app: add sidecar sync commands (export, detect, import, resolve, full export/import)

crates/application/tests/sidecar/commands/full_import.rs

@@ -0,0 +1,65 @@
+use std::sync::Arc;
+use application::sidecar::{FullImportCommand, FullImportHandler};
+use application::testing::{
+    InMemoryAssetRepository, InMemoryAssetMetadataRepository,
+    InMemorySidecarRepository, InMemorySidecarWriter,
+};
+use domain::catalog::entities::{Asset, AssetType, MetadataSource, SourceReference};
+use domain::entities::SidecarRecord;
+use domain::ports::{AssetMetadataRepository, AssetRepository, SidecarRepository, SidecarWriterPort};
+use domain::value_objects::{Checksum, MetadataValue, StructuredData, SystemId};
+
+fn make_asset(owner: SystemId) -> Asset {
+    let source = SourceReference {
+        volume_id: SystemId::new(),
+        relative_path: "photos/img.jpg".into(),
+        checksum: Checksum::new("b".repeat(64)).unwrap(),
+    };
+    Asset::new(source, AssetType::Image, "image/jpeg", 2048, owner)
+}
+
+#[tokio::test]
+async fn imports_from_existing_sidecars() {
+    let asset_repo = Arc::new(InMemoryAssetRepository::new());
+    let meta_repo = Arc::new(InMemoryAssetMetadataRepository::new());
+    let sidecar_repo = Arc::new(InMemorySidecarRepository::new());
+    let writer = Arc::new(InMemorySidecarWriter::new());
+
+    let owner = SystemId::new();
+    let asset = make_asset(owner);
+    asset_repo.save(&asset).await.unwrap();
+
+    let path = format!("sidecars/{}.xmp", asset.asset_id);
+    let record = SidecarRecord::new(asset.asset_id, &path);
+    sidecar_repo.save(&record).await.unwrap();
+
+    let mut data = StructuredData::new();
+    data.insert("lens", MetadataValue::String("50mm".into()));
+    writer.write_sidecar(&data, &path).await.unwrap();
+
+    let handler = FullImportHandler::new(asset_repo, meta_repo.clone(), sidecar_repo, writer);
+    let count = handler.execute(FullImportCommand { owner_id: owner }).await.unwrap();
+
+    assert_eq!(count, 1);
+    let imported = meta_repo.find_by_asset_and_source(&asset.asset_id, MetadataSource::ExifExtracted).await.unwrap();
+    assert!(imported.is_some());
+    assert_eq!(imported.unwrap().data.get_string("lens"), Some("50mm"));
+}
+
+#[tokio::test]
+async fn skips_missing_sidecars() {
+    let asset_repo = Arc::new(InMemoryAssetRepository::new());
+    let meta_repo = Arc::new(InMemoryAssetMetadataRepository::new());
+    let sidecar_repo = Arc::new(InMemorySidecarRepository::new());
+    let writer = Arc::new(InMemorySidecarWriter::new());
+
+    let owner = SystemId::new();
+    let asset = make_asset(owner);
+    asset_repo.save(&asset).await.unwrap();
+    // No sidecar record, no sidecar file
+
+    let handler = FullImportHandler::new(asset_repo, meta_repo, sidecar_repo, writer);
+    let count = handler.execute(FullImportCommand { owner_id: owner }).await.unwrap();
+
+    assert_eq!(count, 0);
+}