import {z} from 'zod'

export type Duration = {count?: number | undefined, unit?: ('UNIT_UNSPECIFIED' | 'MONTH' | 'DAY' | 'HOUR') | undefined};

export type Extension = {duration?: Duration | undefined, partnerUserToken?: string | undefined};

export type ExtendSubscriptionRequest = {extension?: Extension | undefined, requestId?: string | undefined};

export type CreateApiV1PartnersPartnersIdSubscriptionsSubscriptionsIdExtendArgs = {partnersId: string, subscriptionsId: string, body: ExtendSubscriptionRequest};

export type CreateApiV1PartnersPartnersIdSubscriptionsSubscriptionsIdExtendOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, Oauth2c?: string | undefined, fetch?: typeof fetch | undefined};

export const extendSubscriptionResponse = z.object({cycleEndTime: z.string().optional(), freeTrialEndTime: z.string().optional(), renewalTime: 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
};

/**
 * [Opt-in only] Most partners should be on auto-extend by default. Extends a subscription service for their customers on an ongoing basis for the subscription to remain active and renewable. It should be called directly by the partner using service accounts.
 * 
 * POST /v1/partners/{partnersId}/subscriptions/{subscriptionsId}:extend
 */
export const createApiV1PartnersPartnersIdSubscriptionsSubscriptionsIdExtend = async (args: CreateApiV1PartnersPartnersIdSubscriptionsSubscriptionsIdExtendArgs, options?: CreateApiV1PartnersPartnersIdSubscriptionsSubscriptionsIdExtendOptions) => {
const {baseUrl = "https://paymentsresellersubscription.googleapis.com", fetch: fetchFn = fetch, Oauth2, Oauth2c} = options ?? {}

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

if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)
if (Oauth2c !== undefined) headers.set('authorization', `Bearer ${Oauth2c}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/partners/${encodeURIComponent(String(args.partnersId))}/subscriptions/${encodeURIComponent(String(args.subscriptionsId))}:extend${query.size > 0 ? `?${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(extendSubscriptionResponse, await res.json())
};