines++;

            if(board[x][y+1].hasMine==true)
                mines++;

            if(board[x+1][y-1].hasMine==true)
                mines++;

            if(board[x+1][y].hasMine==true)
                mines++;

            if(board[x+1][y+1].hasMine==true)
                mines++;

            }

    MineCount=mines;

    return MineCount;
}

void MinesweeperBoard::debug_display()const
{

    for(int i=0; i<height; i++)
      {

        for(int j=0; j<width; j++)
        {
            cout<<"[";

            if(board[j][i].hasMine==false)
                cout<<".";
            else
                cout<<"M";

            if(board[j][i].isRevealed==false)
                cout<<".";
            else
                cout<<"o";

            if(board[j][i].hasFlag==false)
                cout<<".";
            else
                cout<<"f";

            cout<<"]";
            }
            cout<<endl;
      }

}
int MinesweeperBoard::hasFlag(int x, int y)const
{


    if(board[x][y].hasFlag==true)
        return true;

    else if(board[x][y].isRevealed==true ||x<0 || x>height || y<0 || y>width || board[x][y].hasFlag==false )
        return false;
}

void MinesweeperBoard::toggleFlag(int x,int y)
{
    if(board[x][y].isRevealed==false)
    {
        if(board[x][y].hasFlag==true)
            board[x][y].hasFlag=false;

        else if(board[x][y].hasFlag==false)
            board[x][y].hasFlag=true;
    }
}

void MinesweeperBoard::revealField(int x,int y)
{
    if(board[x][y].isRevealed==false)
        board[x][y].isRevealed=true;

    else if(board[x][y].isRevealed==false&&board[x][y].hasMine==true)
    {
        board[x][y].isRevealed=true;
        state=FINISHED_LOSS;
    }
}


bool MinesweeperBoard::isRevealed(int x,int y)const
{
    if(board[x][y].isRevealed==true)
        return true;
}

GameState MinesweeperBoard::getGameState()const
{
     int X=0,Y=0;


        for(int i=0;i<height;i++)
                for(int j=0;j<width;j++)
                    {
                        if(board[j][i].hasMine==true && board[j][i].isRevealed==true)
                            X=1;

                        else if((board[j][i].hasMine==true && board[j][i].isRevealed==false)||(board[j][i].hasMine==true && board[j][i].hasFlag==true))
                                Y++;
                    }
        if(X==1)
            return FINISHED_LOSS;

        else if(Y==allMines)
            return FINISHED_WIN;

        else if(Y<allMines)
            return RUNNING;

}


char MinesweeperBoard::getFieldInfo(int x,int y)const
{
    char q=MineCount+48;


    if(x<0 || x>height || y<0 || y>width)
        return '#';

    else if(board[x][y].hasFlag==true &&board[x][y].isRevealed==false)
        return 'F';

    else if(board[x][y].hasFlag==false &&board[x][y].isRevealed==false)
        return '_';

    else if(board[x][y].isRevealed==true &&board[x][y].hasMine==true)
        return 'x';

     else if(board[x][y].isRevealed==true && MineCount==0)
        return ' ';

    else if(board[x][y].isRevealed==true && MineCount>0)
        return q;


}