Data File Mappings

generator/practice/generate.py

@@ -63,13 +63,18 @@ def generate_key_variants(source_path: Path, source_root: Path, output_dir: Path
 def generate_practice_scores(source_dir: Path, output_dir: Path) -> int:
   if not source_dir.exists():
     return 0
+  sources = sorted(source_dir.rglob('*.xml'))
+  destinations: dict[Path, Path] = {}
+  for path in sources:
+    parts = path.relative_to(source_dir).parts
+    if len(parts) != 3 or parts[0] not in ('chord', 'melody'):
+      raise ValueError(f'{path}: practice source must be stored as practice/<chord|melody>/<lesson_group>/<exercise>.xml')
+    destination = Path(parts[0]) / parts[1] / slugify(path.stem)
+    if destination in destinations:
+      raise ValueError(f'{path}: practice output path collides with {destinations[destination]}: {destination}')
+    destinations[destination] = path
   count = 0
-  chord_root = source_dir / "chord"
-  if chord_root.exists():
-    for path in sorted(chord_root.rglob("*.xml")):
-      count += generate_chord_practice(path, chord_root, output_dir)
-  melody_root = source_dir / "melody"
-  if melody_root.exists():
-    for path in sorted(melody_root.rglob("*.xml")):
-      count += generate_melody_practice(path, melody_root, output_dir)
+  for destination, path in destinations.items():
+    practice_type = destination.parts[0]
+    count += generate_key_variants(path, source_dir / practice_type, output_dir, practice_type)
   return count