/*
 * #%L
 * SciJava Common shared library for SciJava software.
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 * Wisconsin-Madison, Broad Institute of MIT and Harvard, Max Planck
 * Institute of Molecular Cell Biology and Genetics, University of
 * Konstanz, and KNIME GmbH.
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 *    this list of conditions and the following disclaimer.
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package org.scijava.io.console;

import java.io.IOException;
import java.util.LinkedList;

import org.scijava.console.AbstractConsoleArgument;
import org.scijava.console.ConsoleArgument;
import org.scijava.display.DisplayService;
import org.scijava.io.IOService;
import org.scijava.log.LogService;
import org.scijava.plugin.Parameter;
import org.scijava.plugin.Plugin;
import org.scijava.startup.StartupService;

/**
 * Handles the {@code --open} command line argument.
 * 
 * @author Curtis Rueden
 */
@Plugin(type = ConsoleArgument.class)
public class OpenArgument extends AbstractConsoleArgument {

	@Parameter(required = false)
	private IOService ioService;

	@Parameter(required = false)
	private DisplayService displayService;

	@Parameter(required = false)
	private StartupService startupService;

	@Parameter(required = false)
	private LogService log;

	// -- Constructor --

	public OpenArgument() {
		super(2, "--open");
	}

	// -- ConsoleArgument methods --

	@Override
	public void handle(final LinkedList<String> args) {
		if (!supports(args)) return;

		args.removeFirst(); // --open
		final String source = args.removeFirst();

		// open the source after the UI is shown
		startupService.addOperation(() -> {
			try {
				final Object o = ioService.open(source);
				displayService.createDisplay(o);
			}
			catch (final IOException exc) {
				if (log != null) log.error(exc);
			}
		});
	}

	// -- Typed methods --

	@Override
	public boolean supports(final LinkedList<String> args) {
		return startupService != null && ioService != null &&
			displayService != null && super.supports(args);
	}
}
