refactor: Implement PR feedback

src/aki_prj23_transparenzregister/utils/data_extraction/unternehmensregister/transform.py

@@ -377,19 +377,21 @@ def extract_date_from_string(value: str) -> str | None:
         str | None: Date in ISO format, None if not found
     """
     date_regex = [  # type: ignore
-        {"regex": r"\d{1,2}\.\d{1,2}\.(19|20)?\d{2}", "mapper": transform_date_to_iso},
-
-        {"regex": r"(20|19)\d{2}-\d{1,2}-\d{1,2}", "mapper": None},
-
+        {"regex": r"\d{1,2}\.\d{1,2}\.\d{4}", "mapper": transform_date_to_iso},
+        {"regex": r"\d{4}-\d{1,2}-\d{1,2}", "mapper": None},
     ]
+    results = []
     for regex in date_regex:
         result = re.findall(regex["regex"], value)  # type: ignore
         if len(result) == 1:
             relevant_data = result[0]
             if regex["mapper"] is not None:  # type: ignore
-                return regex["mapper"](relevant_data)  # type: ignore
-            return relevant_data
-    return None
+                results.append(regex["mapper"](relevant_data))  # type: ignore
+            else:
+                results.append(relevant_data)
+    if len(results) != 1:
+        return None
+    return results[0]
 
 
 def map_founding_date(data: dict) -> str | None:

tests/utils/data_extraction/unternehmensregister/transform_test.py

@@ -612,6 +612,10 @@ def test_map_business_purpose_no_result() -> None:
         ("Gesellschaftsvertrag vom 06.04.2016 Hallo Welt", "2016-04-06"),
         ("Str. des Tests vom 1999-04-05", "1999-04-05"),
         ("Once upon a midnight dreary while I pondered weak and weary...", None),
+        (
+            "This company was first founded in 2016-06-10 and then again on 1.5.2004",
+            None,
+        ),
     ],
 )
 def test_extract_date_from_string(value: str, expected_result: str) -> None: