feat: Add media thumbnail retrieval functionality and update MediaResponse structure

libertas_api/src/handlers/media_handlers.rs

@@ -17,7 +17,7 @@ use crate::{
     error::ApiError,
     extractors::query_options::ApiListMediaOptions,
     middleware::auth::{OptionalUserId, UserId},
-    schema::{MediaDetailsResponse, MediaMetadataResponse, MediaResponse},
+    schema::{MediaDetailsResponse, MediaResponse},
     state::AppState,
 };
 
@@ -26,6 +26,7 @@ pub fn media_routes(max_upload_size: usize) -> Router<AppState> {
         .route("/", post(upload_media).get(list_user_media))
         .route("/{id}", get(get_media_details).delete(delete_media))
         .route("/{id}/file", get(get_media_file))
+        .route("/{id}/thumbnail", get(get_media_thumbnail))
         .layer(DefaultBodyLimit::max(max_upload_size))
 }
 
@@ -90,26 +91,37 @@ async fn get_media_file(
         })
 }
 
+async fn get_media_thumbnail(
+    State(state): State<AppState>,
+    OptionalUserId(user_id): OptionalUserId,
+    Path(media_id): Path<Uuid>,
+    request: Request,
+) -> Result<impl IntoResponse, ApiError> {
+    let thumbnail_path = state
+        .media_service
+        .get_media_thumbnail_path(media_id, user_id)
+        .await?;
+
+    let full_path = PathBuf::from(&thumbnail_path);
+
+    ServeFile::new(full_path)
+        .oneshot(request)
+        .await
+        .map_err(|e| {
+            ApiError::from(CoreError::Io(io::Error::new(
+                io::ErrorKind::NotFound,
+                format!("File not found: {}", e),
+            )))
+        })
+}
+
 async fn get_media_details(
     State(state): State<AppState>,
     OptionalUserId(user_id): OptionalUserId,
     Path(id): Path<Uuid>,
 ) -> Result<Json<MediaDetailsResponse>, ApiError> {
     let bundle = state.media_service.get_media_details(id, user_id).await?;
-    let response = MediaDetailsResponse {
-        id: bundle.media.id,
-        storage_path: bundle.media.storage_path,
-        original_filename: bundle.media.original_filename,
-        mime_type: bundle.media.mime_type,
-        hash: bundle.media.hash,
-        thumbnail_path: bundle.media.thumbnail_path,
-        metadata: bundle
-            .metadata
-            .into_iter()
-            .map(MediaMetadataResponse::from)
-            .collect(),
-    };
-
+    let response = MediaDetailsResponse::from(bundle);
     Ok(Json(response))
 }