Package ch.njol.skript.conditions

Source Code of ch.njol.skript.conditions.CondContains

/*
*   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 2011-2014 Peter Güttinger
*
*/

package ch.njol.skript.conditions;

import org.bukkit.event.Event;
import org.bukkit.inventory.Inventory;
import org.eclipse.jdt.annotation.Nullable;

import ch.njol.skript.Skript;
import ch.njol.skript.SkriptConfig;
import ch.njol.skript.aliases.ItemType;
import ch.njol.skript.classes.Comparator.Relation;
import ch.njol.skript.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
import ch.njol.skript.lang.Condition;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.lang.Variable;
import ch.njol.skript.log.ParseLogHandler;
import ch.njol.skript.log.SkriptLogger;
import ch.njol.skript.registrations.Comparators;
import ch.njol.util.Checker;
import ch.njol.util.Kleenean;
import ch.njol.util.StringUtils;

/**
* @author Peter Güttinger
*/
@Name("Contains")
@Description("Checks whether an inventory contains the given item, a text contains another piece of text, or a list of objects (e.g. a {list variable::*}) contains another object.")
@Examples({"block contains 20 cobblestone",
    "player has 4 flint and 2 iron ingots"})
@Since("1.0")
public class CondContains extends Condition {
  static {
    Skript.registerCondition(CondContains.class,
        "%inventories% ha(s|ve) %itemtypes% [in [(the[ir]|his|her|its)] inventory]",
        "%inventories/strings/objects% contain[s] %itemtypes/strings/objects%",
        "%inventories% do[es](n't| not) have %itemtypes% [in [(the[ir]|his|her|its)] inventory]",
        "%inventories/strings/objects% do[es](n't| not) contain %itemtypes/strings/objects%");
  }
 
  @SuppressWarnings("null")
  Expression<?> containers;
  @SuppressWarnings("null")
  Expression<?> items;
 
  @SuppressWarnings({"unchecked", "null", "unused"})
  @Override
  public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parser) {
    containers = exprs[0].getConvertedExpression(Object.class);
    if (containers == null)
      return false;
    if (!(containers instanceof Variable) && !String.class.isAssignableFrom(containers.getReturnType()) && !Inventory.class.isAssignableFrom(containers.getReturnType())) {
      final ParseLogHandler h = SkriptLogger.startParseLogHandler();
      try {
        Expression<?> c = containers.getConvertedExpression(String.class);
        if (c == null)
          c = containers.getConvertedExpression(Inventory.class);
        if (c == null) {
          h.printError();
          return false;
        }
        containers = c;
        h.printLog();
      } finally {
        h.stop();
      }
    }
    items = exprs[1].getConvertedExpression(Object.class);
    if (items == null)
      return false;
    setNegated(matchedPattern >= 2);
    return true;
  }
 
  @Override
  public boolean check(final Event e) {
    return containers.check(e, new Checker<Object>() {
      @Override
      public boolean check(final Object container) {
        if (containers instanceof Variable && !containers.isSingle()) {
          return items.check(e, new Checker<Object>() {
            @Override
            public boolean check(final Object item) {
              return Relation.EQUAL.is(Comparators.compare(container, item));
            }
          }, isNegated());
        } else {
          if (container instanceof Inventory) {
            final Inventory invi = (Inventory) container;
            return items.check(e, new Checker<Object>() {
              @Override
              public boolean check(final Object type) {
                return type instanceof ItemType && ((ItemType) type).isContainedIn(invi);
              }
            }, isNegated());
          } else if (container instanceof String) {
            final String s = (String) container;
            return items.check(e, new Checker<Object>() {
              @Override
              public boolean check(final Object type) {
                return type instanceof String && StringUtils.contains(s, (String) type, SkriptConfig.caseSensitive.value());
              }
            }, isNegated());
          }
          return false;
        }
      }
    });
  }
 
  @Override
  public String toString(final @Nullable Event e, final boolean debug) {
    return containers.toString(e, debug) + (isNegated() ? " doesn't contain " : " contains ") + items.toString(e, debug);
  }
 
}
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