-module(go_over@hook).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([main/0]).

-spec get_path() -> binary().
get_path() ->
    _pipe = simplifile:current_directory(),
    _pipe@1 = go_over@util@util:hard_fail(
        _pipe,
        <<"could not get current path"/utf8>>
    ),
    _pipe@2 = filepath:join(_pipe@1, <<".git"/utf8>>),
    filepath:join(_pipe@2, <<"hooks"/utf8>>).

-spec main() -> {ok, nil} | {error, simplifile:file_error()}.
main() ->
    Pwd = get_path(),
    _pipe = simplifile:create_directory_all(Pwd),
    go_over@util@util:hard_fail(
        _pipe,
        <<"could not create hooks directory"/utf8>>
    ),
    Pre_commit_path = filepath:join(Pwd, <<"pre-commit"/utf8>>),
    go_over@util@util:throwaway(
        go_over@util@util:has_flag(
            shellout_ffi:start_arguments(),
            <<"recreate"/utf8>>
        ),
        go_over@util@util:freeze1(fun simplifile:delete/1, Pre_commit_path)
    ),
    _ = simplifile:create_file(Pre_commit_path),
    All = gleam@set:from_list([read, write, execute]),
    _ = simplifile:set_permissions(
        Pre_commit_path,
        {file_permissions, All, All, All}
    ),
    simplifile:append(
        Pre_commit_path,
        <<"\n"/utf8, "gleam run -m go_over --target erlang"/utf8>>
    ).