use envkit::EnvLoader;

fn main() -> Result<(), envkit::error::EnvError> {
    unsafe {
        std::env::set_var("PORT", "8080");
        std::env::set_var("DEBUG", "true");
        std::env::set_var("APP_NAME", "envkit");
        std::env::set_var("ALLOWED_PORTS", "8080, 8081, 8082");
    }

    let loader = EnvLoader::new();

    let port: u16 = loader.get("PORT")?;
    let debug: bool = loader.get_or("DEBUG", false);
    let app_name: String = loader
        .get_opt("APP_NAME")
        .unwrap_or_else(|| "envkit".to_string());
    let allowed_ports: Vec<u16> = loader.get("ALLOWED_PORTS")?;

    println!("{app_name}");
    println!("port: {port}");
    println!("debug: {debug}");
    println!("allowed ports: {allowed_ports:?}");

    Ok(())
}