#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>


typedef struct direction
{
    int x;
    int y;


}direction_t;

typedef struct snake
{
    direction_t *head;
    direction_t *tail;


}snake_t;

void array(char **ground, int size, int score);
void gen_food(char **table, int size, direction_t food, direction_t head);


    int main(int argc, char *argv[])

    {
        int score=0;
        int i,j;
        int size = atoi(argv[1]); //converting argument to integer

        if(size == 0)
        {
        printf("invalid input\n");
        exit(EXIT_FAILURE);
        }
        size += 2; //adding 2 extra lines/colums to array (?) ama balw a sto terminal
        char **ground;
		ground = (char**)malloc(size * sizeof(char*));
        direction_t food, head;
        gen_food(ground, size, food, head);
        array(ground,size,score);
        return 0;
    }



    void array(char **ground, int size, int score,direction_t food.x, direction_t food.x)
{
    int i,j;
    for( i=0; i<size; i++)
    {
        *(ground + i) = (char*)malloc(size * sizeof(char));

    }
    for(i=0; i<size; ++i)
    {

        for ( j=0; j < size; ++j)
        {
            if(i == 0 || i == size-1)
            {
                ground[i][j] = '-';
            }
            else if(j==0 || j == size-1)
            {
                ground[i][j] = '|';
            }
            else if (x.food == j && y.food == i ) {
				ground[i][j] = "X";
			}
            else
            {
                ground[i][j] = ' ';
            }
        }

    }
    for (i=0;i<size; ++i)
    {
        for(j=0;j<size; ++j)
        {
            printf("%c",ground[i][j]);
        }
        printf("\n");
    }

}


void gen_food(char **table, int size, direction_t food, direction_t head)
{


    srand ( time(NULL) );
    rand();
    food.x = rand()%(size+2);

    food.y = rand()%(size+2);

    head.x = rand()%(size+2);

    head.y = rand()%(size+2);
    if(food.x == head.x && food.y == head.y)
    {
        printf("please try again");
        system("exit");
    }
    else
    {
     if(food.x > 0 && food.y > 0)
     //{
        if(food.x < size && food.y < size)
        {
            table[food.x][food.y] = 'X';
            // printf("%c", table[food.x][food.y]);
            // printf("%d, %d\n", food.x, food.y);

        }
            else
            {
                system("exit");
            }

     //   else return 1;
    }


}