import {z} from 'zod'

export type BulkNvsLink = {inventoryItemId?: string | undefined, supplierCode?: string | undefined, unitsPerPack?: (number | unknown) | undefined};

export type BulkLinkNvsProductsRequest = {vendorId?: string | undefined, links?: Array<BulkNvsLink> | undefined};

export type CreateApiIntegrationsNvsLinksArgs = {body: BulkLinkNvsProductsRequest};

export type CreateApiIntegrationsNvsLinksOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const bulkLinkNvsProductsResponse = z.object({linked: z.union([z.number().int(), z.string()]).optional(), errors: z.array(z.string()).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Links the suggestions a person accepted. Bad lines are reported; the rest still link.
 * 
 * POST /integrations/nvs/links
 */
export const createApiIntegrationsNvsLinks = async (args: CreateApiIntegrationsNvsLinksArgs, options?: CreateApiIntegrationsNvsLinksOptions) => {
const {baseUrl = "https://api.clinicos.vet/backend/business", fetch: fetchFn = fetch, Bearer} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/integrations/nvs/links${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(bulkLinkNvsProductsResponse, await res.json())
};