%% WARNING: DO NOT EDIT, AUTO-GENERATED CODE!
%% See https://github.com/aws-beam/aws-codegen for more details.


-module(aws_identitystore).

-export([describe_group/2,
         describe_group/3,
         describe_user/2,
         describe_user/3,
         list_groups/2,
         list_groups/3,
         list_users/2,
         list_users/3]).

-include_lib("hackney/include/hackney_lib.hrl").

%%====================================================================
%% API
%%====================================================================

%% @doc Retrieves the group metadata and attributes from `GroupId' in an
%% identity store.
describe_group(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_group(Client, Input, []).
describe_group(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeGroup">>, Input, Options).

%% @doc Retrieves the user metadata and attributes from `UserId' in an
%% identity store.
describe_user(Client, Input)
  when is_map(Client), is_map(Input) ->
    describe_user(Client, Input, []).
describe_user(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"DescribeUser">>, Input, Options).

%% @doc Lists the attribute name and value of the group that you specified in
%% the search.
%%
%% We only support `DisplayName' as a valid filter attribute path currently,
%% and filter is required. This API returns minimum attributes, including
%% `GroupId' and group `DisplayName' in the response.
list_groups(Client, Input)
  when is_map(Client), is_map(Input) ->
    list_groups(Client, Input, []).
list_groups(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"ListGroups">>, Input, Options).

%% @doc Lists the attribute name and value of the user that you specified in
%% the search.
%%
%% We only support `UserName' as a valid filter attribute path currently, and
%% filter is required. This API returns minimum attributes, including
%% `UserId' and `UserName' in the response.
list_users(Client, Input)
  when is_map(Client), is_map(Input) ->
    list_users(Client, Input, []).
list_users(Client, Input, Options)
  when is_map(Client), is_map(Input), is_list(Options) ->
    request(Client, <<"ListUsers">>, Input, Options).

%%====================================================================
%% Internal functions
%%====================================================================

-spec request(aws_client:aws_client(), binary(), map(), list()) ->
    {ok, Result, {integer(), list(), hackney:client()}} |
    {error, Error, {integer(), list(), hackney:client()}} |
    {error, term()} when
    Result :: map() | undefined,
    Error :: map().
request(Client, Action, Input0, Options) ->
    Client1 = Client#{service => <<"identitystore">>},
    Host = build_host(<<"identitystore">>, Client1),
    URL = build_url(Host, Client1),
    Headers = [
        {<<"Host">>, Host},
        {<<"Content-Type">>, <<"application/x-amz-json-1.1">>},
        {<<"X-Amz-Target">>, <<"AWSIdentityStore.", Action/binary>>}
    ],

    Input = Input0,

    Payload = jsx:encode(Input),
    SignedHeaders = aws_request:sign_request(Client1, <<"POST">>, URL, Headers, Payload),
    Response = hackney:request(post, URL, SignedHeaders, Payload, Options),
    handle_response(Response).

handle_response({ok, 200, ResponseHeaders, Client}) ->
    case hackney:body(Client) of
        {ok, <<>>} ->
            {ok, undefined, {200, ResponseHeaders, Client}};
        {ok, Body} ->
            Result = jsx:decode(Body),
            {ok, Result, {200, ResponseHeaders, Client}}
    end;
handle_response({ok, StatusCode, ResponseHeaders, Client}) ->
    {ok, Body} = hackney:body(Client),
    Error = jsx:decode(Body),
    {error, Error, {StatusCode, ResponseHeaders, Client}};
handle_response({error, Reason}) ->
    {error, Reason}.

build_host(_EndpointPrefix, #{region := <<"local">>, endpoint := Endpoint}) ->
    Endpoint;
build_host(_EndpointPrefix, #{region := <<"local">>}) ->
    <<"localhost">>;
build_host(EndpointPrefix, #{region := Region, endpoint := Endpoint}) ->
    aws_util:binary_join([EndpointPrefix, Region, Endpoint], <<".">>).

build_url(Host, Client) ->
    Proto = maps:get(proto, Client),
    Port = maps:get(port, Client),
    aws_util:binary_join([Proto, <<"://">>, Host, <<":">>, Port, <<"/">>], <<"">>).