Reapply "sunnylink: enhanced param keys fetch with data type" (#1317)

Reapply "sunnylink: enhanced param keys fetch with data type" (#1316)"

This reverts commit 282a8b093d.

Co-authored-by: Jason Wen <haibin.wen3@gmail.com>

sunnypilot/sunnylink/athena/sunnylinkd.py

@@ -178,12 +178,29 @@ def getParamsAllKeys() -> list[str]:
   return keys
 
 
+@dispatcher.add_method
+def getParamsAllKeysV1() -> dict[str, str]:
+  available_keys: list[str] = [k.decode('utf-8') for k in Params().all_keys()]
+
+  params_dict: dict[str, list[dict[str, str | bool | int | None]]] = {"params": []}
+  for key in available_keys:
+    value = get_param_as_byte(key, get_default=True)
+    params_dict["params"].append({
+      "key": key,
+      "type": int(params.get_type(key).value),
+      "default_value": base64.b64encode(value).decode('utf-8') if value else None,
+    })
+
+  return {"keys": json.dumps(params_dict.get("params", []))}
+
+
 @dispatcher.add_method
 def getParams(params_keys: list[str], compression: bool = False) -> str | dict[str, str]:
   params = Params()
+  available_keys: list[str] = [k.decode('utf-8') for k in Params().all_keys()]
 
   try:
-    param_keys_validated = [key for key in params_keys if key in getParamsAllKeys()]
+    param_keys_validated = [key for key in params_keys if key in available_keys]
     params_dict: dict[str, list[dict[str, str | bool | int]]] = {"params": []}
     for key in param_keys_validated:
       value = get_param_as_byte(key)

sunnypilot/sunnylink/utils.py

@@ -60,14 +60,20 @@ def get_api_token():
   print(f"API Token: {token}")
 
 
-def get_param_as_byte(param_name: str, params=None) -> bytes | None:
+def get_param_as_byte(param_name: str, params=None, get_default=False) -> bytes | None:
   """Get a parameter as bytes. Returns None if the parameter does not exist."""
-  params = params or Params() # Use existing Params instance if provided
-  param = params.get(param_name)
+  params = params or Params()
+  param = params.get(param_name) if not get_default else params.get_default_value(param_name)
+
   if param is None:
     return None
 
   param_type = params.get_type(param_name)
+  return _to_bytes(param, param_type)
+
+
+def _to_bytes(param: bytes, param_type: ParamKeyType) -> bytes | None:
+  """Convert a parameter value to bytes based on its type."""
   if param_type == ParamKeyType.BYTES:
     return bytes(param)
   elif param_type == ParamKeyType.JSON: