use crate::UnitValue;

use super::*;

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

impl Display for TailwindIndent {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        self.kind.write_class(f, "indent-")
    }
}

impl TailwindInstance for TailwindIndent {
    fn attributes(&self, _: &TailwindBuilder) -> CssAttributes {
        let indent = self.kind.get_properties(|f| format!("{}rem", f / 4.0));
        css_attributes! {
            "text-indent" => indent
        }
    }
}

impl TailwindIndent {
    /// <https://tailwindcss.com/docs/text-indent>
    pub fn parse(pattern: &[&str], arbitrary: &TailwindArbitrary) -> Result<Self> {
        let kind = match pattern {
            ["px"] => UnitValue::px(1.0),
            _ => UnitValue::positive_parser("id", Self::check_valid, true, false, false)(pattern, arbitrary)?,
        };
        Ok(Self { kind })
    }
    /// https://developer.mozilla.org/en-US/docs/Web/CSS/word-break#syntax
    pub fn check_valid(mode: &str) -> bool {
        ["inherit", "initial", "revert", "unset"].contains(&mode)
    }
}