public void deleteLot(BytecraftPlayer player, String[] args) {
    ZoneWorld world = plugin.getWorld(player.getWorld());
    if (world == null) {
      return;
    }

    if (args.length < 2) {
      player.sendMessage("syntax: /lot delete [name]");
      return;
    }

    String name = args[1];

    Lot lot = world.getLot(name);
    if (lot == null) {
      player.sendMessage(RED + "No lot named " + name + " found.");
      return;
    }

    Zone zone = plugin.getZone(lot.getZoneName());

    Zone.Permission perm = zone.getUser(player);
    if (perm == Permission.OWNER) {
      // Zone owners can do this
    } else if (lot.isOwner(player)) {
      // Lot owners can always do it
    } else if (player.getRank().canEditZones()) {
      // Admins etc.
    } else {
      player.sendMessage(RED + "You are not an owner of lot " + lot.getName() + ".");
      return;
    }

    try (IContext ctx = plugin.createContext()) {
      IZoneDAO dao = ctx.getZoneDAO();
      dao.deleteLot(lot.getId());
      dao.deleteLotUsers(lot.getId());

      world.deleteLot(lot.getName());

      player.sendMessage(GREEN + lot.getName() + " has been deleted.");
    } catch (DAOException e) {
      throw new RuntimeException(e);
    }
  }
  public void createLot(BytecraftPlayer player, String[] args) {
    ZoneWorld world = plugin.getWorld(player.getWorld());
    if (world == null) {
      return;
    }

    if (args.length < 3) {
      player.sendMessage("syntax: /lot create [name] [owner]");
      return;
    }

    Block tb1 = player.getLotBlock1();

    Zone tzone = world.findZone(tb1.getLocation());
    String name = args[1] + "." + tzone.getName();
    if (world.lotExists(name)) {
      player.sendMessage(RED + "A lot named " + name + " already exists.");
      return;
    }

    String playerName = args[2];

    BytecraftPlayer victim = plugin.getPlayerOffline(playerName);
    if (victim == null) {
      player.sendMessage(RED + "Player " + playerName + " was not found.");
      return;
    }

    try (IContext ctx = plugin.createContext()) {
      IZoneDAO dao = ctx.getZoneDAO();

      Block b1 = player.getLotBlock1();
      Block b2 = player.getLotBlock2();
      if (b1 == null || b2 == null) {
        player.sendMessage("Please select two corners");
        return;
      }

      Zone zone = world.findZone(b1.getLocation());

      Permission perm = zone.getUser(player);
      if (perm != Permission.OWNER && !player.getRank().canEditZones()) {
        player.sendMessage(
            RED
                + "You are not allowed to create lots in zone "
                + zone.getName()
                + " ("
                + perm
                + ").");
        return;
      }

      Zone checkZone = world.findZone(b2.getLocation());

      if (zone.getId() != checkZone.getId()) {
        return;
      }

      Rectangle rect = new Rectangle(b1.getX(), b1.getZ(), b2.getX(), b2.getZ());

      Lot lot = new Lot();
      lot.setZoneName(zone.getName());
      lot.setRect(rect);
      lot.setName(name);
      lot.addOwner(victim);

      try {
        world.addLot(lot);
      } catch (IntersectionException e) {
        player.sendMessage(RED + "The specified rectangle intersects an existing lot.");
        return;
      }

      // zone.addLot(lot);
      dao.addLot(lot);
      dao.addLotUser(lot.getId(), victim.getName());

      player.sendMessage(
          GREEN
              + "["
              + zone.getName()
              + "] Lot "
              + args[1]
              + "."
              + zone.getName()
              + " created for player "
              + playerName
              + ".");
    } catch (DAOException e) {
      throw new RuntimeException(e);
    }
  }
  public void setLotOwner(BytecraftPlayer player, String[] args) {
    ZoneWorld world = plugin.getWorld(player.getWorld());
    if (world == null) {
      return;
    }

    if (args.length < 3) {
      player.sendMessage("syntax: /lot addowner [name] [player]");
      return;
    }

    String name = args[1];

    Lot lot = world.getLot(name);
    if (lot == null) {
      player.sendMessage(RED + "No lot named " + name + " found.");
      return;
    }

    Zone zone = plugin.getZone(lot.getZoneName());

    Permission perm = zone.getUser(player);
    if (perm == Zone.Permission.OWNER) {
      // Zone owners can do this in communist zones
    } else if (lot.isOwner(player)) {
      // Lot owners can always do it
    } else if (player.getRank().canEditZones()) {
      // Admins etc.
    } else {
      player.sendMessage(RED + "You are not an owner of lot " + lot.getName() + ".");
      return;
    }

    // try partial matching
    List<BytecraftPlayer> candidates = plugin.matchPlayer(args[2]);
    BytecraftPlayer candidate = null;
    if (candidates.size() != 1) {
      // try exact matching
      candidate = plugin.getPlayerOffline(args[2]);
      if (candidate == null) {
        // give up
        player.sendMessage(RED + "Player " + args[2] + " was not found.");
        return;
      }
    } else {
      candidate = candidates.get(0);
    }

    try (IContext ctx = plugin.createContext()) {
      IZoneDAO dao = ctx.getZoneDAO();

      if ("addowner".equals(args[0])) {

        if (lot.isOwner(candidate)) {
          player.sendMessage(
              RED + candidate.getDisplayName() + RED + " is already an owner of lot " + name + ".");
          return;
        } else {
          lot.addOwner(candidate);
          dao.addLotUser(lot.getId(), candidate.getName());
          player.sendMessage(
              GREEN
                  + candidate.getDisplayName()
                  + GREEN
                  + " has been added as owner of "
                  + lot.getName()
                  + ".");
        }
      } else if ("delowner".equals(args[0])) {
        if (!lot.isOwner(candidate)) {
          player.sendMessage(
              RED + candidate.getDisplayName() + RED + " is not an owner of lot " + name + ".");
          return;
        } else {
          lot.deleteOwner(candidate);
          dao.deleteLotUser(lot.getId(), candidate.getName());

          player.sendMessage(
              GREEN
                  + candidate.getDisplayName()
                  + GREEN
                  + " is no longer an owner of "
                  + lot.getName()
                  + ".");
        }
      }
    } catch (DAOException e) {
      throw new RuntimeException(e);
    }
  }