weather_util_rust 0.15.1

use derive_more::{Display, Into};
use serde::{Deserialize, Serialize};
use std::convert::TryFrom;

use crate::{format_string, Error};

/// Relative Humidity as Percent
#[derive(
    Into, Debug, PartialEq, Copy, Clone, PartialOrd, Serialize, Deserialize, Display, Default, Eq,
)]
#[serde(into = "i64", try_from = "i64")]
pub struct Humidity(i64);

impl TryFrom<i64> for Humidity {
    type Error = Error;
    fn try_from(item: i64) -> Result<Self, Self::Error> {
        if (0..=100).contains(&item) {
            Ok(Self(item))
        } else {
            Err(Error::InvalidValue(format_string!(
                "{item} is not a valid relative humidity"
            )))
        }
    }
}

#[cfg(test)]
mod test {
    use std::convert::TryFrom;

    use crate::{humidity::Humidity, Error};

    #[test]
    fn test_humidity() -> Result<(), Error> {
        let h = Humidity::try_from(86)?;
        let v: i64 = h.into();
        assert_eq!(v, 86);

        let h = Humidity::try_from(-86);
        assert!(h.is_err());
        assert_eq!(
            h.err().unwrap().to_string(),
            "Invalid Value Error -86 is not a valid relative humidity"
        );
        Ok(())
    }
}