"use client";

import { create } from "zustand";

interface VariantState {
  /** Aktywny wariant SKU per produkt (klucz = productSku, wartość = variantSku) */
  activeVariants: Record<string, string>;
  setActive: (productSku: string, variantSku: string) => void;
  getActive: (productSku: string, fallback?: string) => string | undefined;
}

export const useVariantStore = create<VariantState>((set, get) => ({
  activeVariants: {},
  setActive: (productSku, variantSku) =>
    set((state) => ({
      activeVariants: {
        ...state.activeVariants,
        [productSku]: variantSku,
      },
    })),
  getActive: (productSku, fallback) =>
    get().activeVariants[productSku] ?? fallback,
}));