import {z} from 'zod'

export type GetApiIpAllowListsIdArgs = {'X-EARLY-ACCESS': 'ip-allow-lists', Accept: string};

export type GetApiIpAllowListsIdOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const cidrEntry = z.object({cidr: z.string(), description: z.string().max(64).nullable().optional()});

export const ipAllowList = z.object({id: z.string().optional(), type: z.literal("ip_allow_list").optional(), state: z.enum(["enabled", "disabled"]), cidr_entries: z.array(cidrEntry)});

export const getApiIpAllowListsIdResponse = z.object({ip_allow_list: ipAllowList});

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 an IP allow list
 * 
 * GET /ip_allow_lists/{id}
 */
export const getApiIpAllowListsId = async (args: GetApiIpAllowListsIdArgs, options?: GetApiIpAllowListsIdOptions) => {
const {baseUrl = "https://api.pagerduty.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args['X-EARLY-ACCESS'] != null) headers.set("X-EARLY-ACCESS", String(args['X-EARLY-ACCESS']))
if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/ip_allow_lists/${encodeURIComponent(String(args.id))}${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(getApiIpAllowListsIdResponse, await res.json())
};