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use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use crate::math::Uint64;
#[derive(
Serialize, Deserialize, Copy, Clone, Default, Debug, PartialEq, Eq, PartialOrd, Ord, JsonSchema,
)]
pub struct Timestamp(Uint64);
impl Timestamp {
pub const fn from_nanos(nanos_since_epoch: u64) -> Self {
Timestamp(Uint64::new(nanos_since_epoch))
}
pub const fn from_seconds(seconds_since_epoch: u64) -> Self {
Timestamp(Uint64::new(seconds_since_epoch * 1_000_000_000))
}
pub const fn plus_seconds(&self, addition: u64) -> Timestamp {
let nanos = Uint64::new(self.0.u64() + addition * 1_000_000_000);
Timestamp(nanos)
}
pub const fn plus_nanos(&self, addition: u64) -> Timestamp {
let nanos = Uint64::new(self.0.u64() + addition);
Timestamp(nanos)
}
pub fn nanos(&self) -> u64 {
self.0.u64()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn timestamp_from_nanos() {
let t = Timestamp::from_nanos(123);
assert_eq!(t.0.u64(), 123);
let t = Timestamp::from_nanos(0);
assert_eq!(t.0.u64(), 0);
}
#[test]
fn timestamp_from_seconds() {
let t = Timestamp::from_seconds(123);
assert_eq!(t.0.u64(), 123_000_000_000);
let t = Timestamp::from_seconds(0);
assert_eq!(t.0.u64(), 0);
}
#[test]
fn timestamp_plus_seconds() {
let sum = Timestamp::from_nanos(123).plus_seconds(42);
assert_eq!(sum.0.u64(), 42_000_000_123);
let sum = Timestamp::from_nanos(123).plus_seconds(0);
assert_eq!(sum.0.u64(), 123);
}
#[test]
fn timestamp_plus_nanos() {
let sum = Timestamp::from_nanos(123).plus_nanos(3);
assert_eq!(sum.0.u64(), 126);
let sum = Timestamp::from_nanos(123).plus_nanos(0);
assert_eq!(sum.0.u64(), 123);
}
#[test]
fn timestamp_nanos() {
let sum = Timestamp::from_nanos(123);
assert_eq!(sum.nanos(), 123);
let sum = Timestamp::from_nanos(0);
assert_eq!(sum.nanos(), 0);
}
}