import { ProductResponse, CategoryResponse, BrandResponse } from './catalogService';

const API_URL =
  process.env.API_URL ||
  process.env.NEXT_PUBLIC_API_URL ||
  'https://ifixkartbe.trionixsolution.com';

async function serverFetch<T>(endpoint: string, options: RequestInit = {}): Promise<T> {
  const res = await fetch(`${API_URL}${endpoint}`, {
    ...options,
    headers: {
      'Content-Type': 'application/json',
      ...options.headers,
    },
  });

  if (!res.ok) {
    throw new Error(`Catalog Server API call failed: ${res.status} ${res.statusText} at ${endpoint}`);
  }
  return res.json();
}

export const catalogServerService = {
  async getProducts(): Promise<ProductResponse[]> {
    const data = await serverFetch<any>('/api/v1/catalog/products?page=1&limit=48', {
      next: { revalidate: 30, tags: ['products'] }
    });
    return Array.isArray(data) ? data : data?.products || [];
  },

  async getProductDetail(slug: string): Promise<{
    product: ProductResponse;
    reviews: any[];
    related_products: ProductResponse[];
    compatible_devices: any[];
    specifications: any[];
  }> {
    return serverFetch<{
      product: ProductResponse;
      reviews: any[];
      related_products: ProductResponse[];
      compatible_devices: any[];
      specifications: any[];
    }>(`/api/v1/catalog/products/detail/${slug}`, {
      next: { revalidate: 60, tags: [`product-${slug}`] }
    });
  },

  async getCategories(): Promise<CategoryResponse[]> {
    return serverFetch<CategoryResponse[]>('/api/v1/catalog/categories/all', {
      next: { revalidate: 300, tags: ['categories'] }
    });
  },

  async getBrands(): Promise<BrandResponse[]> {
    return serverFetch<BrandResponse[]>('/api/v1/catalog/brands/all', {
      next: { revalidate: 300, tags: ['brands'] }
    });
  },

  async fetchLayoutConfigOnServer(): Promise<any> {
    return serverFetch('/api/v1/storefront/layout/home', {
      cache: 'no-store'
    });
  }
};