diff --git a/src/library/mod.rs b/src/library/mod.rs
index ead4cb7..b2e1615 100644
--- a/src/library/mod.rs
+++ b/src/library/mod.rs
@@ -166,6 +166,127 @@ impl Libary {
         Track::get(track_id).await
     }
 
+    pub async fn reload_metadata(&self, track_id: &str) -> Result<(), ()> {
+        let mut track = Track::get(track_id).await.ok_or_else(|| ())?;
+        let path = &track.path;
+        log::info!("Rescanning metadata for {path}");
+
+        let metadata = metadata::get_metadata(path);
+
+        let mut update = json!({});
+
+        if let Some(meta) = &metadata {
+            if let Some(artist) = meta.artist() {
+                let artist_id = self.find_or_create_artist(artist).await;
+                update
+                    .as_object_mut()
+                    .unwrap()
+                    .insert("artist_id".into(), artist_id.into());
+            } else {
+                log::warn!("{path} has no artist");
+            }
+
+            if let Some(album) = meta.album() {
+                let album_id = self
+                    .find_or_create_album(
+                        album,
+                        update
+                            .as_object()
+                            .unwrap()
+                            .get("artist_id")
+                            .map(|x| x.as_str().unwrap()),
+                    )
+                    .await;
+                update
+                    .as_object_mut()
+                    .unwrap()
+                    .insert("album_id".into(), album_id.into());
+            } else {
+                log::warn!("{path} has no album and will be treated as single");
+            }
+
+            if let Some(title) = meta.title() {
+                update
+                    .as_object_mut()
+                    .unwrap()
+                    .insert("title".into(), title.into());
+            }
+        }
+
+        if let Some(metadata) = metadata {
+            update
+                .as_object_mut()
+                .unwrap()
+                .insert("meta".into(), metadata.0);
+        }
+
+        // if no title in metadata use file name
+        if update.as_object().unwrap().get("title").is_none() {
+            update.as_object_mut().unwrap().insert(
+                "title".into(),
+                std::path::Path::new(&path)
+                    .file_stem()
+                    .unwrap()
+                    .to_str()
+                    .unwrap()
+                    .into(),
+            );
+        }
+
+        track.update(&update).await.unwrap();
+
+        Ok(())
+    }
+
+    pub async fn clean_lost_files(&self) {
+        // todo : clean
+        // tracks
+        for track in Track::find(doc! {}, None).await.unwrap() {
+            if !std::path::Path::new(&track.path).exists() {
+                log::info!("Cleaning lost {}", track.path);
+                track.delete().await.unwrap();
+            }
+        }
+        // albums
+        for album in Album::find_partial(doc! {}, json!({"title": 1}), None)
+            .await
+            .unwrap()
+        {
+            if Track::find_partial(doc! { "album_id": album.reference() }, json!({}), None)
+                .await
+                .unwrap()
+                .is_empty()
+            {
+                log::info!(
+                    "Cleaning album {} with no tracks",
+                    album.title.as_ref().unwrap()
+                );
+                Album::remove(album.id()).await.unwrap();
+            }
+        }
+        // artists
+        for artist in Artist::find_partial(doc! {}, json!({"name": 1}), None)
+            .await
+            .unwrap()
+        {
+            if Track::find_partial(doc! { "artist_id": artist.reference()}, json!({}), None)
+                .await
+                .unwrap()
+                .is_empty()
+                && Album::find_partial(doc! { "artist_id": artist.reference()}, json!({}), None)
+                    .await
+                    .unwrap()
+                    .is_empty()
+            {
+                log::info!(
+                    "Cleaning artist {} with no tracks or albums",
+                    artist.name.as_ref().unwrap()
+                );
+                Artist::remove(artist.id()).await.unwrap();
+            }
+        }
+    }
+
     pub async fn rescan(&self, cache: &RouteCache) {
         cache.invalidate("albums", "latest").await;
 
diff --git a/src/main.rs b/src/main.rs
index c771f0e..6b27231 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,6 +54,7 @@ async fn rocket() -> _ {
                 route::album::latest_albums_route,
                 route::track::track_route,
                 route::track::track_audio_route,
+                route::track::track_reload_meta_route,
                 route::album::album_cover_route,
                 route::user::login_route,
                 route::user::passwd_route,
@@ -64,7 +65,8 @@ async fn rocket() -> _ {
                 route::playlist::playlist_route,
                 route::playlist::playlist_add_route,
                 route::playlist::playlist_edit_route,
-                route::playlist::playlist_tracks_route
+                route::playlist::playlist_tracks_route,
+                route::admin::clean_library
             ],
         )
         .manage(lib)
diff --git a/src/route/admin.rs b/src/route/admin.rs
new file mode 100644
index 0000000..7e3965d
--- /dev/null
+++ b/src/route/admin.rs
@@ -0,0 +1,16 @@
+use super::api_error;
+use super::FallibleApiResponse;
+use mongodb::bson::doc;
+use rocket::{get, State};
+use serde_json::json;
+
+use crate::check_admin;
+use crate::library::user::User;
+use crate::library::Libary;
+
+#[get("/library/clean")]
+pub async fn clean_library(lib: &State<Libary>, u: User) -> FallibleApiResponse {
+    check_admin!(u);
+    lib.clean_lost_files().await;
+    Ok(json!({"ok": 1}))
+}
diff --git a/src/route/mod.rs b/src/route/mod.rs
index 2602d6c..91edffd 100644
--- a/src/route/mod.rs
+++ b/src/route/mod.rs
@@ -5,6 +5,7 @@ use rocket::{
 };
 use serde_json::json;
 
+pub mod admin;
 pub mod album;
 pub mod artist;
 pub mod playlist;
diff --git a/src/route/track.rs b/src/route/track.rs
index ede01af..7346fb0 100644
--- a/src/route/track.rs
+++ b/src/route/track.rs
@@ -1,10 +1,13 @@
 use super::api_error;
 use super::FallibleApiResponse;
 use super::ToAPI;
+use crate::library::user::User;
 use fs::NamedFile;
 use mongodb::bson::doc;
 use rocket::{fs, get, State};
+use serde_json::json;
 
+use crate::check_admin;
 use crate::library::Libary;
 
 #[get("/track/<track_id>")]
@@ -17,6 +20,19 @@ pub async fn track_route(track_id: &str, lib: &State<Libary>) -> FallibleApiResp
         .await)
 }
 
+#[get("/track/<track_id>/reload")]
+pub async fn track_reload_meta_route(
+    track_id: &str,
+    lib: &State<Libary>,
+    u: User,
+) -> FallibleApiResponse {
+    check_admin!(u);
+    lib.reload_metadata(track_id)
+        .await
+        .map_err(|_| api_error("Error reloading metadata"))?;
+    Ok(json!({"ok": 1}))
+}
+
 #[get("/track/<track_id>/audio")]
 pub async fn track_audio_route(track_id: &str, lib: &State<Libary>) -> Option<NamedFile> {
     let track = lib.get_track_by_id(track_id).await?;
diff --git a/src/route/user.rs b/src/route/user.rs
index cddbe07..bffcaa0 100644
--- a/src/route/user.rs
+++ b/src/route/user.rs
@@ -16,6 +16,7 @@ use serde_json::json;
 use super::api_error;
 use super::FallibleApiResponse;
 
+#[macro_export]
 macro_rules! check_admin {
     ($u:ident) => {
         if !$u.is_admin() {