import {z} from 'zod'

export type GetApiStatusArgs = {last_n_hours?: number | undefined, id?: number | undefined, terminate_pid?: number | undefined, authorization?: string | undefined, mode?: string | undefined};

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

export const getApiStatusResponse = z.object({});

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
};

/**
 * Obtain status information about the endpoint
 * 
 * GET /status
 */
export const getApiStatus = async (args: GetApiStatusArgs, options?: GetApiStatusOptions) => {
const {baseUrl = "https://arax.transltr.io/api/arax/v1.4", fetch: fetchFn = fetch} = options ?? {}

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

if (args.last_n_hours != null) query.append("last_n_hours", String(args.last_n_hours))
if (args.id != null) query.append("id", String(args.id))
if (args.terminate_pid != null) query.append("terminate_pid", String(args.terminate_pid))
if (args.authorization != null) query.append("authorization", String(args.authorization))
if (args.mode != null) query.append("mode", String(args.mode))

const url = `${baseUrl.replace(/\/+$/, '')}/status${query.size > 0 ? `?${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(getApiStatusResponse, await res.json())
};