#include "game.h"
#include <time.h>
#include <stdlib.h>
#include <string.h>

#define MAX_RAND_TRIES_PER_WORD 10
#define EMPTY_CHAR 0

//TODO: Spiellogik implementieren:
/* * Wörter aus der Wortliste zufällig horizontal oder vertikal platzieren
   * restliche Felder mit zufälligen Buchstaben füllen */

void fillRestWithRandom(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN], unsigned int searchFieldLen)
{
    for (int i = 0; i < searchFieldLen; i++)
    {
        for (int j = 0; j < searchFieldLen; j++)
        {
            if (salad[i][j] == '0') {
                salad[i][j] = rand() % ('Z' - 'A' + 1) + 'A';
            }
        }
    }
}

// Creates the word salad by placing words randomly and filling empty spaces
//   - 2D array salad -> fertiger Wortsalat
//   - searchFieldLen -> Dimension der Salatschüssel
//   - 2D array words -> gegebene Wörter
//   - wordCount      -> anzahl an Wörtern
int createWordSalad(char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN], unsigned int searchFieldLen, const char words[][MAX_WORD_LEN], unsigned int wordCount)
{
    int placedWords = 0;

    for (int i = 0; i < searchFieldLen; i++)
    {
        for (int j = 0; j < searchFieldLen; j++)
        {
            salad[i][j] = '0';
        }
    }
    for (int i = 0; i < wordCount; i++)
    {
        int wordLength = strlen(words[i]);
        int xCoordinat = rand() % (searchFieldLen - wordLength + 1);
        int yCoordinat = rand() % searchFieldLen;
        if (rand() % 2) // erzeugt Zufallszahl 0 oder 1: 0 -> Horizontal; 1 -> Vertical
        {
            for (int placementTry = 0; placementTry < MAX_RAND_TRIES_PER_WORD; placementTry++)
            {
                int fits = 1;
                for (int j = xCoordinat; j < wordLength + xCoordinat; j++)
                {
                    if(salad[yCoordinat][j] != '0')
                    {
                        fits = 0;
                        break;
                    }
                }
                if (!fits) //neue Position versuchen, wenn ein Buchstabe schon belegt
                {
                    continue;
                }
                else //Wort platzieren
                {
                    for (int j = xCoordinat; j < wordLength + xCoordinat; j++)
                    {
                        salad[yCoordinat][j] = words[i][j - xCoordinat];
                    }
                    placedWords += 1;
                    break;
                }
            }
        }
        else
        {
            for (int placementTry = 0; placementTry < MAX_RAND_TRIES_PER_WORD; placementTry++)
            {
                int fits = 1;
                for (int j = yCoordinat; j < wordLength + yCoordinat; j++)
                {
                    if(salad[j][yCoordinat] != '0')
                    {
                        fits = 0;
                        break;
                    }
                }
                if (!fits) //neue Position versuchen, wenn ein Buchstabe schon belegt
                {
                    continue;
                }
                else //Wort platzieren
                {
                    for (int j = yCoordinat; j < wordLength + yCoordinat; j++)
                    {
                        salad[j][yCoordinat] = words[i][j - yCoordinat];
                    }
                    placedWords += 1;
                    break;
                }
            }
        }
    }
}

// Prints the word salad to console
void showWordSalad(const char salad[MAX_SEARCH_FIELD_LEN][MAX_SEARCH_FIELD_LEN], unsigned int searchFieldLen)
{

}