raventhemer 1.5.1

use std::fs;
extern crate time;
use std::env;
use std::fs::DirEntry;
use std::io;
use std::io::Read;
use std::time::Duration;

use std::process::Command;
use std::thread;
fn main() {
    if fs::metadata(get_home() + "/.config/raven/time").is_err() {
        println!("There is no time configured for ravend. Edit ~/.config/raven/time with a number of seconds.");
    } else {
        let mut time = String::new();
        fs::File::open(get_home() + "/.config/raven/time")
            .unwrap()
            .read_to_string(&mut time)
            .unwrap();
        time = String::from(time.trim());
        let time_r = time.parse::<i32>();
        if time_r.is_ok() {
            let time_t = time_r.unwrap();
            let themes = fs::read_dir(get_home() + "/.config/raven/themes")
                .expect("Couldn't read themes")
                .collect::<Vec<io::Result<DirEntry>>>()
                .into_iter()
                .map(|x| proc_path(x.unwrap()))
                .collect::<Vec<String>>();
            start_cycle(themes, time_t);
        } else {
            println!("Time file does not contain a number in seconds. {}", time);
        }
    }
}
fn get_home() -> String {
    return String::from(env::home_dir().unwrap().to_str().unwrap());
}
fn start_cycle(entries: Vec<String>, time: i32) {
    let mut index = 0;
    loop {
        let len = entries.len();
        if index >= len {
            index = 0;
        }
        Command::new("sh")
            .arg("-c")
            .arg(String::from("raven load ") + &entries[index] + " &")
            .spawn()
            .expect("Failed to swap.");
        thread::sleep(Duration::from_secs(time as u64));
        println!("Changing theme!");
        index = index + 1;
    }
}
fn proc_path(path: DirEntry) -> String {
    //Converts DirEntry into a fully processed file/directory name
    let base = path.file_name().into_string().unwrap();
    return base;
}