import {z} from 'zod'

export type DiskAttachment = {attachment_type: 'os' | 'data', disk_id: string, mode: 'read-only' | 'read-write'};

export type PartialHostChannelAdapter = {ib_partition_id?: string | undefined, transport_partition_id?: string | undefined};

export type PrivateIPv4Address = {address: string};

export type PublicIPv4Address = {address: string, id: string, type: string};

export type IPAddresses = {private_ipv4: PrivateIPv4Address, public_ipv4: PublicIPv4Address};

export type NetworkInterface = {external_dns_name: string, id: string, interface_type: string, ips: Array<IPAddresses>, mac_address: string, name: string, network: string, subnet: string};

export type ReservationSpecification = {id?: string | undefined, selection_strategy?: ('lowest_cost' | 'on_demand') | undefined};

export type VirtualizationFeatures = {nested_virtualization?: boolean | undefined};

export type InstancesPostRequestV1 = {commitment_period?: number | undefined, crusoe_watch_agent_install_mode?: ('docker' | 'native') | undefined, custom_image?: string | undefined, disks?: Array<DiskAttachment> | undefined, host_channel_adapters?: Array<PartialHostChannelAdapter> | undefined, image?: string | undefined, install_crusoe_watch_agent?: (boolean | null) | undefined, location: string, maintenance_policy?: string | undefined, name: string, network_interfaces?: Array<NetworkInterface> | undefined, nvlink_domain_id?: string | undefined, reservation_specification?: ReservationSpecification | undefined, shutdown_script?: string | undefined, ssh_public_key: string, startup_script?: string | undefined, type: string, virtualization_features?: VirtualizationFeatures | undefined};

export type CreateApiProjectsProjectIdComputeVmsInstancesArgs = {project_id: string, body: InstancesPostRequestV1};

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

export const operation = z.object({completed_at: z.string(), metadata: z.string(), operation_id: z.string(), result: z.string().optional(), started_at: z.string(), state: z.enum(["IN_PROGRESS", "SUCCEEDED", "FAILED"])});

export const asyncOperationResponse = z.object({operation: operation});

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
};

/**
 * Creates a VM in the project and returns the async operation.
 * 
 * POST /projects/{project_id}/compute/vms/instances
 */
export const createApiProjectsProjectIdComputeVmsInstances = async (args: CreateApiProjectsProjectIdComputeVmsInstancesArgs, options?: CreateApiProjectsProjectIdComputeVmsInstancesOptions) => {
const {baseUrl = "https://api.cloud.crusoe.ai/v1", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/projects/${encodeURIComponent(String(args.project_id))}/compute/vms/instances${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(asyncOperationResponse, await res.json())
};