import com.google.common.base.Optional;
import com.google.common.primitives.Ints;
import com.parapvp.util.BukkitUtils;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.inventory.meta.ItemMeta;

public class CrowbarCommand
  implements CommandExecutor, TabCompleter
{
  private final List<String> completions;

  public CrowbarCommand()
  {
    this.completions = Arrays.asList(new String[] { "spawn", "setspawners", "setendframes" });
  }

  public boolean onCommand(CommandSender sender, Command command, String label, String[] args)
  {
    if (!(sender instanceof Player))
    {
      sender.sendMessage(ChatColor.RED + "This command is only executable by players.");
      return true;
    }
    if (args.length < 1)
    {
      sender.sendMessage(ChatColor.RED + "Usage: /" + label + " <spawn|setspawners|setendframes>");
      return true;
    }
    Player player = (Player)sender;
    if (args[0].equalsIgnoreCase("spawn"))
    {
      ItemStack stack = new Crowbar().getItemIfPresent();
      player.getInventory().addItem(new ItemStack[] { stack });
      sender.sendMessage(ChatColor.YELLOW + "You have given yourself a " + stack.getItemMeta().getDisplayName() + ChatColor.YELLOW + '.');
      return true;
    }
    Optional<Crowbar> crowbarOptional = Crowbar.fromStack(player.getItemInHand());
    if (!crowbarOptional.isPresent())
    {
      sender.sendMessage(ChatColor.RED + "You are not holding a Crowbar.");
      return true;
    }
    if (args[0].equalsIgnoreCase("setspawners"))
    {
      if (args.length < 2)
      {
        sender.sendMessage(ChatColor.RED + "Usage: /" + label + ' ' + args[0].toLowerCase() + " <amount>");
        return true;
      }
      Integer amount = Ints.tryParse(args[1]);
      if (amount == null)
      {
        sender.sendMessage(ChatColor.RED + "'" + args[1] + "' is not a number.");
        return true;
      }
      if (amount.intValue() < 0)
      {
        sender.sendMessage(ChatColor.RED + "You cannot set Spawner uses to an amount less than " + 0 + '.');
        return true;
      }
      if (amount.intValue() > 1)
      {
        sender.sendMessage(ChatColor.RED + "Crowbars have maximum Spawner uses of " + 1 + '.');
        return true;
      }
      Crowbar crowbar = (Crowbar)crowbarOptional.get();
      crowbar.setSpawnerUses(amount.intValue());
      player.setItemInHand(crowbar.getItemIfPresent());
      sender.sendMessage(ChatColor.YELLOW + "Set Spawner uses of held Crowbar to " + amount + '.');
      return true;
    }
    if (!args[0].equalsIgnoreCase("setendframes"))
    {
      sender.sendMessage(ChatColor.RED + "Usage: /" + label + " <spawn|setspawners|setendframes>");
      return true;
    }
    if (args.length < 2)
    {
      sender.sendMessage(ChatColor.RED + "Usage: /" + label + ' ' + args[0].toLowerCase() + " <amount>");
      return true;
    }
    Integer amount = Ints.tryParse(args[1]);
    if (amount == null)
    {
      sender.sendMessage(ChatColor.RED + "'" + args[1] + "' is not a number.");
      return true;
    }
    if (amount.intValue() < 0)
    {
      sender.sendMessage(ChatColor.RED + "You cannot set End Frame uses to an amount less than " + 0 + '.');
      return true;
    }
    if (amount.intValue() > 5)
    {
      sender.sendMessage(ChatColor.RED + "Crowbars have maximum End Frame uses of " + 1 + '.');
      return true;
    }
    Crowbar crowbar = (Crowbar)crowbarOptional.get();
    crowbar.setEndFrameUses(amount.intValue());
    player.setItemInHand(crowbar.getItemIfPresent());
    sender.sendMessage(ChatColor.YELLOW + "Set End Frame uses of held Crowbar to " + amount + '.');
    return true;
  }

  public List<String> onTabComplete(CommandSender sender, Command command, String label, String[] args)
  {
    return args.length == 1 ? BukkitUtils.getCompletions(args, this.completions) : Collections.emptyList();
  }
}