/*  Merge/Text.h
 *
 *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
 *
 *  This file is part of gLabels-qt.
 *
 *  gLabels-qt 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.
 *
 *  gLabels-qt 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 gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef merge_Text_h
#define merge_Text_h

#include "Merge.h"

#include <QFile>


namespace merge
{
	
	///
	/// Text Merge Backend
	///
	struct Text : public Merge
	{

		/////////////////////////////////
		// Life Cycle
		/////////////////////////////////
	protected:
		Text( QChar delimiter, bool line1HasKeys );
		Text( const Text* merge );
		virtual ~Text();


		/////////////////////////////////
		// Implementation of virtual methods
		/////////////////////////////////
	public:
		QStringList keys() const;
		QString primaryKey() const;
	protected:
		void open();
		void close();
		Record* readNextRecord();


		/////////////////////////////////
		// Private methods
		/////////////////////////////////
		QString keyFromIndex( int iField ) const;
		QStringList parseLine();
	

		/////////////////////////////////
		// Private data
		/////////////////////////////////
	private:
		QChar mDelimeter;
		bool  mLine1HasKeys;

		QFile          mFile;
		QStringList    mKeys;
		int            mNFieldsMax;
	};

}

#endif // merge_Text_h