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use crate::{article_metadata, file_history, get_articles, markdown::blocks_to_html, ArticleMeta};
use laby::{frag, html, iter, li, ul, Render};
use std::fs::read_to_string;

pub fn scaffold(title: String, body: impl Render) -> impl Render {
    html!(
        head!(
            link!(rel = "stylesheet", href = "./style.css"),
            title!(format!("{} - metamuffin's blog", title))
        ),
        body!(
            nav!(
                h2!("metamuffin's blog"),
                a!(href = "./index", "index"),
                " ",
                a!(href = "./feed.atom", "atom")
            ),
            article!(body),
            footer!(p!("written by metamuffin, licensed under CC-BY-ND-4.0"))
        )
    )
}

pub fn article(path: String) -> impl Render {
    scaffold(
        article_metadata(path.clone().into()).title,
        frag!(
            laby::raw!(blocks_to_html(markdown::tokenize(
                &read_to_string(&path).unwrap()
            ))),
            hr!(),
            p!("changes to this article (as recorded with git; visible on the git repo, that i will create soon)"),
            pre!(file_history(&path))
        ),
    )
}

pub fn index(root: &str) -> impl Render {
    scaffold(
        "index".to_string(),
        ul!(iter!({
            get_articles(&root).into_iter().map(
                |ArticleMeta {
                     canonical_name,
                     date,
                     title,
                     ..
                 }| {
                    li!(
                        date.to_string(),
                        ": ",
                        a!(href = format!("./{canonical_name}",), title)
                    )
                },
            )
        })),
    )
}