refactor: organize Rust modules and simplify deployment README

src/http/mikan.rs

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0-only
+use super::State;
+use crate::error::Result;
+use actix_web::{web, HttpResponse};
+
+#[derive(serde::Deserialize)]
+pub(super) struct SearchQuery {
+    q: String,
+}
+
+pub(super) async fn mikan_search(
+    state: State,
+    query: web::Query<SearchQuery>,
+) -> Result<HttpResponse> {
+    Ok(HttpResponse::Ok().json(state.mikan.search(&query.q).await?))
+}
+
+pub(super) async fn mikan_series(state: State, id: web::Path<String>) -> Result<HttpResponse> {
+    Ok(HttpResponse::Ok().json(state.mikan.series(&id).await?))
+}
+
+pub(super) async fn mikan_cover(state: State, id: web::Path<String>) -> Result<HttpResponse> {
+    let (mime, bytes) = state.mikan.cover(&id).await?;
+    Ok(HttpResponse::Ok()
+        .content_type(mime)
+        .insert_header(("X-Content-Type-Options", "nosniff"))
+        .insert_header(("Cache-Control", "private, max-age=60"))
+        .body(bytes))
+}
+
+#[derive(serde::Deserialize)]
+#[serde(deny_unknown_fields)]
+pub(super) struct ResolveInput {
+    url: String,
+}
+
+pub(super) async fn mikan_resolve(
+    state: State,
+    body: web::Json<ResolveInput>,
+) -> Result<HttpResponse> {
+    Ok(HttpResponse::Ok().json(state.mikan.resolve(&body.url).await?))
+}