pub mod web {
    /// Macro shenanigans to format a str at compile time
    pub macro make_static_cache_header($max_age:expr, $stale_revalidate:expr) {{
        // type guards lmfao
        const _: ::std::time::Duration = $max_age;
        const _: ::std::time::Duration = $stale_revalidate;

        // hopefully ident encapsulation will save my ass here
        const MAX_AGE: u64 = $max_age.as_secs();
        const STALE_REVALIDATE: u64 = $stale_revalidate.as_secs();

        const_str::format!(
            "public, max-age={}, stale-while-revalidate={}",
            MAX_AGE,
            STALE_REVALIDATE
        )
    }}

    #[cfg(test)]
    mod test {
        use std::time::Duration;

        #[test]
        fn const_concat_worked() {
            const MA: Duration = Duration::from_mins(15);
            const SR: Duration = Duration::from_hours(1);

            const NAME: &str = super::make_static_cache_header!(MA, SR);
            assert_eq!(
                NAME,
                format!(
                    "public, max-age={}, stale-while-revalidate={}",
                    MA.as_secs(),
                    SR.as_secs()
                )
            );
        }
    }
}