use std::path::PathBuf;

pub struct Config {
    pub bind_addr: String,
    /// Path to a DESI data file (JSON) to serve; `None` falls back to the
    /// built-in placeholder catalogs.
    pub desi_data: Option<PathBuf>,
}

impl Config {
    pub fn from_env() -> anyhow::Result<Self> {
        let bind_addr =
            std::env::var("API_BIND_ADDR").unwrap_or_else(|_| "0.0.0.0:8080".to_string());

        let desi_data = std::env::var("API_DESI_DATA")
            .ok()
            .filter(|s| !s.is_empty())
            .map(PathBuf::from);

        Ok(Self {
            bind_addr,
            desi_data,
        })
    }
}