import {z} from 'zod'

export type Timestamp = number;

export type TimeRangeStartEnd = {start: Timestamp, end: Timestamp};

export type TimeRangeSelectorTime = {timestamp: TimeRangeStartEnd};

export type Cursor = string;

export type PageSize = number;

export type MachineMetricsRequest = {machines?: Array<string> | undefined, range: TimeRangeSelectorTime, cursor?: Cursor | undefined, page_size?: PageSize | undefined};

export type CreateApiApiV2MachineMetricsArgs = {body: MachineMetricsRequest};

export type CreateApiApiV2MachineMetricsOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const timestamp = z.number().int().gte(0);

export const machineMetricSystem = z.object({timestamp: timestamp, machine: z.string(), exporter_version: z.string().optional(), cpu_cores: z.number().int().optional(), cpu_threads: z.number().int().optional(), cpu_node_system_seconds_total: z.number().int().optional(), cpu_node_user_seconds_total: z.number().int().optional(), cpu_node_iowait_seconds_total: z.number().int().optional(), cpu_node_idle_seconds_total: z.number().int().optional(), memory_node_bytes_total: z.number().int().optional(), memory_node_bytes_free: z.number().int().optional(), memory_node_bytes_cached: z.number().int().optional(), memory_node_bytes_buffers: z.number().int().optional(), disk_node_bytes_total: z.number().int().optional(), disk_node_bytes_free: z.number().int().optional(), disk_node_io_seconds: z.number().int().optional(), disk_node_reads_total: z.number().int().optional(), disk_node_writes_total: z.number().int().optional(), network_node_bytes_total_receive: z.number().int().optional(), network_node_bytes_total_transmit: z.number().int().optional(), misc_node_boot_ts_seconds: z.number().int().optional(), misc_os: z.string().optional()});

export const machineMetricValidator = z.object({timestamp: timestamp, machine: z.string(), exporter_version: z.string().optional(), cpu_process_seconds_total: z.number().int().optional(), memory_process_bytes: z.number().int().optional(), client_name: z.string().optional(), client_version: z.string().optional(), client_build: z.number().int().optional(), sync_eth2_fallback_configured: z.boolean().optional(), sync_eth2_fallback_connected: z.boolean().optional(), validator_total: z.number().int().optional(), validator_active: z.number().int().optional()});

export const machineMetricNode = z.object({timestamp: timestamp, machine: z.string(), exporter_version: z.string().optional(), cpu_process_seconds_total: z.number().int().optional(), memory_process_bytes: z.number().int().optional(), client_name: z.string().optional(), client_version: z.string().optional(), client_build: z.number().int().optional(), sync_eth2_fallback_configured: z.boolean().optional(), sync_eth2_fallback_connected: z.boolean().optional(), disk_beaconchain_bytes_total: z.number().int().optional(), network_libp2p_bytes_total_receive: z.number().int().optional(), network_libp2p_bytes_total_transmit: z.number().int().optional(), network_peers_connected: z.number().int().optional(), sync_eth1_connected: z.boolean().optional(), sync_eth2_synced: z.boolean().optional(), sync_beacon_head_slot: z.number().int().optional(), sync_eth1_fallback_configured: z.boolean().optional(), sync_eth1_fallback_connected: z.boolean().optional()});

export const machineMetricsData = z.object({system_metrics: z.array(machineMetricSystem), validator_metrics: z.array(machineMetricValidator), node_metrics: z.array(machineMetricNode)});

export const paging = z.object({next_cursor: z.string().optional()});

export const machineMetricsContainer = z.object({data: machineMetricsData, paging: paging.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
};

/**
 * Machine Metrics
 * 
 * POST /api/v2/machine-metrics
 */
export const createApiApiV2MachineMetrics = async (args: CreateApiApiV2MachineMetricsArgs, options?: CreateApiApiV2MachineMetricsOptions) => {
const {baseUrl = "https://beaconcha.in", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/machine-metrics${query.size > 0 ? `?${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(machineMetricsContainer, await res.json())
};