import {z} from 'zod'

export type StoreId = string;

export type GetApiManagerLoyaltyV1SourceUserEnrollmentConfigArgs = {'X-Store-Id': StoreId, source: string};

export type GetApiManagerLoyaltyV1SourceUserEnrollmentConfigOptions = {baseUrl?: string | undefined, OAuth20?: string | undefined, fetch?: typeof fetch | undefined};

export const enrollmentField = z.object({key: z.string().optional(), required: z.boolean().optional(), type: z.enum(["TEXT", "NUMBER", "EMAIL", "PASSWORD", "PHONE", "DATE", "DATE_TIME", "URL", "FULL_NAME", "ADDRESS"]).optional(), label: z.string().optional()});

export const getEnrollmentConfigResponse = z.object({enrollmentFields: z.array(enrollmentField).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
};

/**
 * Get enrollment config for a loyalty provider
 * 
 * GET /manager/loyalty/v1/{source}/user/enrollment-config
 */
export const getApiManagerLoyaltyV1SourceUserEnrollmentConfig = async (args: GetApiManagerLoyaltyV1SourceUserEnrollmentConfigArgs, options?: GetApiManagerLoyaltyV1SourceUserEnrollmentConfigOptions) => {
const {baseUrl = "https://partners.tryotter.com", fetch: fetchFn = fetch, OAuth20} = options ?? {}

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

if (args['X-Store-Id'] != null) headers.set("X-Store-Id", String(args['X-Store-Id']))
if (OAuth20 !== undefined) headers.set('authorization', `Bearer ${OAuth20}`)

const url = `${baseUrl.replace(/\/+$/, '')}/manager/loyalty/v1/${encodeURIComponent(String(args.source))}/user/enrollment-config${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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