use super::{ID, NTP64};
use alloc::string::String;
use core::{fmt, time::Duration};
use serde::{Deserialize, Serialize};
#[cfg(feature = "std")]
use core::str::FromStr;
#[derive(Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord, Deserialize, Serialize)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub struct Timestamp {
time: NTP64,
id: ID,
}
impl Timestamp {
#[inline]
pub fn new(time: NTP64, id: ID) -> Timestamp {
Timestamp { time, id }
}
#[inline]
pub fn get_time(&self) -> &NTP64 {
&self.time
}
#[inline]
pub fn get_id(&self) -> &ID {
&self.id
}
#[inline]
pub fn get_diff_duration(&self, other: &Timestamp) -> Duration {
(self.time - other.time).to_duration()
}
}
impl fmt::Display for Timestamp {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}/{}", self.time, self.id)
}
}
impl fmt::Debug for Timestamp {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}/{:?}", self.time, self.id)
}
}
#[cfg(feature = "std")]
impl FromStr for Timestamp {
type Err = ParseTimestampError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s.find('/') {
Some(i) => {
let (stime, srem) = s.split_at(i);
let time =
NTP64::from_str(stime).map_err(|e| ParseTimestampError { cause: e.cause })?;
let id =
ID::from_str(&srem[1..]).map_err(|e| ParseTimestampError { cause: e.cause })?;
Ok(Timestamp::new(time, id))
}
None => Err(ParseTimestampError {
cause: "No '/' found in String".into(),
}),
}
}
}
#[derive(Debug, Clone, PartialEq, Eq)]
#[cfg_attr(deature = "defmt", derive(defmt::Format))]
pub struct ParseTimestampError {
pub cause: String,
}
#[cfg(test)]
mod tests {
use crate::*;
use core::convert::TryFrom;
#[test]
fn test_timestamp() {
let id1: ID = ID::try_from([0x01]).unwrap();
let id2: ID = ID::try_from([0x02]).unwrap();
let ts1_epoch = Timestamp::new(Default::default(), id1);
#[cfg(feature = "std")]
assert_eq!(ts1_epoch.get_time().to_system_time(), std::time::UNIX_EPOCH);
#[cfg(not(feature = "std"))]
assert_eq!(ts1_epoch.get_time().as_u64(), 0);
assert_eq!(ts1_epoch.get_id(), &id1);
let ts2_epoch = Timestamp::new(Default::default(), id2);
#[cfg(feature = "std")]
assert_eq!(ts2_epoch.get_time().to_system_time(), std::time::UNIX_EPOCH);
#[cfg(not(feature = "std"))]
assert_eq!(ts2_epoch.get_time().as_u64(), 0);
assert_eq!(ts2_epoch.get_id(), &id2);
assert_ne!(ts1_epoch, ts2_epoch);
assert!(ts1_epoch < ts2_epoch);
#[cfg(feature = "std")]
let now = system_time_clock();
#[cfg(not(feature = "std"))]
let now = zero_clock();
let ts1_now = Timestamp::new(now, id1);
let ts2_now = Timestamp::new(now, id2);
assert_ne!(ts1_now, ts2_now);
assert!(ts1_now < ts2_now);
#[cfg(feature = "std")]
{
assert!(ts1_epoch < ts1_now);
assert!(ts2_epoch < ts2_now);
}
#[cfg(feature = "std")]
{
let s = ts1_now.to_string();
assert_eq!(ts1_now, s.parse().unwrap());
}
let diff = ts1_now.get_diff_duration(&ts2_now);
assert_eq!(diff, Duration::from_secs(0));
}
}