/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 *   https://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.
 *
 *   SPDX-License-Identifier: Apache-2.0
 */

package org.apache.jena.rdf12;

import static org.junit.jupiter.api.Assertions.assertThrows;

import org.junit.jupiter.api.Test;

import org.apache.jena.riot.Lang;
import org.apache.jena.riot.RDFParser;
import org.apache.jena.riot.RiotException;
import org.apache.jena.riot.lang.turtlejcc.TurtleJCC;
import org.apache.jena.riot.system.ErrorHandler;
import org.apache.jena.riot.system.ErrorHandlerFactory;
import org.apache.jena.riot.system.StreamRDF;
import org.apache.jena.riot.system.StreamRDFLib;

/**
 * Test parsing of occurrences and triple terms in Turtle.
 */
public class TestTurtleTripleTermsParse {

    private ErrorHandler silent = ErrorHandlerFactory.errorHandlerStrictNoLogging;
    private static StreamRDF sink = StreamRDFLib.sinkNull();

    @Test public void parse_turtle_good_1()    { parse("<<:s :p :o>> :q 1 . "); }

    @Test public void parse_turtle_good_2()    { parse(":x :p <<:s :p :o>> . "); }

    @Test public void parse_turtle_good_3()    { parse(":x :p [ :q <<:s :p :o>> ]. "); }

    @Test public void parse_turtle_good_4()    { parse("( <<:s :p :o>> ) :p :z . "); }

    @Test public void parse_turtle_good_5()    { parse("( <<[] :p []>> ) :p :z . "); }

    @Test public void parse_turtle_good_10()   { parse("<<:s :p <<:x :r :z >>>> :q 1 . "); }

    @Test public void parse_turtle_good_20()   { parse(":a :p <<:s :p <<:x :r :z >>>> . "); }

    // Reified triple declarations.
    public void parse_turtle_good_30()           { parse("<<:s :p :o>> . "); }

    // Triple Terms.
    @Test public void parse_turtle_good_50()   { parse(":a :p <<(:s :p <<(:x :r :z )>>)>> . "); }

    @Test
    public void parse_turtle_bad_2()           { parseException("<<(:s :p :o )>> :q 1 . "); }

    @Test
    public void parse_turtle_bad_3()           { parseException(":s :q <<:s :p (3) >> . "); }

    @Test
    public void parse_turtle_bad_4()           { parseException(":s :p <<( 3 :q :t >> . "); }

    private void parseException(String string) {
        assertThrows(RiotException.class, ()->parse(string));
    }

    private void parse(String string) {
        string = "PREFIX : <http://example/>\n"+string;

        Lang lang1 = Lang.TURTLE;
        Lang lang2 = TurtleJCC.TTLJCC;
        Lang lang = lang1;

        RDFParser.fromString(string, lang).errorHandler(silent).parse(sink);
    }
}
