/*
 * Copyright (c) 2017 Pantheon Technologies, s.r.o. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.yangtools.yang.data.codec.xml;

import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;

import java.io.InputStream;
import java.io.StringWriter;
import java.util.Collection;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.opendaylight.yangtools.util.xml.UntrustedXML;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.test.util.YangParserTestUtils;

@RunWith(Parameterized.class)
public class Bug8803Test {
    @Parameterized.Parameters(name = "{0}")
    public static Collection<Object[]> data() {
        return TestFactories.junitParameters();
    }

    private static EffectiveModelContext SCHEMA_CONTEXT;

    private final XMLOutputFactory factory;

    public Bug8803Test(final String factoryMode, final XMLOutputFactory factory) {
        this.factory = factory;
    }

    @BeforeClass
    public static void beforeClass() {
        SCHEMA_CONTEXT = YangParserTestUtils.parseYangResourceDirectory("/bug8803");
    }

    @AfterClass
    public static void afterClass() {
        SCHEMA_CONTEXT = null;
    }

    @Test
    public void test() throws Exception {
        final SchemaNode dataSchemaNode = SCHEMA_CONTEXT.findDataTreeChild(QName.create("foo-ns", "top-cont"))
            .orElse(null);
        assertThat(dataSchemaNode, instanceOf(ContainerSchemaNode.class));
        final ContainerSchemaNode topContSchema = (ContainerSchemaNode) dataSchemaNode;

        final InputStream resourceAsStream = Bug8803Test.class.getResourceAsStream("/bug8803/foo.xml");

        // deserialization
        final XMLStreamReader reader = UntrustedXML.createXMLStreamReader(resourceAsStream);

        final NormalizedNodeResult result = new NormalizedNodeResult();
        final NormalizedNodeStreamWriter streamWriter = ImmutableNormalizedNodeStreamWriter.from(result);
        final XmlParserStream xmlParser = XmlParserStream.create(streamWriter, SCHEMA_CONTEXT, topContSchema);
        xmlParser.parse(reader);
        final NormalizedNode transformedInput = result.getResult();
        assertNotNull(transformedInput);

        // serialization
        final StringWriter writer = new StringWriter();
        final XMLStreamWriter xmlStreamWriter = factory.createXMLStreamWriter(writer);

        final NormalizedNodeStreamWriter xmlNormalizedNodeStreamWriter = XMLStreamNormalizedNodeStreamWriter.create(
                xmlStreamWriter, SCHEMA_CONTEXT);

        final NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(
                xmlNormalizedNodeStreamWriter);
        normalizedNodeWriter.write(transformedInput);
        normalizedNodeWriter.flush();

        final String serializedXml = writer.toString();
        assertFalse(serializedXml.isEmpty());
    }
}