import fs from 'fs';
import path from 'path';
import matter from 'gray-matter';

export interface ProductFrontmatter {
  title: string;
  sku: string;
  description: string;
  categories: string[];
  images: string[];
  locale: string;
}

export interface ProductMdx {
  slug: string;
  frontmatter: ProductFrontmatter;
  content: string;
}

export async function getProductBySlug(slug: string, locale: string): Promise<ProductMdx | null> {
  const productsDir = path.join(process.cwd(), 'data', 'products', locale);
  const filePath = path.join(productsDir, `${slug}.mdx`);

  if (!fs.existsSync(filePath)) {
    return null;
  }

  const fileContent = fs.readFileSync(filePath, 'utf8');
  const { data, content } = matter(fileContent);

  return {
    slug,
    frontmatter: data as ProductFrontmatter,
    content,
  };
}

export async function getAllProductSlugs(locale: string): Promise<string[]> {
  const productsDir = path.join(process.cwd(), 'data', 'products', locale);
  if (!fs.existsSync(productsDir)) return [];
  
  const files = fs.readdirSync(productsDir);
  return files.filter(file => file.endsWith('.mdx')).map(file => file.replace(/\.mdx$/, ''));
}