#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

int main(int argc, char *argv[])
{
    char* input_file;
    char* stats_file;
    char* c = (char *) calloc(100, sizeof(char));
    char* buff = (char*) calloc(200, sizeof(char));
    int filedesc;
    int i, i_max;
    char option;

    int numar_majuscule = 0;
    int numar_cifre = 0;
    int hard_links = 0;
    int i_nodes = 0;
    int size = 0;
    int nbytes;
    struct stat fileStat;

    if (argc != 3 && argc != 4) {
        printf("EROARE BOSS");
        return 1;
    }

    input_file = argv[1];
    stats_file = argv[2];
    option = argv[3];

    if (option == 's'){
        unlink(input_file);
        symlink(input_file, stats_file);
    }
    if (option == 'h'){
        unlink(input_file);
        link (input_file, stats_file);
    }

    if(lstat(input_file,&fileStat) < 0)
        return 1;
    filedesc = open(input_file, O_RDONLY);
    if(filedesc < 0)
        return 1;
    hard_links = fileStat.st_nlink;
    i_nodes = fileStat.st_ino;
    size = fileStat.st_size;
    while(i_max = read(filedesc, c, 100)) {
        for(i=0; i<i_max; i++){
            if (c[i] >= 'A' && c[i] <= 'Z')
                numar_majuscule++;
            if (c[i] >= '0' && c[i] <= '9')
                numar_cifre++;
        }
    }
    close(filedesc);

    filedesc = open(stats_file, O_WRONLY);
    sprintf(buff, "Numarul de cifre: %d\nNumarul de majuscule: %d\nhard_links: %d\ni_nodes: %d\nsize: %d", numar_cifre, numar_majuscule, hard_links, i_nodes, size);
    nbytes = strlen(buff);
    write(filedesc, buff, nbytes);
    close(filedesc);


}