import {z} from 'zod'

export type GetApiMonitoringMetricsMetricCurrentArgs = {metric: 'connections' | 'totalConnections' | 'numberOfSubscriptions' | 'sentMessages' | 'sentBytes' | 'receivedMessages' | 'receivedBytes' | 'slowConsumers' | 'memory' | 'storage' | 'accounts' | 'haAssets' | 'apiTotal' | 'apiErrors' | 'apiInflight' | 'streams' | 'consumers' | 'totalMessages' | 'totalBytes' | 'numberOfSubjects' | 'numberOfDeleted' | 'lostMessages' | 'lostBytes' | 'numberOfAckPending' | 'numberOfRedelivered' | 'numberOfWaiting' | 'numberOfPending' | 'pushBound' | 'paused' | 'deliveredConsumerSequence' | 'deliveredStreamSequence' | 'deliveredLastActive' | 'ackFloorConsumerSequence' | 'ackFloorStreamSequence' | 'ackFloorLastActive' | 'ram' | 'cpu' | 'slowConsumersClients' | 'slowConsumersRoutes' | 'slowConsumersGateways' | 'slowConsumersMeshs' | 'sentMessagesRate' | 'sentBytesRate' | 'receivedMessagesRate' | 'receivedBytesRate', node?: string | undefined, account?: string | undefined, stream?: string | undefined, consumer?: string | undefined};

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

export const metricPoint = z.object({ts: z.number().int().optional(), value: z.number().optional()});

export const currentMetricResponse = z.object({message: z.string().optional(), data: metricPoint.optional(), metadata: z.record(z.string(), z.unknown()).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 current metric value
 * 
 * GET /monitoring/metrics/{metric}/current
 * 
 * Also accepts auth: apiKeyAuth
 */
export const getApiMonitoringMetricsMetricCurrent = async (args: GetApiMonitoringMetricsMetricCurrentArgs, options?: GetApiMonitoringMetricsMetricCurrentOptions) => {
const {baseUrl = "https://api.quiva.ai", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.node != null) query.append("node", String(args.node))
if (args.account != null) query.append("account", String(args.account))
if (args.stream != null) query.append("stream", String(args.stream))
if (args.consumer != null) query.append("consumer", String(args.consumer))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/monitoring/metrics/${encodeURIComponent(String(args.metric))}/current${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(currentMetricResponse, await res.json())
};