/**
 * Data utilities for Next.js WordPress migration
 */

import wordpressData from '../data/processed/wordpress-data.json';

export interface SiteInfo {
  title: string;
  description: string;
  baseUrl: string;
  defaultLocale: string;
  locales: string[];
}

export interface TranslationReference {
  locale: string;
  id: number;
}

export interface Page {
  id: number;
  translationKey: string;
  locale: string;
  slug: string;
  path: string;
  title: string;
  titleHtml: string;
  contentHtml: string;
  excerptHtml: string;
  featuredImage: number | null;
  updatedAt: string;
  translation: TranslationReference | null;
}

export interface Post {
  id: number;
  translationKey: string;
  locale: string;
  slug: string;
  path: string;
  title: string;
  titleHtml: string;
  contentHtml: string;
  excerptHtml: string;
  featuredImage: number | null;
  datePublished: string;
  updatedAt: string;
  translation: TranslationReference | null;
}

export interface Product {
  id: number;
  translationKey: string;
  locale: string;
  slug: string;
  path: string;
  name: string;
  shortDescriptionHtml: string;
  descriptionHtml: string;
  images: string[];
  featuredImage: string | null;
  sku: string;
  regularPrice: string;
  salePrice: string;
  currency: string;
  stockStatus: string;
  categories: Array<{ id: number; name: string; slug: string }>;
  attributes: any[];
  variations: any[];
  updatedAt: string;
  translation: TranslationReference | null;
}

export interface ProductCategory {
  id: number;
  translationKey: string;
  locale: string;
  slug: string;
  name: string;
  path: string;
  description: string;
  count: number;
  translation: TranslationReference | null;
}

export interface Media {
  id: number;
  filename: string;
  url: string;
  localPath: string;
  alt: string;
  width: number | null;
  height: number | null;
  mimeType: string | null;
}

export interface Redirect {
  source: string;
  destination: string;
  permanent: boolean;
  locale: string;
}

export interface WordPressData {
  site: SiteInfo;
  content: {
    pages: Page[];
    posts: Post[];
    products: Product[];
    categories: ProductCategory[];
  };
  assets: {
    media: Media[];
    map: Record<string, string>;
  };
  redirects: Redirect[];
  exportDate: string;
}

// Load data
// Use type assertion to handle the JSON import properly
const data = wordpressData as unknown as WordPressData;

// Data access functions
export const getSiteInfo = (): SiteInfo => data.site;

export const getAllPages = (): Page[] => data.content.pages;

export const getAllPosts = (): Post[] => data.content.posts;

export const getAllProducts = (): Product[] => data.content.products;

export const getAllCategories = (): ProductCategory[] => data.content.categories;

export const getMediaById = (id: number): Media | undefined => {
  return data.assets.media.find(m => m.id === id);
};

export const getMediaByUrl = (url: string): Media | undefined => {
  const localPath = data.assets.map[url];
  if (!localPath) return undefined;
  return data.assets.media.find(m => m.localPath === localPath);
};

export const getAssetMap = (): Record<string, string> => {
  return data.assets?.map || {};
};

export const getRedirects = (): Redirect[] => data.redirects;

// Locale-specific queries
export const getPagesByLocale = (locale: string): Page[] => {
  return data.content.pages.filter(p => p.locale === locale);
};

export const getPostsByLocale = (locale: string): Post[] => {
  return data.content.posts.filter(p => p.locale === locale);
};

export const getProductsByLocale = (locale: string): Product[] => {
  return data.content.products.filter(p => p.locale === locale);
};

export const getCategoriesByLocale = (locale: string): ProductCategory[] => {
  return data.content.categories.filter(c => c.locale === locale);
};

// Single item queries
export const getPageBySlug = (slug: string, locale: string): Page | undefined => {
  return data.content.pages.find(p => p.slug === slug && p.locale === locale);
};

export const getPostBySlug = (slug: string, locale: string): Post | undefined => {
  return data.content.posts.find(p => p.slug === slug && p.locale === locale);
};

export const getProductBySlug = (slug: string, locale: string): Product | undefined => {
  return data.content.products.find(p => p.slug === slug && p.locale === locale);
};

export const getCategoryBySlug = (slug: string, locale: string): ProductCategory | undefined => {
  return data.content.categories.find(c => c.slug === slug && c.locale === locale);
};

// Translation helpers
export const getTranslation = <T extends { translationKey: string; locale: string }>(
  item: T,
  targetLocale: string
): T | undefined => {
  const collection = [
    ...getAllPages(),
    ...getAllPosts(),
    ...getAllProducts(),
    ...getAllCategories()
  ];
  const result = collection.find(
    (i: any) => i.translationKey === item.translationKey && i.locale === targetLocale
  );
  return result as unknown as T | undefined;
};

// Asset URL replacement
export const replaceAssetUrls = (html: string): string => {
  let result = html;
  Object.entries(data.assets.map).forEach(([wpUrl, localPath]) => {
    result = result.replace(new RegExp(wpUrl, 'g'), localPath);
  });
  return result;
};

// Additional functions for product categories
export const getProductCategory = (slug: string, locale: string): ProductCategory | undefined => {
  return data.content.categories.find(c => c.slug === slug && c.locale === locale);
};

export const getProductsByCategory = (categoryId: number, locale: string): Product[] => {
  return data.content.products.filter(p =>
    p.locale === locale && p.categories.some(c => c.id === categoryId)
  );
};

// Get products by category slug
export const getProductsByCategorySlug = (categorySlug: string, locale: string): Product[] => {
  const category = getCategoryBySlug(categorySlug, locale);
  if (!category) return [];
  return getProductsByCategory(category.id, locale);
};

// Get related products (same category, excluding current product)
export const getRelatedProducts = (product: Product, locale: string, limit: number = 4): Product[] => {
  if (product.categories.length === 0) return [];
  
  // Get first category
  const firstCategory = product.categories[0];
  const categoryProducts = getProductsByCategory(firstCategory.id, locale);
  
  // Filter out current product and limit results
  return categoryProducts
    .filter(p => p.id !== product.id)
    .slice(0, limit);
};

// Get categories by slugs
export const getCategoriesBySlugs = (slugs: string[], locale: string): ProductCategory[] => {
  return data.content.categories.filter(c =>
    slugs.includes(c.slug) && c.locale === locale
  );
};

// Locale-specific queries for static generation
export const getAllCategorySlugsForLocale = (locale: string): string[] => {
  return [...new Set(data.content.categories.filter(c => c.locale === locale).map(c => c.slug))];
};

export const getAllPageSlugsForLocale = (locale: string): string[] => {
  return [...new Set(data.content.pages.filter(p => p.locale === locale).map(p => p.slug))];
};

export const getAllPostSlugsForLocale = (locale: string): string[] => {
  return [...new Set(data.content.posts.filter(p => p.locale === locale).map(p => p.slug))];
};

export const getAllProductSlugsForLocale = (locale: string): string[] => {
  return [...new Set(data.content.products.filter(p => p.locale === locale).map(p => p.slug))];
};

// Get items for locale
export const getCategoriesForLocale = (locale: string): ProductCategory[] => {
  return data.content.categories.filter(c => c.locale === locale);
};

export const getPagesForLocale = (locale: string): Page[] => {
  return data.content.pages.filter(p => p.locale === locale);
};

export const getPostsForLocale = (locale: string): Post[] => {
  return data.content.posts.filter(p => p.locale === locale);
};

export const getProductsForLocale = (locale: string): Product[] => {
  return data.content.products.filter(p => p.locale === locale);
};