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/* WinRT Windows.System.Profile.SystemManufacturers Implementation
 *
 * Copyright (C) 2022 Mohamad Al-Jaf
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include "initguid.h"
#include "private.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(smbios);

static const char *debugstr_hstring( HSTRING hstr )
{
    const WCHAR *str;
    UINT32 len;
    if (hstr && !((ULONG_PTR)hstr >> 16)) return "(invalid)";
    str = WindowsGetStringRawBuffer(hstr, &len);
    return wine_dbgstr_wn(str, len);
}

struct smbios_statics
{
    IActivationFactory IActivationFactory_iface;
    LONG ref;
};

static inline struct smbios_statics *impl_from_IActivationFactory( IActivationFactory *iface )
{
    return CONTAINING_RECORD( iface, struct smbios_statics, IActivationFactory_iface );
}

static HRESULT WINAPI factory_QueryInterface( IActivationFactory *iface, REFIID iid, void **out )
{
    struct smbios_statics *impl = impl_from_IActivationFactory( iface );

    TRACE( "iface %p, iid %s, out %p.\n", iface, debugstr_guid( iid ), out );

    if (IsEqualGUID( iid, &IID_IUnknown ) ||
        IsEqualGUID( iid, &IID_IInspectable ) ||
        IsEqualGUID( iid, &IID_IAgileObject ) ||
        IsEqualGUID( iid, &IID_IActivationFactory ))
    {
        *out = &impl->IActivationFactory_iface;
        IInspectable_AddRef( *out );
        return S_OK;
    }

    FIXME( "%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid( iid ) );
    *out = NULL;
    return E_NOINTERFACE;
}

static ULONG WINAPI factory_AddRef( IActivationFactory *iface )
{
    struct smbios_statics *impl = impl_from_IActivationFactory( iface );
    ULONG ref = InterlockedIncrement( &impl->ref );
    TRACE( "iface %p, ref %lu.\n", iface, ref );
    return ref;
}

static ULONG WINAPI factory_Release( IActivationFactory *iface )
{
    struct smbios_statics *impl = impl_from_IActivationFactory( iface );
    ULONG ref = InterlockedDecrement( &impl->ref );
    TRACE( "iface %p, ref %lu.\n", iface, ref );
    return ref;
}

static HRESULT WINAPI factory_GetIids( IActivationFactory *iface, ULONG *iid_count, IID **iids )
{
    FIXME( "iface %p, iid_count %p, iids %p stub!\n", iface, iid_count, iids );
    return E_NOTIMPL;
}

static HRESULT WINAPI factory_GetRuntimeClassName( IActivationFactory *iface, HSTRING *class_name )
{
    FIXME( "iface %p, class_name %p stub!\n", iface, class_name );
    return E_NOTIMPL;
}

static HRESULT WINAPI factory_GetTrustLevel( IActivationFactory *iface, TrustLevel *trust_level )
{
    FIXME( "iface %p, trust_level %p stub!\n", iface, trust_level );
    return E_NOTIMPL;
}

static HRESULT WINAPI factory_ActivateInstance( IActivationFactory *iface, IInspectable **instance )
{
    FIXME( "iface %p, instance %p stub!\n", iface, instance );
    return E_NOTIMPL;
}

static const struct IActivationFactoryVtbl factory_vtbl =
{
    factory_QueryInterface,
    factory_AddRef,
    factory_Release,
    /* IInspectable methods */
    factory_GetIids,
    factory_GetRuntimeClassName,
    factory_GetTrustLevel,
    /* IActivationFactory methods */
    factory_ActivateInstance,
};

static struct smbios_statics smbios_statics =
{
    {&factory_vtbl},
    1,
};

static IActivationFactory *smbios_factory = &smbios_statics.IActivationFactory_iface;

HRESULT WINAPI DllGetClassObject( REFCLSID clsid, REFIID riid, void **out )
{
    FIXME( "clsid %s, riid %s, out %p stub!\n", debugstr_guid(clsid), debugstr_guid(riid), out );
    return CLASS_E_CLASSNOTAVAILABLE;
}

HRESULT WINAPI DllGetActivationFactory( HSTRING classid, IActivationFactory **factory )
{
    const WCHAR *name = WindowsGetStringRawBuffer( classid, NULL );

    TRACE( "classid %s, factory %p.\n", debugstr_hstring(classid), factory );

    *factory = NULL;

    if (!wcscmp( name, RuntimeClass_Windows_System_Profile_SystemManufacturers_SmbiosInformation ))
        IActivationFactory_QueryInterface( smbios_factory, &IID_IActivationFactory, (void **)factory );

    if (*factory) return S_OK;
    return CLASS_E_CLASSNOTAVAILABLE;
}