%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  This file is part of Logtalk <https://logtalk.org/>
%  Copyright 1998-2021 Paulo Moura <pmoura@logtalk.org>
%  SPDX-License-Identifier: Apache-2.0
%
%  Licensed under the Apache License, Version 2.0 (the "License");
%  you may not use this file except in compliance with the License.
%  You may obtain a copy of the License at
%
%      http://www.apache.org/licenses/LICENSE-2.0
%
%  Unless required by applicable law or agreed to in writing, software
%  distributed under the License is distributed on an "AS IS" BASIS,
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%  See the License for the specific language governing permissions and
%  limitations under the License.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


:- if(\+ current_logtalk_flag(encoding_directive, unsupported)).

	:- if((current_logtalk_flag(prolog_dialect, Dialect), (Dialect == swi; Dialect == yap))).

		% SWI-Prolog and YAP don't support UTF-32 or full UTF-16
		:- initialization((
			set_logtalk_flag(report, warnings),
			logtalk_load(lgtunit(loader)),
			logtalk_load([asian, babel, latin], [source_data(on), debug(on)]),
			logtalk_load([tests_iso_8859_1, tests_utf_8, tests_utf_16], [hook(lgtunit)]),
			lgtunit::run_test_sets([
				tests_iso_8859_1,
				tests_utf_8,
				tests_utf_16
			])
		)).

	:- elif((current_logtalk_flag(prolog_dialect, Dialect), (Dialect == ji; Dialect == tau; Dialect == trealla))).

		% these backends only supported Unicode encoding is UTF-8
		:- initialization((
			set_logtalk_flag(report, warnings),
			logtalk_load(lgtunit(loader)),
			logtalk_load([babel], [source_data(on), debug(on)]),
			logtalk_load([tests_utf_8], [hook(lgtunit)]),
			tests_utf_8::run
		)).

	:- elif((current_logtalk_flag(prolog_dialect, Dialect), (Dialect == cx; Dialect == sicstus))).

		% neither CxProlog and SICStus Prolog provide up-to-date support for UTF-16
		:- initialization((
			set_logtalk_flag(report, warnings),
			logtalk_load(lgtunit(loader)),
			logtalk_load([asian, babel, latin, mythology], [source_data(on), debug(on)]),
			logtalk_load([tests_iso_8859_1, tests_utf_8, tests_utf_16, tests_utf_32], [hook(lgtunit)]),
			lgtunit::run_test_sets([
				tests_iso_8859_1,
				tests_utf_8,
				tests_utf_16,
				tests_utf_32
			])
		)).

	:- else.

		% assume full backend support for UTF-8, UTF-16 (including up-to-date surrogate support), and UTF-32
		:- initialization((
			set_logtalk_flag(report, warnings),
			logtalk_load(lgtunit(loader)),
			logtalk_load([mahjong, asian, babel, latin, mythology], [source_data(on), debug(on)]),
			logtalk_load([tests_iso_8859_1, tests_utf_8, tests_utf_16, tests_utf_16_surrogates, tests_utf_32], [hook(lgtunit)]),
			lgtunit::run_test_sets([
				tests_iso_8859_1,
				tests_utf_8,
				tests_utf_16,
				tests_utf_16_surrogates,
				tests_utf_32
			])
		)).

	:- endif.

:- else.

	:- initialization((
		write('(not applicable)'), nl
	)).

:- endif.
