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Utility classes for creating SSH enabled commands with Maverick Synergy
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package com.sshtools.commands;

import java.util.Optional;
import java.util.concurrent.Callable;

import com.sshtools.jaul.Phase;

import picocli.CommandLine.Command;
import picocli.CommandLine.Model.CommandSpec;
import picocli.CommandLine.Parameters;
import picocli.CommandLine.Spec;

public class Updates {

	public static Integer call(JadaptiveCommand root) throws Exception {
		var updateService = root.getUpdateService();
		var terminal = root.getTerminal();
		updateService.checkForUpdate();
		if (updateService.isNeedsUpdating()) {
			terminal.messageln("Updating. [{0} -> {1}]", root.getVersion(), updateService.getAvailableVersion());
			updateService.update();
		} else
			terminal.messageln("No update to {0} available.", root.getVersion());
		return 0;
	}
	
	@Command(name = "check", usageHelpAutoWidth = true, mixinStandardHelpOptions = true, description = "Check for update to this application.")
	public static class Check implements Callable {
		
		@Spec
		CommandSpec spec;
		
		@Override
		public Integer call() throws Exception {
			JadaptiveCommand root = JadaptiveCommand.getRootCommand(spec);
			var updateService = root.getUpdateService();
			var terminal = root.getTerminal();
			updateService.checkForUpdate();
			if(updateService.isNeedsUpdating()) {
				terminal.messageln("Updates available [{0} -> {1}]", root.getVersion(), updateService.getAvailableVersion());
			}
			else
				terminal.messageln("No update to {0} available.", root.getVersion());
			return 0;
		}
	}


	@Command(name = "phase", usageHelpAutoWidth = true, mixinStandardHelpOptions = true, description = "Set or show the current update setOrGetPhase.")
	public static class SetOrGetPhase implements Callable {

		@Spec
		CommandSpec spec;

		@Parameters(arity = "0..1", description = "Phase to set. If ommitted, current phase will be shown.")
		Optional phase;

		@Override
		public Integer call() throws Exception {
			JadaptiveCommand root = JadaptiveCommand.getRootCommand(spec);
			var terminal = root.getTerminal();
			phase.ifPresentOrElse(p -> root.getUpdateService().getContext().setPhase(p),
					() -> terminal.messageln("Current phase: {0}", root.getUpdateService().getContext().getPhase()));
			return 0;
		}
	}

	@Command(name = "list-phases", usageHelpAutoWidth = true, mixinStandardHelpOptions = true, description = "Set or show the current update setOrGetPhase.")
	public static class ListPhases implements Callable {

		@Spec
		CommandSpec spec;

		@Override
		public Integer call() throws Exception {
			JadaptiveCommand root = JadaptiveCommand.getRootCommand(spec);
			var terminal = root.getTerminal();
			for(var p : root.getUpdateService().getPhases()) {
				terminal.messageln(p.name());
			}
			return 0;
		}
	}

}