/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <sal/types.h>
#include "SDriver.hxx"
#include <cppuhelper/factory.hxx>
#include <osl/diagnose.h>
#include <uno/lbnames.h>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>

using namespace connectivity::skeleton;
using ::rtl::OUString;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::registry::XRegistryKey;
using ::com::sun::star::lang::XSingleServiceFactory;
using ::com::sun::star::lang::XMultiServiceFactory;

typedef Reference< XSingleServiceFactory > (SAL_CALL *createFactoryFunc)
        (
            const Reference< XMultiServiceFactory > & rServiceManager,
            const OUString & rComponentName,
            ::cppu::ComponentInstantiation pCreateFunction,
            const Sequence< OUString > & rServiceNames,
            rtl_ModuleCount*
        );


// The required C-Api must be provided!
// It contains of 3 special functions that have to be exported.


void REGISTER_PROVIDER(
        const OUString& aServiceImplName,
        const Sequence< OUString>& Services,
        const Reference< ::com::sun::star::registry::XRegistryKey > & xKey)
{
    OUString aMainKeyName("/");
    aMainKeyName += aServiceImplName;
    aMainKeyName += "/UNO/SERVICES";

    Reference< ::com::sun::star::registry::XRegistryKey >  xNewKey( xKey->createKey(aMainKeyName) );
    OSL_ENSURE(xNewKey.is(), "SKELETON::component_writeInfo : could not create a registry key !");

    for (sal_uInt32 i=0; i<Services.getLength(); ++i)
        xNewKey->createKey(Services[i]);
}


struct ProviderRequest
{
    Reference< XSingleServiceFactory > xRet;
    Reference< XMultiServiceFactory > const xServiceManager;
    OUString const sImplementationName;

    ProviderRequest(
        void* pServiceManager,
        char const* pImplementationName
    )
    : xServiceManager(reinterpret_cast<XMultiServiceFactory*>(pServiceManager))
    , sImplementationName(OUString::createFromAscii(pImplementationName))
    {
    }

    inline
    sal_Bool CREATE_PROVIDER(
                const OUString& Implname,
                const Sequence< OUString > & Services,
                ::cppu::ComponentInstantiation Factory,
                createFactoryFunc creator
            )
    {
        if (!xRet.is() && (Implname == sImplementationName))
        try
        {
            xRet = creator( xServiceManager, sImplementationName,Factory, Services,0);
        }
        catch(...)
        {
        }
        return xRet.is();
    }

    void* getProvider() const { return xRet.get(); }
};


extern "C" SAL_DLLPUBLIC_EXPORT void* SAL_CALL component_getFactory(
                    const char* pImplementationName,
                    void* pServiceManager,
                    void* pRegistryKey)
{
    void* pRet = 0;
    if (pServiceManager)
    {
        ProviderRequest aReq(pServiceManager,pImplementationName);

        aReq.CREATE_PROVIDER(
            SkeletonDriver::getImplementationName_Static(),
            SkeletonDriver::getSupportedServiceNames_Static(),
            SkeletonDriver_CreateInstance, ::cppu::createSingleFactory)
        ;

        if(aReq.xRet.is())
            aReq.xRet->acquire();

        pRet = aReq.getProvider();
    }

    return pRet;
};

extern "C" SAL_DLLPUBLIC_EXPORT void SAL_CALL
component_getImplementationEnvironment(
    char const ** ppEnvTypeName, uno_Environment **)
{
    *ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}

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