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use crate::{timestamp, DefaultTimezone, Temporal};
use serde::{Deserialize, Serialize};
#[derive(Clone, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
pub struct Timestamp(pub i64);
impl Timestamp {
pub fn new() -> Self {
Self(timestamp())
}
pub fn now() -> chrono::DateTime<DefaultTimezone> {
chrono::Utc::now()
}
pub fn pretty() -> String {
Self::now().to_rfc3339()
}
pub fn ts() -> i64 {
chrono::Utc::now().timestamp()
}
}
impl Temporal for Timestamp {
fn timestamp(&self) -> i64 {
self.0
}
}
impl std::convert::TryFrom<String> for Timestamp {
type Error = crate::BoxError;
fn try_from(data: String) -> Result<Self, Self::Error> {
Self::try_from(data.as_str())
}
}
impl std::convert::TryFrom<&str> for Timestamp {
type Error = crate::BoxError;
fn try_from(value: &str) -> Result<Self, Self::Error> {
let dt = chrono::DateTime::parse_from_rfc3339(value)?;
Ok(Self(dt.timestamp()))
}
}
impl std::convert::From<&chrono::DateTime<chrono::Utc>> for Timestamp {
fn from(ts: &chrono::DateTime<chrono::Utc>) -> Self {
Self(ts.timestamp())
}
}
impl std::convert::From<&Timestamp> for Timestamp {
fn from(ts: &Timestamp) -> Self {
Self(ts.0)
}
}
impl std::convert::From<i64> for Timestamp {
fn from(ts: i64) -> Self {
Self(ts)
}
}
impl std::convert::From<Timestamp> for i64 {
fn from(ts: Timestamp) -> i64 {
ts.0
}
}
impl Default for Timestamp {
fn default() -> Self {
Self::new()
}
}
impl std::fmt::Display for Timestamp {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", serde_json::to_string(&self).unwrap())
}
}
#[cfg(test)]
mod tests {
use crate::{Temporal, Timestamp};
#[test]
fn test_timestamp() {
let ts = Timestamp::now();
let str_ts = ts.to_rfc3339();
let a = Timestamp::from(&ts);
let b = Timestamp::try_from(str_ts).unwrap();
assert_eq!(a, b)
}
#[test]
fn test_timestamp_default() {
let m = Timestamp::default();
let a = Timestamp::from(&m);
let b: i64 = Timestamp::from(&a).into();
assert_eq!(&m, &a);
assert_eq!(&a.timestamp(), &b);
}
}