-module(internal@fs).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([files_paths/1, files_contents/1, file_path_to_module_full_name/2]).
-export_type([file_path/0, file_content/0, files_dir/0, module_full_name/0]).

-type file_path() :: {file_path, binary()}.

-type file_content() :: {file_content, binary()}.

-type files_dir() :: {files_dir, binary()}.

-type module_full_name() :: {module_full_name, binary()}.

-spec files_paths(files_dir()) -> list(file_path()).
files_paths(Dir) ->
    {files_dir, Dir@1} = case Dir of
        {files_dir, _} -> Dir;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"internal/fs"/utf8>>,
                        function => <<"files_paths"/utf8>>,
                        line => 24})
    end,
    _pipe = fswalk:builder(),
    _pipe@1 = fswalk:with_path(_pipe, Dir@1),
    _pipe@2 = fswalk:walk(_pipe@1),
    _pipe@3 = gleam@iterator:filter(
        _pipe@2,
        fun(Entry_result) -> case Entry_result of
                {ok, {entry, Path, {stat, Is_dir}}} ->
                    (Is_dir =:= false) andalso gleam@string:ends_with(
                        Path,
                        <<".gleam"/utf8>>
                    );

                _ ->
                    false
            end end
    ),
    _pipe@4 = gleam@iterator:map(
        _pipe@3,
        fun(Entry_result@1) ->
            {ok, {entry, Path@1, _}} = case Entry_result@1 of
                {ok, {entry, _, _}} -> Entry_result@1;
                _assert_fail@1 ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail@1,
                                module => <<"internal/fs"/utf8>>,
                                function => <<"files_paths"/utf8>>,
                                line => 36})
            end,
            {file_path, Path@1}
        end
    ),
    gleam@iterator:to_list(_pipe@4).

-spec files_contents(list(file_path())) -> list(file_content()).
files_contents(Files_paths) ->
    gleam@list:map(
        Files_paths,
        fun(Path) ->
            {file_path, Path@1} = case Path of
                {file_path, _} -> Path;
                _assert_fail ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail,
                                module => <<"internal/fs"/utf8>>,
                                function => <<"files_contents"/utf8>>,
                                line => 44})
            end,
            _assert_subject = simplifile:read(Path@1),
            {ok, Content} = case _assert_subject of
                {ok, _} -> _assert_subject;
                _assert_fail@1 ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail@1,
                                module => <<"internal/fs"/utf8>>,
                                function => <<"files_contents"/utf8>>,
                                line => 45})
            end,
            {file_content, Content}
        end
    ).

-spec file_path_to_module_full_name(files_dir(), file_path()) -> module_full_name().
file_path_to_module_full_name(Files_dir, File_path) ->
    {files_dir, Files_dir@1} = case Files_dir of
        {files_dir, _} -> Files_dir;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"internal/fs"/utf8>>,
                        function => <<"file_path_to_module_full_name"/utf8>>,
                        line => 50})
    end,
    {file_path, File_path@1} = case File_path of
        {file_path, _} -> File_path;
        _assert_fail@1 ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail@1,
                        module => <<"internal/fs"/utf8>>,
                        function => <<"file_path_to_module_full_name"/utf8>>,
                        line => 51})
    end,
    _pipe = File_path@1,
    _pipe@1 = gleam@string:replace(
        _pipe,
        <<Files_dir@1/binary, "/"/utf8>>,
        <<""/utf8>>
    ),
    _pipe@2 = gleam@string:replace(_pipe@1, <<".gleam"/utf8>>, <<""/utf8>>),
    {module_full_name, _pipe@2}.