import {z} from 'zod'

export type GetApiApplicationsApplicationIdHostsJsonArgs = {application_id: number, 'filter[hostname]'?: string | undefined, 'filter[ids]'?: Array<string> | undefined, page?: number | undefined};

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

export const appSummaryDataResponse = z.object({apdex_score: z.number().optional(), error_rate: z.number().optional(), instance_count: z.number().int().optional(), response_time: z.number().optional(), throughput: z.number().optional()});

export const endUserSummaryDataResponse = z.object({apdex_score: z.number().optional(), response_time: z.number().optional(), throughput: z.number().optional()});

export const applicationHostLinksResponse = z.object({application: z.number().int().optional(), application_instances: z.array(z.number().int()).optional(), server: z.number().int().optional()});

export const applicationHostResponseType = z.object({host: z.string().optional(), application_name: z.string().optional(), application_summary: appSummaryDataResponse.optional(), end_user_summary: endUserSummaryDataResponse.optional(), health_status: z.string().optional(), id: z.number().int().optional(), language: z.number().int().optional(), links: applicationHostLinksResponse.optional()});

export const applicationHostResponse = z.object({application_hosts: z.array(applicationHostResponseType).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
};

/**
 * List
 * 
 * GET /applications/{application_id}/hosts.json
 */
export const getApiApplicationsApplicationIdHostsJson = async (args: GetApiApplicationsApplicationIdHostsJsonArgs, options?: GetApiApplicationsApplicationIdHostsJsonOptions) => {
const {baseUrl = "https://api.newrelic.com/v2", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args['filter[hostname]'] != null) query.append("filter[hostname]", String(args['filter[hostname]']))
if (args['filter[ids]'] != null) query.append("filter[ids]", args['filter[ids]'].join(','))
if (args.page != null) query.append("page", String(args.page))
if (APIKeyHeader !== undefined) headers.set("Api-Key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/applications/${encodeURIComponent(String(args.application_id))}/hosts.json${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(applicationHostResponse, await res.json())
};