/*   Copyright 2005 The Apache Software Foundation
 *
 *   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 xmlcursor.detailed;

import org.apache.xmlbeans.XmlCursor;
import org.apache.xmlbeans.XmlLineNumber;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;
import org.junit.jupiter.api.Test;

import java.io.File;

import static common.Common.P;
import static common.Common.XBEAN_CASE_ROOT;
import static org.junit.jupiter.api.Assertions.*;

public class XmlLineNumberTest {
    private static final String XML =
        "<people><person born=\"1912\" died=\"1954\" id=\"p342\">\n" +
        "    <name>\n" +
        "\t\t<first_name>Alan</first_name>\n" +
        "\t\t<last_name>Turing</last_name>\n" +
        "</name>\n" +
        "</person></people>";

    private static final String xmlFile = XBEAN_CASE_ROOT + P + "xmlcursor" + P + "Employees.xml";

    /**
     * test obtaining XmlLineNumber bookmark with option
     * XmlOptions.setLoadLineNumbers()
     */
    @Test
    void testGetBookmark1() throws Exception {
        File f = new File(xmlFile);
        XmlOptions opt = new XmlOptions();
        opt.setLoadLineNumbers();
        XmlObject xo = XmlObject.Factory.parse(f, opt);

        try (XmlCursor c = xo.newCursor()) {
            c.toFirstChild();
            assertEquals(XmlCursor.TokenType.START, c.currentTokenType());
            XmlLineNumber ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertNotNull(ln);
            assertEquals(16, ln.getLine());
            c.toFirstChild();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(17, ln.getLine());
            c.toEndToken();
            assertEquals(XmlCursor.TokenType.END, c.currentTokenType());
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            // no bookmark at END
            assertNull(ln);
        }
    }

    /**
     * test obtaining XmlLineNumber bookmark with option
     * XmlOptions.setLoadLineNumbers(XmlOptions.LOAD_LINE_NUMBERS_END_ELEMENT)
     */
    @Test
    void testGetBookmark2() throws Exception {
        File f = new File(xmlFile);
        XmlOptions opt = new XmlOptions();
        opt.setLoadLineNumbersEndElement();
        XmlObject xo = XmlObject.Factory.parse(f, opt);

        try (XmlCursor c = xo.newCursor()) {
            c.toFirstChild();
            assertEquals(XmlCursor.TokenType.START, c.currentTokenType());
            XmlLineNumber ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertNotNull(ln);
            assertEquals(16, ln.getLine());
            c.toFirstChild();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(17, ln.getLine());
            c.toEndToken();
            assertEquals(XmlCursor.TokenType.END, c.currentTokenType());
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            // there is a bookmark at END
            assertNotNull(ln);
            assertEquals(34, ln.getLine());
        }
    }

    /**
     * test using XmlLineNumber to get line number, column, and offset
     * - parsing xml from string
     */
    @Test
    void testLineNumber1() throws Exception {
        XmlOptions opt = new XmlOptions().setLoadLineNumbers();
        XmlObject xo = XmlObject.Factory.parse(XML, opt);

        try (XmlCursor c = xo.newCursor()) {
            c.toFirstContentToken();
            c.toFirstChild();
            XmlLineNumber ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(1, ln.getLine());
            assertEquals(50, ln.getColumn());
            // offset is not implemented
            assertEquals(-1, ln.getOffset());
            c.toFirstChild();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(2, ln.getLine());
            assertEquals(10, ln.getColumn());
            c.toFirstChild();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(3, ln.getLine());
            // finishes after reading after <first_name> + 2xtabs
            assertEquals(14, ln.getColumn());
        }
    }

    /**
     * test using XmlLineNumber to get line number, column, and offset
     * - parsing xml from file
     */
    @Test
    void testLineNumber2() throws Exception {
        File f = new File(xmlFile);
        XmlOptions opt = new XmlOptions();
        opt.setLoadLineNumbersEndElement();
        XmlObject xo = XmlObject.Factory.parse(f, opt);

        try (XmlCursor c = xo.newCursor()) {
            c.toFirstContentToken();
            c.toFirstChild();
            XmlLineNumber ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(17, ln.getLine());
            assertEquals(15, ln.getColumn());
            assertEquals(-1, ln.getOffset());
            c.toFirstChild();
            c.push();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(18, ln.getLine());
            assertEquals(13, ln.getColumn());
            c.toEndToken();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(18, ln.getLine());
            assertEquals(33, ln.getColumn());
            c.pop();
            c.toNextSibling(); //address
            c.toEndToken();
            ln = (XmlLineNumber) c.getBookmark(XmlLineNumber.class);
            assertEquals(24, ln.getLine());
            assertEquals(17, ln.getColumn());
            assertEquals(-1, ln.getOffset());
        }
    }
}