/*
 * Copyright 2008 Jacek Caban 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"

#include "wine/debug.h"

#include "mshtml_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(mshtml);

static ITypeLib *typelib;
static ITypeInfo *typeinfos[LAST_tid];

static REFIID tid_ids[] = {
    &IID_IHTMLWindow2,
};

HRESULT get_typeinfo(tid_t tid, ITypeInfo **typeinfo)
{
    HRESULT hres;

    if(!typelib) {
        ITypeLib *tl;

        hres = LoadRegTypeLib(&LIBID_MSHTML, 4, 0, LOCALE_SYSTEM_DEFAULT, &tl);
        if(FAILED(hres)) {
            ERR("LoadRegTypeLib failed: %08x\n", hres);
            return hres;
        }

        if(InterlockedCompareExchangePointer((void**)&typelib, tl, NULL))
            ITypeLib_Release(tl);
    }

    if(!typeinfos[tid]) {
        ITypeInfo *typeinfo;

        hres = ITypeLib_GetTypeInfoOfGuid(typelib, tid_ids[tid], &typeinfo);
        if(FAILED(hres)) {
            ERR("GetTypeInfoOfGuid failed: %08x\n", hres);
            return hres;
        }

        if(InterlockedCompareExchangePointer((void**)(typeinfos+tid), typeinfo, NULL))
            ITypeInfo_Release(typeinfo);
    }

    *typeinfo = typeinfos[tid];
    return S_OK;
}

void release_typelib(void)
{
    unsigned i;

    if(!typelib)
        return;

    for(i=0; i < sizeof(typeinfos)/sizeof(*typeinfos); i++)
        if(typeinfos[i])
            ITypeInfo_Release(typeinfos[i]);

    ITypeLib_Release(typelib);
}

#define DISPATCHEX_THIS(iface) DEFINE_THIS(DispatchEx, IDispatchEx, iface)

static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);

    return IUnknown_QueryInterface(This->outer, riid, ppv);
}

static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);

    return IUnknown_AddRef(This->outer);
}

static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);

    return IUnknown_Release(This->outer);
}

static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);

    TRACE("(%p)->(%p)\n", This, pctinfo);

    *pctinfo = 1;
    return S_OK;
}

static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo,
                                              LCID lcid, ITypeInfo **ppTInfo)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
                                                LPOLESTR *rgszNames, UINT cNames,
                                                LCID lcid, DISPID *rgDispId)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
          lcid, rgDispId);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
                            REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
                            VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
          lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
        VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%x)\n", This, id);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%x %p)\n", This, id, pbstrName);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
    return E_NOTIMPL;
}

static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
{
    DispatchEx *This = DISPATCHEX_THIS(iface);
    FIXME("(%p)->(%p)\n", This, ppunk);
    return E_NOTIMPL;
}

#undef DISPATCHEX_THIS

static IDispatchExVtbl DispatchExVtbl = {
    DispatchEx_QueryInterface,
    DispatchEx_AddRef,
    DispatchEx_Release,
    DispatchEx_GetTypeInfoCount,
    DispatchEx_GetTypeInfo,
    DispatchEx_GetIDsOfNames,
    DispatchEx_Invoke,
    DispatchEx_GetDispID,
    DispatchEx_InvokeEx,
    DispatchEx_DeleteMemberByName,
    DispatchEx_DeleteMemberByDispID,
    DispatchEx_GetMemberProperties,
    DispatchEx_GetMemberName,
    DispatchEx_GetNextDispID,
    DispatchEx_GetNameSpaceParent
};

void init_dispex(DispatchEx *dispex, IUnknown *outer)
{
    dispex->lpIDispatchExVtbl = &DispatchExVtbl;
    dispex->outer = outer;
}