/*
 * scribiu -- read notebooks and voice memos from Livescribe pens
 * Copyright (C) 2021 Javier S. Pedro <javier@javispedro.com>
 *
 * 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 3 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 <QtCore/QDebug>
#include <QtCore/QTextStream>
#include "stftxtexport.h"

class StfToTxtStrokeList : public StfReader::StrokeHandler {
	QTextStream _out;
	QPoint _lastP;
	qint64 _lastTime;

public:
	StfToTxtStrokeList(QIODevice *out)
	    : _out(out) {
	}

	bool startStroke(const QPoint& p, int force, qint64 time) {
		_out << time << " penDown " << p.x() << ' ' << p.y() << ' ' << force << '\n';
		_lastP = p;
		_lastTime = time;
		return true;
	}

	bool strokePoint(const QPoint& p, int force, qint64 time) {
		_out << time << " penMove " << p.x() << ' ' << p.y() << ' ' << force << '\n';
		_lastP = p;
		_lastTime = time;
		return true;
	}

	bool endStroke(qint64 time) {
		_out << time << " penUp " << _lastP.x() << ' ' << _lastP.y() << ' ' << 0 << '\n';
		return true;
	}
};

StfTxtExport::StfTxtExport(AfdNotebook *nb)
    : _nb(nb)
{
}

void StfTxtExport::exportStrokeList(QIODevice *out, int pageNum)
{
	QStringList pens = _nb->penSerials();
	if (pens.isEmpty()) return;

	QStringList strokeFiles = _nb->strokeFiles(pens.first(), pageNum);
	foreach (const QString &strokeFile, strokeFiles) {
		QFile in(strokeFile);
		if (!in.open(QIODevice::ReadOnly)) {
			qWarning() << "Could not open stroke file:" << strokeFile;
			continue;
		}

		StfToTxtStrokeList h(out);
		StfReader r;
		r.setStrokeHandler(&h);
		if (!r.parse(&in)) {
			qWarning() << "Could not open parse file:" << strokeFile;
			continue;
		}
	}
}