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

// Read words from file and store in 'words' array
int readWords(FILE *file, char words[][MAX_WORD_LEN],
              unsigned int maxWordCount) {

  if (file == NULL) {
    perror("File couldn't be opened");
    return 0;
  }

  char line[MAX_LINE_LEN];
  unsigned int wordCount = 0;

  while ((fgets(line, sizeof(line), file) != NULL) &&
         (wordCount < maxWordCount)) {
          
    // Token initialisieren
    char *token = strtok(line, " ,;.\n");

    while (token && (wordCount < maxWordCount)) {

      if (*token == '\0') {
        token = strtok(NULL, " ,;.\n");
        continue;
      }

      // Token in Großbuchstaben konvertieren
      for (int i = 0; token[i] != '\0'; i++) {
        token[i] = toupper(token[i]);
      }

      // In das words-Array kopieren
      strcpy(words[wordCount], token);

      wordCount++;                    // Nächstes Wort
      token = strtok(NULL, " ,;.\n"); // Nächstes Token
    }
  }

  return wordCount; // Anzahl der eingelesenen Wörter
}