CE_ShowOwner.java

package com.nicewuerfel.blockown.command;

import com.google.common.base.Optional;

import com.nicewuerfel.blockown.InvalidWorldNameException;
import com.nicewuerfel.blockown.Message;
import com.nicewuerfel.blockown.OwnedBlock;
import com.nicewuerfel.blockown.Setting;
import com.nicewuerfel.blockown.User;
import com.nicewuerfel.blockown.WaitType;
import com.nicewuerfel.blockown.database.Database;
import com.nicewuerfel.blockown.protection.Protection;

import org.bukkit.block.Block;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import java.util.Set;

public class CE_ShowOwner extends CommandExecutor {

  private static final String PARAM_ENTITY = "e";
  private static final String PARAM_BLOCK = "b";

  public CE_ShowOwner(Setting setting, Database database, Protection protection) {
    super(setting, database, protection);
  }

  @Override
  public boolean onCommand(CommandSender sender, Command cmd, String cmdName, String[] args) {
    if (!isPlayer(sender)) {
      return true;
    }
    Player player = (Player) sender;

    if (!setting.isEnabledIn(player.getWorld())) {
      player.sendMessage(Message.COMMAND_DISABLED_IN_WORLD.getMessage());
      return true;
    }

    User user = User.getInstance(player.getUniqueId());

    if (args.length == 1) {
      if (args[0].equalsIgnoreCase(PARAM_ENTITY)) {
        if (setting.isWaiting(user, WaitType.SHOW_OWNER_ENTITY)) {
          setting.removeWaiting(user);
          player.sendMessage(Message.COMMAND_NO_MORE_CLICK_WAITING.getMessage());
        } else {
          setting.addWaiting(user, WaitType.SHOW_OWNER_ENTITY);
          player.sendMessage(Message.COMMAND_SHOWOWNER_CLICK_ENTITY.getMessage());
        }
        return true;
      }
      if (args[0].equalsIgnoreCase(PARAM_BLOCK)) {
        if (setting.isWaiting(user, WaitType.SHOW_OWNER_BLOCK)) {
          setting.removeWaiting(user);
          player.sendMessage(Message.COMMAND_NO_MORE_CLICK_WAITING.getMessage());
        } else {
          setting.addWaiting(user, WaitType.SHOW_OWNER_BLOCK);
          player.sendMessage(Message.COMMAND_SHOWOWNER_CLICK_BLOCK.getMessage());
        }
        return true;
      }
    }

    Block block = player.getTargetBlock((Set<org.bukkit.Material>) null, 20);
    if (block != null) {
      OwnedBlock ownedBlock = OwnedBlock.newInstance(block);
      Optional<User> owner = database.getOwner(ownedBlock);
      try {
        if (!owner.isPresent()) {
          player.sendMessage(Message.COMMAND_SHOWOWNER_BLOCK_UNOWNED
              .getMessage(ownedBlock.getMaterial().getName()));
        } else {
          player.sendMessage(Message.COMMAND_SHOWOWNER_BLOCK_FOUND.getMessage(owner.get().getName(),
              ownedBlock.getMaterial().getName()));
        }
        return true;
      } catch (InvalidWorldNameException e) {
        // Should never happen
        getOutput().printException(
            "Exception that shouldn't happen happened in " + getClass().getName(), e);
        return false;
      }
    } else {
      player.sendMessage(Message.COMMAND_NOTARGET.getMessage());
      return false;
    }

  }
}