package com.tiedup.remake.v2.bondage;

import java.util.List;
import net.minecraft.world.item.ItemStack;

/**
 * Result of attempting to equip a V2 bondage item.
 * Carries displaced stacks for swap/supersede cases.
 */
public record V2EquipResult(Type type, List<ItemStack> displaced) {
    public enum Type {
        /** Item equipped successfully into empty regions. */
        SUCCESS,
        /** Single conflicting item was swapped out. */
        SWAPPED,
        /** Global item superseded multiple sub-region items. */
        SUPERSEDED,
        /** Item could not be equipped due to unresolvable conflicts. */
        BLOCKED,
    }

    /** Convenience: check if equip was blocked. */
    public boolean isBlocked() {
        return type == Type.BLOCKED;
    }

    /** Convenience: check if equip succeeded (any non-blocked result). */
    public boolean isSuccess() {
        return type != Type.BLOCKED;
    }

    // ===== Factory methods =====

    public static final V2EquipResult SUCCESS = new V2EquipResult(
        Type.SUCCESS,
        List.of()
    );
    public static final V2EquipResult BLOCKED = new V2EquipResult(
        Type.BLOCKED,
        List.of()
    );

    public static V2EquipResult swapped(ItemStack displaced) {
        return new V2EquipResult(Type.SWAPPED, List.of(displaced));
    }

    public static V2EquipResult superseded(List<ItemStack> displaced) {
        return new V2EquipResult(Type.SUPERSEDED, List.copyOf(displaced));
    }
}