feat: staging-dir + clean import_album library helpers

worker/tests/test_staging.py

@@ -0,0 +1,49 @@
+import os
+
+from lyra_worker.library import clear_staging_root, import_album, staging_dir
+
+
+def test_staging_dir_path():
+    assert staging_dir("/music", "job-1") == "/music/.staging/job-1"
+
+
+def test_import_album_moves_audio_and_cover_into_fresh_final(tmp_path):
+    staging = tmp_path / "stg"
+    (staging / "sub").mkdir(parents=True)
+    (staging / "01 A.flac").write_bytes(b"a")
+    (staging / "02 B.flac").write_bytes(b"b")
+    (staging / "sub" / "cover.jpg").write_bytes(b"img")  # streamrip leaves art in a subfolder
+    (staging / "notes.txt").write_text("junk")
+    final = tmp_path / "lib" / "Artist" / "Album"
+
+    result = import_album(str(staging), str(final))
+
+    assert result == str(final)
+    assert sorted(os.listdir(final)) == ["01 A.flac", "02 B.flac", "cover.jpg"]  # audio + cover only
+
+
+def test_import_album_replaces_existing_final(tmp_path):
+    final = tmp_path / "lib" / "Artist" / "Album"
+    final.mkdir(parents=True)
+    (final / "old.flac").write_bytes(b"old")  # a stale lower-quality copy
+    staging = tmp_path / "stg"
+    staging.mkdir()
+    (staging / "01 New.flac").write_bytes(b"new")
+
+    import_album(str(staging), str(final))
+
+    assert sorted(os.listdir(final)) == ["01 New.flac"]  # old copy fully replaced
+
+
+def test_import_album_tolerates_missing_staging(tmp_path):
+    final = tmp_path / "Artist" / "Album"
+    import_album(str(tmp_path / "does-not-exist"), str(final))
+    assert os.path.isdir(final) and os.listdir(final) == []
+
+
+def test_clear_staging_root_removes_staging(tmp_path):
+    stg = tmp_path / ".staging" / "j1"
+    stg.mkdir(parents=True)
+    (stg / "x").write_bytes(b"")
+    clear_staging_root(str(tmp_path))
+    assert not (tmp_path / ".staging").exists()