Page meta from frontmatter

crates/service/service-webpage/src/page/mod.rs

@@ -12,19 +12,24 @@ use axum::{
 use chrono::{DateTime, Utc};
 use libservice::ServiceConnectInfo;
 use lru::LruCache;
-use maud::{Markup, Render, html};
+use maud::{Markup, PreEscaped, Render, html};
 use parking_lot::Mutex;
+use serde::Deserialize;
 use std::{collections::HashMap, num::NonZero, sync::Arc, time::Duration};
 use tracing::{debug, trace};
 
-use crate::components::{md::Markdown, misc::Backlinks};
+use crate::components::{
+	md::{FrontMatter, Markdown},
+	misc::Backlinks,
+};
 
-#[derive(Debug, Clone, Hash, PartialEq, Eq)]
+#[derive(Debug, Clone, Hash, PartialEq, Eq, Deserialize)]
 pub struct PageMetadata {
 	pub title: String,
 	pub author: Option<String>,
 	pub description: Option<String>,
 	pub image: Option<String>,
+	pub slug: Option<String>,
 }
 
 impl Default for PageMetadata {
@@ -34,6 +39,7 @@ impl Default for PageMetadata {
 			author: None,
 			description: None,
 			image: None,
+			slug: None,
 		}
 	}
 }
@@ -103,16 +109,37 @@ impl Page {
 		(self.generate_html)(self)
 	}
 
-	pub fn from_markdown(meta: PageMetadata, md: impl Into<String>) -> Self {
+	pub fn from_markdown(md: impl Into<String>, default_image: Option<String>) -> Self {
 		let md: String = md.into();
+		let md = Markdown::parse(&md);
+
+		let mut meta = md
+			.children
+			.get(0)
+			.map(|x| x.cast::<FrontMatter>())
+			.flatten()
+			.map(|x| serde_yaml::from_str::<PageMetadata>(&x.content))
+			.unwrap_or(Ok(Default::default()))
+			.unwrap_or(PageMetadata {
+				title: "Invalid frontmatter!".into(),
+				..Default::default()
+			});
+
+		if meta.image.is_none() {
+			meta.image = default_image
+		}
+
+		let html = PreEscaped(md.render());
 
-		// TODO: define metadata and backlinks in markdown
 		Page {
 			meta,
 			generate_html: Box::new(move |page| {
 				html! {
-					(Backlinks(&[("/", "home")], &page.meta.title))
-					(Markdown(&md))
+					@if let Some(slug) = &page.meta.slug {
+						(Backlinks(&[("/", "home")], slug))
+					}
+
+					(html)
 				}
 			}),