/*
Chat module plugin for Miranda IM

Copyright (C) 2003 Jörgen Persson

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 "..\..\core\commonheaders.h"

#include "chat.h"

HANDLE AddRoom(const char* pszModule, const TCHAR* pszRoom, const TCHAR* pszDisplayName, int iType)
{
	HANDLE hContact = ci.FindRoom(pszModule, pszRoom);
	DBVARIANT dbv;
	TCHAR pszGroup[50];

	*pszGroup = '\0';
	if ( !db_get_ts( NULL, "Chat", "AddToGroup", &dbv )) {
		if ( lstrlen( dbv.ptszVal ) > 0 )
			lstrcpyn( pszGroup, dbv.ptszVal, 50);
		db_free(&dbv);
	}
	else lstrcpyn( pszGroup, _T("Chat rooms"), 50);

	if ( pszGroup[0] )
		Clist_CreateGroup(0, pszGroup);

	if ( hContact ) { //contact exist, make sure it is in the right group
		if (pszGroup[0]) {
			ptrT grpName( db_get_tsa(hContact, "CList", "Group"));
			if ( !lstrcmp(pszGroup, grpName))
				db_set_ts(hContact, "CList", "Group", pszGroup);
		}

		db_set_w( hContact, pszModule, "Status", ID_STATUS_OFFLINE );
		db_set_ts(hContact, pszModule, "Nick", pszDisplayName );
		return hContact;
	}

	// here we create a new one since no one is to be found
	if (( hContact = (HANDLE) CallService(MS_DB_CONTACT_ADD, 0, 0)) == NULL )
		return NULL;

	CallService(MS_PROTO_ADDTOCONTACT, (WPARAM) hContact, (LPARAM) pszModule );
	if ( pszGroup && lstrlen( pszGroup ) > 0 )
		db_set_ts(hContact, "CList", "Group", pszGroup );
	else
		db_unset( hContact, "CList", "Group" );
	db_set_ts( hContact, pszModule, "Nick", pszDisplayName );
	db_set_ts( hContact, pszModule, "ChatRoomID", pszRoom );
	db_set_b( hContact, pszModule, "ChatRoom", (BYTE)iType );
	db_set_w( hContact, pszModule, "Status", ID_STATUS_OFFLINE );
	return hContact;
}

BOOL SetOffline(HANDLE hContact, BOOL bHide)
{
	if ( hContact ) {
		char* szProto = GetContactProto(hContact);
		int i = db_get_b(hContact, szProto, "ChatRoom", 0);
		db_set_w(hContact, szProto,"ApparentMode",(LPARAM) 0);
		db_set_w(hContact, szProto, "Status", ID_STATUS_OFFLINE);
		return TRUE;
	}

	return FALSE;
}

BOOL SetAllOffline(BOOL bHide, const char *pszModule)
{
	for (HANDLE hContact = db_find_first(); hContact; hContact = db_find_next(hContact)) {
		char *szProto = GetContactProto(hContact);
		if (!ci.MM_FindModule(szProto))
			continue;
		if (pszModule && strcmp(pszModule, szProto))
			continue;
		int i = db_get_b(hContact, szProto, "ChatRoom", 0);
		if (i != 0) {
			db_set_w(hContact, szProto, "ApparentMode", (LPARAM)(WORD)0);
			db_set_w(hContact, szProto, "Status", ID_STATUS_OFFLINE);
		}
	}

	return TRUE;
}

int RoomDoubleclicked( WPARAM wParam, LPARAM lParam )
{
	BOOL bRedrawFlag = FALSE;

	HANDLE hContact = (HANDLE)wParam;
	if ( !hContact )
		return 0;

	char *szProto = GetContactProto(hContact);
	if (ci.MM_FindModule(szProto) == NULL)
		return 0;
	if (db_get_b(hContact, szProto, "ChatRoom", 0) == 0)
		return 0;

	DBVARIANT dbv;
	if (!db_get_ts(hContact, szProto, "ChatRoomID", &dbv)) {
		SESSION_INFO *si = ci.SM_FindSession(dbv.ptszVal, szProto);
		if (si) {
			// is the "toggle visibility option set, so we need to close the window?
			if (si->hWnd != NULL
				&& db_get_b(NULL, "Chat", "ToggleVisibility", 0) == 1
				&& !CallService(MS_CLIST_GETEVENT, (WPARAM)hContact, 0)
				&& IsWindowVisible(si->hWnd)
				&& !IsIconic(si->hWnd))
			{
				if (ci.OnSessionDblClick)
					ci.OnSessionDblClick(si);
				db_free(&dbv);
				return 1;
			}
			ci.ShowRoom(si, WINDOW_VISIBLE, TRUE);
		}
		db_free(&dbv);
		return 1;
	}

	return 0;
}

INT_PTR EventDoubleclicked(WPARAM wParam,LPARAM lParam)
{
	return RoomDoubleclicked((WPARAM)((CLISTEVENT*)lParam)->hContact, 0);
}

INT_PTR JoinChat(WPARAM wParam, LPARAM lParam)
{
	HANDLE hContact = (HANDLE)wParam;
	if (hContact) {
		char* szProto = GetContactProto(hContact);
		if (szProto) {
			if (db_get_w(hContact, szProto, "Status", 0) == ID_STATUS_OFFLINE)
				CallProtoService(szProto, PS_JOINCHAT, wParam, lParam);
			else
				RoomDoubleclicked(wParam, 0);
		}
	}

	return 0;
}

INT_PTR LeaveChat(WPARAM wParam, LPARAM lParam)
{
	HANDLE hContact = (HANDLE)wParam;
	if (hContact) {
		char* szProto = GetContactProto(hContact);
		if (szProto)
			CallProtoService(szProto, PS_LEAVECHAT, wParam, lParam);
	}
	return 0;
}

int PrebuildContactMenu(WPARAM wParam, LPARAM lParam)
{
	HANDLE hContact = (HANDLE)wParam;
	if (hContact == NULL)
		return 0;

	bool bEnabled = false;
	char *szProto = GetContactProto(hContact);
	if (szProto) {
		// display this menu item only for chats
		if (db_get_b(hContact, szProto, "ChatRoom", 0)) {
			// still hide it for offline protos
			if (CallProtoService(szProto, PS_GETSTATUS, 0, 0) != ID_STATUS_OFFLINE) {
				CLISTMENUITEM mi = { sizeof(mi) };
				mi.flags = CMIM_NAME;
				if (db_get_w(hContact, szProto, "Status", 0) == ID_STATUS_OFFLINE)
					mi.pszName = (char*)LPGEN("Join chat");
				else
					mi.pszName = (char*)LPGEN("Open chat window");
				Menu_ModifyItem(hJoinMenuItem, &mi);
				bEnabled = true;
			}
		}
	}

	Menu_ShowItem(hJoinMenuItem, bEnabled);
	Menu_ShowItem(hLeaveMenuItem, bEnabled);
	return 0;
}

INT_PTR PrebuildContactMenuSvc(WPARAM wParam, LPARAM lParam)
{
	return PrebuildContactMenu(wParam, lParam);
}

BOOL AddEvent(HANDLE hContact, HICON hIcon, HANDLE hEvent, int type, TCHAR* fmt, ... )
{
	TCHAR szBuf[4096];

	if (!fmt || !fmt[0] || _tcslen(fmt) > 2000)
		return FALSE;

	va_list marker;
	va_start(marker, fmt);
	mir_vsntprintf(szBuf, SIZEOF(szBuf), fmt, marker);
	va_end(marker);

	CLISTEVENT cle = { 0 };
	cle.cbSize = sizeof(cle);
	cle.hContact = hContact;
	cle.hDbEvent = hEvent;
	cle.flags = type | CLEF_TCHAR;
	cle.hIcon = hIcon;
	cle.pszService = "GChat/DblClickEvent" ;
	cle.ptszTooltip = TranslateTS(szBuf);
	if (type) {
		if (!CallService(MS_CLIST_GETEVENT, (WPARAM)hContact, 0))
			CallService(MS_CLIST_ADDEVENT, (WPARAM) hContact, (LPARAM) &cle);
	}
	else {
		if (CallService(MS_CLIST_GETEVENT, (WPARAM)hContact, 0))
			CallService(MS_CLIST_REMOVEEVENT, (WPARAM)hContact, (LPARAM)hEvent);
		CallService(MS_CLIST_ADDEVENT, (WPARAM)hContact, (LPARAM)&cle);
	}
	return TRUE;
}

HANDLE FindRoom (const char* pszModule, const TCHAR* pszRoom)
{
	for (HANDLE hContact = db_find_first(pszModule); hContact; hContact = db_find_next(hContact, pszModule)) {
		if ( !db_get_b(hContact, pszModule, "ChatRoom", 0))
			continue;

		DBVARIANT dbv;
		if ( !db_get_ts( hContact, pszModule, "ChatRoomID", &dbv )) {
			if ( !lstrcmpi(dbv.ptszVal, pszRoom)) {
				db_free(&dbv);
				return hContact;
			}
			db_free(&dbv);
		}
	}

	return 0;
}