/*

Miranda IM: the free IM client for Microsoft* Windows*

Copyright 2000-2008 Miranda ICQ/IM project, 
all portions of this codebase are copyrighted to the people 
listed in contributors.txt.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
#include "hdr/modern_commonheaders.h"
#include "hdr/modern_clc.h"
#include "hdr/modern_clist.h"
#include "m_metacontacts.h"
#include "hdr/modern_commonprototypes.h"

void AddSubcontacts(ClcData *dat, ClcContact *cont, BOOL showOfflineHereGroup)
{
	ClcCacheEntry *cacheEntry = pcli->pfnGetCacheEntry(cont->hContact);
	cont->SubExpanded = ( db_get_b(cont->hContact,"CList","Expanded",0) && ( db_get_b(NULL,"CLC","MetaExpanding",SETTING_METAEXPANDING_DEFAULT)));
	int subcount = (int)CallService(MS_MC_GETNUMCONTACTS,(WPARAM)cont->hContact,0);
	if (subcount <= 0) {
		cont->isSubcontact = 0;
		cont->subcontacts = NULL;
		cont->SubAllocated = 0;
		return;
	}

	cont->isSubcontact = 0;
	mir_free(cont->subcontacts);
	cont->subcontacts = (ClcContact *) mir_calloc(sizeof(ClcContact)*subcount);
	cont->SubAllocated = subcount;
	int i=0;
	for (int j = 0; j < subcount; j++) {
		HANDLE hsub = (HANDLE)CallService(MS_MC_GETSUBCONTACT,(WPARAM)cont->hContact,j);
		cacheEntry = pcli->pfnGetCacheEntry(hsub);
		WORD wStatus = pdnce___GetStatus(cacheEntry);
		if (showOfflineHereGroup || (!( db_get_b(NULL,"CLC","MetaHideOfflineSub",SETTING_METAHIDEOFFLINESUB_DEFAULT) && db_get_b(NULL,"CList","HideOffline",SETTING_HIDEOFFLINE_DEFAULT))
			|| wStatus != ID_STATUS_OFFLINE )) {
			ClcContact& p = cont->subcontacts[i];
			p.hContact = cacheEntry->hContact;

			p.avatar_pos = AVATAR_POS_DONT_HAVE;
			Cache_GetAvatar(dat, &p);

			p.iImage = corecli.pfnGetContactIcon(cacheEntry->hContact);
			memset(p.iExtraImage, 0xFF, sizeof(p.iExtraImage));
			p.proto = cacheEntry->m_cache_cszProto;
			p.type = CLCIT_CONTACT;
			p.flags = 0;//CONTACTF_ONLINE;
			p.isSubcontact = i+1;
			p.lastPaintCounter = 0;
			p.subcontacts = cont;
			p.image_is_special = FALSE;
			//p.status = cacheEntry->status;
			Cache_GetTimezone(dat, (&p)->hContact);
			Cache_GetText(dat, &p,1);

			char *szProto = cacheEntry->m_cache_cszProto;
			if (szProto != NULL && !pcli->pfnIsHiddenMode(dat,wStatus))
				p.flags |= CONTACTF_ONLINE;
			int apparentMode = szProto != NULL ? cacheEntry->ApparentMode : 0;
			if (apparentMode == ID_STATUS_OFFLINE)	p.flags |= CONTACTF_INVISTO;
			else if (apparentMode == ID_STATUS_ONLINE) p.flags |= CONTACTF_VISTO;
			else if (apparentMode) p.flags |= CONTACTF_VISTO|CONTACTF_INVISTO;
			if (cacheEntry->NotOnList) p.flags |= CONTACTF_NOTONLIST;
			int idleMode = szProto != NULL?cacheEntry->IdleTS:0;
			if (idleMode) p.flags |= CONTACTF_IDLE;
			i++;
		}
	}

	cont->SubAllocated = i;
	if ( !i && cont->subcontacts != NULL)
		mir_free_and_nil(cont->subcontacts);
}

int cli_AddItemToGroup(ClcGroup *group,int iAboveItem)
{
	if ( group == NULL ) return 0;

	iAboveItem = corecli.pfnAddItemToGroup( group, iAboveItem );
	ClearRowByIndexCache();
	return iAboveItem;
}

ClcGroup *cli_AddGroup(HWND hwnd,ClcData *dat,const TCHAR *szName, DWORD flags,int groupId,int calcTotalMembers)
{
	ClearRowByIndexCache();	
	if ( !dat->force_in_dialog && !(GetWindowLongPtr(hwnd, GWL_STYLE) & CLS_SHOWHIDDEN))
		if ( !lstrcmp(_T("-@-HIDDEN-GROUP-@-"),szName)) { //group is hidden
			ClearRowByIndexCache();
			return NULL;
		}

	ClcGroup *result = corecli.pfnAddGroup(hwnd, dat, szName, flags, groupId, calcTotalMembers);
	ClearRowByIndexCache();
	return result;
}

void cli_FreeContact(ClcContact *p)
{
	if ( p->SubAllocated) {
		if ( p->subcontacts && !p->isSubcontact) {
			for (int i=0 ; i < p->SubAllocated ; i++ ) {
				p->subcontacts[i].ssText.DestroySmileyList();
				if ( p->subcontacts[i].avatar_pos == AVATAR_POS_ANIMATED )
					AniAva_RemoveAvatar( p->subcontacts[i].hContact );
					p->subcontacts[i].avatar_pos = AVATAR_POS_DONT_HAVE;
			}
			mir_free_and_nil(p->subcontacts);
	}	}

	p->ssText.DestroySmileyList();
	if ( p->avatar_pos == AVATAR_POS_ANIMATED )
		AniAva_RemoveAvatar( p->hContact );
	p->avatar_pos = AVATAR_POS_DONT_HAVE;
	corecli.pfnFreeContact( p );
}

void cli_FreeGroup( ClcGroup* group )
{
	corecli.pfnFreeGroup( group );
	ClearRowByIndexCache();
}

int cli_AddInfoItemToGroup(ClcGroup *group,int flags,const TCHAR *pszText)
{
	int i = corecli.pfnAddInfoItemToGroup( group, flags, pszText );
	ClearRowByIndexCache();
	return i;
}

static void _LoadDataToContact(ClcContact *cont, ClcGroup *group, ClcData *dat, HANDLE hContact)
{
	ClcCacheEntry *cacheEntry = NULL;
	WORD apparentMode;
	DWORD idleMode;
	char * szProto;

	if ( !cont) return;
	cont->type = CLCIT_CONTACT;
	cont->SubAllocated = 0;
	cont->isSubcontact = 0;
	cont->subcontacts = NULL;
	cont->szText[0] = 0;
	cont->lastPaintCounter = 0;
	cont->image_is_special = FALSE;
	cont->hContact = hContact;

	pcli->pfnInvalidateDisplayNameCacheEntry(hContact);	
	cacheEntry = pcli->pfnGetCacheEntry(hContact);	
	
	szProto = cacheEntry->m_cache_cszProto;
	cont->proto = szProto;

	if (szProto != NULL && !pcli->pfnIsHiddenMode(dat,pdnce___GetStatus( cacheEntry )))
		cont->flags |= CONTACTF_ONLINE;
	
	apparentMode = szProto != NULL?cacheEntry->ApparentMode:0;
	
	if (apparentMode)
		switch (apparentMode)
		{
			case ID_STATUS_OFFLINE:
				cont->flags |= CONTACTF_INVISTO;
				break;
			case ID_STATUS_ONLINE:
				cont->flags |= CONTACTF_VISTO;
				break;
			default:
				cont->flags |= CONTACTF_VISTO|CONTACTF_INVISTO;
		}
	
	if (cacheEntry->NotOnList) 
		cont->flags |= CONTACTF_NOTONLIST;
	idleMode = szProto != NULL?cacheEntry->IdleTS:0;
	
	if (idleMode) 
		cont->flags |= CONTACTF_IDLE;
	

	//Add subcontacts
	if (szProto)
	{	
		if ( g_szMetaModuleName && dat->IsMetaContactsEnabled && mir_strcmp(cont->proto,g_szMetaModuleName) == 0) 
			AddSubcontacts(dat,cont,CLCItems_IsShowOfflineGroup(group));
	}
	cont->lastPaintCounter = 0;
	cont->avatar_pos = AVATAR_POS_DONT_HAVE;
	Cache_GetAvatar(dat,cont);
	Cache_GetText(dat,cont,1);
	Cache_GetTimezone(dat,cont->hContact);
	cont->iImage = corecli.pfnGetContactIcon(hContact);
	cont->bContactRate = db_get_b(hContact, "CList", "Rate",0);
}

static ClcContact *AddContactToGroup(ClcData *dat,ClcGroup *group, ClcCacheEntry *cacheEntry)
{
	HANDLE hContact;
	int i;
	if (cacheEntry == NULL) return NULL;
	if (group == NULL) return NULL;
	if (dat == NULL) return NULL;
	hContact = cacheEntry->hContact;
	dat->needsResort = 1;
	for (i = group->cl.count-1;i >= 0;i--)
		if (group->cl.items[i]->type != CLCIT_INFO || !(group->cl.items[i]->flags&CLCIIF_BELOWCONTACTS)) break;
	i = cli_AddItemToGroup(group,i+1);

	_LoadDataToContact(group->cl.items[i], group, dat, hContact);
	cacheEntry = pcli->pfnGetCacheEntry(hContact);
	ClearRowByIndexCache();
	return group->cl.items[i];
}

void * AddTempGroup(HWND hwnd,ClcData *dat,const TCHAR *szName,DWORD flags,int groupId,int calcTotalMembers)
{
	int i=0;
	int f = 0;
	TCHAR * szGroupName;
	DWORD groupFlags;

	if ( wildcmp( _T2A(szName), "-@-HIDDEN-GROUP-@-"))
		return NULL;

	for (i = 1;; i++) {
		szGroupName = pcli->pfnGetGroupName(i,&groupFlags);
		if (szGroupName == NULL) break;
		if ( !mir_tstrcmpi(szGroupName,szName)) f = 1;
	}
	if ( !f)
	{
		char buf[20];
		TCHAR b2[255];
		void * res = NULL;
		mir_snprintf(buf,SIZEOF(buf),"%d",(i-1));
		mir_sntprintf(b2,SIZEOF(b2),_T("#%s"),szName);
		b2[0] = 1|GROUPF_EXPANDED;
		db_set_ws(NULL,"CListGroups",buf,b2);
		pcli->pfnGetGroupName(i,&groupFlags);
		res = cli_AddGroup(hwnd,dat,szName,groupFlags,i,0);
		return res;
	}
	return NULL;
}

void cli_AddContactToTree(HWND hwnd,ClcData *dat,HANDLE hContact,int updateTotalCount,int checkHideOffline)
{
	ClcCacheEntry *cacheEntry = pcli->pfnGetCacheEntry(hContact);
	if (dat->IsMetaContactsEnabled && cacheEntry && cacheEntry->m_cache_nHiddenSubcontact)
		return;		//contact should not be added

	if ( !dat->IsMetaContactsEnabled && cacheEntry && g_szMetaModuleName && !mir_strcmp(cacheEntry->m_cache_cszProto,g_szMetaModuleName))
		return;

	corecli.pfnAddContactToTree(hwnd,dat,hContact,updateTotalCount,checkHideOffline);

	ClcGroup *group;
	ClcContact *cont;
	if ( FindItem(hwnd,dat,hContact,&cont,&group,NULL,FALSE))
		_LoadDataToContact(cont, group, dat, hContact);
	return;
}

void cli_DeleteItemFromTree(HWND hwnd,HANDLE hItem)
{
	ClcData *dat = (ClcData *) GetWindowLongPtr(hwnd, 0);
	ClearRowByIndexCache();
	corecli.pfnDeleteItemFromTree(hwnd, hItem);

	//check here contacts are not resorting
	if (hwnd == pcli->hwndContactTree)
		pcli->pfnFreeCacheItem( pcli->pfnGetCacheEntry(hItem)); 
	dat->needsResort = 1;
	ClearRowByIndexCache();
}


__inline BOOL CLCItems_IsShowOfflineGroup(ClcGroup* group)
{
	DWORD groupFlags = 0;
	if ( !group) return FALSE;
	if (group->hideOffline) return FALSE;
	pcli->pfnGetGroupName(group->groupId,&groupFlags);
	return (groupFlags&GROUPF_SHOWOFFLINE) != 0;
}

HANDLE SaveSelection( ClcData *dat )
{
	ClcContact *selcontact = NULL;

	if ( pcli->pfnGetRowByIndex( dat, dat->selection, &selcontact, NULL ) == -1 )
		return NULL;
	else
		return pcli->pfnContactToHItem( selcontact );
}

int RestoreSelection( ClcData *dat, HANDLE hSelected )
{
	ClcContact *selcontact = NULL;
	ClcGroup *selgroup = NULL;

	if ( !hSelected || !pcli->pfnFindItem( dat->hWnd, dat, hSelected, &selcontact, &selgroup, NULL))
	{
		dat->selection = -1;
		return dat->selection;
	}

	if ( !selcontact->isSubcontact )
	{
		dat->selection = pcli->pfnGetRowsPriorTo( &dat->list, selgroup, List_IndexOf((SortedList*)&selgroup->cl, selcontact ));
	}
	else
	{ 
		dat->selection = pcli->pfnGetRowsPriorTo(&dat->list, selgroup, List_IndexOf((SortedList*)&selgroup->cl, selcontact->subcontacts ));
	
		if (dat->selection != -1 ) 
			dat->selection += selcontact->isSubcontact;
	}
	return dat->selection;

}

void cliRebuildEntireList(HWND hwnd,ClcData *dat)
{
	DWORD style = GetWindowLongPtr(hwnd,GWL_STYLE);
	ClcContact *cont;
	ClcGroup *group;
	static int rebuildCounter = 0;

	BOOL PlaceOfflineToRoot = db_get_b(NULL,"CList","PlaceOfflineToRoot",SETTING_PLACEOFFLINETOROOT_DEFAULT);
	KillTimer(hwnd,TIMERID_REBUILDAFTER);

	ClearRowByIndexCache();
	ImageArray_Clear(&dat->avatar_cache);
	RowHeights_Clear(dat);
	RowHeights_GetMaxRowHeight(dat, hwnd);
	TRACEVAR("Rebuild Entire List %d times\n",++rebuildCounter);

	dat->list.expanded = 1;
	dat->list.hideOffline = db_get_b(NULL,"CLC","HideOfflineRoot",SETTING_HIDEOFFLINEATROOT_DEFAULT) && style&CLS_USEGROUPS;
	dat->list.cl.count = dat->list.cl.limit = 0;
	dat->list.cl.increment = 50;
	dat->needsResort = 1;

	HANDLE hSelected = SaveSelection( dat );
	dat->selection = -1;
	dat->HiLightMode = db_get_b(NULL,"CLC","HiLightMode",SETTING_HILIGHTMODE_DEFAULT);
	{
		for (int i = 1;; i++) {
			DWORD groupFlags;
			TCHAR *szGroupName = pcli->pfnGetGroupName(i,&groupFlags); //UNICODE
			if (szGroupName == NULL)
				break;
			cli_AddGroup(hwnd,dat,szGroupName,groupFlags,i,0);
		}
	}

	for (HANDLE hContact = db_find_first(); hContact; hContact = db_find_next(hContact)) {
		ClcCacheEntry *cacheEntry = NULL;
		cont = NULL;
		cacheEntry = pcli->pfnGetCacheEntry(hContact);

		int nHiddenStatus = CLVM_GetContactHiddenStatus(hContact, NULL, dat);
		if ((style & CLS_SHOWHIDDEN && nHiddenStatus != -1) || !nHiddenStatus) {
			if (lstrlen(cacheEntry->tszGroup) == 0)
				group = &dat->list;
			else
				group = cli_AddGroup(hwnd,dat,cacheEntry->tszGroup,(DWORD)-1, 0, 0);

			if (group != NULL) {
				WORD wStatus = pdnce___GetStatus( cacheEntry );
				if (wStatus == ID_STATUS_OFFLINE)
					if (PlaceOfflineToRoot)
						group = &dat->list;
				group->totalMembers++;

				if ( !(style & CLS_NOHIDEOFFLINE) && (style & CLS_HIDEOFFLINE || group->hideOffline)) {
					if (cacheEntry->m_cache_cszProto == NULL) {
						if ( !pcli->pfnIsHiddenMode(dat,ID_STATUS_OFFLINE) || cacheEntry->m_cache_nNoHiddenOffline || CLCItems_IsShowOfflineGroup(group))
							cont = AddContactToGroup(dat,group,cacheEntry);
					}
					else if ( !pcli->pfnIsHiddenMode(dat,wStatus) || cacheEntry->m_cache_nNoHiddenOffline || CLCItems_IsShowOfflineGroup(group))
						cont = AddContactToGroup(dat,group,cacheEntry);
				}
				else cont = AddContactToGroup(dat,group,cacheEntry);
			}
		}
		if (cont) {	
			cont->SubAllocated = 0;
			if (cont->proto && g_szMetaModuleName && dat->IsMetaContactsEnabled  && strcmp(cont->proto,g_szMetaModuleName) == 0)
				AddSubcontacts(dat,cont,CLCItems_IsShowOfflineGroup(group));
		}
	}

	if (style & CLS_HIDEEMPTYGROUPS) {
		group = &dat->list;
		group->scanIndex = 0;
		for (;;) {
			if (group->scanIndex == group->cl.count) {
				group = group->parent;
				if (group == NULL) break;
			}
			else if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP) {
				if (group->cl.items[group->scanIndex]->group->cl.count == 0) {
					group = pcli->pfnRemoveItemFromGroup(hwnd,group,group->cl.items[group->scanIndex],0);
				}
				else {
					group = group->cl.items[group->scanIndex]->group;
					group->scanIndex = 0;
				}
				continue;
			}
			group->scanIndex++;
		}
	}

	pcli->pfnSortCLC(hwnd,dat,0);

	RestoreSelection( dat, hSelected );
}

void cli_SortCLC( HWND hwnd, ClcData *dat, int useInsertionSort )
{
	HANDLE hSelected = SaveSelection( dat );

	corecli.pfnSortCLC(hwnd,dat,useInsertionSort);

	RestoreSelection( dat, hSelected );
}

int GetNewSelection(ClcGroup *group, int selection, int direction)
{
	int lastcount = 0, count = 0;//group->cl.count;
	if (selection < 0) {
		return 0;
	}
	group->scanIndex = 0;
	for (;;) {
		if (group->scanIndex == group->cl.count) {
			group = group->parent;
			if (group == NULL) break;
			group->scanIndex++;
			continue;
		}
		if (count >= selection) return count;
		lastcount = count;
		count++;
		if ( !direction) {
			if (count>selection) return lastcount;
		}
		if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP && (group->cl.items[group->scanIndex]->group->expanded)) {
			group = group->cl.items[group->scanIndex]->group;
			group->scanIndex = 0;
			continue;
		}
		group->scanIndex++;
	}
	return lastcount;
}

struct SavedContactState_t {
	HANDLE hContact;
	WORD iExtraImage[EXTRA_ICON_COUNT];
	int checked;
};

struct SavedGroupState_t {
	int groupId,expanded;
};

struct SavedInfoState_t {
	int parentId;
	ClcContact contact;
};

BOOL LOCK_RECALC_SCROLLBAR = FALSE;
void cli_SaveStateAndRebuildList(HWND hwnd, ClcData *dat)
{
	LOCK_RECALC_SCROLLBAR = TRUE;

	NMCLISTCONTROL nm;
	int i, j;
	OBJLIST<SavedGroupState_t> savedGroup( 4 );
	OBJLIST<SavedContactState_t> savedContact( 4 );
	OBJLIST<SavedInfoState_t> savedInfo( 4 );

	ClcGroup *group;
	ClcContact *contact;
	
	pcli->pfnHideInfoTip(hwnd, dat);
	KillTimer(hwnd, TIMERID_INFOTIP);
	KillTimer(hwnd, TIMERID_RENAME);
	pcli->pfnEndRename(hwnd, dat, 1);

	dat->needsResort = 1;
	group = &dat->list;
	group->scanIndex = 0;
	for (;;) {
		if (group->scanIndex == group->cl.count) {
			group = group->parent;
			if (group == NULL)
				break;
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP) {
			group = group->cl.items[group->scanIndex]->group;
			group->scanIndex = 0;
			
			SavedGroupState_t* p = new SavedGroupState_t;
			p->groupId = group->groupId;
			p->expanded = group->expanded;
			savedGroup.insert( p );
			continue;
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_CONTACT) {
			SavedContactState_t* p = new SavedContactState_t;
			p->hContact = group->cl.items[group->scanIndex]->hContact;
			memcpy(p->iExtraImage, group->cl.items[group->scanIndex]->iExtraImage, sizeof(p->iExtraImage));
			p->checked = group->cl.items[group->scanIndex]->flags & CONTACTF_CHECKED;
			savedContact.insert( p );
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_INFO) {
			SavedInfoState_t* p = new SavedInfoState_t;
			memset( p, 0, sizeof( SavedInfoState_t ));
			if (group->parent == NULL)
				p->parentId = -1;
			else
				p->parentId = group->groupId;
			p->contact = *group->cl.items[group->scanIndex];
			savedInfo.insert( p );
		}
		group->scanIndex++;
	}

	pcli->pfnFreeGroup(&dat->list);
	pcli->pfnRebuildEntireList(hwnd, dat);

	group = &dat->list;
	group->scanIndex = 0;
	for (;;) {
		if (group->scanIndex == group->cl.count) {
			group = group->parent;
			if (group == NULL)
				break;
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP) {
			group = group->cl.items[group->scanIndex]->group;
			group->scanIndex = 0;
			for (i=0; i < savedGroup.getCount(); i++)
				if (savedGroup[i].groupId == group->groupId) {
					group->expanded = savedGroup[i].expanded;
					break;
				}
			continue;
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_CONTACT) {
			for (i=0; i < savedContact.getCount(); i++)
				if (savedContact[i].hContact == group->cl.items[group->scanIndex]->hContact) {
					memcpy(group->cl.items[group->scanIndex]->iExtraImage, savedContact[i].iExtraImage, sizeof(contact->iExtraImage));
					if (savedContact[i].checked)
						group->cl.items[group->scanIndex]->flags |= CONTACTF_CHECKED;
					break;
				}
		}
		group->scanIndex++;
	}
	savedGroup.destroy();
	savedContact.destroy();

	for (i=0; i < savedInfo.getCount(); i++) {
		if (savedInfo[i].parentId == -1)
			group = &dat->list;
		else {
			if ( !pcli->pfnFindItem(hwnd, dat, (HANDLE) (savedInfo[i].parentId | HCONTACT_ISGROUP), &contact, NULL, NULL))
				continue;
			group = contact->group;
		}
		j = pcli->pfnAddInfoItemToGroup(group, savedInfo[i].contact.flags, _T(""));
		*group->cl.items[j] = savedInfo[i].contact;
	}
	savedInfo.destroy();

	LOCK_RECALC_SCROLLBAR = FALSE;
	pcli->pfnRecalculateGroupCheckboxes(hwnd, dat);

	pcli->pfnRecalcScrollBar(hwnd, dat);
	nm.hdr.code = CLN_LISTREBUILT;
	nm.hdr.hwndFrom = hwnd;
	nm.hdr.idFrom = GetDlgCtrlID(hwnd);
	SendMessage(GetParent(hwnd), WM_NOTIFY, 0, (LPARAM) & nm);
}


WORD pdnce___GetStatus(ClcCacheEntry *pdnce)
{
	if ( !pdnce) 
		return ID_STATUS_OFFLINE;
	else
		return pdnce->m_cache_nStatus;
}

void pdnce___SetStatus( ClcCacheEntry *pdnce, WORD wStatus )
{
	if (pdnce)
		pdnce->m_cache_nStatus = wStatus;
}

ClcContact* cliCreateClcContact()
{
	ClcContact* contact = (ClcContact*)mir_calloc(sizeof( ClcContact ));
	memset(contact->iExtraImage, 0xFF, sizeof(contact->iExtraImage));
	return contact;
}

ClcCacheEntry* cliCreateCacheItem( HANDLE hContact )
{
	ClcCacheEntry *p = (ClcCacheEntry *)mir_calloc(sizeof( ClcCacheEntry ));
	if (p == NULL)
		return NULL;
		
	p->hContact = hContact;
	InvalidateDNCEbyPointer(hContact, p, 0);
	p->szSecondLineText = NULL;
	p->szThirdLineText = NULL;
	p->ssSecondLine.plText = NULL;
	p->ssThirdLine.plText = NULL;
	return p;
}

void cliInvalidateDisplayNameCacheEntry(HANDLE hContact)
{
	if (hContact == INVALID_HANDLE_VALUE)
		corecli.pfnInvalidateDisplayNameCacheEntry(INVALID_HANDLE_VALUE);
	else {
		ClcCacheEntry *p = pcli->pfnGetCacheEntry(hContact);
		if (p)
			InvalidateDNCEbyPointer(hContact,p,0);
	}
}

char* cli_GetGroupCountsText(ClcData *dat, ClcContact *contact)
{
	return corecli.pfnGetGroupCountsText(dat, contact);
}

int cliGetGroupContentsCount(ClcGroup *group, int visibleOnly)
{
	int count = group->cl.count;
	ClcGroup *topgroup = group;

	group->scanIndex = 0;
	for (;;) {
		if (group->scanIndex == group->cl.count) {
			if (group == topgroup)
				break;
			group = group->parent;
		}
		else if (group->cl.items[group->scanIndex]->type == CLCIT_GROUP && (!(visibleOnly&0x01) || group->cl.items[group->scanIndex]->group->expanded)) {
			group = group->cl.items[group->scanIndex]->group;
			group->scanIndex = 0;
			count += group->cl.count;
			continue;
		}
		else if ((group->cl.items[group->scanIndex]->type == CLCIT_CONTACT) && 
			(group->cl.items[group->scanIndex]->subcontacts != NULL)  && 
			((group->cl.items[group->scanIndex]->SubExpanded || (!visibleOnly))))
		{
			count += group->cl.items[group->scanIndex]->SubAllocated;
		}
		group->scanIndex++;
	}
	return count;
}

/*
* checks the currently active view mode filter and returns true, if the contact should be hidden
* if no view mode is active, it returns the CList/Hidden setting
* also cares about sub contacts (if meta is active)
*/

int __fastcall CLVM_GetContactHiddenStatus(HANDLE hContact, char *szProto, ClcData *dat)
{
	int dbHidden = db_get_b(hContact, "CList", "Hidden", 0);		// default hidden state, always respect it.
	int filterResult = 1;
	int searchResult = 0;
	DBVARIANT dbv = {0};
	char szTemp[64];
	TCHAR szGroupMask[256];
	DWORD dwLocalMask;
	ClcCacheEntry *pdnce = pcli->pfnGetCacheEntry(hContact);
	BOOL fEmbedded = dat->force_in_dialog;
	// always hide subcontacts (but show them on embedded contact lists)

	if (g_CluiData.bMetaAvail && dat != NULL && dat->IsMetaContactsEnabled && g_szMetaModuleName && db_get_b(hContact, g_szMetaModuleName, "IsSubcontact", 0))
		return -1; //subcontact
	if (pdnce && pdnce->isUnknown && !fEmbedded)
		return 1; //'Unknown Contact'
	if (dat->filterSearch && dat->szQuickSearch && pdnce->tszName) {
		// search filtering
		TCHAR *lowered_name = CharLowerW(NEWTSTR_ALLOCA(pdnce->tszName));
		TCHAR *lowered_search = CharLowerW(NEWTSTR_ALLOCA(dat->szQuickSearch));
		searchResult = _tcsstr(lowered_name, lowered_search) ? 0 : 1;
	}
	if (pdnce && g_CluiData.bFilterEffective && !fEmbedded) {
		if (szProto == NULL)
			szProto = GetContactProto(hContact);
		// check stickies first (priority), only if we really have stickies defined (CLVM_STICKY_CONTACTS is set).
		if (g_CluiData.bFilterEffective & CLVM_STICKY_CONTACTS) {
			if ((dwLocalMask = db_get_dw(hContact, CLVM_MODULE, g_CluiData.current_viewmode, 0)) != 0) {
				if (g_CluiData.bFilterEffective & CLVM_FILTER_STICKYSTATUS) {
					WORD wStatus = db_get_w(hContact, szProto, "Status", ID_STATUS_OFFLINE);
					return !((1 << (wStatus - ID_STATUS_OFFLINE)) & HIWORD(dwLocalMask)) | searchResult;
				}
				return 0 | searchResult;
			}
		}
		// check the proto, use it as a base filter result for all further checks
		if (g_CluiData.bFilterEffective & CLVM_FILTER_PROTOS) {
			mir_snprintf(szTemp, SIZEOF(szTemp), "%s|", szProto);
			filterResult = strstr(g_CluiData.protoFilter, szTemp) ? 1 : 0;
		}
		if (g_CluiData.bFilterEffective & CLVM_FILTER_GROUPS) {
			if ( !db_get_ts(hContact, "CList", "Group", &dbv)) {
				mir_sntprintf(szGroupMask, SIZEOF(szGroupMask), _T("%s|"), &dbv.ptszVal[0]);
				filterResult = (g_CluiData.filterFlags & CLVM_PROTOGROUP_OP) ? (filterResult | (_tcsstr(g_CluiData.groupFilter, szGroupMask) ? 1 : 0)) : (filterResult & (_tcsstr(g_CluiData.groupFilter, szGroupMask) ? 1 : 0));
				mir_free(dbv.ptszVal);
			}
			else if (g_CluiData.filterFlags & CLVM_INCLUDED_UNGROUPED)
				filterResult = (g_CluiData.filterFlags & CLVM_PROTOGROUP_OP) ? filterResult : filterResult & 1;
			else
				filterResult = (g_CluiData.filterFlags & CLVM_PROTOGROUP_OP) ? filterResult : filterResult & 0;
		}
		if (g_CluiData.bFilterEffective & CLVM_FILTER_STATUS) {
			WORD wStatus = db_get_w(hContact, szProto, "Status", ID_STATUS_OFFLINE);
			filterResult = (g_CluiData.filterFlags & CLVM_GROUPSTATUS_OP) ? ((filterResult | ((1 << (wStatus - ID_STATUS_OFFLINE)) & g_CluiData.statusMaskFilter ? 1 : 0))) : (filterResult & ((1 << (wStatus - ID_STATUS_OFFLINE)) & g_CluiData.statusMaskFilter ? 1 : 0));
		}
		if (g_CluiData.bFilterEffective & CLVM_FILTER_LASTMSG) {
			ClcCacheEntry *pdnce = pcli->pfnGetCacheEntry(hContact);
			if (pdnce) {
				DWORD now = g_CluiData.t_now;
				now -= g_CluiData.lastMsgFilter;
				if (g_CluiData.bFilterEffective & CLVM_FILTER_LASTMSG_OLDERTHAN)
					filterResult = filterResult & (pdnce->dwLastMsgTime < now);
				else if (g_CluiData.bFilterEffective & CLVM_FILTER_LASTMSG_NEWERTHAN)
					filterResult = filterResult & (pdnce->dwLastMsgTime > now);
			}
		}
		return (dbHidden | !filterResult | searchResult);
	}
	
	return dbHidden | searchResult;
}