use std::time::Duration;
use indicatif::{MultiProgress, ProgressBar, ProgressStyle};

pub fn create_progress_bar(multi: &MultiProgress) -> (ProgressBar, impl Fn(&str, &str, usize, usize) + '_) {
    let pb = multi.add(ProgressBar::new(0));
    pb.enable_steady_tick(Duration::from_millis(50));
    pb.set_style(ProgressStyle::default_bar()
        .template("> {spinner:.blue} {prefix}")
        .unwrap());

    let pb_clone = pb.clone();
    let callback = move |prefix: &str, msg: &str, progress: usize, total: usize| {
        let pb = &pb_clone;
        if progress != 0 && total != 0 {
            pb.set_style(ProgressStyle::default_bar()
                .template("> {spinner:.blue} {prefix}\n      {msg} [{bar:40.cyan/blue}] {pos}/{len} ({eta})")
                .unwrap()
                .progress_chars("=> "));
        } else {
            pb.set_style(ProgressStyle::default_bar()
                .template("> {spinner:.blue} {prefix}")
                .unwrap());
        }

        if !prefix.is_empty() {
            pb.set_prefix(prefix.to_string());
        }

        pb.set_message(msg.to_string());
        pb.set_length(total as u64);
        pb.set_position(progress as u64);
    };

    (pb, callback)
}