code refactor

Reviewed-on: #26

crates/adapters/http-axum/src/html/rss.rs

@@ -0,0 +1,70 @@
+use crate::{errors::ApiError, state::AppState};
+use application::{diary::get_diary, diary::get_user_feed, diary::queries::GetDiaryQuery};
+use axum::{
+    extract::{Path, State},
+    http::header,
+    response::IntoResponse,
+};
+use domain::{models::ReviewSortBy, ports::FeedChannel};
+use uuid::Uuid;
+
+const RSS_FEED_LIMIT: u32 = 50;
+
+pub async fn get_feed(State(state): State<AppState>) -> Result<impl IntoResponse, ApiError> {
+    let query = GetDiaryQuery {
+        limit: Some(RSS_FEED_LIMIT),
+        offset: Some(0),
+        sort_by: Some(ReviewSortBy::Descending),
+        movie_id: None,
+        user_id: None,
+    };
+    let page = get_diary::execute(&state.app_ctx.deps.diary.get_diary, query).await?;
+    let xml = state
+        .rss_renderer
+        .render_feed(
+            &page.items,
+            &FeedChannel {
+                title: "Movie Diary",
+                link_path: "/",
+                self_path: "/feed.rss",
+            },
+        )
+        .map_err(ApiError)?;
+    Ok((
+        [(header::CONTENT_TYPE, "application/xml; charset=utf-8")],
+        xml,
+    ))
+}
+
+pub async fn get_user_feed(
+    State(state): State<AppState>,
+    Path(user_id): Path<Uuid>,
+) -> Result<impl IntoResponse, ApiError> {
+    let feed = get_user_feed::execute(
+        &state.app_ctx.deps.diary.get_user_feed,
+        user_id,
+        RSS_FEED_LIMIT,
+    )
+    .await?;
+
+    let title = format!("{}'s Movie Diary", feed.author.display_name);
+    let link_path = format!("/users/{user_id}");
+    let self_path = format!("/users/{user_id}/feed.rss");
+
+    let xml = state
+        .rss_renderer
+        .render_feed(
+            &feed.entries,
+            &FeedChannel {
+                title: &title,
+                link_path: &link_path,
+                self_path: &self_path,
+            },
+        )
+        .map_err(ApiError)?;
+
+    Ok((
+        [(header::CONTENT_TYPE, "application/xml; charset=utf-8")],
+        xml,
+    ))
+}