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use std::thread;
use std::time::Duration;

use indicatif::{MultiProgress, ProgressBar, ProgressStyle};

use rand::Rng;

fn main() {
    let m = MultiProgress::new();
    let sty = ProgressStyle::with_template(
        "[{elapsed_precise}] {bar:40.cyan/blue} {pos:>7}/{len:7} {msg}",
    )
    .unwrap()
    .progress_chars("##-");

    let n = 200;
    let pb = m.add(ProgressBar::new(n));
    pb.set_style(sty.clone());
    pb.set_message("todo");
    let pb2 = m.add(ProgressBar::new(n));
    pb2.set_style(sty.clone());
    pb2.set_message("finished");

    let pb3 = m.insert_after(&pb2, ProgressBar::new(1024));
    pb3.set_style(sty);

    m.println("starting!").unwrap();

    let mut threads = vec![];

    let m_clone = m.clone();
    let h3 = thread::spawn(move || {
        for i in 0..1024 {
            thread::sleep(Duration::from_millis(2));
            pb3.set_message(format!("item #{}", i + 1));
            pb3.inc(1);
        }
        m_clone.println("pb3 is done!").unwrap();
        pb3.finish_with_message("done");
    });

    for i in 0..n {
        thread::sleep(Duration::from_millis(15));
        if i == n / 3 {
            thread::sleep(Duration::from_secs(2));
        }
        pb.inc(1);
        let m = m.clone();
        let pb2 = pb2.clone();
        threads.push(thread::spawn(move || {
            let spinner = m.add(ProgressBar::new_spinner().with_message(i.to_string()));
            spinner.enable_steady_tick(Duration::from_millis(100));
            thread::sleep(
                rand::thread_rng().gen_range(Duration::from_secs(1)..Duration::from_secs(5)),
            );
            pb2.inc(1);
        }));
    }
    pb.finish_with_message("all jobs started");

    for thread in threads {
        let _ = thread.join();
    }
    let _ = h3.join();
    pb2.finish_with_message("all jobs done");
    m.clear().unwrap();
}