// src/actions/product.ts
//
import { useMemo } from 'react';
import axiosInstance, { endpoints, fetcher } from 'src/lib/axios';
import type { IProductItem } from 'src/types/product';
import type { SWRConfiguration } from 'swr';
import useSWR, { mutate } from 'swr';

// ----------------------------------------------------------------------

const swrOptions: SWRConfiguration = {
  revalidateIfStale: false,
  revalidateOnFocus: false,
  revalidateOnReconnect: false,
};

// ----------------------------------------------------------------------

type ProductsData = {
  products: IProductItem[];
};

export function useGetProducts() {
  const url = endpoints.product.list;

  const { data, isLoading, error, isValidating } = useSWR<ProductsData>(url, fetcher, swrOptions);

  const memoizedValue = useMemo(
    () => ({
      products: data?.products || [],
      productsLoading: isLoading,
      productsError: error,
      productsValidating: isValidating,
      productsEmpty: !isLoading && !isValidating && !data?.products.length,
    }),
    [data?.products, error, isLoading, isValidating]
  );

  return memoizedValue;
}

// ----------------------------------------------------------------------

type ProductData = {
  product: IProductItem;
};

export function useGetProduct(productId: string) {
  const url = productId ? [endpoints.product.details, { params: { productId } }] : '';

  const { data, isLoading, error, isValidating } = useSWR<ProductData>(url, fetcher, swrOptions);

  const memoizedValue = useMemo(
    () => ({
      product: data?.product,
      productLoading: isLoading,
      productError: error,
      productValidating: isValidating,
      mutate,
    }),
    [data?.product, error, isLoading, isValidating]
  );

  return memoizedValue;
}

// ----------------------------------------------------------------------

type SearchResultsData = {
  results: IProductItem[];
};

export function useSearchProducts(query: string) {
  const url = query ? [endpoints.product.search, { params: { query } }] : '';

  const { data, isLoading, error, isValidating } = useSWR<SearchResultsData>(url, fetcher, {
    ...swrOptions,
    keepPreviousData: true,
  });

  const memoizedValue = useMemo(
    () => ({
      searchResults: data?.results || [],
      searchLoading: isLoading,
      searchError: error,
      searchValidating: isValidating,
      searchEmpty: !isLoading && !isValidating && !data?.results.length,
    }),
    [data?.results, error, isLoading, isValidating]
  );

  return memoizedValue;
}

// ----------------------------------------------------------------------

export async function createProduct(productData: IProductItem) {
  /**
   * Work on server
   */
  const data = { productData };
  const {
    data: { id },
  } = await axiosInstance.post(endpoints.product.create, data);

  /**
   * Work in local
   */
  mutate(
    endpoints.product.list,
    (currentData: any) => {
      const currentProducts: IProductItem[] = currentData?.products;

      const products = [...currentProducts, { ...productData, id }];

      return { ...currentData, products };
    },
    false
  );
}

// ----------------------------------------------------------------------

export async function updateProduct(productData: Partial<IProductItem>) {
  /**
   * Work on server
   */
  const data = { productData };
  await axiosInstance.put(endpoints.product.update, data);

  /**
   * Work in local
   */

  mutate(
    endpoints.product.list,
    (currentData: any) => {
      const currentProducts: IProductItem[] = currentData?.products;

      const products = currentProducts.map((product) =>
        product.id === productData.id ? { ...product, ...productData } : product
      );

      return { ...currentData, products };
    },
    false
  );
}

// ----------------------------------------------------------------------

export async function deleteProduct(productId: string) {
  /**
   * Work on server
   */
  const data = { productId };
  await axiosInstance.patch(endpoints.product.delete, data);

  /**
   * Work in local
   */

  mutate(
    endpoints.product.list,
    (currentData: any) => {
      console.log({ currentData });
      const currentProducts: IProductItem[] = currentData?.products;

      const products = currentProducts.filter((product) => product.id !== productId);

      return { ...currentData, products };
    },
    false
  );
}