gracilaria - A simple CPU rendered GUI IDE experience.


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use std::iter::{empty, repeat};

use Default::default;
use dsb::Cell;
use dsb::cell::Style;
use lsp_types::LocationLink;
use rust_analyzer::lsp::ext::{Runnable, RunnableKind};

use crate::menu::generic::{GenericMenu, MenuData};
use crate::menu::{Key, charc};
use crate::text::{col, color_, set_a};

pub enum Runb {}
impl MenuData for Runb {
    type Data = Vec<Runnable>;

    type Element<'a> = &'a Runnable;

    fn gn<'a>(
        x: &'a Self::Data,
    ) -> impl Iterator<Item = Self::Element<'a>> {
        x.iter()
    }

    fn r(
        _: &'_ Self::Data,
        x: Self::Element<'_>,
        workspace: &std::path::Path,
        columns: usize,
        selected: bool,
        indices: &[u32],
        to: &mut Vec<dsb::Cell>,
    ) {
        let bg = if selected { col!("#262d3b") } else { col!("#1c212b") };

        let ds: Style = Style::new(crate::FG, bg);
        let d: Cell = Cell { letter: None, style: ds };
        let mut b = vec![d; columns];
        const MAP: [([u8; 3], [u8; 3], &str); 70] = {
            car::map!(
                amap::amap! {
                    const { RunnableKind::Cargo as usize } => ("#9a9b9a", "󱣘 "),
                    const { RunnableKind::Shell as usize } => ("#FFAD66", "$ "),
                    _ => ("#9a9b9a", " "),
                },
                |(x, y)| (set_a(color_(x), 0.5), color_(x), y)
            )
        };
        let (bgt, col, ty) = MAP[x.kind.clone() as usize];
        b.iter_mut().zip(ty.chars()).for_each(|(x, c)| {
            *x = (Style::new(col, bgt) | Style::BOLD).basic(c)
        });
        let i = &mut b[2..];
        // let qualifier = x
        //     .location
        //     .as_ref()
        //     .into_iter()
        // .flat_map(|x| &x.detail)
        //     .flat_map(_.chars());
        let qualifier = empty();
        let left = i.len() as i32
            - (charc(&x.label) as i32 + qualifier.clone().count() as i32)
            - 3;
        let loc = match &x.location {
            Some(LocationLink { target_uri, .. }) =>
                Some(target_uri.to_file_path().unwrap()),
            _ => None,
            // GoTo::R(_) => None,
        };
        let locs = {
            loc.as_ref()
                .and_then(|x| {
                    x.strip_prefix(workspace).unwrap_or(&x).to_str()
                })
                .unwrap_or("")
        };
        let loc = locs.chars().rev().collect::<Vec<_>>().into_iter();
        let q = if left < charc(&locs) as i32 {
            locs.chars()
                .take(left as _)
                .chain(['…'])
                .collect::<Vec<_>>()
                .into_iter()
                .rev()
                .collect::<Vec<_>>()
                .into_iter()
        } else {
            loc
        };

        i.iter_mut()
            .rev()
            .zip(q.map(|x| {
                Style { bg, fg: color_("#979794"), ..default() }.basic(x)
            }))
            .for_each(|(a, b)| *a = b);

        // i.iter_mut()
        //     .rev()
        //     .zip(loc.map(|x| {
        //         Style { bg, fg: color_("#979794"), ..default() }
        //             .basic(x)
        //     }))
        //     .for_each(|(a, b)| *a = b);
        i.iter_mut()
            .zip(
                x.label
                    .chars()
                    .chain([' '])
                    .map(|x| ds.basic(x))
                    .zip(0..)
                    .chain(
                        qualifier
                            .map(|x| {
                                Style {
                                    bg,
                                    fg: color_("#858685"),
                                    ..default()
                                }
                                .basic(x)
                            })
                            .zip(repeat(u32::MAX)),
                    ),
            )
            .for_each(|(a, (b, i))| {
                *a = b;
                if indices.contains(&i) {
                    a.style |= (Style::BOLD, color_("#ffcc66"));
                }
            });
        to.extend(b);
    }
}
pub type Runnables = GenericMenu<Runb>;
impl<'a> Key<'a> for &'a Runnable {
    fn key(&self) -> impl Into<std::borrow::Cow<'a, str>> {
        &self.label
    }
}