different method first draft

selfdrive/car/hyundai/values.py

@@ -1,10 +1,11 @@
 import re
+from collections import defaultdict
 from datetime import datetime
 from dateutil import rrule
-from collections import defaultdict
 from dataclasses import dataclass
 from enum import Enum, IntFlag
-from typing import DefaultDict, Dict, List, Optional, Set, Union
+import functools
+from typing import DefaultDict, Dict, List, Optional, Set, Tuple, Union
 
 from cereal import car
 from panda.python import uds
@@ -348,6 +349,29 @@ FINGERPRINTS = {
 }
 
 
+@functools.cache
+def parse_platform_code(fw_version: bytes) -> Tuple[Optional[bytes], Optional[bytes]]:
+  match = PLATFORM_CODE_PATTERN.search(fw_version)
+  code, date = None, None
+  if match is not None:
+    code, date = match.groups()
+  return code, date
+
+
+def hyundai_fuzzy(fw_versions_dict) -> Set[str]:
+  all_platform_codes = defaultdict(set)
+  for candidate, fw_by_addr in FW_VERSIONS.items():
+    for addr, fws in fw_by_addr.items():
+      if addr[0] not in FW_QUERY_CONFIG.platform_code_ecus:
+        continue
+
+      for fw in fws:
+        code, date = parse_platform_code(fw)
+        if code is not None:
+          all_platform_codes[(addr[1], addr[2], code)].add(candidate)
+
+
+
 def get_platform_codes(fw_versions: List[bytes]) -> Set[bytes]:
   codes: DefaultDict[bytes, Set[bytes]] = defaultdict(set)
   for fw in fw_versions: