From 540f4f593382b521dcc0dcf6dc1a9afb2328d866 Mon Sep 17 00:00:00 2001
From: Jason Wen <haibin.wen3@gmail.com>
Date: Tue, 5 May 2026 20:27:11 -0400
Subject: [PATCH] Platform List: dynamically migrate CarPlatformBundle (#1828)

---
 sunnypilot/system/params_migration.py | 35 +++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/sunnypilot/system/params_migration.py b/sunnypilot/system/params_migration.py
index 5e524de06e..5d5c75ffeb 100644
--- a/sunnypilot/system/params_migration.py
+++ b/sunnypilot/system/params_migration.py
@@ -4,7 +4,10 @@ Copyright (c) 2021-, Haibin Wen, sunnypilot, and a number of other contributors.
 This file is part of sunnypilot and is licensed under the MIT License.
 See the LICENSE.md file in the root directory for more details.
 """
+import json
+
 from openpilot.common.swaglog import cloudlog
+from openpilot.sunnypilot.selfdrive.car.sync_car_list_param import CAR_LIST_JSON_OUT
 
 ONROAD_BRIGHTNESS_MIGRATION_VERSION: str = "1.0"
 ONROAD_BRIGHTNESS_TIMER_MIGRATION_VERSION: str = "1.0"
@@ -14,6 +17,36 @@ ONROAD_BRIGHTNESS_TIMER_VALUES = {0: 3, 1: 5, 2: 7, 3: 10, 4: 15, 5: 30, **{i: (
 VALID_TIMER_VALUES = set(ONROAD_BRIGHTNESS_TIMER_VALUES.values())
 
 
+def _migrate_car_platform_bundle(_params):
+  bundle = _params.get("CarPlatformBundle")
+  if bundle is None:
+    return
+
+  old_platform = bundle.get("platform")
+  if not old_platform:
+    return
+
+  from opendbc.car.fingerprints import MIGRATION  # lazy: avoids heavy import at module level
+  if old_platform not in MIGRATION:
+    return
+
+  new_platform = str(MIGRATION[old_platform])
+
+  with open(CAR_LIST_JSON_OUT) as f:
+    car_list = json.load(f)
+
+  candidates = [(k, v) for k, v in car_list.items() if v.get("platform") == new_platform]
+  if candidates:
+    old_model = bundle.get("model")
+    key, data = next(((k, v) for k, v in candidates if v.get("model") == old_model), candidates[0])
+    bundle = {**data, "name": key}
+  else:
+    bundle["platform"] = new_platform
+
+  _params.put("CarPlatformBundle", bundle)
+  cloudlog.info(f"params_migration: CarPlatformBundle migrated {old_platform!r} -> {new_platform!r}")
+
+
 def run_migration(_params):
   # migrate OnroadScreenOffBrightness
   if _params.get("OnroadScreenOffBrightnessMigrated") != ONROAD_BRIGHTNESS_MIGRATION_VERSION:
@@ -45,3 +78,5 @@ def run_migration(_params):
       cloudlog.info(log_str + f" Setting OnroadScreenOffTimerMigrated to {ONROAD_BRIGHTNESS_TIMER_MIGRATION_VERSION}")
     except Exception as e:
       cloudlog.exception(f"Error migrating OnroadScreenOffTimer: {e}")
+
+  _migrate_car_platform_bundle(_params)