/*

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

Copyright 2000-2009 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 "..\..\core\commonheaders.h"

int LoadAwayMessageSending(void);

static HANDLE hAwayMsgMenuItem;
static HANDLE hWindowList;

struct AwayMsgDlgData {
	HANDLE hContact;
	HANDLE hSeq;
	HANDLE hAwayMsgEvent;
};
#define HM_AWAYMSG  (WM_USER+10)
static INT_PTR CALLBACK ReadAwayMsgDlgProc(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	AwayMsgDlgData *dat = (AwayMsgDlgData*)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);

	switch(message) 
	{
		case WM_INITDIALOG:
			TranslateDialogDefault(hwndDlg);
			dat = (AwayMsgDlgData*)mir_alloc(sizeof(AwayMsgDlgData));
			SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR)dat);

			dat->hContact = (HANDLE)lParam;
			dat->hAwayMsgEvent = HookEventMessage(ME_PROTO_ACK, hwndDlg, HM_AWAYMSG);
			dat->hSeq = (HANDLE)CallContactService(dat->hContact, PSS_GETAWAYMSG, 0, 0);
			WindowList_Add(hWindowList, hwndDlg, dat->hContact);

			{	
				TCHAR  str[256], format[128];
				TCHAR* contactName = cli.pfnGetContactDisplayName(dat->hContact, 0);
				char*  szProto = (char*)CallService(MS_PROTO_GETCONTACTBASEPROTO, (WPARAM)dat->hContact, 0);
				WORD   dwStatus = DBGetContactSettingWord(dat->hContact, szProto, "Status", ID_STATUS_OFFLINE);
				TCHAR* status = cli.pfnGetStatusModeDescription(dwStatus, 0);
				
				GetWindowText(hwndDlg, format, SIZEOF(format));
				mir_sntprintf(str, SIZEOF(str), format, status, contactName);
				SetWindowText(hwndDlg, str);

				GetDlgItemText(hwndDlg, IDC_RETRIEVING, format, SIZEOF(format));
				mir_sntprintf(str, SIZEOF(str), format, status);
				SetDlgItemText(hwndDlg, IDC_RETRIEVING, str);

				Window_SetProtoIcon_IcoLib(hwndDlg, szProto, dwStatus);
			}
			if (dat->hSeq == NULL)
			{
				ACKDATA ack = {0};
				ack.cbSize = sizeof(ack);
				ack.hContact = dat->hContact; 
				ack.type = ACKTYPE_AWAYMSG;
				ack.result = ACKRESULT_SUCCESS;
				SendMessage(hwndDlg, HM_AWAYMSG, 0, (LPARAM)&ack);
			}
			Utils_RestoreWindowPosition(hwndDlg, (HANDLE)lParam, "SRAway", "AwayMsgDlg");
			return TRUE;

		case HM_AWAYMSG:
		{	
			ACKDATA *ack = (ACKDATA*)lParam;
			if (ack->hContact != dat->hContact || ack->type != ACKTYPE_AWAYMSG) break;
			if (ack->result != ACKRESULT_SUCCESS) break;
			if (dat->hAwayMsgEvent && ack->hProcess == dat->hSeq) { UnhookEvent(dat->hAwayMsgEvent); dat->hAwayMsgEvent = NULL; }

#ifdef _UNICODE
			DBVARIANT dbv;
			bool unicode = !DBGetContactSetting(dat->hContact, "CList", "StatusMsg", &dbv) && 
				(dbv.type == DBVT_UTF8 || dbv.type == DBVT_WCHAR);
			DBFreeVariant(&dbv);
			if (unicode) 
			{
				DBGetContactSettingWString(dat->hContact, "CList", "StatusMsg", &dbv);
				SetDlgItemText(hwndDlg, IDC_MSG, dbv.pwszVal);
			}
			else 
#endif	
				SetDlgItemTextA(hwndDlg, IDC_MSG, (const char*)ack->lParam);

			ShowWindow(GetDlgItem(hwndDlg, IDC_RETRIEVING), SW_HIDE);
			ShowWindow(GetDlgItem(hwndDlg, IDC_MSG), SW_SHOW);
			SetDlgItemText(hwndDlg, IDOK, TranslateT("&Close"));
			break;
		}

		case WM_COMMAND:
			switch(LOWORD(wParam)) 
			{
				case IDCANCEL:
				case IDOK:
					DestroyWindow(hwndDlg);
					break;
			}
			break;

		case WM_CLOSE:
			DestroyWindow(hwndDlg);
			break;

		case WM_DESTROY:
			if (dat->hAwayMsgEvent) UnhookEvent(dat->hAwayMsgEvent);
			Utils_SaveWindowPosition(hwndDlg, dat->hContact, "SRAway", "AwayMsgDlg");
			WindowList_Remove(hWindowList, hwndDlg);
			Window_FreeIcon_IcoLib(hwndDlg);
			mir_free(dat);
			break;
	}
	return FALSE;
}

static INT_PTR GetMessageCommand(WPARAM wParam, LPARAM)
{
	HWND hwnd;
	if (hwnd=WindowList_Find(hWindowList, (HANDLE)wParam)) {
		SetForegroundWindow(hwnd);
		SetFocus(hwnd);
	}
	else CreateDialogParam(hMirandaInst, MAKEINTRESOURCE(IDD_READAWAYMSG), NULL, ReadAwayMsgDlgProc, wParam);
	return 0;
}

static int AwayMsgPreBuildMenu(WPARAM wParam, LPARAM)
{
	CLISTMENUITEM clmi;
	TCHAR str[128];
	char *szProto;

	szProto=(char*)CallService(MS_PROTO_GETCONTACTBASEPROTO, wParam, 0);
	ZeroMemory(&clmi, sizeof(clmi));
	clmi.cbSize = sizeof(clmi);
	clmi.flags = CMIM_FLAGS | CMIF_NOTOFFLINE | CMIF_HIDDEN | CMIF_TCHAR;

	if ( szProto != NULL ) {
	   int chatRoom = szProto ? DBGetContactSettingByte((HANDLE)wParam, szProto, "ChatRoom", 0) : 0;
	   if ( !chatRoom ) {
			int status = DBGetContactSettingWord((HANDLE)wParam, szProto, "Status", ID_STATUS_OFFLINE);
			mir_sntprintf( str, SIZEOF(str), TranslateT("Re&ad %s Message"), cli.pfnGetStatusModeDescription( status, 0 ));
			clmi.ptszName = str;
			if ( CallProtoService( szProto, PS_GETCAPS, PFLAGNUM_1, 0 ) & PF1_MODEMSGRECV ) {
				if ( CallProtoService( szProto, PS_GETCAPS, PFLAGNUM_3, 0 ) & Proto_Status2Flag( status )) {
					clmi.flags = CMIM_FLAGS | CMIM_NAME | CMIF_NOTOFFLINE | CMIM_ICON | CMIF_TCHAR;
					clmi.hIcon = LoadSkinProtoIcon(szProto, status);
	}	}	}	}

	CallService( MS_CLIST_MODIFYMENUITEM, ( WPARAM )hAwayMsgMenuItem, ( LPARAM )&clmi );
	IconLib_ReleaseIcon(clmi.hIcon, 0);
	return 0;
}

static int AwayMsgPreShutdown(WPARAM, LPARAM)
{
	if (hWindowList) WindowList_BroadcastAsync(hWindowList, WM_CLOSE, 0, 0);
	return 0;
}

int LoadAwayMsgModule(void)
{
	CLISTMENUITEM mi = { 0 };

	hWindowList = (HANDLE)CallService(MS_UTILS_ALLOCWINDOWLIST, 0, 0);
	CreateServiceFunction(MS_AWAYMSG_SHOWAWAYMSG, GetMessageCommand);
	
	mi.cbSize     = sizeof(mi);
	mi.position   = -2000005000;
	mi.flags      = CMIF_NOTOFFLINE;
	mi.pszName    = LPGEN("Re&ad Status Message");
	mi.pszService = MS_AWAYMSG_SHOWAWAYMSG;
	hAwayMsgMenuItem = Menu_AddContactMenuItem(&mi);
	HookEvent(ME_CLIST_PREBUILDCONTACTMENU, AwayMsgPreBuildMenu);
	HookEvent(ME_SYSTEM_PRESHUTDOWN, AwayMsgPreShutdown);
	return LoadAwayMessageSending();
}