/*
 * 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
 *
 *      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.
 */

package org.apache.stormcrawler.parse;

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

import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import org.apache.storm.Config;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.parser.Parser;
import org.junit.jupiter.api.Test;

class JSoupTextExtractorTest {

    @Test
    void testMainContent() throws IOException {
        Config conf = new Config();
        conf.put(JSoupTextExtractor.INCLUDE_PARAM_NAME, "DIV[id=\"maincontent\"]");
        JSoupTextExtractor extractor = new JSoupTextExtractor(conf);
        String content =
                "<html>the<div id='maincontent'>main<div>content</div></div>of the page</html>";
        Document jsoupDoc = Parser.htmlParser().parseInput(content, "http://stormcrawler.net");
        String text = extractor.text(jsoupDoc.body());
        assertEquals("main content", text);
    }

    @Test
    void testExclusion() throws IOException {
        Config conf = new Config();
        conf.put(JSoupTextExtractor.EXCLUDE_PARAM_NAME, "STYLE");
        JSoupTextExtractor extractor = new JSoupTextExtractor(conf);
        String content = "<html>the<style>main</style>content of the page</html>";
        Document jsoupDoc = Parser.htmlParser().parseInput(content, "http://stormcrawler.net");
        String text = extractor.text(jsoupDoc.body());
        assertEquals("the content of the page", text);
    }

    @Test
    void testExclusionCase() throws IOException {
        Config conf = new Config();
        conf.put(JSoupTextExtractor.EXCLUDE_PARAM_NAME, "style");
        JSoupTextExtractor extractor = new JSoupTextExtractor(conf);
        String content = "<html>the<STYLE>main</STYLE>content of the page</html>";
        Document jsoupDoc = Parser.htmlParser().parseInput(content, "http://stormcrawler.net");
        String text = extractor.text(jsoupDoc.body());
        assertEquals("the content of the page", text);
    }

    @Test
    void testTrimContent() throws IOException {
        Config conf = new Config();
        List<String> listinc = new LinkedList<>();
        listinc.add("ARTICLE");
        conf.put(JSoupTextExtractor.INCLUDE_PARAM_NAME, listinc);
        List<String> listex = new LinkedList<>();
        listex.add("STYLE");
        listex.add("SCRIPT");
        conf.put(JSoupTextExtractor.EXCLUDE_PARAM_NAME, listex);
        // set a limit
        conf.put(JSoupTextExtractor.TEXT_MAX_TEXT_PARAM_NAME, 5123900);
        JSoupTextExtractor extractor = new JSoupTextExtractor(conf);
        String filename = "longtext.html";
        Document jsoupDoc =
                Jsoup.parse(
                        getClass().getClassLoader().getResourceAsStream(filename),
                        "windows-1252",
                        "http://ilovelongtext.com");
        String text = extractor.text(jsoupDoc.body());
        // two characters get added
        assertEquals(5123902, text.length());
    }
}
