/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   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 .

 */

#include <cppuhelper/implbase.hxx>

#include <cppuhelper/supportsservice.hxx>

#include <com/sun/star/lang/XServiceInfo.hpp>

#include <com/sun/star/lang/XInitialization.hpp>

#include <com/sun/star/rdf/XLiteral.hpp>

#include <com/sun/star/uno/XComponentContext.hpp>

#include <com/sun/star/lang/IllegalArgumentException.hpp>

/// anonymous implementation namespace

namespace {

class CLiteral:

    public ::cppu::WeakImplHelper<

        css::lang::XServiceInfo,

        css::lang::XInitialization,

        css::rdf::XLiteral>

{

public:

    explicit CLiteral();

    // css::lang::XServiceInfo:

    virtual OUString SAL_CALL getImplementationName() override;

    virtual sal_Bool SAL_CALL supportsService(const OUString & ServiceName) override;

    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

    // css::lang::XInitialization:

    virtual void SAL_CALL initialize(const css::uno::Sequence< css::uno::Any > & aArguments) override;

    // css::rdf::XNode:

    virtual OUString SAL_CALL getStringValue() override;

    // css::rdf::XLiteral:

    virtual OUString SAL_CALL getValue() override;

    virtual OUString SAL_CALL getLanguage() override;

    virtual css::uno::Reference< css::rdf::XURI > SAL_CALL getDatatype() override;

private:

    CLiteral(CLiteral const&) = delete;

    CLiteral& operator=(CLiteral const&) = delete;

    OUString m_Value;

    OUString m_Language;

    css::uno::Reference< css::rdf::XURI > m_xDatatype;

};

CLiteral::CLiteral()

{}

// com.sun.star.uno.XServiceInfo:

OUString SAL_CALL CLiteral::getImplementationName()

{

    return u"CLiteral"_ustr;

}

sal_Bool SAL_CALL CLiteral::supportsService(OUString const & serviceName)

{

    return cppu::supportsService(this, serviceName);

}

css::uno::Sequence< OUString > SAL_CALL CLiteral::getSupportedServiceNames()

{

    return { u"com.sun.star.rdf.Literal"_ustr };

}

// css::lang::XInitialization:

void SAL_CALL CLiteral::initialize(const css::uno::Sequence< css::uno::Any > & aArguments)

{

    const sal_Int32 len( aArguments.getLength() );

    if (len < 1 || len > 2) {

            throw css::lang::IllegalArgumentException(

                u"CLiteral::initialize: must give 1 or 2 argument(s)"_ustr, *this, 2);

    }

    OUString arg0;

    if (!(aArguments[0] >>= arg0)) {

        throw css::lang::IllegalArgumentException(

            u"CLiteral::initialize: argument must be string"_ustr, *this, 0);

    }

    //FIXME: what is legal?

    if (!(true)) {

        throw css::lang::IllegalArgumentException(

            u"CLiteral::initialize: argument is not valid literal value"_ustr, *this, 0);

    }

    m_Value = arg0;

    if (len <= 1)

        return;

    OUString arg1;

    css::uno::Reference< css::rdf::XURI > xURI;

    if (aArguments[1] >>= arg1) {

        if (arg1.isEmpty()) {

            throw css::lang::IllegalArgumentException(

                u"CLiteral::initialize: argument is not valid language"_ustr, *this, 1);

        }

        m_Language = arg1;

    } else if (aArguments[1] >>= xURI) {

        if (!xURI.is()) {

            throw css::lang::IllegalArgumentException(

                u"CLiteral::initialize: argument is null"_ustr, *this, 1);

        }

        m_xDatatype = std::move(xURI);

    } else {

        throw css::lang::IllegalArgumentException(

            u"CLiteral::initialize: argument must be string or URI"_ustr, *this, 1);

    }

}

// css::rdf::XNode:

OUString SAL_CALL CLiteral::getStringValue()

{

    if (!m_Language.isEmpty()) {

        return m_Value + "@" + m_Language;

    } else if (m_xDatatype.is()) {

        return m_Value + "^^" +  m_xDatatype->getStringValue();

    } else {

        return m_Value;

    }

}

// css::rdf::XLiteral:

OUString SAL_CALL CLiteral::getValue()

{

    return m_Value;

}

OUString SAL_CALL CLiteral::getLanguage()

{

    return m_Language;

}

css::uno::Reference< css::rdf::XURI > SAL_CALL CLiteral::getDatatype()

{

    return m_xDatatype;

}

} // closing anonymous implementation namespace

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*

unoxml_CLiteral_get_implementation(

    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)

{

    return cppu::acquire(new CLiteral());

}

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