Create directory skeleton of albums not already processed

src/main.py

@@ -9,8 +9,45 @@ def get_args():
     return parser.parse_args()
 
 
-def main(input_dir: str, output_dir: str):
-    pass
+def skip_all_albums(path: Path):
+    for directory in path.iterdir():
+        if directory.is_dir():
+            if not skip_album(directory):
+                return False
+        else:
+            print(f"Warning, skipping non-dir '{directory}' found in '{path}'")
+    return True
+
+
+def skip_album(path: Path):
+    for file in path.iterdir():
+        if file.name == "DONE":
+            return True
+    return False
+
+
+def main(input_dir: Path, output_dir: Path):
+    for artist in input_dir.iterdir():
+        if artist.is_dir():
+            artist_out = Path(output_dir) / artist.name
+            if skip_all_albums(artist):
+                print(f"Skipping '{artist.parts[-1]}'")
+                continue
+            else:
+                artist_out.mkdir()
+                for album in artist.iterdir():
+                    if album.is_dir():
+                        album_out = artist_out / album.parts[-1]
+                        if skip_album(album):
+                            print(f"Skipping '{artist.parts[-1]} / {album.parts[-1]}'")
+                        else:
+                            album_out.mkdir()
+                    else:
+                        print(f"Warning, skipping non-dir '{album}' found in artist '{artist.parts[-1]}'")
+                        continue
+        else:
+            print(f"Warning, skipping non-dir '{artist}' found in root")
+            continue
 
 
 if __name__ == '__main__':