Add read-only database V2 parser

serato_doctor/health.py

@@ -1,5 +1,7 @@
+from collections import Counter
+
 from serato_doctor.duplicates import find_duplicate_groups
-from serato_doctor.matching import MatchingEngine
+from serato_doctor.matching import MatchingEngine, normalize
 from serato_doctor.models.crate import CrateKind
 from serato_doctor.models.duplicate import DuplicateKind
 from serato_doctor.models.health import HealthReport
@@ -44,6 +46,13 @@ def analyze_health(library: Library) -> HealthReport:
         bool(matcher.candidates_for(result.reference)) for result in missing
     )
 
+    database_tracks = library.database.tracks if library.database else ()
+    database_names = {normalize(track.filename) for track in database_tracks}
+    library_names = {normalize(track.filename) for track in library.tracks}
+    database_path_counts = Counter(
+        normalize(str(track.path)) for track in database_tracks
+    )
+
     return HealthReport(
         score=score,
         total_references=len(library.references),
@@ -82,4 +91,18 @@ def analyze_health(library: Library) -> HealthReport:
             for crate in library.crates
             if crate.kind is CrateKind.SMART
         ),
+        database_present=library.database is not None,
+        database_entries=len(database_tracks),
+        database_library_matches=sum(
+            normalize(track.filename) in library_names for track in database_tracks
+        ),
+        database_unmatched_entries=sum(
+            normalize(track.filename) not in library_names for track in database_tracks
+        ),
+        tracks_missing_from_database=sum(
+            normalize(track.filename) not in database_names for track in library.tracks
+        ),
+        duplicate_database_paths=sum(
+            count - 1 for count in database_path_counts.values() if count > 1
+        ),
     )