randomorg 1.0.4

A random.org client library. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs.
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//! This module contains custom deserialization for non iso8601 dates given by random.org.
//! If there is no incorrect date - it will use default deserialization of `chrono` crate.

use std::fmt;

use chrono::NaiveDateTime;
use serde::de;

struct NaiveDateTimeFromMyFormatVisitor;

pub fn deserialize<'de, D>(d: D) -> Result<NaiveDateTime, D::Error>
where
    D: de::Deserializer<'de>,
{
    Ok(d.deserialize_str(NaiveDateTimeFromMyFormatVisitor)?)
}

impl<'de> de::Visitor<'de> for NaiveDateTimeFromMyFormatVisitor {
    type Value = NaiveDateTime;

    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
        write!(formatter, "a datetime string")
    }

    fn visit_str<E>(self, value: &str) -> Result<NaiveDateTime, E>
    where
        E: de::Error,
    {
        match NaiveDateTime::parse_from_str(value, "%Y-%m-%d %H:%M:%SZ") {
            Ok(d) => Ok(d),
            Err(_) => NaiveDateTime::parse_from_str(value, "%Y-%m-%d %H:%M:%SZ")
                .map_err(|e| E::custom(format!("Parse error {} for {}", e, value))),
        }
    }
}