artifacts: bandcamp: implement synchronization for artists

src/artifacts/bandcamp.rs

@@ -2,7 +2,7 @@ use bandcamp::SearchResultItem;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 
-use crate::artifacts::{Album, Artifact, ArtifactBuilder, Artist, SourceID, Track, tools::{DataSource, ToolDescription}};
+use crate::artifacts::{Album, Artifact, ArtifactBuilder, Artist, Contents, SourceID, Track, tools::{DataSource, ToolDescription}};
 
 #[derive(Debug, Serialize, Deserialize, Clone, JsonSchema)]
 pub struct BandcampQueryArgs {
@@ -34,8 +34,12 @@ impl DataSource for BandcampSource {
     type Args = BandcampQueryArgs;
     type Error = bandcamp::Error;
     
-    async fn synchronize(&self, _artifact: &mut Artifact) -> Result<Vec<Artifact>, Self::Error> {
-        todo!()
+    async fn synchronize(&self, artifact: &mut Artifact) -> Result<Vec<Artifact>, Self::Error> {
+        if let Contents::Artist(artist) = &artifact.contents {
+            Ok(self.query(&BandcampQueryArgs { query: artist.name.clone() }).await.unwrap_or_default())
+        } else {
+            Ok(vec![])
+        }
     }
     
     async fn query(&self, args: &Self::Args) -> Result<Vec<Artifact>, Self::Error> {