import {z} from 'zod'

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

export const kafkaConnectStatefulSetStatus = z.object({name: z.string(), memory: z.string(), replicas: z.number().int()}).and(z.record(z.string(), z.unknown()));

export const ebsVolumeStatus = z.object({volume_type: z.string(), size_gb: z.number().int(), iops: z.number().int(), throughput_mbps: z.number().int().nullable().optional(), volumes_per_node: z.number().int().optional()}).and(z.record(z.string(), z.unknown()));

export const tierNodeGroup = z.object({role: z.string(), name: z.string(), az: z.string().nullable().optional(), instance_type: z.string().nullable().optional(), vcpu_per_node: z.number().int().nullable().optional(), memory_gib_per_node: z.number().int().nullable().optional(), nodes: z.number().int(), status: z.string().nullable().optional(), ebs_volumes: z.array(ebsVolumeStatus).optional()}).and(z.record(z.string(), z.unknown()));

export const tierSpec = z.object({name: z.string(), order: z.number().int(), kafka_memory: z.string(), kafka_connect_memory: z.string(), kafka_connect_replicas: z.number().int(), node_groups: z.array(tierNodeGroup).optional()}).and(z.record(z.string(), z.unknown()));

export const clusterStatusResponse = z.object({current_tier: z.string(), kafka_memory: z.string(), kafka_connect_memory: z.string(), kafka_connect_replicas: z.number().int(), kafka_connect_statefulsets: z.array(kafkaConnectStatefulSetStatus).optional(), tiers: z.array(tierSpec).optional(), active_operation_id: z.string().nullable().optional(), scaling_available: z.boolean().optional(), live_node_groups: z.array(tierNodeGroup).optional()}).and(z.record(z.string(), z.unknown()));

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 Cluster Status
 * 
 * GET /cluster/status
 */
export const getApiClusterStatus = async (options?: GetApiClusterStatusOptions) => {
const {baseUrl = "https://api.streamkap.com", fetch: fetchFn = fetch, FronteggHTTPAuthentication} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/cluster/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(clusterStatusResponse, await res.json())
};