More gui

src/routes/home.rs

@@ -1,10 +1,50 @@
+use std::sync::LazyLock;
+
 use askama::Template;
 use askama_web::WebTemplate;
+use pulldown_cmark::{Event, Options, Parser, Tag, html};
+
+static README_HTML: LazyLock<String> = LazyLock::new(|| {
+    let events: Vec<_> = Parser::new_ext(
+        include_str!("../../README.md"),
+        Options::ENABLE_TABLES | Options::ENABLE_STRIKETHROUGH | Options::ENABLE_TASKLISTS,
+    )
+    .collect();
+    let anchored = events.iter().enumerate().map(|(index, event)| {
+        if let Event::Start(Tag::Heading(level, None, _)) = event {
+            let title: String = events[index + 1..]
+                .iter()
+                .take_while(|event| !matches!(event, Event::End(Tag::Heading(..))))
+                .filter_map(|event| match event {
+                    Event::Text(text) | Event::Code(text) => Some(text.as_ref()),
+                    _ => None,
+                })
+                .collect();
+            let slug: String = title
+                .to_lowercase()
+                .chars()
+                .filter(|character| {
+                    character.is_alphanumeric() || *character == '-' || character.is_whitespace()
+                })
+                .collect();
+            let slug = slug.split_whitespace().collect::<Vec<_>>().join("-");
+            return Event::Html(format!("<{level} id=\"{slug}\">").into());
+        }
+        event.clone()
+    });
+    let mut rendered = String::new();
+    html::push_html(&mut rendered, anchored);
+    rendered
+});
 
 #[derive(Template, WebTemplate)]
 #[template(path = "home.html")]
-pub struct HomePage;
+pub struct HomePage {
+    readme: &'static str,
+}
 
 pub async fn home_page() -> HomePage {
-    HomePage
+    HomePage {
+        readme: &README_HTML,
+    }
 }