import { apiFetch } from './client'
import type { Recipe, PaginatedResponse } from './types'

interface RecipeListParams {
  category?: string
  favorite?: boolean
  sort?: string
  page?: number
  limit?: number
}

export function fetchRecipes(params?: RecipeListParams) {
  const sp = new URLSearchParams()
  if (params?.category) sp.set('category', params.category)
  if (params?.favorite) sp.set('favorite', 'true')
  if (params?.sort) sp.set('sort', params.sort)
  if (params?.page) sp.set('page', String(params.page))
  if (params?.limit) sp.set('limit', String(params.limit))
  const qs = sp.toString()
  return apiFetch<PaginatedResponse<Recipe>>(`/recipes${qs ? `?${qs}` : ''}`)
}

export function fetchRecipe(slug: string) {
  return apiFetch<Recipe>(`/recipes/${slug}`)
}

export function searchRecipes(q: string) {
  return apiFetch<PaginatedResponse<Recipe>>(`/recipes/search?q=${encodeURIComponent(q)}`)
}

export function toggleFavorite(id: string) {
  return apiFetch<Recipe>(`/recipes/${id}/favorite`, { method: 'PATCH' })
}

export interface RecipeFormData {
  title: string
  description?: string
  category_id?: string
  difficulty?: 'easy' | 'medium' | 'hard'
  prep_time?: number
  cook_time?: number
  servings?: number
  image_url?: string
  source_url?: string
  ingredients?: { amount?: number; unit?: string; name: string; group_name?: string; sort_order?: number }[]
  steps?: { step_number: number; instruction: string; duration_minutes?: number }[]
}

export function createRecipe(data: RecipeFormData) {
  return apiFetch<Recipe>('/recipes', {
    method: 'POST',
    body: JSON.stringify(data),
  })
}

export function updateRecipe(id: string, data: RecipeFormData) {
  return apiFetch<Recipe>(`/recipes/${id}`, {
    method: 'PUT',
    body: JSON.stringify(data),
  })
}

export function deleteRecipe(id: string) {
  return apiFetch<{ ok: boolean }>(`/recipes/${id}`, { method: 'DELETE' })
}

export function uploadRecipeImage(id: string, file: File) {
  const formData = new FormData()
  formData.append('file', file)
  return fetch(`/api/recipes/${id}/image`, { method: 'POST', body: formData }).then(r => {
    if (!r.ok) throw new Error('Upload failed')
    return r.json() as Promise<{ image_url: string }>
  })
}

export interface OgData {
  image?: string
  title?: string
  description?: string
}

export function fetchOgPreview(url: string) {
  return apiFetch<OgData>(`/og-preview?url=${encodeURIComponent(url)}`)
}

export function fetchImageFromUrl(recipeId: string, url: string) {
  return apiFetch<{ ok: boolean; image_url: string; og_title?: string; og_description?: string }>(
    `/recipes/${recipeId}/fetch-image`,
    { method: 'POST', body: JSON.stringify({ url }) }
  )
}