use std::time::Duration;

use serde::{self, Deserialize, Deserializer, Serializer};

pub fn serialize<S>(value: &Duration, se: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
{
    se.serialize_u64(value.as_secs() * 1000 + value.subsec_millis() as u64)
}

pub fn deserialize<'de, D>(de: D) -> Result<Duration, D::Error>
    where
        D: Deserializer<'de>,
{
    let s: u64 = u64::deserialize(de)?;
    Ok(Duration::from_millis(s))
}