/*******************************************************************************
 * Breakout Cave Survey Visualizer
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/
package org.breakout;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;

import org.andork.q.QObjectTabDelimBimapper;
import org.andork.swing.async.Subtask;
import org.andork.swing.async.SubtaskStreamBimapper;
import org.breakout.model.SurveyTableModel;
import org.breakout.model.SurveyTableModel.Row;
import org.breakout.model.SurveyTableModel.SurveyTableModelCopier;

public class SurveyTableModelStreamBimapper extends SubtaskStreamBimapper<SurveyTableModel> {
	boolean closeStreams;
	boolean makeCopy;

	QObjectTabDelimBimapper<Row> rowBimapper;

	public SurveyTableModelStreamBimapper(Subtask subtask) {
		super(subtask);
		rowBimapper = QObjectTabDelimBimapper.newInstance(Row.instance)
				.addColumn("From", Row.from)
				.addColumn("To", Row.to)
				.addColumn("Distance", Row.distance)
				.addColumn("Frontsight Azimuth", Row.fsAzm)
				.addColumn("Frontsight Inclination", Row.fsInc)
				.addColumn("Backsight Azimuth", Row.bsAzm)
				.addColumn("Backsight Inclination", Row.bsInc)
				.addColumn("Left", Row.left)
				.addColumn("Right", Row.right)
				.addColumn("Up", Row.up)
				.addColumn("Down", Row.down)
				.addColumn("North", Row.north)
				.addColumn("East", Row.east)
				.addColumn("Elevation", Row.elev)
				.addColumn("Description", Row.desc)
				.addColumn("Date", Row.date)
				.addColumn("Surveyors", Row.surveyors)
				.addColumn("Comment", Row.comment)
				.addColumn("Scanned Notes", Row.scannedNotes);
	}

	public SurveyTableModelStreamBimapper closeStreams(boolean closeStreams) {
		this.closeStreams = closeStreams;
		return this;
	}

	public SurveyTableModelStreamBimapper makeCopy(boolean makeCopy) {
		this.makeCopy = makeCopy;
		return this;
	}

	@Override
	public SurveyTableModel read(InputStream in) throws Exception {
		subtask().setIndeterminate(true);

		BufferedReader reader = null;
		try {
			reader = new BufferedReader(new InputStreamReader(in));

			SurveyTableModel result = new SurveyTableModel();

			String line = reader.readLine();
			if (line == null) {
				return result;
			}

			QObjectTabDelimBimapper<Row> rowBimapper = this.rowBimapper.deriveFromHeader(line);

			int ri = 0;
			while ((line = reader.readLine()) != null) {
				result.setRow(ri++, rowBimapper.unmap(line));
			}

			return result;
		} finally {
			subtask().end();

			if (closeStreams && reader != null) {
				try {
					reader.close();
				} catch (Exception ex) {
					ex.printStackTrace();
				}
			}
		}

	}

	@Override
	public void write(SurveyTableModel model, OutputStream out) throws Exception {
		if (makeCopy) {
			SurveyTableModel copy = new SurveyTableModel();
			SurveyTableModelCopier copier = new SurveyTableModelCopier();

			copier.copyInBackground(model, copy, 1000, null);
			model = copy;
		}

		PrintStream p = null;

		subtask().setTotal(model.getRowCount());
		subtask().setCompleted(0);
		subtask().setIndeterminate(false);

		try {
			p = new PrintStream(out);

			p.println(rowBimapper.createHeader());

			for (int ri = 0; ri < model.getRowCount(); ri++) {
				p.println(rowBimapper.map(model.getRow(ri)));
				subtask().setCompleted(ri);
			}
		} finally {
			subtask().end();

			if (closeStreams && p != null) {
				try {
					p.close();
				} catch (Exception ex) {
					ex.printStackTrace();
				}
			}
		}
	}
}