/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/



#ifndef _HIERARCHYPROVIDER_HXX
#define _HIERARCHYPROVIDER_HXX

#include <hash_map>
#include <ucbhelper/providerhelper.hxx>
#include <com/sun/star/lang/XInitialization.hpp>

namespace com { namespace sun { namespace star {
    namespace container {
        class XHierarchicalNameAccess;
    }
    namespace util {
        class XOfficeInstallationDirectories;
    }
} } }

namespace hierarchy_ucp {

//=========================================================================

#define HIERARCHY_CONTENT_PROVIDER_SERVICE_NAME \
				"com.sun.star.ucb.HierarchyContentProvider"
#define HIERARCHY_CONTENT_PROVIDER_SERVICE_NAME_LENGTH	41

#define HIERARCHY_URL_SCHEME \
				"vnd.sun.star.hier"
#define HIERARCHY_URL_SCHEME_LENGTH	17

#define HIERARCHY_FOLDER_CONTENT_TYPE \
				"application/" HIERARCHY_URL_SCHEME "-folder"
#define HIERARCHY_LINK_CONTENT_TYPE \
				"application/" HIERARCHY_URL_SCHEME "-link"

//=========================================================================

struct ConfigProviderMapEntry
{
    com::sun::star::uno::Reference<
        com::sun::star::lang::XMultiServiceFactory > xConfigProvider;
    com::sun::star::uno::Reference<
        com::sun::star::container::XHierarchicalNameAccess > xRootReadAccess;
    bool bTriedToGetRootReadAccess;  // #82494#

    ConfigProviderMapEntry() : bTriedToGetRootReadAccess( false ) {}
};

struct equalString
{
    bool operator()(
        const rtl::OUString& rKey1, const rtl::OUString& rKey2 ) const
    {
        return !!( rKey1 == rKey2 );
    }
};

struct hashString
{
    size_t operator()( const rtl::OUString & rName ) const
    {
        return rName.hashCode();
    }
};

typedef std::hash_map
<
    rtl::OUString,  // servcie specifier
    ConfigProviderMapEntry,
    hashString,
    equalString
>
ConfigProviderMap;

//=========================================================================

class HierarchyContentProvider : public ::ucbhelper::ContentProviderImplHelper,
								 public com::sun::star::lang::XInitialization
{
    ConfigProviderMap   m_aConfigProviderMap;
    com::sun::star::uno::Reference<
        com::sun::star::util::XOfficeInstallationDirectories > m_xOfficeInstDirs;

public:
	HierarchyContentProvider(
				const com::sun::star::uno::Reference<
					com::sun::star::lang::XMultiServiceFactory >& rXSMgr );
	virtual ~HierarchyContentProvider();

	// XInterface
	XINTERFACE_DECL()

	// XTypeProvider
	XTYPEPROVIDER_DECL()

    // XServiceInfo
	XSERVICEINFO_DECL()

	// XContentProvider
	virtual com::sun::star::uno::Reference<
				com::sun::star::ucb::XContent > SAL_CALL
	queryContent( const com::sun::star::uno::Reference<
					com::sun::star::ucb::XContentIdentifier >& Identifier )
		throw( com::sun::star::ucb::IllegalIdentifierException,
			   com::sun::star::uno::RuntimeException );

	// XInitialization
    virtual void SAL_CALL
	initialize( const ::com::sun::star::uno::Sequence<
						::com::sun::star::uno::Any >& aArguments )
		throw( ::com::sun::star::uno::Exception,
			   ::com::sun::star::uno::RuntimeException );

	// Non-Interface methods
	com::sun::star::uno::Reference<
		com::sun::star::lang::XMultiServiceFactory >
    getConfigProvider( const rtl::OUString & rServiceSpecifier );
	com::sun::star::uno::Reference<
		com::sun::star::container::XHierarchicalNameAccess >
    getRootConfigReadNameAccess( const rtl::OUString & rServiceSpecifier );

    // Note: may retrun an empty reference.
    com::sun::star::uno::Reference<
        com::sun::star::util::XOfficeInstallationDirectories >
    getOfficeInstallationDirectories();
};

} // namespace hierarchy_ucp

#endif /* !_HIERARCHYPROVIDER_HXX */