/*
 * MIT License
 *
 * Copyright (c) 2020 Azercoco & Technici4n
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package aztech.modern_industrialization.client.compat.viewer.impl.emi;

import aztech.modern_industrialization.client.machines.gui.MachineScreen;
import aztech.modern_industrialization.inventory.ConfigurableFluidStack;
import aztech.modern_industrialization.inventory.ConfigurableItemStack;
import dev.emi.emi.api.EmiStackProvider;
import dev.emi.emi.api.stack.EmiStack;
import dev.emi.emi.api.stack.EmiStackInteraction;
import net.minecraft.world.inventory.Slot;
import net.minecraft.world.level.material.Fluid;

class MachineStackProvider implements EmiStackProvider<MachineScreen> {
    @Override
    public EmiStackInteraction getStackAt(MachineScreen screen, int x, int y) {
        Slot slot = screen.getFocusedSlot();
        if (slot instanceof ConfigurableFluidStack.ConfigurableFluidSlot) {
            ConfigurableFluidStack stack = ((ConfigurableFluidStack.ConfigurableFluidSlot) slot).getConfStack();
            if (stack.getAmount() > 0) {
                Fluid fluid = stack.getResource().getFluid();
                return new EmiStackInteraction(EmiStack.of(fluid), null, false);
            } else if (stack.getLockedInstance() != null) {
                Fluid fluid = stack.getLockedInstance();
                if (fluid != null) {
                    return new EmiStackInteraction(EmiStack.of(fluid), null, false);
                }
            }
        } else if (slot instanceof ConfigurableItemStack.ConfigurableItemSlot) {
            ConfigurableItemStack stack = ((ConfigurableItemStack.ConfigurableItemSlot) slot).getConfStack();
            // the normal stack is already handled by REI, we just need to handle the locked
            // item!
            if (stack.getLockedInstance() != null) {
                return new EmiStackInteraction(EmiStack.of(stack.getLockedInstance()), null, false);
            }
        }
        return EmiStackInteraction.EMPTY;
    }
}
