import {z} from 'zod'

export type GetApiJourneysJourneyTokenBatchesJourneyBatchTokenArgs = {journey_token: string, journey_batch_token: string};

export type GetApiJourneysJourneyTokenBatchesJourneyBatchTokenOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const journeyApplicationBatchFullResponseSchema = z.object({journey_batch_status: z.enum(["pending", "complete", "failed", "pre_run"]).optional(), journey_batch_token: z.string().optional(), _links: z.object({self: z.object({href: z.string().optional()}).optional(), applications: z.object({href: z.string().optional()}).optional()}).optional(), error: z.string().optional(), completed_at: z.number().optional(), created_at: z.number().optional(), summary: z.object({status: z.object({queued: z.number().optional(), running: z.number().optional(), waiting_review: z.number().optional(), error: z.number().optional(), completed: z.number().optional(), data_request: z.number().optional(), pending_action: z.number().optional(), pending_documents: z.number().optional(), withdrawn: z.number().optional(), pending_journey_application_review: z.number().optional(), pending_additional_entities: z.number().optional(), pending_step_up: z.number().optional(), pending_workflow_service: z.number().optional(), expired: z.number().optional(), pending_reconciliation: z.number().optional()}).optional(), task_status: z.object({response_returned: z.number().optional(), application_failed: z.number().optional(), pending: z.number().optional(), timed_out: z.number().optional()}).optional(), total_records: z.number().optional()}).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 Journey Application Batch Summary
 * 
 * GET /journeys/{journey_token}/batches/{journey_batch_token}
 * 
 * Also accepts auth: basic
 */
export const getApiJourneysJourneyTokenBatchesJourneyBatchToken = async (args: GetApiJourneysJourneyTokenBatchesJourneyBatchTokenArgs, options?: GetApiJourneysJourneyTokenBatchesJourneyBatchTokenOptions) => {
const {baseUrl = "https://sandbox.alloy.co/v1", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/journeys/${encodeURIComponent(String(args.journey_token))}/batches/${encodeURIComponent(String(args.journey_batch_token))}${query.size > 0 ? `?${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(journeyApplicationBatchFullResponseSchema, await res.json())
};