#include "input.h"
#include <string.h>
#include <ctype.h>

static char *buffer;

// TODO?
// eine Funktion implementieren, die ein einzelnes Wort aus einer Textdatei (words.txt) einliest und als C-String zurückgibt.

// Read words from file and store in 'words' array
int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
{
    int i           = 0;
    int word        = 0;
    int wordChar    = 0;
    int firstLetter = 0;

    if (file == NULL)
    {
        return 0;
    }
    
    fgets(buffer, MAX_LINE_LEN * maxWordCount, file);
    //fscanf(file, "%s", buffer);
    
    do
    {

        if ((buffer[i] >= 'A') && (buffer[i] <= 'Z'))
        {
            if (!firstLetter)
            {
                firstLetter = 1;
            }
                
            words[word][wordChar] = buffer[i];
            wordChar++;
        }
        else if ((buffer[i] >= 'a') && (buffer[i] <= 'z'))
        {
            if (!firstLetter)
            {
                firstLetter = 1;
            }

            words[word][wordChar] = toupper(buffer[i]);
            wordChar++;
        }
        else if (firstLetter)
        {
            words[word][wordChar] = '\0';
            word++;
            wordChar = 0;
            firstLetter = 0;
        }

        i++;
    } while ((i < MAX_LINE_LEN) && (word < maxWordCount));
    
    return word + 1; 
}