package gregtech.api.util;

import static gtPlusPlus.api.recipe.GTPPRecipeMaps.semiFluidFuels;

import java.util.HashMap;

import net.minecraft.item.ItemStack;
import net.minecraftforge.fluids.FluidContainerRegistry;
import net.minecraftforge.fluids.FluidStack;

import gregtech.api.recipe.RecipeMaps;
import gtPlusPlus.api.objects.Logger;
import gtPlusPlus.api.objects.data.Pair;
import gtPlusPlus.core.util.minecraft.FluidUtils;

public class SemiFluidFuelHandler {

    public static boolean addSemiFluidFuel(ItemStack aFuelItem, int aFuelValue) {
        FluidStack p = FluidContainerRegistry.getFluidForFilledItem(aFuelItem);
        if (p != null && aFuelValue > 0) {
            return addSemiFluidFuel(p, aFuelValue);
        } else {
            Logger.INFO("Fuel value for " + aFuelItem.getDisplayName() + " is <= 0, ignoring.");
        }
        return false;
    }

    public static boolean addSemiFluidFuel(FluidStack aFuel, int aFuelValue) {
        FluidStack p = aFuel;
        if (p != null && aFuelValue > 0) {
            GT_Recipe aRecipe = new GT_Recipe(
                    true,
                    new ItemStack[] {},
                    new ItemStack[] {},
                    null,
                    new int[] {},
                    new FluidStack[] { p },
                    null,
                    0,
                    0,
                    aFuelValue);
            if (aRecipe.mSpecialValue > 0) {
                Logger.INFO(
                        "Added " + aRecipe.mFluidInputs[0].getLocalizedName()
                                + " to the Semi-Fluid Generator fuel map. Fuel Produces "
                                + (aRecipe.mSpecialValue * 1000)
                                + "EU per 1000L.");
                semiFluidFuels.add(aRecipe);
                return true;
            }
        } else {
            Logger.INFO("Fuel value for " + p != null ? p.getLocalizedName() : "NULL Fluid" + " is <= 0, ignoring.");
        }
        return false;
    }

    public static boolean generateFuels() {
        final FluidStack aCreosote = FluidUtils.getFluidStack("creosote", 1000);
        final FluidStack aHeavyFuel = FluidUtils.getFluidStack("liquid_heavy_fuel", 1000);
        final FluidStack aHeavyOil = FluidUtils.getFluidStack("liquid_heavy_oil", 1000);
        final HashMap<Integer, Pair<FluidStack, Integer>> aFoundFluidsFromItems = new HashMap<>();
        // Find Fluids From items
        for (final GT_Recipe r : RecipeMaps.denseLiquidFuels.getAllRecipes()) {

            GT_Recipe g = r.copy();

            if (g != null && g.mEnabled && g.mInputs.length > 0 && g.mInputs[0] != null) {
                for (ItemStack i : g.mInputs) {
                    FluidStack f = FluidContainerRegistry.getFluidForFilledItem(i);
                    if (f != null) {
                        Pair<FluidStack, Integer> aData = new Pair<>(f, g.mSpecialValue);
                        aFoundFluidsFromItems.put(aData.hashCode(), aData);
                    }
                }
            } else if (g != null && g.mEnabled && g.mFluidInputs.length > 0 && g.mFluidInputs[0] != null) {
                boolean aContainsCreosote = false;
                for (FluidStack f : g.mFluidInputs) {
                    if (f.isFluidEqual(aCreosote)) {
                        aContainsCreosote = true;
                    }
                }
                g.mSpecialValue *= aContainsCreosote ? 6 : 3;
                Logger.INFO(
                        "Added " + g.mFluidInputs[0].getLocalizedName()
                                + " to the Semi-Fluid Generator fuel map. Fuel Produces "
                                + g.mSpecialValue
                                + "EU per 1000L.");
                semiFluidFuels.add(g);
            }
        }
        for (Pair<FluidStack, Integer> p : aFoundFluidsFromItems.values()) {
            if (p != null) {
                int aFuelValue = p.getValue();
                if (p.getKey().isFluidEqual(aCreosote)) {
                    aFuelValue *= 6;
                } else if (p.getKey().isFluidEqual(aHeavyFuel) || p.getKey().isFluidEqual(aHeavyOil)) {
                    aFuelValue *= 1.5;
                } else {
                    aFuelValue *= 2;
                }

                if (aFuelValue <= (128 * 3)) {
                    GT_Recipe aRecipe = new GT_Recipe(
                            true,
                            new ItemStack[] {},
                            new ItemStack[] {},
                            null,
                            new int[] {},
                            new FluidStack[] { p.getKey() },
                            null,
                            0,
                            0,
                            aFuelValue);
                    if (aRecipe.mSpecialValue > 0) {
                        Logger.INFO(
                                "Added " + aRecipe.mFluidInputs[0].getLocalizedName()
                                        + " to the Semi-Fluid Generator fuel map. Fuel Produces "
                                        + (aRecipe.mSpecialValue * 1000)
                                        + "EU per 1000L.");
                        semiFluidFuels.add(aRecipe);
                    }
                } else {
                    Logger.INFO("Boosted Fuel value for " + p.getKey().getLocalizedName() + " exceeds 512k, ignoring.");
                }
            }
        }
        return !semiFluidFuels.getAllRecipes().isEmpty();
    }
}