-module(bravo@dbag).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([new/3, insert/2, lookup/2, delete/1]).
-export_type([d_bag/1]).

-opaque d_bag(GFO) :: {d_bag, gleam@erlang@atom:atom_(), integer()} |
    {gleam_phantom, GFO}.

-spec new(binary(), integer(), bravo@etc:access()) -> {ok, d_bag(any())} |
    {error, gleam@option:option(bravo@error:erlang_error())}.
new(Name, Keypos, Access) ->
    Atom = erlang:binary_to_atom(Name),
    gleam@bool:guard(
        Keypos < 1,
        {error, none},
        fun() ->
            gleam@result:'try'(
                begin
                    _pipe = bravo:try_new(Atom, [duplicate_bag, case Access of
                                public ->
                                    public;

                                protected ->
                                    protected;

                                private ->
                                    private
                            end, named_table, {keypos, Keypos}, {write_concurrency,
                                auto}, {read_concurrency, true}, {decentralized_counters,
                                true}]),
                    gleam@result:map_error(_pipe, fun(E) -> {some, E} end)
                end,
                fun(A) -> {ok, {d_bag, A, Keypos}} end
            )
        end
    ).

-spec insert(d_bag(GFU), list(GFU)) -> boolean().
insert(Dbag, Objects) ->
    bravo:try_insert(erlang:element(2, Dbag), erlang:element(3, Dbag), Objects).

-spec lookup(d_bag(GFX), any()) -> list(GFX).
lookup(Dbag, Key) ->
    bravo:try_lookup(erlang:element(2, Dbag), Key).

-spec delete(d_bag(any())) -> boolean().
delete(Dbag) ->
    bravo:try_delete(erlang:element(2, Dbag)).