/*
 * Version: MPL 1.1 / GPLv3+ / LGPLv3+
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Initial Developer of the Original Code is
 *       Miklos Vajna <vmiklos@suse.cz> (SUSE, Inc.)
 * Portions created by the Initial Developer are Copyright (C) 2012 the
 * Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
 * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
 * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
 * instead of those above.
 */

#include <com/sun/star/container/XContentEnumerationAccess.hpp>
#include <com/sun/star/style/XStyleFamiliesSupplier.hpp>
#include <com/sun/star/text/XTextDocument.hpp>
#include <com/sun/star/text/XTextRange.hpp>

#include <test/bootstrapfixture.hxx>
#include <unotest/macros_test.hxx>
#include <rtl/ustrbuf.hxx>

#include <unotxdoc.hxx>
#include <docsh.hxx>
#include <doc.hxx>
#include <rootfrm.hxx>

#include <libxml/xmlwriter.h>
#include <libxml/xpath.h>

using namespace com::sun::star;

/// Base class for filter tests loading or roundtriping a document, then asserting the document model.
class SwModelTestBase : public test::BootstrapFixture, public unotest::MacrosTest
{
public:
    SwModelTestBase()
        : mpXmlBuffer(0)
    {
    }

    ~SwModelTestBase()
    {
        if (mpXmlBuffer)
            xmlBufferFree(mpXmlBuffer);
    }

    virtual void setUp()
    {
        test::BootstrapFixture::setUp();

        mxDesktop.set(getMultiServiceFactory()->createInstance("com.sun.star.frame.Desktop"), uno::UNO_QUERY);
        CPPUNIT_ASSERT(mxDesktop.is());
    }

    virtual void tearDown()
    {
        if (mxComponent.is())
            mxComponent->dispose();

        test::BootstrapFixture::tearDown();
    }

private:
    void dumpLayout()
    {
        // create the xml writer
        mpXmlBuffer = xmlBufferCreate();
        xmlTextWriterPtr pXmlWriter = xmlNewTextWriterMemory(mpXmlBuffer, 0);
        xmlTextWriterStartDocument(pXmlWriter, NULL, NULL, NULL);

        // create the dump
        SwXTextDocument* pTxtDoc = dynamic_cast<SwXTextDocument *>(mxComponent.get());
        SwDoc* pDoc = pTxtDoc->GetDocShell()->GetDoc();
        SwRootFrm* pLayout = pDoc->GetCurrentLayout();
        pLayout->dumpAsXml(pXmlWriter);

        // delete xml writer
        xmlTextWriterEndDocument(pXmlWriter);
        xmlFreeTextWriter(pXmlWriter);
    }


protected:
    /// Get the length of the whole document.
    int getLength()
    {
        uno::Reference<text::XTextDocument> xTextDocument(mxComponent, uno::UNO_QUERY);
        uno::Reference<container::XEnumerationAccess> xParaEnumAccess(xTextDocument->getText(), uno::UNO_QUERY);
        uno::Reference<container::XEnumeration> xParaEnum = xParaEnumAccess->createEnumeration();
        OUStringBuffer aBuf;
        while (xParaEnum->hasMoreElements())
        {
            uno::Reference<container::XEnumerationAccess> xRangeEnumAccess(xParaEnum->nextElement(), uno::UNO_QUERY);
            uno::Reference<container::XEnumeration> xRangeEnum = xRangeEnumAccess->createEnumeration();
            while (xRangeEnum->hasMoreElements())
            {
                uno::Reference<text::XTextRange> xRange(xRangeEnum->nextElement(), uno::UNO_QUERY);
                aBuf.append(xRange->getString());
            }
        }
        return aBuf.getLength();
    }

    /// Get a family of styles, see com.sun.star.style.StyleFamilies for possible values.
    uno::Reference<container::XNameAccess> getStyles(OUString aFamily)
    {
        uno::Reference<style::XStyleFamiliesSupplier> xStyleFamiliesSupplier(mxComponent, uno::UNO_QUERY);
        uno::Reference<container::XNameAccess> xStyleFamilies(xStyleFamiliesSupplier->getStyleFamilies(), uno::UNO_QUERY);
        uno::Reference<container::XNameAccess> xStyleFamily(xStyleFamilies->getByName(aFamily), uno::UNO_QUERY);
        return xStyleFamily;
    }

    /**
     * Extract a value from the layout dump using an XPath expression and an attribute name.
     *
     * If the attribute is omitted, the text of the node is returned.
     */
    OUString parseDump(rtl::OString aXPath, rtl::OString aAttribute = OString())
    {
        if (!mpXmlBuffer)
            dumpLayout();

        xmlDocPtr pXmlDoc = xmlParseMemory((const char*)xmlBufferContent(mpXmlBuffer), xmlBufferLength(mpXmlBuffer));;

        xmlXPathContextPtr pXmlXpathCtx = xmlXPathNewContext(pXmlDoc);
        xmlXPathObjectPtr pXmlXpathObj = xmlXPathEvalExpression(BAD_CAST(aXPath.getStr()), pXmlXpathCtx);
        xmlNodeSetPtr pXmlNodes = pXmlXpathObj->nodesetval;
        CPPUNIT_ASSERT_EQUAL(1, xmlXPathNodeSetGetLength(pXmlNodes));
        xmlNodePtr pXmlNode = pXmlNodes->nodeTab[0];
        OUString aRet;
        if (aAttribute.getLength())
            aRet = OUString::createFromAscii((const char*)xmlGetProp(pXmlNode, BAD_CAST(aAttribute.getStr())));
        else
            aRet = OUString::createFromAscii((const char*)XML_GET_CONTENT(pXmlNode));

        xmlFreeDoc(pXmlDoc);

        return aRet;
    }

    template< typename T >
    T getProperty( uno::Any obj, const OUString& name ) const
    {
        uno::Reference< beans::XPropertySet > properties( obj, uno::UNO_QUERY );
        T data = T();
        properties->getPropertyValue( name ) >>= data;
        return data;
    }

    template< typename T >
    T getProperty( uno::Reference< uno::XInterface > obj, const OUString& name ) const
    {
        uno::Reference< beans::XPropertySet > properties( obj, uno::UNO_QUERY );
        T data = T();
        properties->getPropertyValue( name ) >>= data;
        return data;
    }

    /// Get number of paragraphs of the document.
    int getParagraphs()
    {
        uno::Reference<text::XTextDocument> xTextDocument(mxComponent, uno::UNO_QUERY);
        uno::Reference<container::XEnumerationAccess> xParaEnumAccess(xTextDocument->getText(), uno::UNO_QUERY);
        uno::Reference<container::XEnumeration> xParaEnum = xParaEnumAccess->createEnumeration();
        int nRet = 0;
        while (xParaEnum->hasMoreElements())
        {
            xParaEnum->nextElement();
            nRet++;
        }
        return nRet;
    }

    // Get paragraph (counted from 1), optionally check it contains the given text.
    uno::Reference< text::XTextRange > getParagraph( int number, OUString content = OUString() ) const
    {
        uno::Reference<text::XTextDocument> textDocument(mxComponent, uno::UNO_QUERY);
        uno::Reference<container::XEnumerationAccess> paraEnumAccess(textDocument->getText(), uno::UNO_QUERY);
        uno::Reference<container::XEnumeration> paraEnum = paraEnumAccess->createEnumeration();
        for( int i = 1;
             i < number;
             ++i )
            paraEnum->nextElement();
        uno::Reference< text::XTextRange > paragraph( paraEnum->nextElement(), uno::UNO_QUERY );
        if( !content.isEmpty())
            CPPUNIT_ASSERT_EQUAL( content, paragraph->getString());
        return paragraph;
    }

    /// Get run (counted from 1) of a paragraph, optionally check it contains the given text.
    uno::Reference<text::XTextRange> getRun(uno::Reference<text::XTextRange> xParagraph, int number, OUString content = OUString()) const
    {
        uno::Reference<container::XEnumerationAccess> xRunEnumAccess(xParagraph, uno::UNO_QUERY);
        uno::Reference<container::XEnumeration> xRunEnum = xRunEnumAccess->createEnumeration();
        for (int i = 1; i < number; ++i)
            xRunEnum->nextElement();
        uno::Reference<text::XTextRange> xRun(xRunEnum->nextElement(), uno::UNO_QUERY);
        if( !content.isEmpty())
            CPPUNIT_ASSERT_EQUAL( content, xRun->getString());
        return xRun;
    }

    /// Get math formula string of a run.
    OUString getFormula(uno::Reference<text::XTextRange> xRun) const
    {
        uno::Reference<container::XContentEnumerationAccess> xContentEnumAccess(xRun, uno::UNO_QUERY);
        uno::Reference<container::XEnumeration> xContentEnum(xContentEnumAccess->createContentEnumeration(""), uno::UNO_QUERY);
        uno::Reference<beans::XPropertySet> xFormula(xContentEnum->nextElement(), uno::UNO_QUERY);
        return getProperty<OUString>(getProperty< uno::Reference<beans::XPropertySet> >(xFormula, "Model"), "Formula");
    }

    uno::Reference<lang::XComponent> mxComponent;
    xmlBufferPtr mpXmlBuffer;

    template< typename T >
    struct MethodEntry
    {
        const char* pName;
        void (T::*pMethod)();
    };
};

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */