equivalent-exchange-3/src/main/java/com/pahimar/ee3/command/CommandSetEnergyValueCurrentItem.java

package com.pahimar.ee3.command;

import com.pahimar.ee3.api.EnergyValue;
import com.pahimar.ee3.exchange.EnergyValueRegistry;
import com.pahimar.ee3.exchange.WrappedStack;
import com.pahimar.ee3.network.PacketHandler;
import com.pahimar.ee3.network.message.MessageSetEnergyValue;
import com.pahimar.ee3.reference.Files;
import com.pahimar.ee3.reference.Messages;
import com.pahimar.ee3.reference.Names;
import com.pahimar.ee3.util.SerializationHelper;
import net.minecraft.command.CommandBase;
import net.minecraft.command.ICommandSender;
import net.minecraft.command.WrongUsageException;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;

import java.util.List;
import java.util.Map;

public class CommandSetEnergyValueCurrentItem extends CommandBase
{
    @Override
    public String getCommandName()
    {
        return Names.Commands.SET_ENERGY_VALUE_CURRENT_ITEM;
    }

    @Override
    public int getRequiredPermissionLevel()
    {
        return 2;
    }

    @Override
    public String getCommandUsage(ICommandSender commandSender)
    {
        return Messages.Commands.SET_ENERGY_VALUE_CURRENT_ITEM_USAGE;
    }

    @Override
    public void processCommand(ICommandSender commandSender, String[] args)
    {
        if (args.length < 3)
        {
            throw new WrongUsageException(Messages.Commands.SET_ENERGY_VALUE_CURRENT_ITEM_USAGE);
        }
        else
        {
            double energyValue = 0;

            if (args.length >= 3)
            {
                energyValue = parseDoubleWithMin(commandSender, args[2], 0);
            }

            ItemStack itemStack = ((EntityPlayer) commandSender).getCurrentEquippedItem();

            if (itemStack != null)
            {
                WrappedStack wrappedStack = WrappedStack.wrap(itemStack);
                EnergyValue newEnergyValue = new EnergyValue(energyValue);

                if (wrappedStack != null && newEnergyValue != null && Float.compare(newEnergyValue.getValue(), 0) > 0)
                {
                    if (args[1].equalsIgnoreCase("pre"))
                    {
                        Map<WrappedStack, EnergyValue> preAssignedValues = SerializationHelper.readEnergyValueStackMapFromJsonFile(Files.PRE_ASSIGNED_ENERGY_VALUES);
                        preAssignedValues.put(wrappedStack, newEnergyValue);

                        SerializationHelper.writeEnergyValueStackMapToJsonFile(Files.PRE_ASSIGNED_ENERGY_VALUES, preAssignedValues);
                        EnergyValueRegistry.getInstance().setShouldRegenNextRestart(true);
                    }
                    else if (args[1].equalsIgnoreCase("post"))
                    {
                        EnergyValueRegistry.getInstance().setEnergyValue(wrappedStack, newEnergyValue);

                        Map<WrappedStack, EnergyValue> postAssignedValues = SerializationHelper.readEnergyValueStackMapFromJsonFile(Files.POST_ASSIGNED_ENERGY_VALUES);
                        postAssignedValues.put(wrappedStack, newEnergyValue);

                        SerializationHelper.writeEnergyValueStackMapToJsonFile(Files.POST_ASSIGNED_ENERGY_VALUES, postAssignedValues);
                        PacketHandler.INSTANCE.sendToAll(new MessageSetEnergyValue(wrappedStack, newEnergyValue));
                    }

                    // Notify admins and log the value change
                    func_152373_a(commandSender, this, Messages.Commands.SET_ENERGY_VALUE_CURRENT_ITEM_SUCCESS, new Object[]{commandSender.getCommandSenderName(), args[1], itemStack.func_151000_E(), newEnergyValue.getChatComponent()});
                }
                else
                {
                    throw new WrongUsageException(Messages.Commands.SET_ENERGY_VALUE_CURRENT_ITEM_USAGE);
                }
            }
            else
            {
                throw new WrongUsageException(Messages.Commands.NO_ITEM);
            }
        }
    }

    @Override
    public List addTabCompletionOptions(ICommandSender commandSender, String[] args)
    {
        if (args.length == 2)
        {
            return getListOfStringsMatchingLastWord(args, "pre", "post");
        }

        return null;
    }
}