/*   Copyright 2004 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.XmlCursor.TokenType;
import org.apache.xmlbeans.XmlObject;
import org.junit.jupiter.api.Test;
import test.xbean.xmlcursor.purchaseOrder.PurchaseOrderDocument;
import test.xbean.xmlcursor.purchaseOrder.PurchaseOrderType;
import test.xbean.xmlcursor.purchaseOrder.USAddress;
import tools.util.JarUtil;
import xmlcursor.common.Common;

import java.math.BigDecimal;

import static org.junit.jupiter.api.Assertions.*;
import static xmlcursor.common.BasicCursorTestCase.*;

public class CursorLocations {

    private static final Bookmark0 _theBookmark0 = new Bookmark0("value0");

    @Test
    void testLocation() throws Exception {
        XmlObject m_xo = jobj(Common.TRANXML_FILE_XMLCURSOR_PO);
        try (XmlCursor xc1 = m_xo.newCursor();
            XmlCursor xc2 = m_xo.newCursor();
            XmlCursor xc3 = cur(Common.XML_FOO_BAR_TEXT)) {
            toNextTokenOfType(xc2, TokenType.END);
            toNextTokenOfType(xc3, TokenType.START);


            //start w/ xc1 at beg of doc
            //xc2 at end of first elt (po:name)
            while (xc1.isLeftOf(xc2)) {
                assertFalse(xc1.isRightOf(xc2));
                assertTrue(xc2.isRightOf(xc1));
                assertTrue(xc1.isInSameDocument(xc2));
                assertFalse(xc2.isAtSamePositionAs(xc1));
                assertFalse(xc1.isAtSamePositionAs(xc2));
                assertEquals(1, xc2.comparePosition(xc1));
                assertEquals(-1, xc1.comparePosition(xc2));
                //	System.out.println(xc1.currentTokenType() + "       " +  xc2.currentTokenType());
                xc1.toNextToken();
                xc2.toPrevToken();
            }
            //xc1 & xc2 @ shipTo
            toNextTokenOfType(xc1,TokenType.TEXT);
            toNextTokenOfType(xc2,TokenType.TEXT);
            assertEquals(xc1.currentTokenType(), xc2.currentTokenType(), "Current Token Type ");
            //both @ Alice Smith
            toNextTokenOfType(xc1,TokenType.TEXT);
            toNextTokenOfType(xc2,TokenType.TEXT);
            assertEquals(TokenType.TEXT, xc1.currentTokenType());
            //these are only equivalent if the cursor is on a TEXT token
            assertEquals(xc1.getChars(), xc1.getTextValue());
            assertEquals(xc1.getChars(), xc2.getTextValue());

            assertTrue(xc1.isAtSamePositionAs(xc2));
            xc2.toNextChar(10);


            //comparing two cursors in the middle of text

            assertEquals(xc2.toPrevChar(4), xc1.toNextChar(4));
            assertTrue(xc2.isRightOf(xc1));
            assertFalse(xc1.isRightOf(xc2));
            assertFalse(xc2.isLeftOf(xc1));
            assertFalse(xc1.isAtSamePositionAs(xc2));
            assertEquals(1, xc2.comparePosition(xc1));
            assertTrue(xc1.isInSameDocument(xc2));
            xc1.toNextChar(2);
            assertEquals(0, xc2.comparePosition(xc1));
            assertEquals(xc1.currentTokenType(), xc2.currentTokenType());

            //Comparing the same cursor to itself
            xc1.toNextChar(1);
            assertFalse(xc1.isRightOf(xc1));
            assertEquals(0, xc2.comparePosition(xc2));
            assertTrue(xc2.isInSameDocument(xc2));
            assertTrue(xc2.isAtSamePositionAs(xc2));

            xc2.toPrevToken();
            //xc2 on Alice
            assertEquals(TokenType.TEXT, xc2.toPrevToken());
            //put the bookmark on S*mith
            xc1.setBookmark(_theBookmark0);

            //moving xml and bookmark to a
            // different location
            assertTrue(xc1.moveXml(xc3));
            try (XmlCursor xc4 = _theBookmark0.createCursor();
                XmlCursor debug=xc1.newCursor()) {
                assertNotNull(xc4);

                toPrevTokenOfType(debug,TokenType.START);
                assertTrue(xc4.isInSameDocument(xc3));
                assertEquals(-1, xc4.comparePosition(xc3));
                // assertEquals(TokenType.TEXT, xc3.toPrevToken());
                assertEquals(4, xc3.toPrevChar(4));
                assertEquals(0, xc4.comparePosition(xc3));

                //comparing in  two different documents
                assertFalse(xc2.isInSameDocument(xc3));

                assertThrows(IllegalArgumentException.class, () -> xc4.isLeftOf(xc2));
            }
        }
    }

    @Test
    void testLocationATTR() throws Exception {
        XmlObject m_xo = obj(Common.XML_FOO_5ATTR_TEXT);

        try (XmlCursor xc1 = m_xo.newCursor();
            XmlCursor xc2 = m_xo.newCursor()) {
            toNextTokenOfType(xc1, TokenType.ATTR);
            toNextTokenOfType(xc2, TokenType.ATTR);

            int i = 0;
            while (xc2.currentTokenType() == TokenType.ATTR) {
                xc2.toNextToken();
                ++i;
            }

            assertEquals(5, i);
            xc2.toPrevToken();

            //moving betweenAttributes. one cursor is at the last ATTR and other is at first ATTR.
            while (xc1.isLeftOf(xc2)) {
                assertFalse(xc1.isRightOf(xc2));
                assertTrue(xc2.isRightOf(xc1));
                assertTrue(xc1.isInSameDocument(xc2));
                assertFalse(xc2.isAtSamePositionAs(xc1));
                assertFalse(xc1.isAtSamePositionAs(xc2));
                assertEquals(1, xc2.comparePosition(xc1));
                assertEquals(-1, xc1.comparePosition(xc2));
                //	System.out.println(xc1.currentTokenType() + "       " +  xc2.currentTokenType());
                xc1.toNextToken();
                xc2.toPrevToken();
            }
            assertTrue(xc1.isAtSamePositionAs(xc2));

            //inserting and then comparing to make sure cursors move properly.
            xc2.insertAttributeWithValue("attr5", "val5");
            assertEquals(0, xc1.comparePosition(xc2));

            xc2.toPrevToken();
            assertEquals("val5", xc2.getTextValue());
        }
    }

    @Test
    void testLocationTEXTMiddle() throws Exception {
        XmlObject m_xo = obj(Common.XML_TEXT_MIDDLE);

        try (XmlCursor xc1 = m_xo.newCursor();
            XmlCursor xc2 = m_xo.newCursor();
            XmlCursor xc3 = m_xo.newCursor()) {
            //	 while(xc2.currentTokenType() != TokenType.ENDDOC)
            //	{
            //    System.out.println(xc2.currentTokenType());
            //    xc2.toNextToken();
            // }

            // moving cursor to right locations. one is in middle of mixed content.
            // the others is in middle of text of first node and last node

            toNextTokenOfType(xc1, TokenType.TEXT);
            toNextTokenOfType(xc2, TokenType.TEXT);
            toNextTokenOfType(xc3, TokenType.START);
            toNextTokenOfType(xc2, TokenType.TEXT);
            xc1.toNextChar(4);
            xc2.toNextChar(5);
            xc3.toEndToken();
            xc3.toPrevToken();
            xc3.toPrevChar(3);

            //comparing positions
            assertEquals(-1, xc2.comparePosition(xc3));
            assertTrue(xc2.isRightOf(xc1));
            assertTrue(xc1.isInSameDocument(xc2));
            assertFalse(xc2.isAtSamePositionAs(xc3));

            //moving cursors
            xc3.toPrevChar(2);
            xc2.toNextChar(1);

            //comparing position once again
            assertEquals(-1, xc2.comparePosition(xc3));
            assertTrue(xc2.isRightOf(xc1));
            assertTrue(xc1.isInSameDocument(xc2));
            assertFalse(xc2.isAtSamePositionAs(xc3));

            //moving and bringing them to identical positions
            xc3.toPrevToken();
            xc2.toNextChar(2);
            assertTrue(xc2.isAtSamePositionAs(xc3));
        }
    }

    @Test
    void testXmlObjectUsingCursor() throws Exception {
        PurchaseOrderDocument pod = PurchaseOrderDocument.Factory.parse(
                 JarUtil.getResourceFromJar(Common.TRANXML_FILE_XMLCURSOR_PO));

        try (XmlCursor xc1 = pod.newCursor();
            XmlCursor xc2 = pod.newCursor();
            XmlCursor xc3 = pod.newCursor()) {
            //moving cursor location so that it comes to zip under shipto

            toNextTokenOfType(xc1, TokenType.START);
            toNextTokenOfType(xc1, TokenType.START);
            toNextTokenOfType(xc2, TokenType.START);
            toNextTokenOfType(xc2, TokenType.START);
            toNextTokenOfType(xc3, TokenType.START);
            toNextTokenOfType(xc3, TokenType.START);

            xc1.toEndToken();
            xc2.toEndToken();
            xc3.toEndToken();

            toPrevTokenOfType(xc1, TokenType.TEXT);
            toPrevTokenOfType(xc1, TokenType.TEXT);
            toPrevTokenOfType(xc2, TokenType.TEXT);
            toPrevTokenOfType(xc2, TokenType.TEXT);
            toPrevTokenOfType(xc3, TokenType.TEXT);
            toPrevTokenOfType(xc3, TokenType.TEXT);
            //all cursors are now at: 90952
            assertEquals(xc2.getChars(), xc3.getChars(), xc1.getChars());
            //at 52
            xc2.toNextChar(3);
            //after 90952
            xc3.toNextChar(5);
            assertFalse(xc2.isAtSamePositionAs(xc3));
            assertFalse(xc3.isAtSamePositionAs(xc1));


            //setting zip value through the object .
            // once the set occurs comparing postions of cursors.
            PurchaseOrderType pt = pod.getPurchaseOrder();
            USAddress usa = pt.getShipTo();
            usa.setZip(new BigDecimal(500));

            assertEquals(500, usa.getZip().intValue());
             //Any cursors in the value of an Element/attr should be positioned
            // at the end of the elem/attr after the strong setter
            assertTrue(xc2.isAtSamePositionAs(xc3));
            assertTrue(xc3.isAtSamePositionAs(xc1));

            assertEquals(TokenType.END, xc1.currentTokenType());


            // inserting an element through the cursor under zip and then doing
            // a set of a valid value through object..

            xc1.insertElementWithText("foo", "text");
            toPrevTokenOfType(xc1, TokenType.START);
            toPrevTokenOfType(xc1, TokenType.START);
            //System.out.println("here" + xc1.getTextValue());

            toNextTokenOfType(xc1, TokenType.START);

            xc1.toNextChar(2);
            usa.setZip(new BigDecimal(90852));

            assertTrue(xc2.isAtSamePositionAs(xc3));
            assertTrue(xc3.isAtSamePositionAs(xc1));
            //cursors at the end of element
            xc1.toPrevToken();
            //assertEquals(5,xc1.toPrevChar(5));
            assertEquals("90852", xc1.getChars());
        }
    }


    private static class Bookmark0 extends XmlCursor.XmlBookmark {
        public String text;

        Bookmark0(String text) {
            this.text = text;
        }
    }
}