/**
 *
 * Copyright 2014 Anno van Vliet, All rights reserved.
 *
 * 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.
 */
package org.jivesoftware.smackx.xdatalayout.packet;

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

import java.io.IOException;
import java.io.InputStreamReader;

import org.jivesoftware.smack.util.PacketParserUtils;
import org.jivesoftware.smack.xml.XmlPullParser;
import org.jivesoftware.smack.xml.XmlPullParserException;

import org.jivesoftware.smackx.xdata.packet.DataForm;
import org.jivesoftware.smackx.xdata.provider.DataFormProvider;
import org.jivesoftware.smackx.xdatalayout.packet.DataLayout.Fieldref;
import org.jivesoftware.smackx.xdatalayout.packet.DataLayout.Reportedref;
import org.jivesoftware.smackx.xdatalayout.packet.DataLayout.Section;
import org.jivesoftware.smackx.xdatalayout.packet.DataLayout.Text;
import org.jivesoftware.smackx.xdatalayout.provider.DataLayoutProvider;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for DataForm reading and parsing.
 *
 * @author Anno van Vliet
 *
 */
public class DataLayoutTest {
    // @formatter:off
    private static final String TEST_OUTPUT_2 =
                     "<page xmlns='http://jabber.org/protocol/xdata-layout' label='Label'>"
                   +    "<fieldref var='testField1'/>"
                   +    "<section label='section Label'>"
                   +      "<text>SectionText</text>"
                   +    "</section>"
                   +    "<text>PageText</text>"
                   +  "</page>";

    private static final String TEST_OUTPUT_SPECIAL =
                      "<page xmlns='http://jabber.org/protocol/xdata-layout' label='Label - &amp; \u00E9 \u00E1 '>"
                    +   "<fieldref var='testField1'/>"
                    +   "<section label='section Label - &amp; \u00E9 \u00E1 '>"
                    +     "<text>SectionText - &amp; \u00E9 \u00E1 </text>"
                    +   "</section>"
                    +   "<text>PageText - &amp; \u00E9 \u00E1 </text>"
                    +   "<section label='&lt;html>Number of Persons by&lt;br/> Nationality and Status&lt;/html>'>"
                    +     "<reportedref/>"
                    +   "</section>"
                    +   "<text>&lt;html&gt;&lt;font color=&apos;red&apos;&gt;&lt;em&gt;DO NOT DELAY&lt;/em&gt;&lt;/font&gt;&lt;br/&gt;supply further information&lt;/html&gt;</text>"
                    + "</page>";

    // @formatter:on

    private static final String TEST_INPUT_1 = "xdata-layout-sample.xml";

    @Test
    public void testLayout() throws Exception {
        DataLayout layout = new DataLayout("Label");
        Fieldref reffield = new Fieldref("testField1");
        layout.getPageLayout().add(reffield);
        Section section = new Section("section Label");
        section.getSectionLayout().add(new Text("SectionText"));
        layout.getPageLayout().add(section);
        layout.getPageLayout().add(new Text("PageText"));

        assertNotNull(layout.toXML());
        String output = layout.toXML().toString();
        assertEquals(TEST_OUTPUT_2, output);

        XmlPullParser parser = PacketParserUtils.getParserFor(output);

        layout = DataLayoutProvider.parse(parser);

        assertEquals(3 , layout.getPageLayout().size());
        assertEquals("Label", layout.getLabel());

        assertNotNull(layout.toXML());
        output = layout.toXML().toString();
        assertEquals(TEST_OUTPUT_2, output);
    }

    @Test
    public void testLayoutSpecialCharacters() throws XmlPullParserException, IOException {

        DataLayout layout = new DataLayout("Label - & \u00E9 \u00E1 ");
        Fieldref reffield = new Fieldref("testField1");
        layout.getPageLayout().add(reffield);
        Section section = new Section("section Label - & \u00E9 \u00E1 ");
        section.getSectionLayout().add(new Text("SectionText - & \u00E9 \u00E1 "));
        layout.getPageLayout().add(section);
        layout.getPageLayout().add(new Text("PageText - & \u00E9 \u00E1 "));

        section = new Section("<html>Number of Persons by<br/> Nationality and Status</html>");
        section.getSectionLayout().add(new Reportedref());
        layout.getPageLayout().add(section);

        layout.getPageLayout().add(new Text("<html><font color='red'><em>DO NOT DELAY</em></font><br/>supply further information</html>"));


        assertNotNull(layout.toXML());
        String output = layout.toXML().toString();
        assertEquals(TEST_OUTPUT_SPECIAL, output);

        XmlPullParser parser = PacketParserUtils.getParserFor(output);

        layout = DataLayoutProvider.parse(parser);

        assertEquals(5 , layout.getPageLayout().size());
        assertEquals("Label - & \u00E9 \u00E1 ", layout.getLabel());
        section = (Section) layout.getPageLayout().get(1);
        assertEquals("section Label - & \u00E9 \u00E1 ", section.getLabel());
        Text text = (Text) layout.getPageLayout().get(2);
        assertEquals("PageText - & \u00E9 \u00E1 ", text.getText());
        section = (Section) layout.getPageLayout().get(3);
        assertEquals("<html>Number of Persons by<br/> Nationality and Status</html>", section.getLabel());
        text = (Text) layout.getPageLayout().get(4);
        assertEquals("<html><font color='red'><em>DO NOT DELAY</em></font><br/>supply further information</html>", text.getText());


        assertNotNull(layout.toXML());
        output = layout.toXML().toString();
        assertEquals(TEST_OUTPUT_SPECIAL, output);
    }

    @Test
    public void testLayoutFromFile() throws Exception {
        DataFormProvider pr = new DataFormProvider();

        InputStreamReader inputStreamReader = new InputStreamReader(this.getClass().getResourceAsStream(TEST_INPUT_1), "UTF-8");
        XmlPullParser parser = PacketParserUtils.getParserFor(inputStreamReader);

        DataForm form = pr.parse(parser);
        assertNotNull(form);
        assertEquals(1 , form.getExtensionElements().size());

        DataLayout layout = (DataLayout) form.getExtensionElements().get(0);

        assertEquals(5 , layout.getPageLayout().size());
        assertEquals("Label - & \u00E9 \u00E1 ", layout.getLabel());
        Section section = (Section) layout.getPageLayout().get(1);
        assertEquals("section Label - & \u00E9 \u00E1 ", section.getLabel());
        Text text = (Text) layout.getPageLayout().get(2);
        assertEquals("PageText - & \u00E9 \u00E1 ", text.getText());
        section = (Section) layout.getPageLayout().get(3);
        assertEquals("<html>Number of Persons by<br/> Nationality and Status</html>", section.getLabel());
        text = (Text) layout.getPageLayout().get(4);
        assertEquals("<html><font color='red'><em>DO NOT DELAY</em></font><br/>supply further information</html>", text.getText());


        assertNotNull(layout.toXML());
        String output = layout.toXML().toString();
        assertEquals(TEST_OUTPUT_SPECIAL, output);
    }
}