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

// Trennzeichen, die in words.txt zwischen den Wörtern vorkommen
static int isDelimiter(int c)
{
    return c == ',' || c == ';' || isspace((unsigned char)c);
}

// Read words from file and store in 'words' array
int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
{
    if (file == NULL || words == NULL)
    {
        return 0;
    }

    unsigned int count = 0;
    unsigned int len = 0;
    int c;

    while (count < maxWordCount && (c = fgetc(file)) != EOF)
    {
        if (isDelimiter(c))
        {
            if (len > 0)
            {
                words[count][len] = '\0';
                count++;
                len = 0;
            }
        }
        else if (len < MAX_WORD_LEN - 1)
        {
            words[count][len++] = (char)toupper((unsigned char)c);
        }
    }

    if (len > 0 && count < maxWordCount)
    {
        words[count][len] = '\0';
        count++;
    }

    return (int)count;
}