From 2b6f86d4e9c19e1b7788ea8900c930828cd0055d Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Mon, 23 Oct 2023 20:30:43 -0400
Subject: [PATCH] Switch to rendering blog post pages instead of blog posts.

---
 src/blog_post/convert.rs        | 10 +++++++---
 src/blog_post/definition.rs     |  2 +-
 src/blog_post/mod.rs            |  2 +-
 src/blog_post/page.rs           | 11 +++++++++--
 src/blog_post/render_context.rs | 12 ++++++------
 src/command/build/render.rs     | 22 ++++++++++++++++++----
 6 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/src/blog_post/convert.rs b/src/blog_post/convert.rs
index a2de168..8c17621 100644
--- a/src/blog_post/convert.rs
+++ b/src/blog_post/convert.rs
@@ -1,6 +1,10 @@
-use super::render_context::RenderBlogPost;
+use super::render_context::RenderBlogPostPage;
 use super::BlogPost;
+use super::BlogPostPage;
 
-pub(crate) fn convert_blog_post_to_render_context(post: &BlogPost) -> RenderBlogPost {
-    RenderBlogPost::new(post.id.clone())
+pub(crate) fn convert_blog_post_page_to_render_context(
+    _post: &BlogPost,
+    page: &BlogPostPage,
+) -> RenderBlogPostPage {
+    RenderBlogPostPage::new(page.title.clone())
 }
diff --git a/src/blog_post/definition.rs b/src/blog_post/definition.rs
index 7589986..277c439 100644
--- a/src/blog_post/definition.rs
+++ b/src/blog_post/definition.rs
@@ -11,7 +11,7 @@ use super::BlogPostPage;
 #[derive(Debug)]
 pub(crate) struct BlogPost {
     pub(crate) id: String,
-    pages: Vec<BlogPostPage>,
+    pub(crate) pages: Vec<BlogPostPage>,
 }
 
 impl BlogPost {
diff --git a/src/blog_post/mod.rs b/src/blog_post/mod.rs
index 9ec4e23..bd4e010 100644
--- a/src/blog_post/mod.rs
+++ b/src/blog_post/mod.rs
@@ -2,6 +2,6 @@ mod convert;
 mod definition;
 mod page;
 mod render_context;
-pub(crate) use convert::convert_blog_post_to_render_context;
+pub(crate) use convert::convert_blog_post_page_to_render_context;
 pub(crate) use definition::BlogPost;
 pub(crate) use page::BlogPostPage;
diff --git a/src/blog_post/page.rs b/src/blog_post/page.rs
index a0d94b7..8c56412 100644
--- a/src/blog_post/page.rs
+++ b/src/blog_post/page.rs
@@ -5,9 +5,9 @@ use crate::error::CustomError;
 #[derive(Debug)]
 pub(crate) struct BlogPostPage {
     /// Relative path from the root of the blog post.
-    path: PathBuf,
+    pub(crate) path: PathBuf,
 
-    title: Option<String>,
+    pub(crate) title: Option<String>,
 }
 
 impl BlogPostPage {
@@ -21,6 +21,13 @@ impl BlogPostPage {
             title: get_title(&document),
         })
     }
+
+    /// Get the output path relative to the post directory.
+    pub(crate) fn get_output_path(&self) -> PathBuf {
+        let mut ret = self.path.clone();
+        ret.set_extension("html");
+        ret
+    }
 }
 
 fn get_title(document: &organic::types::Document<'_>) -> Option<String> {
diff --git a/src/blog_post/render_context.rs b/src/blog_post/render_context.rs
index 9163d90..fb56b61 100644
--- a/src/blog_post/render_context.rs
+++ b/src/blog_post/render_context.rs
@@ -2,13 +2,13 @@ use serde::Serialize;
 
 #[derive(Debug, Serialize)]
 #[serde(tag = "type")]
-#[serde(rename = "blog_post")]
-pub(crate) struct RenderBlogPost {
-    id: String,
+#[serde(rename = "blog_post_page")]
+pub(crate) struct RenderBlogPostPage {
+    title: Option<String>,
 }
 
-impl RenderBlogPost {
-    pub(crate) fn new(id: String) -> RenderBlogPost {
-        RenderBlogPost { id }
+impl RenderBlogPostPage {
+    pub(crate) fn new(title: Option<String>) -> RenderBlogPostPage {
+        RenderBlogPostPage { title }
     }
 }
diff --git a/src/command/build/render.rs b/src/command/build/render.rs
index 3df81cc..1ce1d82 100644
--- a/src/command/build/render.rs
+++ b/src/command/build/render.rs
@@ -4,7 +4,7 @@ use std::path::PathBuf;
 use include_dir::include_dir;
 use include_dir::Dir;
 
-use crate::blog_post::convert_blog_post_to_render_context;
+use crate::blog_post::convert_blog_post_page_to_render_context;
 use crate::blog_post::BlogPost;
 use crate::error::CustomError;
 use crate::render::DusterRenderer;
@@ -56,9 +56,23 @@ impl SiteRenderer {
         }
 
         for blog_post in &self.blog_posts {
-            let render_context = convert_blog_post_to_render_context(blog_post);
-            let rendered_output = renderer_integration.render(render_context)?;
-            println!("Rendered: {}", rendered_output);
+            for blog_post_page in &blog_post.pages {
+                let output_path = self
+                    .output_directory
+                    .join("posts")
+                    .join(&blog_post.id)
+                    .join(blog_post_page.get_output_path());
+                println!("Output path: {:?}", output_path);
+                let render_context =
+                    convert_blog_post_page_to_render_context(blog_post, blog_post_page);
+                let rendered_output = renderer_integration.render(render_context)?;
+                println!("Rendered: {}", rendered_output);
+                let parent_directory = output_path
+                    .parent()
+                    .ok_or("Output file should have a containing directory.")?;
+                tokio::fs::create_dir_all(parent_directory).await?;
+                tokio::fs::write(output_path, rendered_output).await?;
+            }
         }
 
         Ok(())