use super::*;

#[doc=include_str!("readme.md")]
#[derive(Debug, Clone)]
pub struct TailwindVisibility {
    kind: StandardValue,
}

crate::macros::sealed::keyword_instance!(TailwindVisibility => "visibility");

impl Display for TailwindVisibility {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        match &self.kind {
            StandardValue::Keyword(s) => match s.as_str() {
                "visible" => write!(f, "visible"),
                "hidden" => write!(f, "invisible"),
                _ => write!(f, "visible-{}", s),
            },
            StandardValue::Arbitrary(s) => s.write_class(f, "visible-"),
        }
    }
}

impl TailwindVisibility {
    /// <https://tailwindcss.com/docs/visibility>
    pub fn parse(pattern: &[&str], arbitrary: &TailwindArbitrary) -> Result<Self> {
        let kind = match pattern {
            [] if arbitrary.is_none() => StandardValue::from("visible"),
            ["none"] => StandardValue::from("hidden"),
            _ => StandardValue::parser("visible", &Self::check_valid)(pattern, arbitrary)?,
        };
        Ok(Self { kind })
    }
    /// https://developer.mozilla.org/en-US/docs/Web/CSS/visibility#syntax
    pub fn check_valid(mode: &str) -> bool {
        let set = BTreeSet::from_iter(vec!["collapse", "hidden", "inherit", "initial", "revert", "unset", "visible"]);
        set.contains(mode)
    }
}