/* Copyright (C) Miklashevsky Roman, sss, elzor
*
* 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 "headers.h"

tstring DBGetContactSettingStringPAN(MCONTACT hContact, char const * szModule, char const * szSetting, tstring errorValue)
{
	DBVARIANT dbv;
	//if(db_get(hContact, szModule, szSetting, &dbv))
	if(db_get_ts(hContact, szModule, szSetting, &dbv))
		return errorValue;
//	if(DBVT_TCHAR == dbv.type )
		errorValue = dbv.ptszVal;
	db_free(&dbv);
	return errorValue;
}

std::string DBGetContactSettingStringPAN_A(MCONTACT hContact, char const * szModule, char const * szSetting, std::string errorValue)
{
	DBVARIANT dbv;
	//if(db_get(hContact, szModule, szSetting, &dbv))
	if(db_get_s(hContact, szModule, szSetting, &dbv))
		return errorValue;
//	if(DBVT_ASCIIZ == dbv.type )
		errorValue = dbv.pszVal;
	db_free(&dbv);
	return errorValue;
}

tstring &GetDlgItemString(HWND hwnd, int id)
{
	HWND h = GetDlgItem(hwnd, id);
	int len = GetWindowTextLength(h);
	TCHAR * buf = new TCHAR[len + 1];
	GetWindowText(h, buf, len + 1);
	static tstring s;
	s = buf;
	delete []buf;
	return s;
}

std::string &GetProtoList()
{
	static std::string s;
	return s = DBGetContactSettingStringPAN_A(NULL, pluginName, "protoList", "ICQ\r\n");
}

bool ProtoInList(std::string proto)
{
	return std::string::npos != GetProtoList().find(proto + "\r\n");
}

int CreateCListGroup(TCHAR* szGroupName)
{
	int hGroup = CallService(MS_CLIST_GROUPCREATE, 0, 0);

	TCHAR* usTmp = szGroupName;
	pcli->pfnRenameGroup(hGroup, usTmp);

	return hGroup;
}

void DeleteCListGroupsByName(TCHAR* szGroupName)
{
	BYTE ConfirmDelete = db_get_b(NULL, "CList", "ConfirmDelete", SETTING_CONFIRMDELETE_DEFAULT);
	if(ConfirmDelete)
		db_set_b(NULL, "CList", "ConfirmDelete", 0);

	TCHAR *szGroup;
	for (int i=1; (szGroup = pcli->pfnGetGroupName(i, NULL)) != NULL; i++)
		if( !wcscmp(szGroupName, szGroup))
			CallService(MS_CLIST_GROUPDELETE, i, 0);

	if(ConfirmDelete)
		db_set_b(NULL, "CList", "ConfirmDelete", ConfirmDelete);
}

int RemoveTmp(WPARAM,LPARAM)
{
	void CleanThread();
	CleanThread();
	return 0;
}

tstring variables_parse(tstring const &tstrFormat, MCONTACT hContact){
	if (gbVarsServiceExist) {
		FORMATINFO fi;
		TCHAR *tszParsed;
		tstring tstrResult;

		ZeroMemory(&fi, sizeof(fi));
		fi.cbSize = sizeof(fi);
		fi.tszFormat = _tcsdup(tstrFormat.c_str());
		fi.hContact = hContact;
		fi.flags |= FIF_TCHAR;
		tszParsed = (TCHAR *)CallService(MS_VARS_FORMATSTRING, (WPARAM)&fi, 0);
		free(fi.tszFormat);
		if (tszParsed) {
			tstrResult = tszParsed;
			mir_free(tszParsed);
			return tstrResult;
		}
	}
	return tstrFormat;
}

// case-insensitive _tcscmp
//by nullbie as i remember...
#define NEWTSTR_MALLOC(A) (A==NULL) ? NULL : _tcscpy((TCHAR*)mir_alloc(sizeof(TCHAR)*(_tcslen(A)+1)),A)
const int Stricmp(const TCHAR *str, const TCHAR *substr)
{
	int i = 0;

	TCHAR *str_up = NEWTSTR_MALLOC(str);
	TCHAR *substr_up = NEWTSTR_MALLOC(substr);

	CharUpperBuff(str_up, lstrlen(str_up));
	CharUpperBuff(substr_up, lstrlen(substr_up));

	i = _tcscmp(str_up, substr_up);

	mir_free(str_up);
	mir_free(substr_up);

	return i;
}

TCHAR* ReqGetText(DBEVENTINFO* dbei)
{
	if ( !dbei->pBlob )
		return 0;

	char * ptr=(char *)&dbei->pBlob[sizeof(DWORD)*2];
	int len=dbei->cbBlob-sizeof(DWORD)*2;
	int i=0;

	while(len && (i<4))
	{
		if(!ptr[0]) i++;
		ptr++;
		len--;
	};

	if(len)
	{
		char * tstr=(char *)mir_alloc(len+1);
		memcpy(tstr, ptr, len);
		tstr[len]=0;
		WCHAR* msg = NULL;
		msg=(dbei->flags&DBEF_UTF)?mir_utf8decodeW(tstr):mir_a2u(tstr);
		mir_free(tstr);
		return (TCHAR *)msg;
	};
	return 0;
}

BOOL IsUrlContains(TCHAR * Str)
{
	const int CountUrl=11;
	const TCHAR  URL[CountUrl][5]=
	{
		L"http",
		L"www",
		L".ru",
		L".com",
		L".de",
		L".cz",
		L".org",
		L".net",
		L".su",
		L".ua",
		L".tv"
	};

	if(Str && _tcslen(Str)>0) {
		TCHAR *StrLower = NEWTSTR_MALLOC(Str);
		CharLowerBuff(StrLower, lstrlen(StrLower));
		for (int i=0; i<CountUrl; i++)
			if(_tcsstr (StrLower, URL[i]))
			{
				mir_free(StrLower);
				return 1;
			}
		mir_free(StrLower);
	}
	return 0;
}

tstring GetContactUid(MCONTACT hContact, tstring Protocol)
{
	tstring Uid;
	TCHAR dUid[32]={0};
	char aUid[32]={0};
	char *szProto = mir_utf8encodeW(Protocol.c_str());
	CONTACTINFO ci;
	ZeroMemory((void *)&ci, sizeof(ci));

	ci.hContact = hContact;
	ci.szProto = szProto;
	ci.cbSize = sizeof(ci);

	ci.dwFlag = CNF_DISPLAYUID | CNF_TCHAR;
	if (!CallService(MS_CONTACT_GETCONTACTINFO, 0, (LPARAM) & ci)) {
		switch (ci.type) {
			case CNFT_ASCIIZ:
				Uid=ci.pszVal;
				mir_free((void *)ci.pszVal);
			break;
			case CNFT_DWORD:
				_itoa_s(ci.dVal,aUid,32,10);
				OemToChar(aUid, dUid);
				Uid=dUid;
			break;
			default:
				 Uid=_T("");
			break;
		};
	}
	mir_free(szProto);
	return Uid;
}

void LogSpamToFile(MCONTACT hContact, tstring message)
{
	if (!gbLogToFile) return;

	tstring LogStrW, LogTime, LogProtocol, LogContactId, LogContactName;
	tstring filename;
	std::fstream file;
	TCHAR pszName[MAX_PATH];

	if (hStopSpamLogDirH)
		FoldersGetCustomPathT(hStopSpamLogDirH, pszName, MAX_PATH, _T(""));
	else
		lstrcpyn(pszName, VARST( _T("%miranda_logpath%")), SIZEOF(pszName));

	filename = pszName;
	filename = filename + _T("\\stopspam_mod.log");

	file.open(filename.c_str(),std::ios::out |std::ios::app);

	// Time Log line
	time_t time_now;
	tm   *TimeNow;
	time(&time_now);
	TimeNow = localtime(&time_now);
	LogTime=_wasctime( TimeNow );
	// Time Log line

	// Name, UID and Protocol Log line
	LogProtocol=DBGetContactSettingStringPAN(hContact,"Protocol","p",_T(""));
	LogContactName=(TCHAR*)CallService(MS_CLIST_GETCONTACTDISPLAYNAME, (WPARAM) hContact, GCDNF_TCHAR);
	LogContactId=(LogProtocol==_T(""))?_T(""):GetContactUid(hContact,LogProtocol);
	// Name, UID  and Protocol Log line

	LogStrW=_T("[")+LogTime.substr(0,LogTime.length()-1)+_T("] ")+
		LogContactId+_T(" - ")+
		LogContactName+_T(" (")+
		LogProtocol+_T("): ")+
		message+_T("\n");

	char * buf=mir_u2a(LogStrW.c_str());
	file.write(buf,LogStrW.length());
	mir_free(buf);

	file.close();
}

boost::mutex clean_mutex;

void CleanProtocolTmpThread(std::string proto)
{
	while(true)
	{
		UINT status = CallProtoService(proto.c_str(), PS_GETSTATUS, 0, 0);
		if(status > ID_STATUS_OFFLINE)
			break;
		boost::this_thread::sleep(boost::posix_time::seconds(2));
	}

	std::list<MCONTACT> contacts;
	for(MCONTACT hContact = db_find_first(proto.c_str()); hContact; hContact = db_find_next(hContact, proto.c_str()))
		if(db_get_b(hContact, "CList", "NotOnList", 0)|| (_T("Not In List")== DBGetContactSettingStringPAN(hContact,"CList","Group",_T(""))))
			contacts.push_back(hContact);

	boost::this_thread::sleep(boost::posix_time::seconds(5));
	clean_mutex.lock();
	std::list<MCONTACT>::iterator end = contacts.end();
	for(std::list<MCONTACT>::iterator i = contacts.begin(); i != end; ++i)
	{
		LogSpamToFile(*i, _T("Deleted"));
		HistoryLogFunc(*i, "Deleted");
		CallService(MS_DB_CONTACT_DELETE, (WPARAM)*i, 0);
	}
	clean_mutex.unlock();
}

void CleanProtocolExclThread(std::string proto)
{
	while(true)
	{
		UINT status = CallProtoService(proto.c_str(), PS_GETSTATUS, 0, 0);
		if(status > ID_STATUS_OFFLINE)
			break;
		boost::this_thread::sleep(boost::posix_time::seconds(2));
	}

	std::list<MCONTACT> contacts;
	for(MCONTACT hContact = db_find_first(proto.c_str()); hContact; hContact = db_find_next(hContact, proto.c_str()))
		if(db_get_b(hContact, "CList", "NotOnList", 0) && db_get_b(hContact, pluginName, "Excluded", 0))
			contacts.push_back(hContact);

	boost::this_thread::sleep(boost::posix_time::seconds(5));
	clean_mutex.lock();
	std::list<MCONTACT>::iterator end = contacts.end();
	for(std::list<MCONTACT>::iterator i = contacts.begin(); i != end; ++i)
	{
		LogSpamToFile(*i, _T("Deleted"));
		HistoryLogFunc(*i, "Deleted");
		CallService(MS_DB_CONTACT_DELETE, (WPARAM)*i, 0);
	}
	clean_mutex.unlock();
}

void CleanThread()
{
	std::list<std::string> protocols;
	int count = 0;
	PROTOACCOUNT **accounts;
	ProtoEnumAccounts(&count, &accounts);
	for(int i = 0; i < count; i++)
	{
		if(!strstr(accounts[i]->szModuleName, "MetaContacts") && !strstr(accounts[i]->szModuleName, "Weather")) //not real protocols
			protocols.push_back(accounts[i]->szModuleName);
	}
	std::list<std::string>::iterator end = protocols.end();
	for(std::list<std::string>::iterator i = protocols.begin(); i != end; ++i)
	{
		if(gbDelAllTempory)
			boost::thread *thr = new boost::thread(boost::bind(&CleanProtocolTmpThread, *i));
		if(gbDelExcluded)
			boost::thread *thr = new boost::thread(boost::bind(&CleanProtocolExclThread, *i));
	}
}

void HistoryLog(MCONTACT hContact, char *data, int event_type, int flags)
{
	DBEVENTINFO Event = { sizeof(Event) };
	Event.szModule = pluginName;
	Event.eventType = event_type;
	Event.flags = flags | DBEF_UTF;
	Event.timestamp = (DWORD)time(NULL);
	Event.cbBlob = (DWORD)strlen(data)+1;
	Event.pBlob = (PBYTE)_strdup(data);
	db_event_add(hContact, &Event);
}

void HistoryLogFunc(MCONTACT hContact, std::string message)
{
	if(gbHistoryLog)
	{
		if(hContact == INVALID_CONTACT_ID)
			return;

		std::string msg = message;
		msg.append("\n");
		msg.append("Protocol: ").append(GetContactProto(hContact)).append(" Contact: ");
		msg.append(toUTF8((TCHAR*)CallService(MS_CLIST_GETCONTACTDISPLAYNAME, (WPARAM) hContact, GCDNF_TCHAR))).append(" ID: ");
		msg.append(toUTF8(GetContactUid(hContact,toUTF16(GetContactProto(hContact)))));
		HistoryLog(NULL, (char*)msg.c_str(), EVENTTYPE_MESSAGE, DBEF_READ);
	}
}

std::string toUTF8(std::wstring str)
{
	std::string ustr;
	try{
	utf8::utf16to8(str.begin(), str.end(), back_inserter(ustr));
	}
	catch(const std::exception&)
	{
		//TODO: handle utf8cpp exceptions
	}
	return ustr;
}

std::string toUTF8(std::string str)
{
	return toUTF8(toUTF16(str));
}

std::wstring toUTF16(std::string str) //convert as much as possible
{
	std::wstring ustr;
	std::string tmpstr;
	try{
	utf8::replace_invalid(str.begin(), str.end(), back_inserter(tmpstr));
	utf8::utf8to16(tmpstr.begin(), tmpstr.end(), back_inserter(ustr));
	}
	catch(const std::exception &)
	{
		//TODO: handle utf8cpp exceptions
	}
	return ustr;
}

std::string get_random_num(int length)
{
	std::string chars("123456789");
	std::string data;
	boost::random_device rng;
	boost::variate_generator<boost::random_device&, boost::uniform_int<>> gen(rng, boost::uniform_int<>(0, (int)chars.length()-1));
	for(int i = 0; i < length; ++i)
		data += chars[gen()];
	return data;
}