import {z} from 'zod'

export type ClusterReference = {kind: string, name?: string | undefined, uuid: unknown};

export type AvailabilityZoneReference = {kind: string, name?: string | undefined, uuid: unknown};

export type VmSnapshot = {expiration_time_msecs?: number | undefined, resources?: ({entity_uuid?: unknown | undefined}) | undefined, snapshot_type?: string | undefined, replication_target_list?: (Array<{cluster_reference?: ClusterReference | undefined, availability_zone_reference?: AvailabilityZoneReference | undefined}>) | undefined, name?: string | undefined};

export type UserReference = {kind: string, name?: string | undefined, uuid: unknown};

export type VmSnapshotMetadata = {last_update_time?: string | undefined, kind: string, uuid?: unknown | undefined, spec_version?: number | undefined, creation_time?: string | undefined, spec_hash?: string | undefined, should_force_translate?: boolean | undefined, owner_reference?: UserReference | undefined, categories?: {[key: string]: string} | undefined, name?: string | undefined};

export type VmSnapshotIntentInput = {spec: VmSnapshot, api_version?: string | undefined, metadata: VmSnapshotMetadata};

export type CreateApiVmSnapshotsArgs = {body: VmSnapshotIntentInput};

export type CreateApiVmSnapshotsOptions = {baseUrl: string, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const clusterReference = z.object({kind: z.string(), name: z.string().optional(), uuid: z.string()});

export const availabilityZoneReference = z.object({kind: z.string(), name: z.string().optional(), uuid: z.string()});

export const messageResource = z.object({message: z.string(), reason: z.string(), details: z.record(z.string(), z.string()).optional()});

export const vmSnapshotDefStatus = z.object({consistency_group_uuid: z.string().optional(), location_agnostic_uuid: z.string().optional(), name: z.string().optional(), replication_target_list: z.array(z.object({cluster_reference: clusterReference.optional(), availability_zone_reference: availabilityZoneReference.optional()})).optional(), state: z.string().optional(), snapshot_type: z.string().optional(), snapshot_file_list: z.array(z.object({file_path: z.string().optional(), snapshot_file_path: z.string().optional()})), expiration_time_msecs: z.number().int().optional(), message_list: z.array(messageResource).optional(), resources: z.object({entity_uuid: z.string().optional()}).optional()});

export const vmSnapshot = z.object({expiration_time_msecs: z.number().int().optional(), resources: z.object({entity_uuid: z.string().optional()}).optional(), snapshot_type: z.string().optional(), replication_target_list: z.array(z.object({cluster_reference: clusterReference.optional(), availability_zone_reference: availabilityZoneReference.optional()})).optional(), name: z.string().max(64).optional()});

export const userReference = z.object({kind: z.string(), name: z.string().optional(), uuid: z.string()});

export const vmSnapshotMetadata = z.object({last_update_time: z.string().optional(), kind: z.string(), uuid: z.string().optional(), spec_version: z.number().int().optional(), creation_time: z.string().optional(), spec_hash: z.string().optional(), should_force_translate: z.boolean().optional(), owner_reference: userReference.optional(), categories: z.record(z.string(), z.string()).optional(), name: z.string().max(64).optional()});

export const vmSnapshotIntentResponse = z.object({status: vmSnapshotDefStatus.optional(), spec: vmSnapshot.optional(), api_version: z.string(), metadata: vmSnapshotMetadata});

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
};

/**
 * Create VM snapshot
 * 
 * POST /vm_snapshots
 */
export const createApiVmSnapshots = async (args: CreateApiVmSnapshotsArgs, options: CreateApiVmSnapshotsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/vm_snapshots${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(vmSnapshotIntentResponse, await res.json())
};