package net.minecraft.world.inventory;

import java.util.Optional;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import net.minecraft.core.BlockPos;
import net.minecraft.world.level.Level;

public interface ContainerLevelAccess {
	ContainerLevelAccess NULL = new ContainerLevelAccess() {
		@Override
		public <T> Optional<T> evaluate(final BiFunction<Level, BlockPos, T> action) {
			return Optional.empty();
		}
	};

	static ContainerLevelAccess create(final Level level, final BlockPos pos) {
		return new ContainerLevelAccess() {
			@Override
			public <T> Optional<T> evaluate(final BiFunction<Level, BlockPos, T> action) {
				return Optional.of(action.apply(level, pos));
			}
		};
	}

	<T> Optional<T> evaluate(BiFunction<Level, BlockPos, T> action);

	default <T> T evaluate(final BiFunction<Level, BlockPos, T> action, final T defaultValue) {
		return (T)this.evaluate(action).orElse(defaultValue);
	}

	default void execute(final BiConsumer<Level, BlockPos> action) {
		this.evaluate((level, pos) -> {
			action.accept(level, pos);
			return Optional.empty();
		});
	}
}