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package net.ess3.update.states;
import java.util.List;
import org.bukkit.entity.Player;
import net.ess3.update.UpdateCheck;
import net.ess3.update.VersionInfo;
public class Changelog extends AbstractState
{
private static final int CHANGES_PER_PAGE = 5;
private transient int page = 0;
private transient boolean confirmed = false;
private transient final List<String> changes;
private transient final int pages;
public Changelog(final StateMap stateMap)
{
super(stateMap);
changes = getChanges();
pages = changes.size() / CHANGES_PER_PAGE + (changes.size() % CHANGES_PER_PAGE > 0 ? 1 : 0);
}
@Override
public AbstractState getNextState()
{
return confirmed ? getState(EssentialsChat.class) : this;
}
@Override
public boolean guessAnswer()
{
if (pages == 0)
{
confirmed = true;
}
return confirmed;
}
private List<String> getChanges()
{
final UpdateCheck updateCheck = getState(UpdateOrInstallation.class).getUpdateCheck();
final VersionInfo versionInfo = updateCheck.getNewVersionInfo();
return versionInfo.getChangelog();
}
@Override
public void askQuestion(final Player sender)
{
if (pages > 1)
{
sender.sendMessage("Changelog, page " + page + " of " + pages + ":");
}
else
{
sender.sendMessage("Changelog:");
}
for (int i = page * CHANGES_PER_PAGE; i < Math.min(page * CHANGES_PER_PAGE + CHANGES_PER_PAGE, changes.size()); i++)
{
sender.sendMessage(changes.get(i));
}
if (pages > 1)
{
sender.sendMessage("Select a page by typing the numbers 1 to " + pages + " to view all changes and then type confirm or abort.");
}
else
{
sender.sendMessage("Type confirm to update Essentials or abort to cancel the update.");
}
}
@Override
public boolean reactOnAnswer(final String answer)
{
if (answer.equalsIgnoreCase("confirm"))
{
confirmed = true;
return true;
}
if (answer.matches("[0-9]+"))
{
final int page = Integer.parseInt(answer);
if (page <= pages && page > 0)
{
this.page = page - 1;
return true;
}
}
return false;
}
}
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