/* Reads text from stdio and creates comment using unix fs driver in current directory */
/* TODO: add path, displayname as arguments */

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>

#include "comment.h"
#include "driver.h"
#include "drivers/unix_fs/unix_fs_driver.h"

char *
get_username()
{
    uid_t uid = geteuid();
    struct passwd *pw = getpwuid(uid);
    if (pw) {
        return pw->pw_name;
    }
    return "";
}

int
main(int argc, const char *argv[])
{
    const Driver *driver = &unix_fs_driver;
    char *path = ".";

    char *user_sid = get_username();
    char *user_displayname = user_sid;
    int reply_id = 0;

    size_t cur_buf_size = 256;
    size_t idx = 0;

    char *text = malloc(cur_buf_size);

    int ch;
    while ((ch = getchar()) != EOF) {
        if (idx + 1 == cur_buf_size) {
            cur_buf_size *= 2;
            text = realloc(text, cur_buf_size);
        }
        text[idx++] = ch;
    }
    text[idx] = '\0';

    time_t current_time;
    time(&current_time);

    UnixFsDriverData driver_data = { path };

    CommentHeader *header = mk_comment_header(reply_id, current_time, strlen(text), user_sid, user_displayname);

    int retval = driver->leave_comment(&driver_data, header, text);
    free(text);
    if (retval < 0) {
        return retval;
    } else {
        return 0;
    }
}