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

#define DELIMITERS " ,;\t\r\n"

// Read words from file and store in 'words' array
int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
{
    char puffer[MAX_LINE_LEN];
    unsigned int wordCount = 0; 

    if(file == NULL || words == NULL)
        return 0;
    
    //Liest die Datei Line by Line
    while(wordCount < maxWordCount && fgets(puffer, MAX_LINE_LEN, file) != NULL)
    {
        //Trennt das erste Wort der Zeichenkette, abhängig von den Teilerbedingungen
        char *token = strtok(puffer, DELIMITERS); 

        //geht über das token und speichert sie einzeln in Uppercase
        while(token != NULL && wordCount < maxWordCount)
        {
            unsigned int i = 0;

            while(token[i] != '\0' && i < MAX_WORD_LEN -1)
            {
                words[wordCount][i] = (char)toupper((unsigned char)token[i]);
                i++;
            }
            words[wordCount][i] = '\0';
            wordCount++;

            token = strtok(NULL, DELIMITERS);
        }
    }
    
    return wordCount;
}