PrettyPipes/src/main/java/de/ellpeck/prettypipes/pipe/modules/retrieval/RetrievalModuleItem.java

package de.ellpeck.prettypipes.pipe.modules.retrieval;

import de.ellpeck.prettypipes.Registry;
import de.ellpeck.prettypipes.items.IModule;
import de.ellpeck.prettypipes.items.ModuleItem;
import de.ellpeck.prettypipes.items.ModuleTier;
import de.ellpeck.prettypipes.misc.ItemFilter;
import de.ellpeck.prettypipes.network.NetworkLocation;
import de.ellpeck.prettypipes.network.PipeItem;
import de.ellpeck.prettypipes.network.PipeNetwork;
import de.ellpeck.prettypipes.pipe.PipeTileEntity;
import de.ellpeck.prettypipes.pipe.containers.AbstractPipeContainer;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.entity.player.PlayerInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.util.math.BlockPos;
import net.minecraftforge.items.IItemHandler;

import java.util.List;

public class RetrievalModuleItem extends ModuleItem {
    private final int maxExtraction;
    private final int speed;
    private final boolean preventOversending;
    public final int filterSlots;

    public RetrievalModuleItem(String name, ModuleTier tier) {
        super(name);
        this.maxExtraction = tier.forTier(1, 8, 16);
        this.speed = tier.forTier(40, 20, 10);
        this.filterSlots = tier.forTier(3, 6, 9);
        this.preventOversending = tier.forTier(false, true, true);
    }

    @Override
    public void tick(ItemStack module, PipeTileEntity tile) {
        if (tile.getWorld().getGameTime() % this.speed != 0)
            return;
        if (!tile.canWork())
            return;
        PipeNetwork network = PipeNetwork.get(tile.getWorld());
        List<NetworkLocation> locations = null;

        ItemFilter filter = new ItemFilter(this.filterSlots, module, tile);
        filter.isWhitelist = true;
        // loop through filter to see which items to pull
        for (int f = 0; f < filter.getSlots(); f++) {
            ItemStack filtered = filter.getStackInSlot(f);
            if (filtered.isEmpty())
                continue;
            ItemStack copy = filtered.copy();
            copy.setCount(this.maxExtraction);
            BlockPos dest = tile.getAvailableDestination(copy, true, this.preventOversending);
            if (dest == null)
                continue;
            // loop through locations to find a location that has the item
            if (locations == null)
                locations = network.getOrderedNetworkItems(tile.getPos());
            for (NetworkLocation location : locations) {
                if (location.pipePos.equals(tile.getPos()))
                    continue;
                for (int slot : location.getStackSlots(tile.getWorld(), filtered, filter.getEqualityTypes())) {
                    // try to extract from that location's inventory and send the item
                    IItemHandler handler = location.getItemHandler(tile.getWorld());
                    ItemStack stack = handler.extractItem(slot, this.maxExtraction, true);
                    if (network.routeItemToLocation(location.pipePos, location.getPos(), tile.getPos(), dest, speed -> new PipeItem(stack, speed))) {
                        handler.extractItem(slot, stack.getCount(), false);
                        return;
                    }
                }
            }
        }
    }

    @Override
    public boolean canNetworkSee(ItemStack module, PipeTileEntity tile) {
        return false;
    }

    @Override
    public boolean canAcceptItem(ItemStack module, PipeTileEntity tile, ItemStack stack) {
        return false;
    }

    @Override
    public boolean isCompatible(ItemStack module, PipeTileEntity tile, IModule other) {
        return !(other instanceof RetrievalModuleItem);
    }

    @Override
    public boolean hasContainer(ItemStack module, PipeTileEntity tile) {
        return true;
    }

    @Override
    public AbstractPipeContainer<?> getContainer(ItemStack module, PipeTileEntity tile, int windowId, PlayerInventory inv, PlayerEntity player, int moduleIndex) {
        return new RetrievalModuleContainer(Registry.retrievalModuleContainer, windowId, player, tile.getPos(), moduleIndex);
    }
}