/*
Plugin of Miranda IM for communicating with users of the MSN Messenger protocol.

Copyright (c) 2012-2014 Miranda NG Team
Copyright (c) 2006-2012 Boris Krasnovskiy.
Copyright (c) 2003-2005 George Hazan.
Copyright (c) 2002-2003 Richard Hughes (original version).

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, see <http://www.gnu.org/licenses/>.
*/


#include "msn_global.h"
#include "msn_proto.h"
#include <m_history.h>

MCONTACT CMsnProto::MSN_GetChatInernalHandle(MCONTACT hContact)
{
	MCONTACT result = hContact;
	if (isChatRoom(hContact)) {
		DBVARIANT dbv;
		if (getString(hContact, "ChatRoomID", &dbv) == 0) {
			result = (MCONTACT)(-atol(dbv.pszVal));
			db_free(&dbv);
		}
	}
	return result;
}

int CMsnProto::MSN_ChatInit(ThreadData *info)
{
	InterlockedIncrement(&sttChatID);
	_ltot(sttChatID, info->mChatID, 10);

	TCHAR szName[512];
	mir_sntprintf(szName, SIZEOF(szName), _T("%s %s%s"),
		m_tszUserName, TranslateT("Chat #"), info->mChatID);

	GCSESSION gcw = { sizeof(gcw) };
	gcw.iType = GCW_CHATROOM;
	gcw.pszModule = m_szModuleName;
	gcw.ptszName = szName;
	gcw.ptszID = info->mChatID;
	CallServiceSync(MS_GC_NEWSESSION, 0, (LPARAM)&gcw);

	GCDEST gcd = { m_szModuleName, info->mChatID, GC_EVENT_ADDGROUP };
	GCEVENT gce = { sizeof(gce), &gcd };
	gce.ptszStatus = TranslateT("Me");
	CallServiceSync(MS_GC_EVENT, 0, (LPARAM)&gce);

	gcd.iType = GC_EVENT_JOIN;
	gce.ptszUID = mir_a2t(MyOptions.szEmail);
	gce.ptszNick = GetContactNameT(NULL);
	gce.time = 0;
	gce.bIsMe = TRUE;
	CallServiceSync(MS_GC_EVENT, 0, (LPARAM)&gce);

	gcd.iType = GC_EVENT_ADDGROUP;
	gce.ptszStatus = TranslateT("Others");
	CallServiceSync(MS_GC_EVENT, 0, (LPARAM)&gce);

	gcd.iType = GC_EVENT_CONTROL;
	CallServiceSync(MS_GC_EVENT, SESSION_INITDONE, (LPARAM)&gce);
	CallServiceSync(MS_GC_EVENT, SESSION_ONLINE, (LPARAM)&gce);
	CallServiceSync(MS_GC_EVENT, WINDOW_VISIBLE, (LPARAM)&gce);

	mir_free((TCHAR*)gce.ptszUID);
	return 0;
}

void CMsnProto::MSN_ChatStart(ThreadData* info)
{
	if (info->mChatID[0] != 0)
		return;

	MSN_StartStopTyping(info, false);

	MSN_ChatInit(info);

	// add all participants onto the list
	GCDEST gcd = { m_szModuleName, info->mChatID, GC_EVENT_JOIN };
	GCEVENT gce = { sizeof(gce), &gcd };
	gce.dwFlags = GCEF_ADDTOLOG;
	gce.ptszStatus = TranslateT("Others");
	gce.time = time(NULL);
	gce.bIsMe = FALSE;

	for (int j = 0; j < info->mJoinedContactsWLID.getCount(); j++) {
		MCONTACT hContact = MSN_HContactFromEmail(info->mJoinedContactsWLID[j]);
		TCHAR *wlid = mir_a2t(info->mJoinedContactsWLID[j]);

		gce.ptszNick = GetContactNameT(hContact);
		gce.ptszUID = wlid;
		CallServiceSync(MS_GC_EVENT, 0, (LPARAM)&gce);

		mir_free(wlid);
	}
}

void CMsnProto::MSN_KillChatSession(const TCHAR* id)
{
	GCDEST gcd = { m_szModuleName, id, GC_EVENT_CONTROL };
	GCEVENT gce = { sizeof(gce), &gcd };
	gce.dwFlags = GCEF_REMOVECONTACT;
	CallServiceSync(MS_GC_EVENT, SESSION_OFFLINE, (LPARAM)&gce);
	CallServiceSync(MS_GC_EVENT, SESSION_TERMINATE, (LPARAM)&gce);
}

static void ChatInviteUser(ThreadData* info, const char* email)
{
	if (info->mJoinedContactsWLID.getCount()) {
		for (int j = 0; j < info->mJoinedContactsWLID.getCount(); j++) {
			if (_stricmp(info->mJoinedContactsWLID[j], email) == 0)
				return;
		}

		info->sendPacket("CAL", email);
		info->proto->MSN_ChatStart(info);
	}
}

static void ChatInviteSend(HANDLE hItem, HWND hwndList, STRLIST &str, CMsnProto *ppro)
{
	if (hItem == NULL)
		hItem = (HANDLE)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_ROOT, 0);

	while (hItem) {
		if (IsHContactGroup(hItem)) {
			HANDLE hItemT = (HANDLE)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_CHILD, (LPARAM)hItem);
			if (hItemT) ChatInviteSend(hItemT, hwndList, str, ppro);
		}
		else {
			int chk = SendMessage(hwndList, CLM_GETCHECKMARK, (WPARAM)hItem, 0);
			if (chk) {
				if (IsHContactInfo(hItem)) {
					TCHAR buf[128] = _T("");
					SendMessage(hwndList, CLM_GETITEMTEXT, (WPARAM)hItem, (LPARAM)buf);

					if (buf[0]) str.insert(mir_t2a(buf));
				}
				else {
					MsnContact *msc = ppro->Lists_Get((MCONTACT)hItem);
					if (msc) str.insertn(msc->email);
				}
			}
		}
		hItem = (HANDLE)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_NEXT, (LPARAM)hItem);
	}
}


static void ChatValidateContact(MCONTACT hItem, HWND hwndList, CMsnProto* ppro)
{
	if (!ppro->MSN_IsMyContact(hItem) || ppro->isChatRoom(hItem) || ppro->MSN_IsMeByContact(hItem))
		SendMessage(hwndList, CLM_DELETEITEM, (WPARAM)hItem, 0);
}

static void ChatPrepare(MCONTACT hItem, HWND hwndList, CMsnProto* ppro)
{
	if (hItem == NULL)
		hItem = (MCONTACT)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_ROOT, 0);

	while (hItem) {
		MCONTACT hItemN = (MCONTACT)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_NEXT, (LPARAM)hItem);

		if (IsHContactGroup(hItem)) {
			MCONTACT hItemT = (MCONTACT)SendMessage(hwndList, CLM_GETNEXTITEM, CLGN_CHILD, (LPARAM)hItem);
			if (hItemT)
				ChatPrepare(hItemT, hwndList, ppro);
		}
		else if (IsHContactContact(hItem))
			ChatValidateContact(hItem, hwndList, ppro);

		hItem = hItemN;
	}
}

INT_PTR CALLBACK DlgInviteToChat(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam)
{
	InviteChatParam *param = (InviteChatParam*)GetWindowLongPtr(hwndDlg, GWLP_USERDATA);

	switch (msg) {
	case WM_INITDIALOG:
		TranslateDialogDefault(hwndDlg);

		SetWindowLongPtr(hwndDlg, GWLP_USERDATA, lParam);
		param = (InviteChatParam*)lParam;

		//		WindowSetIcon(hwndDlg, "msn");
		break;

	case WM_CLOSE:
		EndDialog(hwndDlg, 0);
		break;

	case WM_NCDESTROY:
		//		WindowFreeIcon(hwndDlg);
		delete param;
		break;

	case WM_NOTIFY:
		NMCLISTCONTROL* nmc;
		{
			nmc = (NMCLISTCONTROL*)lParam;
			if (nmc->hdr.idFrom == IDC_CCLIST) {
				switch (nmc->hdr.code) {
				case CLN_NEWCONTACT:
					if (param && (nmc->flags & (CLNF_ISGROUP | CLNF_ISINFO)) == 0)
						ChatValidateContact((MCONTACT)nmc->hItem, nmc->hdr.hwndFrom, param->ppro);
					break;

				case CLN_LISTREBUILT:
					if (param)
						ChatPrepare(NULL, nmc->hdr.hwndFrom, param->ppro);
					break;
				}
			}
		}
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_ADDSCR:
			if (param->ppro->msnLoggedIn) {
				TCHAR email[MSN_MAX_EMAIL_LEN];
				GetDlgItemText(hwndDlg, IDC_EDITSCR, email, SIZEOF(email));

				CLCINFOITEM cii = { 0 };
				cii.cbSize = sizeof(cii);
				cii.flags = CLCIIF_CHECKBOX | CLCIIF_BELOWCONTACTS;
				cii.pszText = _tcslwr(email);

				HANDLE hItem = (HANDLE)SendDlgItemMessage(hwndDlg, IDC_CCLIST, CLM_ADDINFOITEM, 0, (LPARAM)&cii);
				SendDlgItemMessage(hwndDlg, IDC_CCLIST, CLM_SETCHECKMARK, (LPARAM)hItem, 1);
			}
			break;

		case IDCANCEL:
			EndDialog(hwndDlg, IDCANCEL);
			break;

		case IDOK:
			char tEmail[MSN_MAX_EMAIL_LEN]; tEmail[0] = 0;
			ThreadData *info = NULL;
			if (param->id)
				info = param->ppro->MSN_GetThreadByChatId(param->id);
			else if (param->hContact) {
				if (!param->ppro->MSN_IsMeByContact(param->hContact, tEmail))
					info = param->ppro->MSN_GetThreadByContact(tEmail);
			}

			HWND hwndList = GetDlgItem(hwndDlg, IDC_CCLIST);
			STRLIST *cont = new STRLIST;
			ChatInviteSend(NULL, hwndList, *cont, param->ppro);

			if (info) {
				for (int i = 0; i < cont->getCount(); ++i)
					ChatInviteUser(info, (*cont)[i]);
				delete cont;
			}
			else {
				if (tEmail[0]) cont->insertn(tEmail);
				param->ppro->MsgQueue_Add("chat", 'X', NULL, 0, NULL, 0, cont);
				if (param->ppro->msnLoggedIn)
					param->ppro->msnNsThread->sendPacket("XFR", "SB");
			}

			EndDialog(hwndDlg, IDOK);
		}
		break;
	}
	return FALSE;
}

int CMsnProto::MSN_GCEventHook(WPARAM, LPARAM lParam)
{
	GCHOOK *gch = (GCHOOK*)lParam;
	if (!gch)
		return 1;

	if (_stricmp(gch->pDest->pszModule, m_szModuleName)) return 0;

	switch (gch->pDest->iType) {
	case GC_SESSION_TERMINATE:
		{
			ThreadData* thread = MSN_GetThreadByChatId(gch->pDest->ptszID);
			if (thread != NULL)
				thread->sendTerminate();
		}
		break;

	case GC_USER_MESSAGE:
		if (gch->ptszText && gch->ptszText[0]) {
			ThreadData* thread = MSN_GetThreadByChatId(gch->pDest->ptszID);
			if (thread) {
				TCHAR* pszMsg = UnEscapeChatTags(NEWTSTR_ALLOCA(gch->ptszText));
				rtrimt(pszMsg); // remove the ending linebreak
				thread->sendMessage('N', NULL, NETID_MSN, UTF8(pszMsg), 0);

				DBVARIANT dbv;
				int bError = getTString("Nick", &dbv);

				GCDEST gcd = { m_szModuleName, gch->pDest->ptszID, GC_EVENT_MESSAGE };
				GCEVENT gce = { sizeof(gce), &gcd };
				gce.dwFlags = GCEF_ADDTOLOG;
				gce.ptszNick = bError ? _T("") : dbv.ptszVal;
				gce.ptszUID = mir_a2t(MyOptions.szEmail);
				gce.time = time(NULL);
				gce.ptszText = gch->ptszText;
				gce.bIsMe = TRUE;
				CallServiceSync(MS_GC_EVENT, 0, (LPARAM)&gce);

				mir_free((void*)gce.ptszUID);
				if (!bError)
					db_free(&dbv);
			}
		}
		break;

	case GC_USER_CHANMGR:
		DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_CHATROOM_INVITE), NULL, DlgInviteToChat,
			LPARAM(new InviteChatParam(gch->pDest->ptszID, NULL, this)));
		break;

	case GC_USER_PRIVMESS:
	{
		char *email = mir_t2a(gch->ptszUID);
		MCONTACT hContact = MSN_HContactFromEmail(email);
		CallService(MS_MSG_SENDMESSAGE, hContact, 0);
		mir_free(email);
		break;
	}

	case GC_USER_LOGMENU:
		switch (gch->dwData) {
		case 10:
			DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_CHATROOM_INVITE), NULL, DlgInviteToChat,
				LPARAM(new InviteChatParam(gch->pDest->ptszID, NULL, this)));
			break;

		case 20:
			MSN_KillChatSession(gch->pDest->ptszID);
			break;
		}
		break;

	case GC_USER_NICKLISTMENU:
		MCONTACT hContact = MSN_HContactFromEmail(_T2A(gch->ptszUID));

		switch (gch->dwData) {
		case 10:
			CallService(MS_USERINFO_SHOWDIALOG, hContact, 0);
			break;

		case 20:
			CallService(MS_HISTORY_SHOWCONTACTHISTORY, hContact, 0);
			break;

		case 110:
			MSN_KillChatSession(gch->pDest->ptszID);
			break;
		}
		break;

	/*	haven't implemented in chat.dll
			case GC_USER_TYPNOTIFY:
			{
			int chatID = atoi(p);
			ThreadData* thread = MSN_GetThreadByContact((HANDLE)-chatID);
			for (int j=0; j < thread->mJoinedCount; j++)
			{
			if ((long)thread->mJoinedContacts[j] > 0)
			CallService(MS_PROTO_SELFISTYPING, (WPARAM) thread->mJoinedContacts[j], (LPARAM) PROTOTYPE_SELFTYPING_ON);
			}
			break;
			}
			*/
	}

	return 0;
}

int CMsnProto::MSN_GCMenuHook(WPARAM, LPARAM lParam)
{
	GCMENUITEMS *gcmi = (GCMENUITEMS*)lParam;

	if (gcmi == NULL || _stricmp(gcmi->pszModule, m_szModuleName)) return 0;

	if (gcmi->Type == MENU_ON_LOG) {
		static const struct gc_item Items[] =
		{
			{ LPGENT("&Invite user..."), 10, MENU_ITEM, FALSE },
			{ LPGENT("&Leave chat session"), 20, MENU_ITEM, FALSE }
		};
		gcmi->nItems = SIZEOF(Items);
		gcmi->Item = (gc_item*)Items;
	}
	else if (gcmi->Type == MENU_ON_NICKLIST) {
		char *email = mir_t2a(gcmi->pszUID);
		if (!_stricmp(MyOptions.szEmail, email)) {
			static const struct gc_item Items[] =
			{
				{ LPGENT("User &details"), 10, MENU_ITEM, FALSE },
				{ LPGENT("User &history"), 20, MENU_ITEM, FALSE },
				{ _T(""), 100, MENU_SEPARATOR, FALSE },
				{ LPGENT("&Leave chat session"), 110, MENU_ITEM, FALSE }
			};
			gcmi->nItems = SIZEOF(Items);
			gcmi->Item = (gc_item*)Items;
		}
		else {
			static const struct gc_item Items[] =
			{
				{ LPGENT("User &details"), 10, MENU_ITEM, FALSE },
				{ LPGENT("User &history"), 20, MENU_ITEM, FALSE }
			};
			gcmi->nItems = SIZEOF(Items);
			gcmi->Item = (gc_item*)Items;
		}
		mir_free(email);
	}

	return 0;
}