#include <cs50.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <ctype.h>

//declaring functions
int count_letters(string text);
int count_words(string text);
int count_sentences(string text);

int main(void)
{

    string text = get_string("text: ");


    int letters = count_letters(text);
    int words = count_words(text);
    int sentences = count_sentences(text);

    float L;
    float S;
    float index;

    L = (float) (100 * letters) / words;
    S = (float) (100 * sentences) / words;

    index = (0.0588 * L) - (0.296 * S) - 15.8;

    printf("index: %f\n", index);


}

//function to count letters

int count_letters(string text)
{
    int letters = 0;
    int len = strlen(text);

    for(int i = 0; i < len; i++)
    {
        letters = letters + 1;
    }


    for(int j = 0; j < len; j++)
    {
        if (isspace(text[j]))
        {
            letters = letters - 1;
        }
    }
    return letters;
}

//function to count words

int count_words(string text)
{
    int spaces = 0;

    int words;

    int len = strlen(text);

    for(int j = 0; j < len; j++)
    {
        if (isspace(text[j]))
        {
            spaces = spaces + 1;
        }
    }

    words = spaces + 1;
    return words;
}

//function to count sentences
int count_sentences(string text)
{
    int len = strlen(text);

    int sentences = 0;

    for(int j = 0; j < len; j++)
    {
        if (ispunct(text[j]))
        {
            sentences = sentences + 1;
        }
    }
    return sentences;
}