#include "Mra.h"
#include "MraRTFMsg.h"


#define COLORTABLE_COUNT	8
#define RTF_COLORTBLCOLOURS "\\red255\\green0\\blue0;\\red0\\green255\\blue0;\\red0\\green0\\blue255;\\red255\\green0\\blue255;\\red255\\green255\\blue0;\\red0\\green255\\blue255;\\red0\\green0\\blue0;\\red255\\green255\\blue255;" 
static const LPSTR lpszColours[COLORTABLE_COUNT] = 
{
	"red", 
	"green", 
	"blue", 
	"magenta", 
	"yellow", 
	"cyan", 
	"black", 
	"white"
};

#define CRLF "\r\n"
#define PAR "\\par "


#define BB_COLOR_TAG	"[color="
#define SYMBOLS_COUNT	19
static const LPSTR lpszSimbols[SYMBOLS_COUNT] = 
{
	"\r\n", 
	"\\", 
	"{", 
	"}", 
	"[b]", 
	"[/b]", 
	"[u]", 
	"[/u]", 
	"[i]", 
	"[/i]", 
	"[/color]", 
	"[color = red]", 
	"[color = green]", 
	"[color = blue]", 
	"[color = magenta]", 
	"[color = yellow]", 
	"[color = cyan]", 
	"[color = black]", 
	"[color = white]", 
};

static const size_t dwcSimbolsCount[SYMBOLS_COUNT] = 
{
	2, 
	1, 
	1, 
	1, 
	3, 
	4, 
	3, 
	4, 
	3, 
	4, 
	8, 
	11, 
	13, 
	12, 
	15, 
	14, 
	12, 
	13, 
	13, 
};

static const LPSTR lpszRTFTags[SYMBOLS_COUNT] = 
{
	"\\par", 
	"\\\\", 
	"\\{", 
	"\\}", 
	"{\\b ", 
	"}", 
	"{\\ul ", 
	"}", 
	"{\\i ", 
	"}", 
	"}", 
	"{\\cf2 ", 
	"{\\cf3 ", 
	"{\\cf4 ", 
	"{\\cf5 ", 
	"{\\cf6 ", 
	"{\\cf7 ", 
	"{\\cf8 ", 
	"{\\cf9 ", 
};

static const size_t dwcRTFTagsCount[SYMBOLS_COUNT] = 
{
	4, 2, 2, 2, 4, 1, 5, 1, 4, 1, 1, 6, 6, 6, 6, 6, 6, 6, 6
};

DWORD MraTextToRTFData(LPSTR lpszMessage, size_t dwMessageSize, LPSTR lpszMessageConverted, size_t dwMessageConvertedBuffSize, size_t *pdwMessageConvertedSize);

BOOL MraIsMessageFlashAnimation(LPCWSTR lpwszMessage, size_t dwMessageSize)
{
	dwMessageSize *= sizeof(WCHAR);
	LPWSTR lpwszFound = (LPWSTR)MemoryFind(0, lpwszMessage, dwMessageSize, L"<SMILE>id = flas", 28);
	if (lpwszFound)
		if (MemoryFind(((lpwszFound-lpwszMessage)+32), lpwszMessage, dwMessageSize, L"'</SMILE>", 18))
			return TRUE;

	return FALSE;
}

DWORD MraTextToRTFData(LPSTR lpszMessage, size_t dwMessageSize, LPSTR lpszMessageConverted, size_t dwMessageConvertedBuffSize, size_t *pdwMessageConvertedSize)
{
	if (lpszMessage && dwMessageSize && lpszMessageConverted && dwMessageConvertedBuffSize) {
		BYTE tm, bCurByte;
		LPSTR lpszMessageConvertedCur, lpszMessageConvertedMax;
		size_t i;

		lpszMessageConvertedCur = lpszMessageConverted;
		lpszMessageConvertedMax = (lpszMessageConverted+dwMessageConvertedBuffSize);
		for (i = 0; i < dwMessageSize && lpszMessageConvertedMax-lpszMessageConvertedCur > 3; i++) {
			*((WORD*)lpszMessageConvertedCur) = *((WORD*)"\\'");
			bCurByte = (*((BYTE*)lpszMessage+i));
			tm = (bCurByte>>4)&0xf;
			lpszMessageConvertedCur[2] = (tm>9)? ('a'+tm-10):('0'+tm);

			tm = bCurByte&0xf;
			lpszMessageConvertedCur[3] = (tm>9)? ('a'+tm-10):('0'+tm);
			lpszMessageConvertedCur += 4;
			(*((BYTE*)lpszMessageConvertedCur)) = 0;
		}
		if (pdwMessageConvertedSize)
			*pdwMessageConvertedSize = lpszMessageConvertedCur - lpszMessageConverted;
		return NO_ERROR;
	}
	
	if (pdwMessageConvertedSize)
		*pdwMessageConvertedSize = 0;
	return ERROR_INVALID_HANDLE;
}

DWORD MraSymbolsToRTFTags(DWORD dwFlags, LPSTR lpszMessage, size_t dwMessageSize, LPSTR lpszMessageConverted, size_t dwMessageConvertedBuffSize, size_t *pdwMessageConvertedSize)
{
	DWORD dwRetErrorCode = NO_ERROR;
	LPSTR lpszFounded[SYMBOLS_COUNT], lpszMessageConvertedCur, lpszMessageCur, lpszMessageCurPrev, lpszMessageConvertedMax;
	size_t i, dwFirstFoundIndex = 0, dwFoundCount = 0, dwMemPartToCopy;

	lpszMessageCurPrev = lpszMessage;
	lpszMessageConvertedCur = lpszMessageConverted;
	lpszMessageConvertedMax = (lpszMessageConverted+dwMessageConvertedBuffSize);
	for (i = 0; i < SYMBOLS_COUNT; i++) { // loking for first time
		lpszFounded[i] = (LPSTR)MemoryFind((lpszMessageCurPrev-lpszMessage), lpszMessage, dwMessageSize, lpszSimbols[i], dwcSimbolsCount[i]);
		if (lpszFounded[i]) dwFoundCount++;
	}

	while (dwFoundCount) {
		for (i = 0;i<SYMBOLS_COUNT;i++)
			if (lpszFounded[i] && (lpszFounded[i]<lpszFounded[dwFirstFoundIndex] || lpszFounded[dwFirstFoundIndex] == NULL))
				dwFirstFoundIndex = i;

		if (lpszFounded[dwFirstFoundIndex]) { // found
			dwMemPartToCopy = (lpszFounded[dwFirstFoundIndex]-lpszMessageCurPrev);
			if (lpszMessageConvertedMax > (lpszMessageConvertedCur+(dwMemPartToCopy+dwcRTFTagsCount[dwFirstFoundIndex]))) {
				MraTextToRTFData(lpszMessageCurPrev, dwMemPartToCopy, lpszMessageConvertedCur, (lpszMessageConvertedMax-lpszMessageConvertedCur), &i);lpszMessageConvertedCur += i;
				memmove(lpszMessageConvertedCur, lpszRTFTags[dwFirstFoundIndex], dwcRTFTagsCount[dwFirstFoundIndex]);lpszMessageConvertedCur += dwcRTFTagsCount[dwFirstFoundIndex];
				lpszMessageCurPrev = (lpszFounded[dwFirstFoundIndex]+dwcSimbolsCount[dwFirstFoundIndex]);

				for (i = 0;i<SYMBOLS_COUNT;i++) { // looking for the next time
					if (lpszFounded[i] && lpszFounded[i] < lpszMessageCurPrev) {
						dwFoundCount--;// вычитаем тут, чтобы учесть схожие смайлы: "):-(" и ":-("
						lpszFounded[i] = (LPSTR)MemoryFind((lpszMessageCurPrev-lpszMessage), lpszMessage, dwMessageSize, lpszSimbols[i], dwcSimbolsCount[i]);
						if (lpszFounded[i]) dwFoundCount++;
					}
				}
			}
			else {
				dwRetErrorCode = ERROR_BUFFER_OVERFLOW;
				DebugBreak();
				break;
			}
		}
	}

	lpszMessageCur = (lpszMessage+dwMessageSize);
	MraTextToRTFData(lpszMessageCurPrev, (lpszMessageCur-lpszMessageCurPrev), lpszMessageConvertedCur, (lpszMessageConvertedMax-lpszMessageConvertedCur), &i);lpszMessageConvertedCur += i;
	*((WORD*)lpszMessageConvertedCur) = 0;

	if (pdwMessageConvertedSize)
		*pdwMessageConvertedSize = lpszMessageConvertedCur - lpszMessageConverted;

	return(dwRetErrorCode);
}

DWORD CMraProto::MraConvertToRTFW(LPCWSTR lpwszMessage, size_t dwMessageSize, LPSTR lpszMessageRTF, size_t dwMessageRTFBuffSize, size_t *pdwMessageRTFSize)
{
	if (!lpwszMessage || !lpszMessageRTF)
		return ERROR_INVALID_HANDLE;

	if ((dwMessageSize+1024) > dwMessageRTFBuffSize) {
		if (pdwMessageRTFSize)
			*pdwMessageRTFSize = dwMessageSize;
		return ERROR_BUFFER_OVERFLOW;
	}

	mir_ptr<CHAR> lpszMessage((LPSTR)mir_calloc(dwMessageSize+32));
	if (!lpszMessage)
		return GetLastError();

	LPSTR lpszMessageRTFCur = lpszMessageRTF;
	size_t dwtm;
	DWORD dwRTFFontColour, dwFontSize;
	LOGFONT lf = {0};

	WideCharToMultiByte(MRA_CODE_PAGE, 0, lpwszMessage, dwMessageSize, lpszMessage, (dwMessageSize+32), NULL, NULL);

	dwRTFFontColour = mraGetDword(NULL, "RTFFontColour", MRA_DEFAULT_RTF_FONT_COLOUR);
	if ( !mraGetContactSettingBlob(NULL, "RTFFont", &lf, sizeof(LOGFONT), NULL)) {
		HDC hDC = GetDC(NULL);// kegl
		lf.lfCharSet = MRA_DEFAULT_RTF_FONT_CHARSET;
		lf.lfHeight = -MulDiv(MRA_DEFAULT_RTF_FONT_SIZE, GetDeviceCaps(hDC, LOGPIXELSY), 72);
		lstrcpynW(lf.lfFaceName, MRA_DEFAULT_RTF_FONT_NAME, LF_FACESIZE);
		ReleaseDC(NULL, hDC);
	}
	dwFontSize = ((-lf.lfHeight)+(((-lf.lfHeight)+4)/8));

	lpszMessageRTFCur += mir_snprintf(lpszMessageRTFCur, (dwMessageRTFBuffSize-((size_t)lpszMessageRTFCur-(size_t)lpszMessageRTF)), "{\\rtf1\\ansi\\ansicpg1251\\deff0\\deflang1049{\\fonttbl{\\f0\\fnil\\fcharset%lu %s;}}\r\n", lf.lfCharSet, lf.lfFaceName);

	if (MemoryFind(0, lpszMessage, dwMessageSize, BB_COLOR_TAG, (sizeof(BB_COLOR_TAG)-1)))
		lpszMessageRTFCur += mir_snprintf(lpszMessageRTFCur, (dwMessageRTFBuffSize-((size_t)lpszMessageRTFCur-(size_t)lpszMessageRTF)), "{\\colortbl;\\red%lu\\green%lu\\blue%lu;%s}\r\n", (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtBlue, (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtGreen, (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtRed, RTF_COLORTBLCOLOURS);
	else
		lpszMessageRTFCur += mir_snprintf(lpszMessageRTFCur, (dwMessageRTFBuffSize-((size_t)lpszMessageRTFCur-(size_t)lpszMessageRTF)), "{\\colortbl;\\red%lu\\green%lu\\blue%lu;}\r\n", (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtBlue, (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtGreen, (*((RGBTRIPLE*)&dwRTFFontColour)).rgbtRed);

	LPSTR	lpszNotfink = "", 
			lpszBold = ((lf.lfWeight == FW_BOLD)? "\\b1":lpszNotfink), 
			lpszItalic = (lf.lfItalic? "\\i1":lpszNotfink), 
			lpszUnderline = (lf.lfUnderline? "\\ul1":lpszNotfink), 
			lpszStrikeOut = (lf.lfStrikeOut? "\\strike1":lpszNotfink);
	lpszMessageRTFCur += mir_snprintf(lpszMessageRTFCur, (dwMessageRTFBuffSize-((size_t)lpszMessageRTFCur-(size_t)lpszMessageRTF)), "\\viewkind4\\uc1\\pard\\cf1\\f0\\fs%lu%s%s%s%s", dwFontSize, lpszBold, lpszItalic, lpszUnderline, lpszStrikeOut);

	if ( !MraSymbolsToRTFTags(0, lpszMessage, dwMessageSize, lpszMessageRTFCur, (dwMessageRTFBuffSize-(lpszMessageRTFCur-lpszMessageRTF)), &dwtm)) {
		lpszMessageRTFCur += dwtm;
		if ((lpszMessageRTF+dwMessageRTFBuffSize) >= (lpszMessageRTFCur+sizeof(PAR)+sizeof(CRLF)+2)) {
			memmove(lpszMessageRTFCur, PAR, sizeof(PAR));lpszMessageRTFCur += (sizeof(PAR)-1);
			memmove(lpszMessageRTFCur, CRLF, sizeof(CRLF));lpszMessageRTFCur += (sizeof(CRLF)-1);
			memmove(lpszMessageRTFCur, "}", 2);lpszMessageRTFCur += 2;
			if (pdwMessageRTFSize) (*pdwMessageRTFSize) = (lpszMessageRTFCur-lpszMessageRTF);
			DebugPrintCRLFA(lpszMessageRTF);
			return NO_ERROR;
		}

		if (pdwMessageRTFSize) *pdwMessageRTFSize = dwMessageRTFBuffSize+1024;
		return ERROR_BUFFER_OVERFLOW;
	}

	return 0;
}