/* -*- 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 .
 */

#pragma once

#include <com/sun/star/sdbc/XDriver.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/frame/XTerminateListener.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <cppuhelper/compbase.hxx>
#include <osl/module.h>

// the address book driver's version
#define MACAB_DRIVER_VERSION        "0.1"
#define MACAB_DRIVER_VERSION_MAJOR  0
#define MACAB_DRIVER_VERSION_MINOR  1

namespace connectivity::macab
{
    class MacabConnection;
    class MacabDriver;

    typedef void*   (SAL_CALL * ConnectionFactoryFunction)( void* _pDriver );

    typedef std::vector< css::uno::WeakReferenceHelper > OWeakRefArray;


    // = MacabImplModule

    class MacabImplModule
    {
    private:
        /// Did we already attempt to load the module and to retrieve the symbols?
        bool    m_bAttemptedLoadModule;
        oslModule                   m_hConnectorModule;
        ConnectionFactoryFunction   m_pConnectionFactoryFunc;

    public:
        MacabImplModule();

        /** determines whether there is a mac OS present in the environment
        */
        bool isMacOSPresent();

        /** initializes the implementation module.

            @throws css::uno::RuntimeException
                if the module could be loaded, but required symbols are missing
            @throws css::sdbc::SQLException
                if no Mac OS was found at all
        */
        void init();

        /** shuts down the impl module
        */
        void shutdown();

        /** creates a new connection
            @precond
                <member>init</member> has been called before
            @throws css::uno::RuntimeException
                if no connection object could be created (which is a severe error, normally impossible)
        */
        MacabConnection*  createConnection( MacabDriver* _pDriver ) const;

    private:
        /** loads the implementation module and retrieves the needed symbols

            Save against being called multiple times.

            @return <TRUE/> if the module could be loaded successfully.

            @throws css::uno::RuntimeException
                if the module could be loaded, but required symbols are missing
        */
        bool    impl_loadModule();

        /** unloads the implementation module, and resets all function pointers to <NULL/>
            @precond m_hConnectorModule is not <NULL/>
        */
        void    impl_unloadModule();
    };


    // = MacabDriver

    typedef ::cppu::WeakComponentImplHelper<   css::sdbc::XDriver,
                                               css::lang::XServiceInfo,
                                               css::frame::XTerminateListener > MacabDriver_BASE;
    class MacabDriver : public MacabDriver_BASE
    {
    protected:
        ::osl::Mutex                m_aMutex;           // mutex is need to control member access
        OWeakRefArray               m_xConnections;     // vector containing a list of all the
                                                        //  MacabConnection objects for this Driver
        css::uno::Reference< css::uno::XComponentContext >
                                    m_xContext;       // the multi-service factory
        MacabImplModule             m_aImplModule;

    public:
        css::uno::Reference< css::uno::XComponentContext > const &
        getComponentContext() const { return m_xContext; }

        /** returns the path of our configuration settings
        */
        static OUString  impl_getConfigurationSettingsPath();

        explicit MacabDriver(const css::uno::Reference< css::uno::XComponentContext >& _rxContext);
    protected:

        // OComponentHelper
        virtual void SAL_CALL disposing() override;

        // 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;

        // XDriver
        virtual css::uno::Reference< css::sdbc::XConnection > SAL_CALL connect( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
        virtual sal_Bool SAL_CALL acceptsURL( const OUString& url ) override;
        virtual css::uno::Sequence< css::sdbc::DriverPropertyInfo > SAL_CALL getPropertyInfo( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info ) override;
        virtual sal_Int32 SAL_CALL getMajorVersion() override;
        virtual sal_Int32 SAL_CALL getMinorVersion() override;

        // XTerminateListener
        virtual void SAL_CALL queryTermination( const css::lang::EventObject& Event ) override;
        virtual void SAL_CALL notifyTermination( const css::lang::EventObject& Event ) override;

        // XEventListener
        virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;

    private:
        /** shuts down the library which contains the real implementations

            This method is safe against being called multiple times

            @precond our mutex is locked
        */
        void impl_shutdownImplementationModule();
    };

}

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