/*

IEView Plugin for Miranda IM
Copyright (C) 2005-2010  Piotr Piastucki

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 "stdafx.h"

// srmm stuff
#define SMF_LOG_SHOWNICK 1
#define SMF_LOG_SHOWTIME 2
#define SMF_LOG_SHOWDATES 4
#define SMF_LOG_SHOWICONS 8
#define HPPMOD "HistoryPlusPlus"

#define SRMSGSET_SHOWICONS      "ShowIcons"

#define FONTF_BOLD   1
#define FONTF_ITALIC 2
#define FONTF_UNDERLINE 4

#define DIV_FONT_NUM 7

static const char *divClassNames[] = {
	".divMessageOut", ".divMessageIn",
	".divFileOut", ".divFileIn",
	".divUrlOut", ".divUrlIn",
	".divSystem"
};

static const char *dbDivSettingNames[] = {
	"OutMes", "IncMes",
	"OutFil", "IncFil",
	"OutUrl", "IncUrl",
	"Added"
};

#define SPAN_FONT_NUM 4

static const char *spanClassNames[] = {
	".nameOut", ".nameIn",
	".timeOut", ".timeIn",
};

static const char *dbSpanSettingNames[] = {
	"Profile", "Contact",
	"ProfileDate", "ContactDate",
};

HistoryHTMLBuilder::HistoryHTMLBuilder()
{
	setLastEventType(-1);
	setLastEventTime(time(0));
	startedTime = time(0);
}

bool HistoryHTMLBuilder::isDbEventShown(const DB::EventInfo &dbei)
{
	switch (dbei.eventType) {
	case EVENTTYPE_MESSAGE:
	case EVENTTYPE_FILE:
		return 1;
	
	default:
		return dbei.isHistory();
	}
}

char *HistoryHTMLBuilder::timestampToString(time_t check)
{
	char str[80];
	TimeZone_ToString(check, "d t", str, _countof(str));

	static char szResult[512];
	mir_strncpy(szResult, ptrA(mir_utf8encode(str)), 500);
	return szResult;
}

void HistoryHTMLBuilder::loadMsgDlgFont(const char *dbSetting, LOGFONTA *lf, COLORREF *colour, COLORREF *bkgColour)
{
	char str[128];
	int style;
	DBVARIANT dbv;
	if (bkgColour) {
		mir_snprintf(str, "Back.%s", dbSetting);
		*bkgColour = db_get_dw(0, HPPMOD, str, 0xFFFFFF);
	}
	if (colour) {
		mir_snprintf(str, "Font.%s.Color", dbSetting);
		*colour = db_get_dw(0, HPPMOD, str, 0x000000);
	}
	if (lf) {
		mir_snprintf(str, "Font.%s.Size", dbSetting);
		lf->lfHeight = (char)db_get_b(0, HPPMOD, str, 10);
		lf->lfWidth = 0;
		lf->lfEscapement = 0;
		lf->lfOrientation = 0;
		mir_snprintf(str, "Font.%s.Style.Bold", dbSetting);
		style = db_get_b(0, HPPMOD, str, 0);
		lf->lfWeight = style & FONTF_BOLD ? FW_BOLD : FW_NORMAL;
		mir_snprintf(str, "Font.%s.Style.Italic", dbSetting);
		style = db_get_b(0, HPPMOD, str, 0) << 1;
		lf->lfItalic = style & FONTF_ITALIC ? 1 : 0;
		lf->lfUnderline = style & FONTF_UNDERLINE ? 1 : 0;
		lf->lfStrikeOut = 0;
		mir_snprintf(str, "Font.%s.Charset", dbSetting);
		lf->lfCharSet = db_get_b(0, HPPMOD, str, DEFAULT_CHARSET);
		lf->lfOutPrecision = OUT_DEFAULT_PRECIS;
		lf->lfClipPrecision = CLIP_DEFAULT_PRECIS;
		lf->lfQuality = DEFAULT_QUALITY;
		lf->lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
		mir_snprintf(str, "Font.%s.Name", dbSetting);
		if (db_get_s(0, HPPMOD, str, &dbv))
			strncpy_s(lf->lfFaceName, "Verdana", _TRUNCATE);
		else {
			strncpy_s(lf->lfFaceName, dbv.pszVal, _TRUNCATE);
			db_free(&dbv);
		}
	}
}

const wchar_t* HistoryHTMLBuilder::getTemplateFilename(ProtocolSettings *protoSettings)
{
	return protoSettings->getHistoryTemplateFilename();
}

int HistoryHTMLBuilder::getFlags(ProtocolSettings *protoSettings)
{
	return protoSettings->getHistoryFlags();
}

void HistoryHTMLBuilder::buildHead(IEView *view, IEVIEWEVENT *event)
{
	LOGFONTA lf;
	int i;
	COLORREF color, bkgColor;

	ProtocolSettings *protoSettings = getHistoryProtocolSettings(event->hContact);
	if (protoSettings == nullptr)
		return;

	if (protoSettings->getHistoryMode() == Options::MODE_TEMPLATE) {
		buildHeadTemplate(view, event, protoSettings);
		return;
	}

	CMStringA str;
	if (protoSettings->getHistoryMode() == Options::MODE_CSS) {
		auto *externalCSS = protoSettings->getHistoryCssFilename();
		str.AppendFormat("<html><head><link rel=\"stylesheet\" href=\"%S\"/></head><body class=\"body\">\n", externalCSS);
	}
	else {
		str.Append("<html><head>");
		str.Append("<style type=\"text/css\">\n");
		COLORREF lineColor = db_get_dw(0, HPPMOD, "LineColour", 0xFFFFFF);
		lineColor = 0;
		bkgColor = 0xFFFFFF;
		if (protoSettings->getHistoryFlags() & Options::LOG_IMAGE_ENABLED)
			str.AppendFormat(".body {padding: 2px; text-align: left; background-attachment: %s; background-color: #%06X;  background-image: url('%s'); overflow: auto;}\n",
				protoSettings->getHistoryFlags() & Options::LOG_IMAGE_SCROLL ? "scroll" : "fixed", bkgColor, protoSettings->getHistoryBackgroundFilename());
		else
			str.AppendFormat(".body {margin: 0px; text-align: left; background-color: #%06X; overflow: auto;}\n", bkgColor);

		str.Append(".link {color: #0000FF; text-decoration: underline;}\n");
		str.Append(".img {float: left; vertical-align: middle;}\n");
		for (i = 0; i < DIV_FONT_NUM; i++) {
			loadMsgDlgFont(dbDivSettingNames[i], &lf, &color, &bkgColor);
			if (protoSettings->getHistoryFlags() & Options::LOG_IMAGE_ENABLED)
				str.AppendFormat("%s {float: left; padding-left: 2px; padding-right: 2px; word-wrap: break-word; border-top: 1px solid #%06X; font-family: %s; font-size: %dpt; font-weight: %s; color: #%06X; %s}\n",
					divClassNames[i],
					(int)lineColor,
					lf.lfFaceName,
					lf.lfHeight,
					lf.lfWeight >= FW_BOLD ? "bold" : "normal",
					(int)(((color & 0xFF) << 16) | (color & 0xFF00) | ((color & 0xFF0000) >> 16)),
					lf.lfItalic ? "font-style: italic;" : "");
			else
				str.AppendFormat("%s {float: left; padding-left: 2px; padding-right: 2px; word-wrap: break-word; border-top: 1px solid #%06X; background-color: #%06X; font-family: %s; font-size: %dpt; font-weight: %s; color: #%06X; %s}\n",
					divClassNames[i],
					(int)lineColor,
					(int)(((bkgColor & 0xFF) << 16) | (bkgColor & 0xFF00) | ((bkgColor & 0xFF0000) >> 16)),
					lf.lfFaceName,
					lf.lfHeight,
					lf.lfWeight >= FW_BOLD ? "bold" : "normal",
					(int)(((color & 0xFF) << 16) | (color & 0xFF00) | ((color & 0xFF0000) >> 16)),
					lf.lfItalic ? "font-style: italic;" : "");
		}
		for (i = 0; i < SPAN_FONT_NUM; i++) {
			loadMsgDlgFont(dbSpanSettingNames[i], &lf, &color, nullptr);
			str.AppendFormat("%s {float: %s; font-family: %s; font-size: %dpt; font-weight: %s; color: #%06X; %s }\n",
				spanClassNames[i],
				i < 2 ? "left" : "right; clear: right;",
				lf.lfFaceName,
				lf.lfHeight,
				lf.lfWeight >= FW_BOLD ? "bold" : "normal",
				(int)(((color & 0xFF) << 16) | (color & 0xFF00) | ((color & 0xFF0000) >> 16)),
				lf.lfItalic ? "font-style: italic;" : "");
		}
		str.Append("</style></head><body class=\"body\">\n");
	}

	if (!str.IsEmpty())
		view->write(str);

	setLastEventType(-1);
}

void HistoryHTMLBuilder::appendEventNonTemplate(IEView *view, IEVIEWEVENT *event)
{
	uint32_t dwFlags = db_get_b(0, HPPMOD, SRMSGSET_SHOWICONS, 0) ? SMF_LOG_SHOWICONS : 0;
	IEVIEWEVENTDATA *eventData = event->eventData;
	for (int eventIdx = 0; eventData != nullptr && (eventIdx < event->count || event->count == -1); eventData = eventData->next, eventIdx++) {
		CMStringA str;
		bool isSent = (eventData->dwFlags & IEEDF_SENT) != 0;
		if (eventData->iType == IEED_EVENT_MESSAGE || eventData->iType == IEED_EVENT_STATUSCHANGE || eventData->iType == IEED_EVENT_FILE) {
			ptrA szName, szText;
			if (eventData->dwFlags & IEEDF_UNICODE_NICK)
				szName = encodeUTF8(event->hContact, eventData->szNick.w, ENF_NAMESMILEYS, true);
			else
				szName = encodeUTF8(event->hContact, eventData->szNick.a, ENF_NAMESMILEYS, true);

			if (eventData->dwFlags & IEEDF_UNICODE_TEXT)
				szText = encodeUTF8(event->hContact, eventData->szText.w, ENF_ALL, isSent);
			else
				szText = encodeUTF8(event->hContact, eventData->szText.a, event->codepage, ENF_ALL, isSent);

			/* History++-specific formatting */
			const char *iconFile = nullptr;
			switch (eventData->iType) {
			case IEED_EVENT_SYSTEM:
				str.AppendFormat("<div class=\"%s\">", "divSystem");
				break;
			case IEED_EVENT_FILE:
				iconFile = "file.gif";
				str.AppendFormat("<div class=\"%s\">", isSent ? "divFileOut" : "divFileIn");
				break;
			default:
				iconFile = "message.gif";
				str.AppendFormat("<div class=\"%s\">", isSent ? "divMessageOut" : "divMessageIn");
			}
			if (dwFlags & SMF_LOG_SHOWICONS && iconFile != nullptr)
				Utils::appendIcon(str, iconFile);
			else
				str.Append(" ");

			str.AppendFormat("<span class=\"%s\">%s:</span>", isSent ? "nameOut" : "nameIn", szName.get());
			str.AppendFormat("<span class=\"%s\">%s</span><br>", isSent ? "timeOut" : "timeIn", timestampToString(eventData->time));
			if (eventData->iType == IEED_EVENT_FILE)
				str.AppendFormat("%s:<br> %s", isSent ? Translate("Outgoing File Transfer") : Translate("Incoming File Transfer"), szText.get());
			else
				str.Append(szText);

			str.Append("</div>\n");
			setLastEventType(MAKELONG(eventData->dwFlags, eventData->iType));
			setLastEventTime(eventData->time);
		}

		if (!str.IsEmpty())
			view->write(str);
	}
	view->documentClose();
}

void HistoryHTMLBuilder::appendEvent(IEView *view, IEVIEWEVENT *event)
{
	ProtocolSettings *protoSettings = getHistoryProtocolSettings(event->hContact);
	if (protoSettings == nullptr)
		return;

	if (protoSettings->getHistoryMode() & Options::MODE_TEMPLATE)
		appendEventTemplate(view, event, protoSettings);
	else
		appendEventNonTemplate(view, event);
}