-module(l4u@bif_lib).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([moddir_to_modulename/1, erlang_module_of/1, invoke_native_function/2, bif_lib_def/0]).

-spec bif_pr_str(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_pr_str(Exprs, Env) ->
    Str = begin
        _pipe = gleam@list:map(Exprs, fun l4u@l4u_core:print/1),
        gleam@string:join(_pipe, <<" "/utf8>>)
    end,
    {with_env, {string, Str}, Env}.

-spec bif_seq(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_seq(Exprs, Env) ->
    [X] = case Exprs of
        [_] -> Exprs;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_seq"/utf8>>,
                        line => 45})
    end,
    Seq = case X of
        nil ->
            nil;

        {string, <<""/utf8>>} ->
            nil;

        {string, S} ->
            Graphemes = begin
                _pipe = gleam@string:to_graphemes(S),
                gleam@list:map(_pipe, fun(Field@0) -> {string, Field@0} end)
            end,
            {list, Graphemes};

        {list, Xs} ->
            case Xs of
                [] ->
                    nil;

                _ ->
                    {list, Xs}
            end;

        {vector, Xs} ->
            case Xs of
                [] ->
                    nil;

                _ ->
                    {list, Xs}
            end;

        _ ->
            l4u@sys_bridge_ffi:throw_err(
                <<"seq: wrong number of arguments"/utf8>>
            ),
            undefined
    end,
    {with_env, Seq, Env}.

-spec bif_os_cmd(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_os_cmd(Exprs, Env) ->
    [{string, Cmd}] = case Exprs of
        [{string, _}] -> Exprs;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_os_cmd"/utf8>>,
                        line => 70})
    end,
    Res_str = l4u@sys_bridge_ffi:os_cmd(Cmd),
    {with_env, {string, Res_str}, Env}.

-spec bif_native_nodes(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_native_nodes(Exprs, Env) ->
    Nodes = l4u@sys_bridge_ffi:erl_get_nodes(),
    {with_env, Nodes, Env}.

-spec bif_native_processes(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_native_processes(Exprs, Env) ->
    Processes = l4u@sys_bridge_ffi:erl_get_processes(),
    {with_env, Processes, Env}.

-spec bif_erl_self(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_erl_self(Exprs, Env) ->
    {with_env,
        {native_value, <<"pid"/utf8>>, l4u_ffi:unsafe_corece(erlang:self())},
        Env}.

-spec bif_erl_send(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_erl_send(Exprs, Env) ->
    {with_env, undefined, Env}.

-spec bif_erl_receive_from(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_erl_receive_from(Exprs, Env) ->
    {with_env, undefined, Env}.

-spec moddir_to_modulename(list(l4u@l4u_type:expr())) -> binary().
moddir_to_modulename(Moddir) ->
    gleam@string:join(
        gleam@list:map(Moddir, fun l4u@l4u_core:pstr/1),
        <<"@"/utf8>>
    ).

-spec erlang_module_of(list(l4u@l4u_type:expr())) -> binary().
erlang_module_of(Exprs) ->
    Module@1 = case Exprs of
        [{string, Module}] ->
            Module;

        [{symbol, Module}] ->
            Module;

        [{keyword, Module}] ->
            Module;

        [{list, Moddirs}] ->
            moddir_to_modulename(Moddirs);

        [{vector, Moddirs}] ->
            moddir_to_modulename(Moddirs);

        _ ->
            l4u@sys_bridge_ffi:throw_err(
                <<"native-module-info: wrong number of arguments"/utf8>>
            ),
            <<"err"/utf8>>
    end,
    Module@1.

-spec bif_native_module_info(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_native_module_info(Exprs, Env) ->
    Module = erlang_module_of(Exprs),
    Module_info = l4u@sys_bridge_ffi:erl_get_module_info(Module),
    {with_env, {native_value, <<"module_info"/utf8>>, Module_info}, Env}.

-spec bif_import_native_module(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_import_native_module(Exprs, Env) ->
    Exprs@1 = case Exprs of
        [Moddir] ->
            [Moddir, {string, <<""/utf8>>}, {list, []}];

        [Moddir@1, Prefix] ->
            [Moddir@1, Prefix, {list, []}];

        [Moddir@2, Prefix@1, Options] ->
            [Moddir@2, Prefix@1, Options];

        Unhandable ->
            l4u@sys_bridge_ffi:throw_err(
                <<"import-native-module: wrong number of arguments"/utf8>>
            ),
            []
    end,
    Imported_functions = case Exprs@1 of
        [Moddir@3, Prefix@2, Options@1] ->
            _assert_subject = l4u@l4u_core:uneval(Moddir@3),
            {list, Moddir@4} = case _assert_subject of
                {list, _} -> _assert_subject;
                _assert_fail ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_module"/utf8>>,
                                line => 218})
            end,
            _assert_subject@1 = l4u@l4u_core:uneval(Options@1),
            {list, Options@2} = case _assert_subject@1 of
                {list, _} -> _assert_subject@1;
                _assert_fail@1 ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail@1,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_module"/utf8>>,
                                line => 219})
            end,
            Prefix@3 = l4u@l4u_core:pstr(Prefix@2),
            Modname = moddir_to_modulename(Moddir@4),
            Functions = l4u@sys_bridge_ffi:erl_get_module_functions(Modname),
            Underscore_to_hyphen = gleam@list:contains(
                Options@2,
                {keyword, <<"underscore-to-hyphen"/utf8>>}
            ),
            Delimiter = <<":"/utf8>>,
            gleam@list:map(
                Functions,
                fun(Fnname_and_arity) ->
                    {Fnname, Arity} = case Fnname_and_arity of
                        {_, _} -> Fnname_and_arity;
                        _assert_fail@2 ->
                            erlang:error(#{gleam_error => let_assert,
                                        message => <<"Assertion pattern match failed"/utf8>>,
                                        value => _assert_fail@2,
                                        module => <<"l4u/bif_lib"/utf8>>,
                                        function => <<"bif_import_native_module"/utf8>>,
                                        line => 234})
                    end,
                    Alias_name = case Prefix@3 of
                        <<""/utf8>> ->
                            Fnname;

                        _ ->
                            gleam@string:join([Prefix@3, Fnname], Delimiter)
                    end,
                    Fnname@1 = case Underscore_to_hyphen of
                        true ->
                            gleam@string:replace(
                                Fnname,
                                <<"_"/utf8>>,
                                <<"-"/utf8>>
                            );

                        _ ->
                            Fnname
                    end,
                    l4u@sys_bridge_ffi:process_dict_set(
                        erlang:element(3, Env),
                        Alias_name,
                        {native_function,
                            Alias_name,
                            l4u_ffi:unsafe_corece(
                                l4u@sys_bridge_ffi:erl_ref_native_fun(
                                    Modname,
                                    Fnname@1
                                )
                            )}
                    ),
                    {string, Alias_name}
                end
            );

        _ ->
            l4u@sys_bridge_ffi:throw_err(
                <<"import-native-module: wrong number of arguments"/utf8>>
            ),
            []
    end,
    {with_env, {list, Imported_functions}, Env}.

-spec bif_import_native_function(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_import_native_function(Exprs, Env) ->
    case Exprs of
        [Moddir, Fnname, Alias] ->
            _assert_subject = l4u@l4u_core:uneval(Moddir),
            {list, Moddir@1} = case _assert_subject of
                {list, _} -> _assert_subject;
                _assert_fail ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_function"/utf8>>,
                                line => 269})
            end,
            Fnname@1 = l4u@l4u_core:pstr(Fnname),
            Alias_name = l4u@l4u_core:pstr(Alias),
            Modname = gleam@string:join(
                gleam@list:map(Moddir@1, fun l4u@l4u_core:pstr/1),
                <<"@"/utf8>>
            ),
            l4u@sys_bridge_ffi:process_dict_set(
                erlang:element(3, Env),
                Alias_name,
                {native_function,
                    Fnname@1,
                    l4u_ffi:unsafe_corece(
                        l4u@sys_bridge_ffi:erl_ref_native_fun(Modname, Fnname@1)
                    )}
            );

        [Moddir@2, Fnname@2] ->
            _assert_subject@1 = l4u@l4u_core:uneval(Moddir@2),
            {list, Moddir@3} = case _assert_subject@1 of
                {list, _} -> _assert_subject@1;
                _assert_fail@1 ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail@1,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_function"/utf8>>,
                                line => 284})
            end,
            Fnname@3 = l4u@l4u_core:pstr(Fnname@2),
            Alias_name@1 = Fnname@3,
            Modname@1 = gleam@string:join(
                gleam@list:map(Moddir@3, fun l4u@l4u_core:pstr/1),
                <<"@"/utf8>>
            ),
            l4u@sys_bridge_ffi:process_dict_set(
                erlang:element(3, Env),
                Alias_name@1,
                {native_function,
                    Alias_name@1,
                    l4u_ffi:unsafe_corece(
                        l4u@sys_bridge_ffi:erl_ref_native_fun(
                            Modname@1,
                            Fnname@3
                        )
                    )}
            );

        Unhandable ->
            l4u@sys_bridge_ffi:throw_err(
                <<"import-native-function: wrong number of arguments"/utf8>>
            )
    end,
    nil.

-spec bif_import_native_functions(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_import_native_functions(Exprs, Env) ->
    case Exprs of
        [Moddir, Fnnames] ->
            _assert_subject = l4u@l4u_core:uneval(Moddir),
            {list, Moddir@1} = case _assert_subject of
                {list, _} -> _assert_subject;
                _assert_fail ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_functions"/utf8>>,
                                line => 308})
            end,
            _assert_subject@1 = l4u@l4u_core:uneval(Fnnames),
            {list, Fnnames@1} = case _assert_subject@1 of
                {list, _} -> _assert_subject@1;
                _assert_fail@1 ->
                    erlang:error(#{gleam_error => let_assert,
                                message => <<"Assertion pattern match failed"/utf8>>,
                                value => _assert_fail@1,
                                module => <<"l4u/bif_lib"/utf8>>,
                                function => <<"bif_import_native_functions"/utf8>>,
                                line => 309})
            end,
            Modname = gleam@string:join(
                gleam@list:map(Moddir@1, fun l4u@l4u_core:pstr/1),
                <<"@"/utf8>>
            ),
            gleam@list:each(
                Fnnames@1,
                fun(Fnname) ->
                    Fnname@1 = l4u@l4u_core:pstr(Fnname),
                    Alias_name = Fnname@1,
                    l4u@sys_bridge_ffi:process_dict_set(
                        erlang:element(3, Env),
                        Alias_name,
                        {native_function,
                            Alias_name,
                            l4u_ffi:unsafe_corece(
                                l4u@sys_bridge_ffi:erl_ref_native_fun(
                                    Modname,
                                    Fnname@1
                                )
                            )}
                    )
                end
            );

        _ ->
            l4u@sys_bridge_ffi:throw_err(
                <<"import-native-functions: wrong number of arguments"/utf8>>
            )
    end,
    nil.

-spec bif_native_function(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_native_function(Exprs, Env) ->
    case Exprs of
        [Moddir, Fnname] ->
            Modname = case l4u@l4u_core:uneval(Moddir) of
                {vector, Moddir@1} ->
                    moddir_to_modulename(Moddir@1);

                {list, Moddir@1} ->
                    moddir_to_modulename(Moddir@1);

                Expr ->
                    l4u@l4u_core:pstr(Expr)
            end,
            Fnname@1 = l4u@l4u_core:pstr(l4u@l4u_core:uneval(Fnname)),
            Alias_name = Fnname@1,
            {native_function,
                Alias_name,
                l4u_ffi:unsafe_corece(
                    l4u@sys_bridge_ffi:erl_ref_native_fun(Modname, Fnname@1)
                )};

        _ ->
            l4u@sys_bridge_ffi:throw_err(
                <<"native-function: wrong number of arguments"/utf8>>
            ),
            undefined
    end.

-spec invoke_native_function(l4u@l4u_type:expr(), list(l4u@l4u_type:expr())) -> l4u@l4u_type:expr().
invoke_native_function(Native_fun, Args) ->
    _assert_subject = l4u@l4u_core:uneval(Native_fun),
    {native_function, _, Native_fundef} = case _assert_subject of
        {native_function, _, _} -> _assert_subject;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"invoke_native_function"/utf8>>,
                        line => 374})
    end,
    {Modpath, Fnname} = l4u_ffi:unsafe_corece(Native_fundef),
    Native_args = gleam@list:map(Args, fun l4u_ffi:l4u_to_native/1),
    Erl_result = l4u@sys_bridge_ffi:erl_fn_apply(Native_fundef, Native_args),
    Cvl4u = l4u_ffi:native_to_l4u(Erl_result),
    Cvl4u.

-spec bif_invoke_native_function(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_invoke_native_function(Exprs, Env) ->
    [Native_fun, Args] = case Exprs of
        [_, _] -> Exprs;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_invoke_native_function"/utf8>>,
                        line => 362})
    end,
    _assert_subject = l4u@l4u_core:uneval(Args),
    {list, Args@1} = case _assert_subject of
        {list, _} -> _assert_subject;
        _assert_fail@1 ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail@1,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_invoke_native_function"/utf8>>,
                        line => 363})
    end,
    Rexpr = invoke_native_function(Native_fun, Args@1),
    {with_env, Rexpr, Env}.

-spec bif_shared_put(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_shared_put(Exprs, Env) ->
    [Key, Value] = case Exprs of
        [_, _] -> Exprs;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_shared_put"/utf8>>,
                        line => 389})
    end,
    persistent_term:put(l4u@l4u_core:pstr(Key), Value),
    {with_env, Value, Env}.

-spec bif_shared_get(list(l4u@l4u_type:expr()), l4u@l4u_type:env()) -> l4u@l4u_type:expr().
bif_shared_get(Exprs, Env) ->
    [Key, Default_value] = case Exprs of
        [_, _] -> Exprs;
        _assert_fail ->
            erlang:error(#{gleam_error => let_assert,
                        message => <<"Assertion pattern match failed"/utf8>>,
                        value => _assert_fail,
                        module => <<"l4u/bif_lib"/utf8>>,
                        function => <<"bif_shared_get"/utf8>>,
                        line => 395})
    end,
    Rval = persistent_term:get(l4u@l4u_core:pstr(Key), Default_value),
    {with_env, Rval, Env}.

-spec bif_lib_def() -> list({binary(), l4u@l4u_type:expr()}).
bif_lib_def() ->
    Bif = fun(Name, F) -> {Name, {bif, l4u@l4u_core:description(Name), F}} end,
    Bsf = fun(Name@1, F@1) ->
        {Name@1, {bispform, l4u@l4u_core:description(Name@1), F@1}}
    end,
    [Bif(<<"seq"/utf8>>, fun bif_seq/2),
        Bif(<<"self"/utf8>>, fun bif_erl_self/2),
        Bif(<<"send"/utf8>>, fun bif_erl_send/2),
        Bif(<<"receive-from"/utf8>>, fun bif_erl_receive_from/2),
        Bif(<<"import-native-module"/utf8>>, fun bif_import_native_module/2),
        Bif(<<"import-native-function"/utf8>>, fun bif_import_native_function/2),
        Bif(
            <<"import-native-functions"/utf8>>,
            fun bif_import_native_functions/2
        ),
        Bif(<<"native-function"/utf8>>, fun bif_native_function/2),
        Bif(<<"invoke-native-function"/utf8>>, fun bif_invoke_native_function/2),
        Bif(<<"os-cmd"/utf8>>, fun bif_os_cmd/2),
        Bif(<<"native-module-info"/utf8>>, fun bif_native_module_info/2),
        Bif(<<"native-nodes"/utf8>>, fun bif_native_nodes/2),
        Bif(<<"native-processes"/utf8>>, fun bif_native_processes/2),
        Bif(<<"shared-put"/utf8>>, fun bif_shared_put/2),
        Bif(<<"shared-get"/utf8>>, fun bif_shared_get/2)].