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

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

int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
{
    unsigned int count = 0;
    int c;
    unsigned int idx = 0;

    if (!file) return 0;

    while ((c = fgetc(file)) != EOF && count < maxWordCount) {
        if (isalpha((unsigned char)c)) {
            if (idx < MAX_WORD_LEN - 1) {
                words[count][idx++] = (char) toupper((unsigned char)c);
            } else {
                // word too long: truncate remaining letters until delimiter
                idx = MAX_WORD_LEN - 1;
            }
        } else {
            if (idx > 0) {
                words[count][idx] = '\0';
                count++;
                idx = 0;
            }
            // skip consecutive delimiters
        }
    }

    // If file ended while reading a word, terminate and count it
    if (idx > 0 && count < maxWordCount) {
        words[count][idx] = '\0';
        count++;
    }

    return count;
}