1 files changed, 91 insertions, 0 deletions
diff --git a/EssentialsUpdate/src/com/earth2me/essentials/update/states/Changelog.java b/EssentialsUpdate/src/com/earth2me/essentials/update/states/Changelog.java
new file mode 100644
index 000000000..36ae93c4d
--- /dev/null
+++ b/EssentialsUpdate/src/com/earth2me/essentials/update/states/Changelog.java
@@ -0,0 +1,91 @@
+package com.earth2me.essentials.update.states;
+
+import com.earth2me.essentials.update.UpdateCheck;
+import com.earth2me.essentials.update.VersionInfo;
+import java.util.List;
+import org.bukkit.entity.Player;
+
+
+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 to update Essentials.");
+		}
+		else
+		{
+			sender.sendMessage("Type confirm to update Essentials.");
+		}
+	}
+
+	@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;
+	}
+}