implement blog tag filtering

1 files changed, 28 insertions, 18 deletions

diff --git a/src/main.rs b/src/main.rs
index c08c2e1..40f546d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,7 @@ mod scrobbles;
 mod skweets;
 
 use std::borrow::Cow;
+use std::collections::HashSet;
 
 use rocket::fs::{relative, FileServer};
 use rocket::http::Status;
@@ -47,24 +48,6 @@ async fn home(clients: &State<Clients>) -> Template {
     )
 }
 
-#[get("/blog")]
-async fn blog() -> Template {
-    let mut blogposts = posts::get_blogposts().await.unwrap_or_default();
-    let tags = posts::get_tags(&blogposts);
-    for blogpost in &mut blogposts {
-        blogpost.render().await;
-    }
-    let reverse = "reverse".to_owned();
-    Template::render(
-        "blog",
-        context! {
-            reverse,
-            blogposts,
-            tags,
-        },
-    )
-}
-
 #[get("/blog/<blogpost>")]
 async fn blogpost(blogpost: &str) -> Result<Template> {
     let mut blogpost = posts::get_blogpost(blogpost).await?;
@@ -77,6 +60,33 @@ async fn blogpost(blogpost: &str) -> Result<Template> {
     ))
 }
 
+#[get("/blog?<filter>")]
+async fn blog(filter: Vec<String>) -> Result<Template> {
+    let mut blogposts = posts::get_blogposts().await?;
+    let tags: Vec<String> = posts::get_tags(&blogposts)
+        .into_iter()
+        .map(|tag| tag.to_owned())
+        .collect();
+    let mut filter_hashset: HashSet<String> = HashSet::new();
+    if !filter.is_empty() {
+        filter_hashset.extend(filter.into_iter());
+        blogposts = posts::filter_by_tags(blogposts, &filter_hashset);
+    }
+    for blogpost in &mut blogposts {
+        blogpost.render().await?;
+    }
+    let reverse = true;
+    Ok(Template::render(
+        "blog",
+        context! {
+            reverse,
+            tags,
+            filter_hashset,
+            blogposts,
+        },
+    ))
+}
+
 #[get("/contact")]
 async fn contact() -> Template {
     Template::render("contact", context! {})