%%%-------------------------------------------------------------------
%%% @author anlicheng
%%% @copyright (C) 2025, <COMPANY>
%%% @doc
%%%
%%% @end
%%% Created : 17. 9月 2025 14:50
%%%-------------------------------------------------------------------
-module(docker_container_helper).
-author("anlicheng").

%% API
-export([ensure_dir/2, get_dir/2, get_config_file/1]).

-spec ensure_dir(RootDir :: string(), ContainerName :: binary()) -> {ok, ServerRootDir :: string()}.
ensure_dir(RootDir, ContainerName) when is_list(RootDir), is_binary(ContainerName) ->
    %% 根目录
    ContainerRootDir = RootDir ++ "/" ++ binary_to_list(ContainerName) ++ "/",
    ok = filelib:ensure_dir(ContainerRootDir),
    {ok, ContainerRootDir}.

-spec get_config_file(ContainerDir :: string()) -> ConfigFile :: string().
get_config_file(ContainerDir) when is_list(ContainerDir) ->
    %% 根目录
    ContainerDir ++ "service.conf".

-spec get_dir(RootDir :: string(), ContainerName :: binary()) -> {ok, ServerRootDir :: string()} | error.
get_dir(RootDir, ContainerName) when is_list(RootDir), is_binary(ContainerName) ->
    %% 根目录
    ContainerRootDir = RootDir ++ "/" ++ binary_to_list(ContainerName) ++ "/",
    case filelib:is_dir(ContainerRootDir) of
        true ->
            {ok, ContainerRootDir};
        false ->
            error
    end.