/*
 * Implementation of Active Template Library (atl.dll)
 *
 * Copyright 2004 Aric Stewart for CodeWeavers
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdarg.h>
#include <stdio.h>

#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "winuser.h"
#include "wine/debug.h"
#include "objbase.h"
#include "objidl.h"
#include "ole2.h"
#include "atlbase.h"

WINE_DEFAULT_DEBUG_CHANNEL(atl);

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    TRACE("(0x%p, %ld, %p)\n",hinstDLL,fdwReason,lpvReserved);

    if (fdwReason == DLL_PROCESS_ATTACH) DisableThreadLibraryCalls(hinstDLL);
    return TRUE;
}

HRESULT WINAPI AtlModuleInit(_ATL_MODULEA* pM, _ATL_OBJMAP_ENTRYA* p, HINSTANCE h)
{
    INT i;

    FIXME("SEMI-STUB (%p %p %p)\n",pM,p,h);

    memset(pM,0,sizeof(_ATL_MODULEA));
    pM->cbSize = sizeof(_ATL_MODULEA);
    pM->m_hInst = h;
    pM->m_hInstResource = h;
    pM->m_hInstTypeLib = h;
    pM->m_pObjMap = p;
    pM->m_hHeap = GetProcessHeap();

    /* call mains */
    i = 0;
    while (pM->m_pObjMap[i].pclsid != NULL)
    {
        TRACE("Initializing object %i\n",i);
        p[i].pfnObjectMain(TRUE);
        i++;
    }

    return S_OK;
}

HRESULT WINAPI AtlModuleTerm(_ATL_MODULEA* pM)
{
    HeapFree(GetProcessHeap(), 0, pM);
    return S_OK;
}

HRESULT WINAPI AtlModuleRegisterClassObjects(_ATL_MODULEA *pM, DWORD dwClsContext,
                                             DWORD dwFlags)
{
    HRESULT hRes = S_OK;
    int i=0;

    TRACE("(%p %li %li)\n",pM, dwClsContext, dwFlags);

    if (pM == NULL)
        return E_INVALIDARG;

    while(pM->m_pObjMap[i].pclsid != NULL)
    {
        IUnknown* pUnknown;
        _ATL_OBJMAP_ENTRYA *obj = &(pM->m_pObjMap[i]);
        HRESULT rc;

        TRACE("Registering object %i\n",i);
        if (obj->pfnGetClassObject)
        {
            rc = obj->pfnGetClassObject(obj->pfnCreateInstance, &IID_IUnknown,
                                   (LPVOID*)&pUnknown);
            if (SUCCEEDED (rc) )
            {
                CoRegisterClassObject(obj->pclsid, pUnknown, dwClsContext,
                                      dwFlags, &obj->dwRegister);
                if (pUnknown)
                    IUnknown_Release(pUnknown);
            }
        }
        i++;
    }

   return hRes;
}

HRESULT WINAPI AtlInternalQueryInterface(LPVOID this, const _ATL_INTMAP_ENTRY* pEntries,  REFIID iid, LPVOID* ppvObject)
{
    int i = 0;
    HRESULT rc = E_NOINTERFACE;
    TRACE("(%p, %p, %p, %p)\n",this, pEntries, iid, ppvObject);

    if (IsEqualGUID(iid,&IID_IUnknown))
    {
        TRACE("Returning IUnknown\n");
        *ppvObject = this;
        IUnknown_AddRef((IUnknown*)this);
        return S_OK;
    }

    while (pEntries[i].pFunc != 0)
    {
        TRACE("Trying entry %i (%p %li %p)\n",i,pEntries[i].piid,
              pEntries[i].dw, pEntries[i].pFunc);

        if (pEntries[i].piid && IsEqualGUID(iid,pEntries[i].piid))
        {
            TRACE("MATCH\n");
            if (pEntries[i].pFunc == (_ATL_CREATORARGFUNC*)1)
            {
                TRACE("Offset\n");
                *ppvObject = ((LPSTR)this+pEntries[i].dw);
                IUnknown_AddRef((IUnknown*)this);
                rc = S_OK;
            }
            else
            {
                TRACE("Function\n");
                rc = pEntries[i].pFunc(this, iid, ppvObject,0);
            }
            break;
        }
        i++;
    }
    TRACE("Done returning (0x%lx)\n",rc);
    return rc;
}

/***********************************************************************
 *           AtlModuleUpdateRegistryFromResourceD         [ATL.@]
 *
 */
HRESULT WINAPI AtlModuleUpdateRegistryFromResourceD(_ATL_MODULEW* pM, LPCOLESTR lpszRes,
		BOOL bRegister, /* struct _ATL_REGMAP_ENTRY* */ void* pMapEntries, /* IRegistrar* */ void* pReg)
{
    HINSTANCE hInst = pM->m_hInst;
    /* everything inside this function below this point
     * should go into atl71.AtlUpdateRegistryFromResourceD
     */
    WCHAR module_name[MAX_PATH];

    GetModuleFileNameW(hInst, module_name, MAX_PATH);

    FIXME("stub %p (%s), %s, %d, %p, %p\n", hInst, debugstr_w(module_name),
	debugstr_w(lpszRes), bRegister, pMapEntries, pReg);

    return S_OK;
}