mffs/src/main/java/mffs/item/card/ItemCardID.java

package mffs.item.card;

import java.util.List;
import mffs.MFFSHelper;
import mffs.api.card.ICardIdentification;
import mffs.api.security.Permission;
import mffs.card.ItemCard;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.world.World;
import universalelectricity.prefab.TranslationHelper;

public class ItemCardID extends ItemCard implements ICardIdentification {

  public ItemCardID() { super("cardIdentification"); }

  public ItemCardID(final String name) { super(name); }

  @Override
  public boolean hitEntity(final ItemStack itemStack,
                           final EntityLivingBase entityLiving,
                           final EntityLivingBase par3EntityLiving) {
    if (entityLiving instanceof EntityPlayer) {
      this.setUsername(itemStack,
                       ((EntityPlayer)entityLiving).getDisplayName());
    }
    return false;
  }

  @Override
  public void addInformation(final ItemStack itemStack,
                             final EntityPlayer player, final List info,
                             final boolean b) {
    if (this.getUsername(itemStack) != null &&
        !this.getUsername(itemStack).isEmpty()) {
      info.add("Username: " + this.getUsername(itemStack));
    } else {
      info.add("Unidentified");
    }
    String tooltip = "";
    boolean isFirst = true;
    for (final Permission permission : Permission.getPermissions()) {
      if (this.hasPermission(itemStack, permission)) {
        if (!isFirst) {
          tooltip += ", ";
        }
        isFirst = false;
        tooltip +=
            TranslationHelper.getLocal("gui." + permission.name + ".name");
      }
    }
    if (tooltip != null && tooltip.length() > 0) {
      info.addAll(MFFSHelper.splitStringPerWord(tooltip, 5));
    }
  }

  @Override
  public ItemStack onItemRightClick(final ItemStack itemStack,
                                    final World par2World,
                                    final EntityPlayer entityPlayer) {
    this.setUsername(itemStack, entityPlayer.getDisplayName());
    return itemStack;
  }

  @Override
  public void setUsername(final ItemStack itemStack, final String username) {
    final NBTTagCompound nbtTagCompound =
        MFFSHelper.getNBTTagCompound(itemStack);
    nbtTagCompound.setString("name", username);
  }

  @Override
  public String getUsername(final ItemStack itemStack) {
    final NBTTagCompound nbtTagCompound =
        MFFSHelper.getNBTTagCompound(itemStack);
    if (nbtTagCompound != null && nbtTagCompound.getString("name") != "") {
      return nbtTagCompound.getString("name");
    }
    return null;
  }

  @Override
  public boolean hasPermission(final ItemStack itemStack,
                               final Permission permission) {
    final NBTTagCompound nbt = MFFSHelper.getNBTTagCompound(itemStack);
    return nbt.getBoolean("mffs_permission_" + permission.id);
  }

  @Override
  public boolean addPermission(final ItemStack itemStack,
                               final Permission permission) {
    final NBTTagCompound nbt = MFFSHelper.getNBTTagCompound(itemStack);
    nbt.setBoolean("mffs_permission_" + permission.id, true);
    return false;
  }

  @Override
  public boolean removePermission(final ItemStack itemStack,
                                  final Permission permission) {
    final NBTTagCompound nbt = MFFSHelper.getNBTTagCompound(itemStack);
    nbt.setBoolean("mffs_permission_" + permission.id, false);
    return false;
  }
}