import {z} from 'zod'

export type GetApiClusterScaleOperationIdArgs = {operation_id: string};

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

export const scaleDirection = z.enum(["up", "down"]);

export const scaleOperationStatus = z.enum(["pending", "in_progress", "completed", "failed", "cancelled"]);

export const stepStatus = z.enum(["pending", "in_progress", "completed", "failed"]);

export const stepDetail = z.object({step: z.number().int(), name: z.string(), status: stepStatus.optional(), started_at: z.string().nullable().optional(), completed_at: z.string().nullable().optional(), detail: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const timingSummary = z.object({node_scale_duration_s: z.number().int().optional(), workload_restart_duration_s: z.number().int().optional(), cleanup_duration_s: z.number().int().optional(), total_duration_s: z.number().int().optional()}).and(z.record(z.string(), z.unknown()));

export const scaleOperationStatusResponse = z.object({operation_id: z.string(), direction: scaleDirection, status: scaleOperationStatus, current_step: z.number().int(), total_steps: z.number().int().optional(), steps: z.array(stepDetail), cluster_name: z.string(), namespace: z.string(), initiated_by: z.string(), created_at: z.string(), updated_at: z.string(), completed_at: z.string().nullable().optional(), error_message: z.string().nullable().optional(), timing_summary: timingSummary.nullable().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 Scale Operation Status
 * 
 * GET /cluster/scale/{operation_id}
 */
export const getApiClusterScaleOperationId = async (args: GetApiClusterScaleOperationIdArgs, options?: GetApiClusterScaleOperationIdOptions) => {
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/scale/${encodeURIComponent(String(args.operation_id))}${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(scaleOperationStatusResponse, await res.json())
};