use envconfig::Envconfig;

pub enum CuddleFetchPolicy {
    Always,
    Once,
    Never,
}

#[derive(Envconfig, Clone)]
pub struct CuddleConfig {
    #[envconfig(from = "CUDDLE_FETCH_POLICY", default = "once")]
    fetch_policy: String,
}

impl CuddleConfig {
    pub fn from_env() -> anyhow::Result<Self> {
        CuddleConfig::init_from_env().map_err(|e| anyhow::Error::from(e))
    }

    pub fn get_fetch_policy(&self) -> anyhow::Result<CuddleFetchPolicy> {
        match self.fetch_policy.clone().to_lowercase().as_str() {
            "always" => Ok(CuddleFetchPolicy::Always),
            "once" => Ok(CuddleFetchPolicy::Once),
            "never" => Ok(CuddleFetchPolicy::Never),
            _ => Err(anyhow::anyhow!("could not parse fetch policy")),
        }
    }
}