import { Product, ProductCreate, Shop, ShopCreate, ShoppingEvent, ShoppingEventCreate, Brand, BrandCreate, Grocery, GroceryCreate, GroceryCategory, GroceryCategoryCreate } from '../types';

const API_BASE_URL = '/api';

const api = {
  get: <T>(url: string): Promise<{ data: T }> =>
    fetch(`${API_BASE_URL}${url}`).then(res => res.json()).then(data => ({ data })),
  post: <T>(url: string, body: any): Promise<{ data: T }> =>
    fetch(`${API_BASE_URL}${url}`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(body),
    }).then(res => res.json()).then(data => ({ data })),
  put: <T>(url: string, body: any): Promise<{ data: T }> =>
    fetch(`${API_BASE_URL}${url}`, {
      method: 'PUT',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(body),
    }).then(res => res.json()).then(data => ({ data })),
  delete: (url: string): Promise<void> =>
    fetch(`${API_BASE_URL}${url}`, { method: 'DELETE' }).then(() => {}),
};

// Product API functions
export const productApi = {
  getAll: () => api.get<Product[]>('/products/'),
  getById: (id: number) => api.get<Product>(`/products/${id}`),
  create: (product: ProductCreate) => api.post<Product>('/products/', product),
  update: (id: number, product: Partial<ProductCreate>) =>
    api.put<Product>(`/products/${id}`, product),
  delete: (id: number) => api.delete(`/products/${id}`),
};

// Shop API functions
export const shopApi = {
  getAll: () => api.get<Shop[]>('/shops/'),
  getById: (id: number) => api.get<Shop>(`/shops/${id}`),
  create: (shop: ShopCreate) => api.post<Shop>('/shops/', shop),
  update: (id: number, shop: Partial<ShopCreate>) =>
    api.put<Shop>(`/shops/${id}`, shop),
  delete: (id: number) => api.delete(`/shops/${id}`),
};

// Brand API functions
export const brandApi = {
  getAll: () => api.get<Brand[]>('/brands/'),
  getById: (id: number) => api.get<Brand>(`/brands/${id}`),
  create: (brand: BrandCreate) => api.post<Brand>('/brands/', brand),
  update: (id: number, brand: Partial<BrandCreate>) =>
    api.put<Brand>(`/brands/${id}`, brand),
  delete: (id: number) => api.delete(`/brands/${id}`),
};

// Grocery Category API functions
export const groceryCategoryApi = {
  getAll: () => api.get<GroceryCategory[]>('/grocery-categories/'),
  getById: (id: number) => api.get<GroceryCategory>(`/grocery-categories/${id}`),
  create: (category: GroceryCategoryCreate) => api.post<GroceryCategory>('/grocery-categories/', category),
  update: (id: number, category: Partial<GroceryCategoryCreate>) => api.put<GroceryCategory>(`/grocery-categories/${id}`, category),
  delete: (id: number) => api.delete(`/grocery-categories/${id}`),
};

// Shopping Event API functions
export const shoppingEventApi = {
  getAll: () => api.get<ShoppingEvent[]>('/shopping-events/'),
  getById: (id: number) => api.get<ShoppingEvent>(`/shopping-events/${id}`),
  create: (event: ShoppingEventCreate) => api.post<ShoppingEvent>('/shopping-events/', event),
  update: (id: number, event: ShoppingEventCreate) =>
    api.put<ShoppingEvent>(`/shopping-events/${id}`, event),
  delete: (id: number) => api.delete(`/shopping-events/${id}`),
};

// Grocery API functions
export const groceryApi = {
  getAll: () => api.get<Grocery[]>('/groceries/'),
  getById: (id: number) => api.get<Grocery>(`/groceries/${id}`),
  create: (grocery: GroceryCreate) => api.post<Grocery>('/groceries/', grocery),
  update: (id: number, grocery: Partial<GroceryCreate>) =>
    api.put<Grocery>(`/groceries/${id}`, grocery),
  delete: (id: number) => api.delete(`/groceries/${id}`),
};

// Statistics API functions
export const statsApi = {
  getCategories: () => api.get('/stats/categories'),
  getShops: () => api.get('/stats/shops'),
};

export default api;