Add artist search and discography to MetadataProvider

src/provider.rs

@@ -47,6 +47,27 @@ pub struct RecordingDetails {
     pub genres: Vec<String>,
 }
 
+/// An artist match from a search query.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ArtistSearchResult {
+    pub mbid: String,
+    pub name: String,
+    pub disambiguation: Option<String>,
+    pub country: Option<String>,
+    pub artist_type: Option<String>,
+    pub score: u8,
+}
+
+/// A release entry in an artist's discography.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DiscographyEntry {
+    pub mbid: String,
+    pub title: String,
+    pub date: Option<String>,
+    pub release_type: Option<String>,
+    pub track_count: Option<i32>,
+}
+
 /// Trait for metadata lookup backends. MusicBrainz is the default implementation;
 /// others (Last.fm, Discogs, etc.) can be added later.
 pub trait MetadataProvider: Send + Sync {
@@ -66,4 +87,16 @@ pub trait MetadataProvider: Send + Sync {
         &self,
         mbid: &str,
     ) -> impl std::future::Future<Output = TagResult<RecordingDetails>> + Send;
+
+    fn search_artist(
+        &self,
+        query: &str,
+        limit: u32,
+    ) -> impl std::future::Future<Output = TagResult<Vec<ArtistSearchResult>>> + Send;
+
+    fn get_artist_releases(
+        &self,
+        artist_mbid: &str,
+        limit: u32,
+    ) -> impl std::future::Future<Output = TagResult<Vec<DiscographyEntry>>> + Send;
 }