fix(mover): rename the folder on relocate so audiobookshelf keeps the item and its cover

tests/test_import_flow.py

@@ -753,6 +753,8 @@ def test_relocate_after_fixing_the_series(client):
     # a cover dropped next to the audio must survive the move
     (Path(dest) / "cover.jpg").write_bytes(b"")
 
+    inode = Path(dest).stat().st_ino
+
     client.put(f"/api/requests/{req_id}", json={
         "library_id": lib_id, "title": "Philosopher's Stone",
         "series": "Harry Potter", "volume": 1,
@@ -761,6 +763,8 @@ def test_relocate_after_fixing_the_series(client):
     assert res["ok"] and res["moved"]
     new = root / "Harry Potter" / "Philosopher's Stone"
     assert Path(res["dest"]) == new
+    # a renamed folder, not a new one: Audiobookshelf keeps the item and its cover
+    assert new.stat().st_ino == inode
     assert sorted(p.name for p in new.iterdir()) == [
         "Philosopher's Stone - Part 01.mp3", "Philosopher's Stone - Part 02.mp3", "cover.jpg",
     ]
@@ -769,6 +773,45 @@ def test_relocate_after_fixing_the_series(client):
         "imported_path"] == str(new)
 
 
+
+def test_the_folder_series_replaces_the_requests_on_import(client):
+    """Hardcover counts "Tote Augen" as Will Trent 3, the German release as Georgia 1."""
+    root = client.tmp_path / "library" / "german"
+    lib_id = client.post("/api/libraries", json={
+        "name": "german", "media_type": "audiobook", "root_path": str(root),
+        "folder_template": "{Series}/{Volume} - {Title}", "file_template": "{Title}",
+    }).json()["id"]
+    req_id = client.post("/api/requests", json={
+        "library_id": lib_id, "title": "Tote Augen", "authors": "Karin Slaughter",
+        "series": "Will Trent", "volume": 3,
+    }).json()["id"]
+
+    def import_folder(name, **override):
+        src = client.downloads / name
+        src.mkdir()
+        (src / "01.mp3").write_bytes(b"")
+        return client.post("/api/import", json={"items": [{
+            "path": str(src), "is_dir": True, "files": [str(src / "01.mp3")],
+            "request_id": req_id, **override,
+        }]}).json()["results"][0]
+
+    # a failed import must not leave the folder's series behind
+    (root / "Georgia" / "01 - Tote Augen").mkdir(parents=True)
+    (root / "Georgia" / "01 - Tote Augen" / "Tote Augen.mp3").write_bytes(b"")
+    failed = import_folder("broken", series="Georgia", volume=1)
+    assert not failed["ok"]
+    req = client.get("/api/requests", params={"status": "missing"}).json()[0]
+    assert (req["series"], req["volume"]) == ("Will Trent", 3)
+    shutil.rmtree(root / "Georgia")
+
+    result = import_folder("Karin Slaughter - Georgia 01 - Tote Augen",
+                           series="Georgia", volume=1)
+    assert result["ok"], result
+    assert Path(result["dest"]).parent == root / "Georgia" / "01 - Tote Augen"
+    req = client.get("/api/requests", params={"status": "imported"}).json()[0]
+    assert (req["series"], req["volume"]) == ("Georgia", 1)
+
+
 def test_relocate_is_a_no_op_when_nothing_changed(client):
     root = client.tmp_path / "library" / "l"
     lib_id = client.post("/api/libraries", json={