package mffs.tileentity;

import cpw.mods.fml.common.Optional;
import ic2.api.energy.tile.IEnergySource;
import mffs.ConversionHelper;
import mffs.ModularForceFieldSystem;
import mffs.Settings;
import mffs.api.modules.IModule;
import mffs.base.PacketTile;
import mffs.base.TileEntityUniversalEnergy;
import mffs.fortron.FortronHelper;
import mffs.item.card.ItemCardFrequency;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraft.network.play.server.S35PacketUpdateTileEntity;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;
import net.minecraftforge.fluids.FluidStack;
import universalelectricity.core.electricity.ElectricityPack;
import universalelectricity.core.item.ElectricItemHelper;
import universalelectricity.core.item.IItemElectric;
import universalelectricity.core.item.IItemElectricityStorage;

@Optional.Interface(modid = "IC2", iface = "ic2.api.energy.tile.IEnergySource")
public class TileEntityCoercionDeriver extends TileEntityUniversalEnergy implements IEnergySource {
  public static final int WATTAGE = 1000;
  public static final int REQUIRED_TIME = 200;
  public static final int MULTIPLE_PRODUCTION = 4;
  public static final float FORTRON_UE_RATIO = 6.0f;
  public static final int SLOT_FREQUENCY = 0;
  public static final int SLOT_BATTERY = 1;
  public static final int SLOT_FUEL = 2;
  public int processTime;
  public boolean isInversed;

  public TileEntityCoercionDeriver() {
    this.processTime = 0;
    this.isInversed = false;
    super.capacityBase = 30;
    super.startModuleIndex = 3;
  }

  @Override
  public void updateEntity() {
    super.updateEntity();
    if (!this.getWorldObj().isRemote) {
      if (!this.isDisabled() && this.isActive()) {
        if (this.isInversed && Settings.ENABLE_ELECTRICITY) {
          final double watts =
              Math.min(this.getFortronEnergy() * FORTRON_UE_RATIO, 1000.0f);
          final ElectricityPack remainder = this.produce(watts);
          double electricItemGiven = 0.0;
          if (remainder.getWatts() > 0.0) {
            electricItemGiven = ElectricItemHelper.chargeItem(
                this.getStackInSlot(1), remainder.getWatts(),
                this.getVoltage());
          }
          double convertedToRF = 0.0;
          if ((remainder.getWatts() - electricItemGiven) > 0.0) {
            convertedToRF = ConversionHelper.fromRF(this.produceRF(ConversionHelper.toRF(remainder.getWatts() - electricItemGiven)));
          }
          this.requestFortron(
              (int)Math.ceil((watts - (remainder.getWatts() - (electricItemGiven + convertedToRF))) / FORTRON_UE_RATIO),
              true);
        } else {
          super.wattsReceived += ElectricItemHelper.dechargeItem(
              this.getStackInSlot(1), 1000.0, this.getVoltage());
          if (super.wattsReceived >= 1000.0 ||
              (!Settings.ENABLE_ELECTRICITY &&
               this.isItemValidForSlot(2, this.getStackInSlot(2)))) {
            final int production = this.getProductionRate();
            super.fortronTank.fill(
                FortronHelper.getFortron(
                    production + this.getWorldObj().rand.nextInt(production)),
                true);
            if (this.processTime == 0 &&
                this.isItemValidForSlot(2, this.getStackInSlot(2))) {
              this.decrStackSize(2, 1);
              this.processTime =
                  200 * Math.max(this.getModuleCount(
                                     ModularForceFieldSystem.itemModuleSpeed,
                                     new int[0]) /
                                     20,
                                 1);
            }
            if (this.processTime > 0) {
              --this.processTime;
              if (this.processTime < 1) {
                this.processTime = 0;
              }
            } else {
              this.processTime = 0;
            }
            super.wattsReceived -= 1000.0;
          }
        }
      }
    } else if (this.isActive()) {
      ++super.animation;
    }
  }

  public int getProductionRate() {
    if (!this.isDisabled() && this.isActive() && !this.isInversed) {
      int production = 40;
      if (this.processTime > 0) {
        production *= 4;
      }
      return production;
    }
    return 0;
  }

  @Override
  public int getSizeInventory() {
    return 6;
  }

  @Override
  public ElectricityPack getRequest() {
    if (this.canConsume()) {
      return new ElectricityPack(1000.0 / this.getVoltage(), this.getVoltage());
    }
    return super.getRequest();
  }

  public boolean canConsume() {
    return this.isActive() && !this.isInversed &&
        FortronHelper.getAmount(super.fortronTank) <
            super.fortronTank.getCapacity();
  }

  @Override
  public Packet getDescriptionPacket() {
    NBTTagCompound nbt = new NBTTagCompound();

    nbt.setBoolean("isInversed", this.isInversed);
    nbt.setDouble("wattsReceived", super.wattsReceived);
    nbt.setBoolean("isActive", super.isActive);
    nbt.setInteger("fortron", this.fortronTank.getFluidAmount());

    return new S35PacketUpdateTileEntity(this.xCoord, this.yCoord, this.zCoord,
                                         this.getBlockMetadata(), nbt);
  }

  @Override
  public void onDataPacket(NetworkManager arg0,
                           S35PacketUpdateTileEntity arg1) {
    NBTTagCompound nbt = arg1.func_148857_g();

    this.isInversed = nbt.getBoolean("isInversed");
    super.wattsReceived = nbt.getDouble("wattsReceived");

    this.isActive = nbt.getBoolean("isActive");
    this.fortronTank.setFluid(new FluidStack(FortronHelper.FLUID_FORTRON, nbt.getInteger("fortron")));
  }

  @Override
  public void onReceivePacket(PacketTile.Type type, final NBTTagCompound nbt) {
    super.onReceivePacket(type, nbt);
    if (type == PacketTile.Type.TOGGLE_MODE) {
      this.isInversed = !this.isInversed;
    }
  }

  @Override
  public void readFromNBT(final NBTTagCompound nbt) {
    super.readFromNBT(nbt);
    this.processTime = nbt.getInteger("processTime");
    this.isInversed = nbt.getBoolean("isInversed");
  }

  @Override
  public void writeToNBT(final NBTTagCompound nbt) {
    super.writeToNBT(nbt);
    nbt.setInteger("processTime", this.processTime);
    nbt.setBoolean("isInversed", this.isInversed);
  }

  @Override
  public boolean isItemValidForSlot(final int slotID,
                                    final ItemStack itemStack) {
    if (itemStack != null) {
      if (slotID >= super.startModuleIndex) {
        return itemStack.getItem() instanceof IModule;
      }
      switch (slotID) {
      case 0: {
        return itemStack.getItem() instanceof ItemCardFrequency;
      }
      case 1: {
        return itemStack.getItem() instanceof IItemElectric;
      }
      case 2: {
        return itemStack.isItemEqual(new ItemStack(Items.dye, 1, 4)) ||
            itemStack.isItemEqual(new ItemStack(Items.quartz));
      }
      }
    }
    return false;
  }

  @Override
  public boolean canConnect(final ForgeDirection direction) {
    return true;
  }

  @Optional.Method(modid = "IC2")
  @Override
  public boolean emitsEnergyTo(TileEntity receiver, ForgeDirection direction) {
    return canConnect(direction) && this.getStackInSlot(1) != null;
  }

  @Optional.Method(modid = "IC2")
  @Override
  public double getOfferedEnergy() {
    ItemStack battery = this.getStackInSlot(1);
    if (battery == null || !(battery.getItem() instanceof IItemElectricityStorage) || !this.isInversed) return 0;
    IItemElectricityStorage impl = (IItemElectricityStorage) battery.getItem();
    double joules = impl.getJoules(battery);
    return Math.min(ConversionHelper.toEU(joules), 32);
  }

  @Optional.Method(modid = "IC2")
  @Override
  public void drawEnergy(double amount) {
    ItemStack battery = this.getStackInSlot(1);
    if (battery == null || !(battery.getItem() instanceof IItemElectricityStorage)) return;
    IItemElectricityStorage impl = (IItemElectricityStorage) battery.getItem();
    impl.setJoules(impl.getJoules(battery)- ConversionHelper.fromEU(amount), battery);
  }

  @Optional.Method(modid = "IC2")
  @Override
  public int getSourceTier() {
    return 1;
  }
}