/*

 * 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 _LOG4CXX_NT_EVENT_LOG_APPENDER_HEADER_

#define _LOG4CXX_NT_EVENT_LOG_APPENDER_HEADER_

#include <log4cxx/appenderskeleton.h>

namespace LOG4CXX_NS

{

namespace nt

{

/**

 * Appends log events to NT EventLog.

 */

class LOG4CXX_EXPORT NTEventLogAppender : public AppenderSkeleton

{

  public:

    DECLARE_LOG4CXX_OBJECT(NTEventLogAppender)

    BEGIN_LOG4CXX_CAST_MAP()

    LOG4CXX_CAST_ENTRY(NTEventLogAppender)

    LOG4CXX_CAST_ENTRY_CHAIN(AppenderSkeleton)

    END_LOG4CXX_CAST_MAP()

    NTEventLogAppender();

    NTEventLogAppender(const LogString& server, const LogString& log,

      const LogString& source, const LayoutPtr& layout);

    virtual ~NTEventLogAppender();

    /**

    \copybrief AppenderSkeleton::activateOptions()

    Calls <a href="https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-registereventsourcew">RegisterEventSource</a>.

    */

    void activateOptions(helpers::Pool& p) override;

    void close() override;

    /**

    \copybrief AppenderSkeleton::setOption()

    Supported options | Supported values | Default value |

    -------------- | ---------------- | --------------- |

    Server | (\ref winapi "1") | NULL |

    Source | (\ref winapi "1") | - |

    Log | (\ref eventLog "2") | Application |

    \anchor winapi (1) Passed to the Win32 API method <a href="https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-registereventsourcew">RegisterEventSource</a>.

    \anchor eventLog (2) An event log name.

    \sa AppenderSkeleton::setOption()

    */

    void setOption(const LogString& option, const LogString& value) override;

    /**

     * The SocketAppender does not use a layout. Hence, this method

     * returns <code>false</code>.

     *

     */

    bool requiresLayout() const override

    {

      return true;

    }

    void setSource(const LogString& source);

    const LogString& getSource() const;

    void setLog(const LogString& log);

    const LogString& getLog() const;

    void setServer(const LogString& server);

    const LogString& getServer() const;

  protected:

    //

    //   these typedef are proxies for the real Win32 definitions

    //     and need to be cast to the global definitions before

    //     use with a Win32 API call

    typedef void SID;

    typedef void* HANDLE;

    void append(const spi::LoggingEventPtr& event, helpers::Pool& p) override;

    static unsigned short getEventType(const spi::LoggingEventPtr& event);

    static unsigned short getEventCategory(const spi::LoggingEventPtr& event);

    /*

     * Add this source with appropriate configuration keys to the registry.

     */

    void addRegistryInfo();

    struct NTEventLogAppenderPrivate;

    static LogString getErrorString(const LogString& function);

  private:

    NTEventLogAppender(const NTEventLogAppender&);

    NTEventLogAppender& operator=(const NTEventLogAppender&);

}; // class NTEventLogAppender

LOG4CXX_PTR_DEF(NTEventLogAppender);

}  // namespace nt

} // namespace log4cxx

#endif //_LOG4CXX_NT_EVENT_LOG_APPENDER_HEADER_