import { apiRequest } from '../lib/api'
import { getActiveBusinessId } from '../lib/businessContext'
import type { ProductApi } from './productService'

export type ProductAiLanguage = 'en' | 'fa'

export type ProductAiFillField = 'summary' | 'description' | 'nameEn'
export type ProductAiPromptField = Extract<ProductAiFillField, 'summary' | 'description'>

export interface CreateProductByAiPayload {
  categoryId: string
  name: string
  language: ProductAiLanguage
}

export interface FillProductFieldByAiPayload {
  field: ProductAiFillField
  prompt?: string
  title?: string
  nameFa?: string
  categoryId?: string
}

export async function createProductByAi(payload: CreateProductByAiPayload) {
  const businessId = getActiveBusinessId()
  if (!businessId) {
    throw new Error('No active business selected. Please sign in again.')
  }

  return apiRequest<{ message: string; product: ProductApi }>(
    `/businesses/${businessId}/products/ai-create`,
    {
      method: 'POST',
      auth: true,
      body: payload,
    },
  )
}

export async function fillProductFieldByAi(payload: FillProductFieldByAiPayload) {
  const businessId = getActiveBusinessId()
  if (!businessId) {
    throw new Error('No active business selected. Please sign in again.')
  }

  return apiRequest<
    | { field: 'summary'; text: string }
    | { field: 'description'; html: string }
    | { field: 'nameEn'; text: string }
  >(`/businesses/${businessId}/products/ai-fill`, {
    method: 'POST',
    auth: true,
    body: payload,
  })
}