import {z} from 'zod'

export type GetApiPublicV1ClustersClusterNameConsumergroupsConsumerGroupArgs = {clusterName: string, consumerGroup: string};

export type GetApiPublicV1ClustersClusterNameConsumergroupsConsumerGroupOptions = {baseUrl: string, httpAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const consumerGroupState = z.enum(["Unknown", "PreparingRebalance", "CompletingRebalance", "Stable", "Dead", "Empty", "Assigning", "Reconciling"]);

export const mapLabelKeyString = z.record(z.string(), z.string());

export const member = z.object({id: z.string(), clientId: z.string().optional(), host: z.string().optional()});

export const offsetPerPartition = z.object({memberId: z.string().optional(), topicName: z.string(), partition: z.number().int(), lastCommittedOffset: z.number().int().optional(), partitionBeginningOffset: z.number().int(), partitionEndOffset: z.number().int(), lag: z.number().int().optional()});

export const consumerGroupDetails = z.object({name: z.string(), state: consumerGroupState, consumeRateInSeconds: z.number().optional(), overallLag: z.number().int(), maxLagTimeInSeconds: z.number().int().optional(), labels: mapLabelKeyString, members: z.array(member).optional(), offsetPerPartition: z.array(offsetPerPartition).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
};

/**
 * Consumer group details
 * 
 * GET /public/v1/clusters/{clusterName}/consumergroups/{consumerGroup}
 */
export const getApiPublicV1ClustersClusterNameConsumergroupsConsumerGroup = async (args: GetApiPublicV1ClustersClusterNameConsumergroupsConsumerGroupArgs, options: GetApiPublicV1ClustersClusterNameConsumergroupsConsumerGroupOptions) => {
const {baseUrl, fetch: fetchFn = fetch, httpAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/public/v1/clusters/${encodeURIComponent(String(args.clusterName))}/consumergroups/${encodeURIComponent(String(args.consumerGroup))}${query.size > 0 ? `?${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(consumerGroupDetails, await res.json())
};