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path: root/altoslib/AltosEepromFile.java
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/*
 * Copyright © 2013 Keith Packard <keithp@keithp.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; version 2 of the License.
 *
 * 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.
 */

package org.altusmetrum.altoslib_1;

import java.io.*;
import java.util.*;
import java.text.*;

class AltosEepromIterator implements Iterator<AltosState> {
	AltosState		state;
	Iterator<AltosEeprom>	body;
	AltosEeprom		next;
	boolean			seen;

	public boolean hasNext() {
		return !seen || body.hasNext();
	}

	public AltosState next() {
		if (seen) {
			AltosState	n = state.clone();
			AltosEeprom	e = body.next();

			e.update_state(n);
			state = n;
		}
		seen = true;
		return state;
	}

	public void remove () {
	}

	public AltosEepromIterator(AltosState start, Iterator<AltosEeprom> body) {
		this.state = start;
		this.body = body;
		this.seen = false;
	}
}

public class AltosEepromFile extends AltosStateIterable {

	AltosEepromIterable	headers;
	AltosEepromIterable	body;

	public void write_comments(PrintStream out) {
		headers.write(out);
	}

	public void write(PrintStream out) {
		headers.write(out);
		body.write(out);
	}

	public AltosEepromFile(FileInputStream input) {
		headers = new AltosEepromIterable(AltosEepromHeader.read(input));

		AltosState	state = headers.state();

		switch (state.log_format) {
		case AltosLib.AO_LOG_FORMAT_FULL:
			body = new AltosEepromIterable(AltosEepromTM.read(input));
			break;
		case AltosLib.AO_LOG_FORMAT_TINY:
		case AltosLib.AO_LOG_FORMAT_TELEMETRY:
		case AltosLib.AO_LOG_FORMAT_TELESCIENCE:
		case AltosLib.AO_LOG_FORMAT_TELEMEGA:
			break;
		case AltosLib.AO_LOG_FORMAT_TELEMINI:
		case AltosLib.AO_LOG_FORMAT_EASYMINI:
			body = new AltosEepromIterable(AltosEepromMini.read(input));
			break;
		}
	}

	int boost_tick (AltosState start) {
		AltosState	state = start.clone();
		for (AltosEeprom eeprom : body) {
			eeprom.update_state(state);
			if (state.state >= AltosLib.ao_flight_boost)
				return state.tick;
		}
		return 0;
	}

	public Iterator<AltosState> iterator() {

		AltosState		state = headers.state();
		Iterator<AltosEeprom>  	i = body.iterator();

		while (i.hasNext() && !state.valid())
			i.next().update_state(state);
		state.set_boost_tick(boost_tick(state));
		return new AltosEepromIterator(state, i);
	}
}