use super::*;
use log::error;
use std::collections::BTreeSet;

impl Display for TailwindInstruction {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        for v in &self.variants {
            write!(f, "{}", v)?
        }
        if self.negative {
            write!(f, "-")?
        }
        write!(f, "{}{}", self.elements, self.arbitrary)
    }
}

impl TailwindInstance for TailwindInstruction {
    fn attributes(&self, ctx: &TailwindBuilder) -> BTreeSet<CssAttribute> {
        let mut out = BTreeSet::default();
        match self.get_instance() {
            Ok(o) => out.extend(o.attributes(ctx)),
            Err(e) => {
                #[cfg(debug_assertions)]
                error!("{:?}", e)
            },
        }
        out
    }
}

impl Display for TailwindVariant {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        if self.not {
            write!(f, "not-")?
        }
        write!(f, "{}", self.names.join("-"))?;
        match self.pseudo {
            true => {
                write!(f, "::")
            },
            false => {
                write!(f, ":")
            },
        }
    }
}

impl Display for TailwindElements {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.inner.join("-"))
    }
}

impl Display for TailwindArbitrary {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        match self.inner.is_empty() {
            true => {
                write!(f, "")
            },
            false => {
                write!(f, "-[{}]", self.inner)
            },
        }
    }
}