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use chrono;
use soft_ascii_string::SoftAsciiString;
use internals::encoder::{EncodingWriter, EncodableInHeader};
use internals::error::EncodingError;
use ::HeaderTryFrom;
use ::error::ComponentCreationError;
#[cfg(feature="serde")]
use serde::{Serialize, Deserialize};
/// A DateTime header component wrapping chrono::DateTime<chrono::Utc>
#[derive(Debug, Clone, Hash, Eq, PartialEq)]
#[cfg_attr(feature="serde", derive(Serialize, Deserialize))]
pub struct DateTime(
#[cfg_attr(feature="serde", serde(with = "super::utils::serde::date_time"))]
chrono::DateTime<chrono::Utc>
);
impl DateTime {
/// create a new DateTime of the current Time
pub fn now() -> DateTime {
DateTime( chrono::Utc::now() )
}
/// create a new DateTime from a `chrono::DateTime<TimeZone>` for any `TimeZone`
pub fn new<TZ: chrono::TimeZone>( date_time: chrono::DateTime<TZ>) -> DateTime {
DateTime( date_time.with_timezone( &chrono::Utc ) )
}
#[doc(hidden)]
#[cfg(test)]
pub fn test_time( modif: u32 ) -> Self {
use chrono::prelude::*;
Self::new( FixedOffset::east( 3 * 3600 ).ymd( 2013, 8, 6 ).and_hms( 7, 11, modif ) )
}
}
impl EncodableInHeader for DateTime {
fn encode(&self, handle: &mut EncodingWriter) -> Result<(), EncodingError> {
let time = SoftAsciiString::from_unchecked(self.to_rfc2822());
handle.write_str( &*time )?;
Ok( () )
}
fn boxed_clone(&self) -> Box<EncodableInHeader> {
Box::new(self.clone())
}
}
impl<TZ> HeaderTryFrom<chrono::DateTime<TZ>> for DateTime
where TZ: chrono::TimeZone
{
fn try_from(val: chrono::DateTime<TZ>) -> Result<Self, ComponentCreationError> {
Ok(Self::new(val))
}
}
impl<TZ> From<chrono::DateTime<TZ>> for DateTime
where TZ: chrono::TimeZone
{
fn from(val: chrono::DateTime<TZ>) -> Self {
Self::new(val)
}
}
impl Into<chrono::DateTime<chrono::Utc>> for DateTime {
fn into(self) -> chrono::DateTime<chrono::Utc> {
self.0
}
}
deref0!{-mut DateTime => chrono::DateTime<chrono::Utc> }
#[cfg(test)]
mod test {
use super::DateTime;
ec_test!{ date_time, {
DateTime::test_time( 45 )
} => ascii => [
Text "Tue, 6 Aug 2013 04:11:45 +0000"
]}
}
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