/* ====================================================================
   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.poi.xslf.usermodel;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.sl.usermodel.BaseTestSlideShow;
import org.apache.poi.sl.usermodel.SlideShow;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.openxmlformats.schemas.presentationml.x2006.main.CTNotesMasterIdListEntry;
import org.openxmlformats.schemas.presentationml.x2006.main.CTSlideIdListEntry;
import org.openxmlformats.schemas.presentationml.x2006.main.CTSlideMasterIdListEntry;

class TestXMLSlideShow extends BaseTestSlideShow<XSLFShape, XSLFTextParagraph> {
    private OPCPackage pack;

    @Override
    public XMLSlideShow createSlideShow() {
        return new XMLSlideShow();
    }

    @BeforeEach
    void setUp() throws Exception {
        pack = OPCPackage.open(slTests.openResourceAsStream("sample.pptx"));
    }

    @AfterEach
    void tearDown() {
        pack.revert();
    }

    @Test
    void testContainsMainContentType() throws Exception {
        boolean found = false;
        for (PackagePart part : pack.getParts()) {
            if (part.getContentType().equals(XSLFRelation.MAIN.getContentType())) {
                found = true;
            }
        }
        assertTrue(found);
    }

    @Test
    void testOpen() throws Exception {
        // With the finalised uri, should be fine
        XMLSlideShow xml = new XMLSlideShow(pack);
        // Check the core
        assertNotNull(xml.getCTPresentation());

        // Check it has some slides
        assertFalse(xml.getSlides().isEmpty());
        assertFalse(xml.getSlideMasters().isEmpty());

        xml.close();
    }

    @SuppressWarnings("deprecation")
    @Test
    void testSlideBasics() throws IOException {
        XMLSlideShow xml = new XMLSlideShow(pack);

        // Should have 1 master
        assertEquals(1, xml.getSlideMasters().size());

        // Should have two sheets
        assertEquals(2, xml.getSlides().size());

        // Check they're as expected
        CTSlideIdListEntry[] slides = xml.getCTPresentation().getSldIdLst().getSldIdArray();

        assertEquals(256, slides[0].getId());
        assertEquals(257, slides[1].getId());
        assertEquals("rId2", slides[0].getId2());
        assertEquals("rId3", slides[1].getId2());

        // Now get those objects
        assertNotNull(xml.getSlides().get(0));
        assertNotNull(xml.getSlides().get(1));

        // And check they have notes as expected
        assertNotNull(xml.getSlides().get(0).getNotes());
        assertNotNull(xml.getSlides().get(1).getNotes());

        // Next up look for the slide master
        CTSlideMasterIdListEntry[] masters = xml.getCTPresentation().getSldMasterIdLst().getSldMasterIdArray();

        // see SlideAtom.USES_MASTER_SLIDE_ID
        assertEquals(0x80000000L, masters[0].getId());
        assertEquals("rId1", masters[0].getId2());
        assertNotNull(xml.getSlideMasters().get(0));

        // Finally look for the notes master
        CTNotesMasterIdListEntry notesMaster =
            xml.getCTPresentation().getNotesMasterIdLst().getNotesMasterId();
        assertNotNull(notesMaster);

        assertNotNull(xml.getNotesMaster());

        xml.close();
    }

    @Test
    void testMetadataBasics() throws IOException {
        XMLSlideShow xml = new XMLSlideShow(pack);

        assertNotNull(xml.getProperties().getCoreProperties());
        assertNotNull(xml.getProperties().getExtendedProperties());

        assertEquals("Microsoft Office PowerPoint", xml.getProperties().getExtendedProperties().getUnderlyingProperties().getApplication());
        assertEquals(0, xml.getProperties().getExtendedProperties().getUnderlyingProperties().getCharacters());
        assertEquals(0, xml.getProperties().getExtendedProperties().getUnderlyingProperties().getLines());

        assertNull(xml.getProperties().getCoreProperties().getTitle());
        assertFalse(xml.getProperties().getCoreProperties().getUnderlyingProperties().getSubjectProperty().isPresent());

        xml.close();
    }

    @Test
    void testComments() throws Exception {
        // Default sample file has none
        XMLSlideShow xml = new XMLSlideShow(pack);

        assertNull(xml.getCommentAuthors());

        for (XSLFSlide slide : xml.getSlides()) {
            assertTrue(slide.getComments().isEmpty());
        }

        // Try another with comments
        XMLSlideShow xmlComments = new XMLSlideShow(slTests.openResourceAsStream("45545_Comment.pptx"));

        // Has one author
        assertNotNull(xmlComments.getCommentAuthors());
        assertEquals(1, xmlComments.getCommentAuthors().getCTCommentAuthorsList().sizeOfCmAuthorArray());
        assertEquals("XPVMWARE01", xmlComments.getCommentAuthors().getAuthorById(0).getName());

        // First two slides have comments
        int i = -1;
        for (XSLFSlide slide : xmlComments.getSlides()) {
            i++;

            if (i == 0) {
                assertNotNull(slide.getCommentsPart());
                assertEquals(1, slide.getCommentsPart().getNumberOfComments());
                assertEquals("testdoc", slide.getCommentsPart().getCommentAt(0).getText());
                assertEquals(0, slide.getCommentsPart().getCommentAt(0).getAuthorId());
            } else if (i == 1) {
                assertNotNull(slide.getComments());
                assertEquals(1, slide.getCommentsPart().getNumberOfComments());
                assertEquals("test phrase", slide.getCommentsPart().getCommentAt(0).getText());
                assertEquals(0, slide.getCommentsPart().getCommentAt(0).getAuthorId());
            } else {
                assertNull(slide.getCommentsPart());
                assertTrue(slide.getComments().isEmpty());
            }
        }

        xmlComments.close();
        xml.close();
    }

    @Override
    public XMLSlideShow reopen(SlideShow<XSLFShape, XSLFTextParagraph> show) throws IOException {
        BufAccessBAOS bos = new BufAccessBAOS();
        show.write(bos);
        return new XMLSlideShow(new ByteArrayInputStream(bos.getBuf()));
    }

    private static class BufAccessBAOS extends ByteArrayOutputStream {
        byte[] getBuf() {
            return buf;
        }
    }
}