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mod builtin;
mod traits;
use super::*;

#[derive(Clone, Debug)]
pub struct PaletteSystem {
    /// Allow gradients?
    gradient: bool,
    inner: HashMap<String, Palette>,
}

impl PaletteSystem {
    /// Builtin palettes
    /// https://tailwindcss.com/docs/customizing-colors
    pub fn builtin() -> Self {
        let mut new = Self::default();
        new.register("slate".to_string(), Palette::slate());
        new.register("gray".to_string(), Palette::gray());
        new.register("zinc".to_string(), Palette::zinc());
        new.register("neutral".to_string(), Palette::neutral());
        new.register("stone".to_string(), Palette::stone());
        new.register("red".to_string(), Palette::red());
        new.register("orange".to_string(), Palette::orange());
        new.register("amber".to_string(), Palette::amber());
        new.register("yellow".to_string(), Palette::yellow());
        new.register("lime".to_string(), Palette::lime());
        new.register("green".to_string(), Palette::green());
        new.register("emerald".to_string(), Palette::emerald());
        new.register("teal".to_string(), Palette::teal());
        new.register("cyan".to_string(), Palette::cyan());
        new.register("sky".to_string(), Palette::sky());
        new.register("blue".to_string(), Palette::blue());
        new.register("indigo".to_string(), Palette::indigo());
        new.register("violet".to_string(), Palette::violet());
        new.register("purple".to_string(), Palette::purple());
        new.register("fuchsia".to_string(), Palette::fuchsia());
        new.register("pink".to_string(), Palette::pink());
        new.register("rose".to_string(), Palette::rose());
        return new;
    }

    #[inline]
    pub fn register(&mut self, name: String, colors: Palette) -> Option<Palette> {
        self.inner.insert(name, colors)
    }
}

/// In general, it is a look-up table.
///
/// When the color is automatically mixed when the interpolation expression is activated.
#[derive(Clone, Debug)]
pub struct Palette {
    /// min-width
    /// unit: px
    inner: BTreeMap<usize, Color>,
}

#[derive(Clone, Debug)]
pub enum ColorResolver {
    Inherit,
    Current,
    Transparent,
    Black,
    White,
    Themed { name: String, weight: usize },
}

impl ColorResolver {
    #[inline]
    pub fn new(name: impl Into<String>, weight: usize) -> Self {
        Self::Themed { name: name.into(), weight }
    }
    pub fn resolve(&self, ctx: &TailwindBuilder) -> String {
        let out = match self {
            Self::Inherit => "inherit",
            Self::Current => "currentColor",
            Self::Transparent => "transparent",
            Self::Black => "rgb(0 0 0)",
            Self::White => "rgb(255 255 255)",
            Self::Themed { name, weight } => {
                return match Self::resolve_themed(name, *weight, ctx) {
                    None => "inherit".to_string(),
                    Some(s) => s,
                };
            }
        };
        out.to_string()
    }
    #[inline]
    fn resolve_themed(name: &str, weight: usize, ctx: &TailwindBuilder) -> Option<String> {
        let p = ctx.colors.inner.get(name)?;
        let _ = (p, weight);
        todo!()
    }
}