genericise articles

1 files changed, 30 insertions, 116 deletions

diff --git a/src/blog.rs b/src/blog.rs
index 22cee05..0e757d5 100644
--- a/src/blog.rs
+++ b/src/blog.rs
@@ -7,12 +7,13 @@ use tokio::{fs, io::AsyncReadExt};
 use chrono::{DateTime, Utc};
 
 use crate::{
+    article::Article,
     error::BlossomError,
     posts::{Post, PostType},
     Result,
 };
 
-static ARTICLES_DIR: &str = "./articles";
+static DIRECTORY: &str = "./articles";
 
 #[derive(Clone)]
 pub struct Blogpost {
@@ -32,6 +33,32 @@ pub struct BlogpostMetadata {
     tags: Vec<String>,
 }
 
+impl Article for Blogpost {
+    type Metadata = BlogpostMetadata;
+
+    type Article = Blogpost;
+
+    fn directory() -> &'static str {
+        DIRECTORY
+    }
+
+    fn new(file_name: String, metadata: Self::Metadata, content: String) -> Result<Self::Article> {
+        let updated_at = if let Some(updated_at) = metadata.updated_at {
+            Some(updated_at.parse::<DateTime<Utc>>()?)
+        } else {
+            None
+        };
+        Ok(Blogpost {
+            file_name,
+            title: metadata.title,
+            published_at: metadata.published_at.parse::<DateTime<Utc>>()?,
+            updated_at,
+            tags: metadata.tags,
+            content,
+        })
+    }
+}
+
 impl Post for Blogpost {
     fn id(&self) -> &str {
         &self.file_name
@@ -45,12 +72,8 @@ impl Post for Blogpost {
         &self.published_at
     }
 
-    fn updated_at(&self) -> &DateTime<Utc> {
-        if let Some(updated_at) = &self.updated_at {
-            updated_at
-        } else {
-            &self.published_at
-        }
+    fn updated_at(&self) -> Option<&DateTime<Utc>> {
+        self.updated_at.as_ref()
     }
 
     fn tags(&self) -> &Vec<String> {
@@ -74,113 +97,4 @@ impl Blogpost {
     pub fn file_name(&self) -> &str {
         &self.file_name
     }
-
-    async fn from_path(path: impl AsRef<Path>) -> Result<Self> {
-        let mut file = fs::File::open(&path).await?;
-        let mut buf = String::new();
-        file.read_to_string(&mut buf).await?;
-        let parse_options = ParseOptions {
-            constructs: Constructs {
-                frontmatter: true,
-                ..Constructs::gfm()
-            },
-            ..ParseOptions::default()
-        };
-        let metadata: BlogpostMetadata = markdown::to_mdast(&buf, &parse_options)
-            .unwrap()
-            .try_into()?;
-        let file_name = path
-            .as_ref()
-            .file_name()
-            .ok_or(BlossomError::NotAFile)?
-            .to_string_lossy();
-        let file_name = file_name[..file_name.len() - 3].to_owned();
-        let updated_at = if let Some(updated_at) = metadata.updated_at {
-            Some(updated_at.parse::<DateTime<Utc>>()?)
-        } else {
-            None
-        };
-        // TODO: cache render only when needed
-        let options = Options {
-            parse: parse_options,
-            compile: CompileOptions {
-                gfm_task_list_item_checkable: true,
-                allow_dangerous_html: true,
-                ..CompileOptions::default()
-            },
-        };
-        let content = markdown::to_html_with_options(&buf, &options).unwrap();
-        Ok(Self {
-            file_name,
-            title: metadata.title,
-            published_at: metadata.published_at.parse::<DateTime<Utc>>()?,
-            updated_at,
-            tags: metadata.tags,
-            content,
-        })
-    }
-
-    // async fn render(&mut self) -> Result<String> {
-    //     let path = Path::new(ARTICLES_DIR)
-    //         .join(&self.file_name)
-    //         .with_extension("md");
-    //     // TODO: remove unwraps when file read failure
-    //     let mut file = fs::File::open(&path).await.unwrap();
-    //     let mut buf = String::new();
-    //     file.read_to_string(&mut buf).await.unwrap();
-    //     let parse_options = ParseOptions {
-    //         constructs: Constructs {
-    //             frontmatter: true,
-    //             ..Constructs::gfm()
-    //         },
-    //         ..ParseOptions::default()
-    //     };
-    //     let options = Options {
-    //         parse: parse_options,
-    //         compile: CompileOptions {
-    //             gfm_task_list_item_checkable: true,
-    //             allow_dangerous_html: true,
-    //             ..CompileOptions::default()
-    //         },
-    //     };
-    //     let content = markdown::to_html_with_options(&buf, &options).unwrap();
-    //     Ok(content)
-    // }
-}
-
-impl TryFrom<Node> for BlogpostMetadata {
-    type Error = BlossomError;
-
-    fn try_from(tree: Node) -> std::prelude::v1::Result<Self, Self::Error> {
-        let children = tree.children();
-        if let Some(children) = children {
-            if let Some(toml) = children.into_iter().find_map(|el| match el {
-                Node::Toml(toml) => Some(&toml.value),
-                _ => None,
-            }) {
-                return Ok(toml::from_str(toml)?);
-            };
-        }
-        Err(BlossomError::NoMetadata)
-    }
-}
-
-pub async fn get_blogposts() -> Result<Vec<Blogpost>> {
-    let mut blogposts: Vec<Blogpost> = Vec::new();
-    let mut articles_dir = fs::read_dir(ARTICLES_DIR).await?;
-    while let Some(entry) = articles_dir.next_entry().await? {
-        let blogpost = Blogpost::from_path(entry.path()).await?;
-        blogposts.push(blogpost);
-    }
-    blogposts.sort_by_key(|post| post.published_at);
-    blogposts.reverse();
-    Ok(blogposts)
-}
-
-pub async fn get_blogpost(file_name: &str) -> Result<Blogpost> {
-    let path = Path::new(ARTICLES_DIR)
-        .join(Path::new(file_name))
-        .with_extension("md");
-    println!("{:?}", path);
-    Blogpost::from_path(path).await
 }