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use std::{collections::HashMap, time::Instant};
#[derive(Default, Debug)]
pub struct ProgressSpinners {
inner: HashMap<usize, Spinner>,
}
impl ProgressSpinners {
pub fn get(&self, id: usize) -> Option<&Spinner> {
self.inner.get(&id)
}
pub fn get_or_create(&mut self, id: usize) -> &mut Spinner {
self.inner.entry(id).or_insert_with(Spinner::default)
}
}
impl Default for Spinner {
fn default() -> Self {
Self::dots(80)
}
}
#[derive(Debug)]
pub struct Spinner {
frames: Vec<&'static str>,
count: usize,
start: Option<Instant>,
interval: u64,
}
impl Spinner {
/// Creates a new spinner with `frames` and `interval`.
/// Expects the frames count and interval to be greater than 0.
pub fn new(frames: Vec<&'static str>, interval: u64) -> Self {
let count = frames.len();
assert!(count > 0);
assert!(interval > 0);
Self {
frames,
count,
interval,
start: None,
}
}
pub fn dots(interval: u64) -> Self {
Self::new(vec!["⣾", "⣽", "⣻", "⢿", "⡿", "⣟", "⣯", "⣷"], interval)
}
pub fn start(&mut self) {
self.start = Some(Instant::now());
}
pub fn frame(&self) -> Option<&str> {
let idx = (self
.start
.map(|time| Instant::now().duration_since(time))?
.as_millis()
/ self.interval as u128) as usize
% self.count;
self.frames.get(idx).copied()
}
pub fn stop(&mut self) {
self.start = None;
}
pub fn is_stopped(&self) -> bool {
self.start.is_none()
}
}
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