/*
WhenWasIt (birthday reminder) plugin for Miranda IM

Copyright © 2006 Cristian Libotean

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 "commonheaders.h"
#include "utils.h"

int LogInit()
{
#ifdef _DEBUG
	FILE *fout = fopen(LOG_FILE, "wt");
	fclose(fout);
#endif
	return 0;
}

int Log(char *format, ...)
{
#ifdef _DEBUG
	char		str[4096];
	va_list	vararg;
	int tBytes;
	FILE *fout = fopen(LOG_FILE, "at");
	if ( !fout)
		{
//			MessageBox(0, "can't open file", NULL, MB_OK);
			return -1;
		}
	time_t tNow = time(NULL);
	struct tm *now = localtime(&tNow);
	strftime(str, sizeof(str), "%d %b %Y @ %H:%M:%S: ", now);
	fputs(str, fout);
	va_start(vararg, format);
	
	tBytes = _vsnprintf(str, sizeof(str), format, vararg);
	if (tBytes > 0)
		{
			str[tBytes] = 0;
		}

	va_end(vararg);
	if (str[strlen(str) - 1] != '\n')
		{
			strcat(str, "\n");
		}
	fputs(str, fout);
	fclose(fout);
#endif
	return 0;
}

int Info(char *title, char *format, ...)
{
	char str[4096];
	va_list vararg;
	int tBytes;
	va_start(vararg, format);
	tBytes = _vsnprintf(str, sizeof(str), format, vararg);
	if (tBytes > 0)
		{
			str[tBytes] = 0;
		}
	va_end(vararg);
	return MessageBoxA(0, str, title, MB_OK | MB_ICONINFORMATION);		
}

#define HEX_SIZE 8

char *BinToHex(int size, PBYTE data)
{
	char *szresult = NULL;
	char buffer[32] = {0}; //should be more than enough
	int maxSize = size * 2 + HEX_SIZE + 1;
	szresult = (char *) new char[ maxSize ];
	memset(szresult, 0, maxSize);
	sprintf(buffer, "%0*X", HEX_SIZE, size);
	strcpy(szresult, buffer);
	int i;
	for (i = 0; i < size; i++)
		{
			sprintf(buffer, "%02X", data[i]);
			strcpy(szresult + (HEX_SIZE + i * 2), buffer);
		}
	return szresult; 
}

void HexToBin(char *inData, ULONG &size, LPBYTE &outData)
{
	char buffer[32] = {0};
	strcpy(buffer, "0x");
	strncpy(buffer + 2, inData, HEX_SIZE);
	sscanf(buffer, "%x", &size);
	outData = (unsigned char*)new char[size*2];
	UINT i;
	//size = i;
	char *tmp = inData + HEX_SIZE;
	buffer[4] = '\0'; //mark the end of the string
	for (i = 0; i < size; i++)
		{
			strncpy(buffer + 2, &tmp[i * 2], 2);
			sscanf(buffer, "%x", &outData[i]);
		}
	i = size;
}

int GetStringFromDatabase(HANDLE hContact, char *szModule, char *szSettingName, char *szError, char *szResult, size_t size)
{
	DBVARIANT dbv = {0};
	int res = 1;
	size_t len;
	dbv.type = DBVT_ASCIIZ;
	if (DBGetContactSetting(hContact, szModule, szSettingName, &dbv) == 0)
		{
			res = 0;
			size_t tmp = strlen(dbv.pszVal);
			len = (tmp < size - 1) ? tmp : size - 1;
			strncpy(szResult, dbv.pszVal, len);
			szResult[len] = '\0';
			mir_free(dbv.pszVal);
		}
		else{
			res = 1;
			if (szError)
				{
					size_t tmp = strlen(szError);
					len = (tmp < size - 1) ? tmp : size - 1;
					strncpy(szResult, szError, len);
					szResult[len] = '\0';
				}
				else{
					szResult[0] = '\0';
				}
		}
	return res;
}

int GetStringFromDatabase(char *szSettingName, char *szError, char *szResult, size_t size)
{
	return GetStringFromDatabase(NULL, ModuleName, szSettingName, szError, szResult, size);
}


#pragma warning (disable: 4312) 
TCHAR *GetContactName(HANDLE hContact, char *szProto)
{
	CONTACTINFO ctInfo = { sizeof(ctInfo) };
	ctInfo.szProto = (szProto) ? szProto : GetContactProto(hContact);
	ctInfo.dwFlag = CNF_DISPLAY | CNF_UNICODE;
	ctInfo.hContact = hContact;
	//_debug_message("retrieving contact name for %d", hContact);
	int ret = CallService(MS_CONTACT_GETCONTACTINFO, 0, (LPARAM) &ctInfo);
	//_debug_message("	contact name %s", ctInfo.pszVal);
	TCHAR *buffer;
	if ( !ret)
		buffer = _tcsdup(ctInfo.pszVal);

	mir_free(ctInfo.pszVal);
	if (ret)
		return NULL;
	
	return buffer;
}

TCHAR *GetContactID(HANDLE hContact)
{
	return GetContactID(hContact, GetContactProto(hContact));
}

TCHAR *GetContactID(HANDLE hContact, char *szProto)
{
	CONTACTINFO ctInfo = { sizeof(ctInfo) };
	ctInfo.szProto = szProto;
	ctInfo.dwFlag = CNF_UNIQUEID | CNF_UNICODE;
	ctInfo.hContact = hContact;
	int ret = CallService(MS_CONTACT_GETCONTACTINFO, 0, (LPARAM) &ctInfo);
	TCHAR *buffer;
	if ( !ret) {
		TCHAR tmp[16];
		switch (ctInfo.type) {
		case CNFT_BYTE:
			_stprintf(tmp, _T("%d"), ctInfo.bVal);
			buffer = _tcsdup(tmp);
			break;

		case CNFT_WORD:
			_stprintf(tmp, _T("%d"), ctInfo.wVal);
			buffer = _tcsdup(tmp);
			break;

		case CNFT_DWORD:
			_stprintf(tmp, _T("%ld"), ctInfo.dVal);
			buffer = _tcsdup(tmp);
			break;

		default:
			buffer = _tcsdup(ctInfo.pszVal);
			break;
		}
	}

	mir_free(ctInfo.pszVal);
	return (!ret) ? buffer : NULL;
}

HANDLE GetContactFromID(TCHAR *szID, char *szProto)
{
	HANDLE hContact = db_find_first();
	TCHAR *szHandle;

	int found = 0;
	while (hContact) {
		char *szProto = GetContactProto(hContact);
		szHandle = GetContactID(hContact, szProto);
		if (szHandle && !_tcsicmp(szHandle, szID) && !_stricmp(szProto, szProto))
			found = 1;

		if (szHandle)
			free(szHandle);

		if (found)
			break;

		hContact = db_find_next(hContact);
	}
	return hContact;
}

HANDLE GetContactFromID(TCHAR *szID, wchar_t *szProto)
{
	char protocol[1024];
	WideCharToMultiByte(CP_ACP, 0, szProto, -1, protocol, sizeof(protocol), NULL, NULL);
	return GetContactFromID(szID, protocol);
}

void ScreenToClient(HWND hWnd, LPRECT rect)
{
	POINT pt;
	int cx = rect->right - rect->left;
	int cy = rect->bottom - rect->top;
	pt.x = rect->left;
	pt.y = rect->top;
	ScreenToClient(hWnd, &pt);
	rect->left = pt.x;
	rect->top = pt.y;
	rect->right = pt.x + cx;
	rect->bottom = pt.y + cy;
}

void AnchorMoveWindow(HWND window, const WINDOWPOS *parentPos, int anchors)
{
	if (parentPos->flags & SWP_NOSIZE)
		return;

	RECT rParent;
	GetWindowRect(parentPos->hwnd, &rParent);

	RECT rChild = AnchorCalcPos(window, &rParent, parentPos, anchors);
	MoveWindow(window, rChild.left, rChild.top, rChild.right - rChild.left, rChild.bottom - rChild.top, FALSE);
}

RECT AnchorCalcPos(HWND window, const RECT *rParent, const WINDOWPOS *parentPos, int anchors)
{
	RECT rChild;
	GetWindowRect(window, &rChild);
	ScreenToClient(parentPos->hwnd, &rChild);

	int cx = rParent->right - rParent->left;
	int cy = rParent->bottom - rParent->top;
	if ((cx == parentPos->cx) && (cy == parentPos->cy))
		return rChild;

	if (parentPos->flags & SWP_NOSIZE)
		return rChild;

	RECT rTmp;
	rTmp.left = parentPos->x - rParent->left;
	rTmp.right = (parentPos->x + parentPos->cx) - rParent->right;
	rTmp.bottom = (parentPos->y + parentPos->cy) - rParent->bottom;
	rTmp.top = parentPos->y - rParent->top;
	
	cx = (rTmp.left) ? -rTmp.left : rTmp.right;
	cy = (rTmp.top) ? -rTmp.top : rTmp.bottom;	
	
	rChild.right += cx;
	rChild.bottom += cy;
	//expanded the window accordingly, now we need to enforce the anchors
	if ((anchors & ANCHOR_LEFT) && (!(anchors & ANCHOR_RIGHT)))
		rChild.right -= cx;

	if ((anchors & ANCHOR_TOP) && (!(anchors & ANCHOR_BOTTOM)))
		rChild.bottom -= cy;

	if ((anchors & ANCHOR_RIGHT) && (!(anchors & ANCHOR_LEFT)))
		rChild.left += cx;

	if ((anchors & ANCHOR_BOTTOM) && (!(anchors & ANCHOR_TOP)))
		rChild.top += cy;

	return rChild;
}