-module(yaml_parse_root).
-export([
  parse/3
]).

%% yaml dictionary is a map of subtree name => unparsed subtree yaml. this
%% can be extended by reading more files.
%% args is a proplist of {param, value}
-spec parse(FilePath :: string(), TreeName :: string(), Args :: list({string(), term()}) ) -> {ParsedTree :: term(), Blackboard :: term()}.
parse(RootFilePath, TreeName, Args) ->
  %% read yaml file
  YAMLDictionary = yaml_parser_utils:read_file(RootFilePath),
  bt_yaml_parser:parse(
    {TreeName, [{"args", Args}, {"ref", RootFilePath}]}, 
    bt_parser_utils:get_namespace(), #{}, 
    bt_blackboard:get_empty(), YAMLDictionary, 
    filename:dirname(RootFilePath)
  ).