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use std::time::{Duration, Instant};
use instruments::{Instrument, Update, Updates};
use snapshot::Snapshot;
use util;
use {Descriptive, PutsSnapshot};
pub struct OccurrenceIndicator {
name: String,
title: Option<String>,
description: Option<String>,
if_happened_within: Duration,
happened_last: Instant,
invert: bool,
}
impl OccurrenceIndicator {
pub fn new_with_defaults<T: Into<String>>(name: T) -> OccurrenceIndicator {
OccurrenceIndicator {
name: name.into(),
title: None,
description: None,
if_happened_within: Duration::from_secs(60),
happened_last: Instant::now() - Duration::from_secs(60),
invert: false,
}
}
pub fn name(&self) -> &str {
&self.name
}
pub fn set_name<T: Into<String>>(&mut self, name: T) {
self.name = name.into();
}
pub fn set_title<T: Into<String>>(&mut self, title: T) {
self.title = Some(title.into())
}
pub fn set_description<T: Into<String>>(&mut self, description: T) {
self.description = Some(description.into())
}
pub fn set_invert(&mut self, invert: bool) {
self.invert = invert
}
pub fn enable_invert(&mut self) {
self.invert = true
}
pub fn invert(&self) -> bool {
self.invert
}
pub fn set_if_happened_within(&mut self, d: Duration) {
self.if_happened_within = d;
self.happened_last = Instant::now() - d;
}
pub fn if_happened_within(&self) -> Duration {
self.if_happened_within
}
pub fn state(&self) -> bool {
let current_state = self.happened_last + self.if_happened_within >= Instant::now();
if self.invert {
!current_state
} else {
current_state
}
}
}
impl Instrument for OccurrenceIndicator {}
impl PutsSnapshot for OccurrenceIndicator {
fn put_snapshot(&self, into: &mut Snapshot, descriptive: bool) {
util::put_postfixed_descriptives(self, &self.name, into, descriptive);
into.items.push((self.name.clone(), self.state().into()));
}
}
impl Updates for OccurrenceIndicator {
fn update(&mut self, _: &Update) {
self.happened_last = Instant::now()
}
}
impl Descriptive for OccurrenceIndicator {
fn title(&self) -> Option<&str> {
self.title.as_ref().map(|n| &**n)
}
fn description(&self) -> Option<&str> {
self.description.as_ref().map(|n| &**n)
}
}