/*
* This file is part of Skript.
*
* Skript 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, either version 3 of the License, or
* (at your option) any later version.
*
* Skript 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 Skript. If not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright 2011, 2012 Peter Güttinger
*
*/
package ch.njol.skript.hooks.regions;
import java.io.IOException;
import java.io.StreamCorruptedException;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import me.ryanhamshire.GriefPrevention.Claim;
import me.ryanhamshire.GriefPrevention.DataStore;
import me.ryanhamshire.GriefPrevention.GriefPrevention;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.OfflinePlayer;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.Skript;
import ch.njol.skript.hooks.regions.classes.Region;
import ch.njol.skript.util.AABB;
import ch.njol.skript.variables.Variables;
import ch.njol.util.coll.iterator.EmptyIterator;
import ch.njol.yggdrasil.Fields;
import ch.njol.yggdrasil.YggdrasilID;
/**
* @author Peter Güttinger
*/
public class GriefPreventionHook extends RegionsPlugin<GriefPrevention> {
public GriefPreventionHook() throws IOException {}
boolean supportsUUIDs;
@Nullable
Method getClaim;
@Nullable
Field claimsField;
@SuppressWarnings("null")
@Override
protected boolean init() {
// ownerID is a public field
supportsUUIDs = Skript.fieldExists(Claim.class, "ownerID");
try {
getClaim = DataStore.class.getDeclaredMethod("getClaim", long.class);
getClaim.setAccessible(true);
if (!Claim.class.isAssignableFrom(getClaim.getReturnType()))
getClaim = null;
} catch (final NoSuchMethodException e) {} catch (final SecurityException e) {}
try {
claimsField = DataStore.class.getDeclaredField("claims");
claimsField.setAccessible(true);
if (!List.class.isAssignableFrom(claimsField.getType()))
claimsField = null;
} catch (final NoSuchFieldException e) {} catch (final SecurityException e) {}
if (getClaim == null && claimsField == null) {
Skript.error("Skript " + Skript.getVersion() + " is not compatible with GriefPrevention " + plugin.getDescription().getVersion() + "."
+ " Please report this at http://dev.bukkit.org/bukkit-plugins/skript/tickets/ if this error occurred after you updated GriefPrevention.");
return false;
}
return super.init();
}
@Nullable
Claim getClaim(final long id) {
if (getClaim != null) {
try {
return (Claim) getClaim.invoke(plugin.dataStore, id);
} catch (final IllegalAccessException e) {
assert false : e;
} catch (final IllegalArgumentException e) {
assert false : e;
} catch (final InvocationTargetException e) {
throw new RuntimeException(e.getCause());
}
} else {
assert claimsField != null;
try {
final List<?> claims = (List<?>) claimsField.get(plugin.dataStore);
for (final Object claim : claims) {
if (!(claim instanceof Claim))
continue;
if (((Claim) claim).getID() == id)
return (Claim) claim;
}
} catch (final IllegalArgumentException e) {
assert false : e;
} catch (final IllegalAccessException e) {
assert false : e;
}
}
return null;
}
@Override
public String getName() {
return "GriefPrevention";
}
@Override
public boolean canBuild_i(final Player p, final Location l) {
return plugin.allowBuild(p, l) == null; // returns reason string if not allowed to build
}
static {
Variables.yggdrasil.registerSingleClass(GriefPreventionRegion.class);
}
@YggdrasilID("GriefPreventionRegion")
public final class GriefPreventionRegion extends Region {
private transient Claim claim;
@SuppressWarnings({"null", "unused"})
private GriefPreventionRegion() {}
public GriefPreventionRegion(final Claim c) {
claim = c;
}
@Override
public boolean contains(final Location l) {
return claim.contains(l, false, false);
}
@Override
public boolean isMember(final OfflinePlayer p) {
return isOwner(p);
}
@Override
public Collection<OfflinePlayer> getMembers() {
return getOwners();
}
@Override
public boolean isOwner(final OfflinePlayer p) {
return p.getName().equalsIgnoreCase(claim.getOwnerName());
}
@SuppressWarnings({"null", "deprecation"})
@Override
public Collection<OfflinePlayer> getOwners() {
if (supportsUUIDs)
return Arrays.asList(Bukkit.getOfflinePlayer(claim.ownerID));
else
return Arrays.asList(Bukkit.getOfflinePlayer(claim.getOwnerName()));
}
@Override
public Iterator<Block> getBlocks() {
final Location lower = claim.getLesserBoundaryCorner(), upper = claim.getGreaterBoundaryCorner();
if (lower == null || upper == null || lower.getWorld() == null || upper.getWorld() == null || lower.getWorld() != upper.getWorld())
return EmptyIterator.get();
upper.setY(upper.getWorld().getMaxHeight());
upper.setX(upper.getBlockX() + 1);
upper.setZ(upper.getBlockZ() + 1);
return new AABB(lower, upper).iterator();
}
@Override
public String toString() {
return "Claim #" + claim.getID();
}
@SuppressWarnings("null")
@Override
public Fields serialize() {
final Fields f = new Fields();
f.putPrimitive("id", claim.getID());
return f;
}
@Override
public void deserialize(final Fields fields) throws StreamCorruptedException {
final long id = fields.getPrimitive("id", long.class);
final Claim c = getClaim(id);
if (c == null)
throw new StreamCorruptedException("Invalid claim " + id);
claim = c;
}
@Override
public RegionsPlugin<?> getPlugin() {
return GriefPreventionHook.this;
}
@Override
public boolean equals(final @Nullable Object o) {
if (o == this)
return true;
if (o == null)
return false;
if (!(o instanceof GriefPreventionRegion))
return false;
return claim.equals(((GriefPreventionRegion) o).claim);
}
@Override
public int hashCode() {
return claim.hashCode();
}
}
@SuppressWarnings("null")
@Override
public Collection<? extends Region> getRegionsAt_i(final Location l) {
final Claim c = plugin.dataStore.getClaimAt(l, false, null);
if (c != null)
return Arrays.asList(new GriefPreventionRegion(c));
return Collections.emptySet();
}
@Override
@Nullable
public Region getRegion_i(final World world, final String name) {
try {
final Claim c = getClaim(Long.parseLong(name));
if (c != null && world.equals(c.getLesserBoundaryCorner().getWorld()))
return new GriefPreventionRegion(c);
return null;
} catch (final NumberFormatException e) {
return null;
}
}
@Override
public boolean hasMultipleOwners_i() {
return false;
}
@Override
protected Class<? extends Region> getRegionClass() {
return GriefPreventionRegion.class;
}
}