import {z} from 'zod'

export type GetApiApiV1CvmsCvmIdStatsArgs = {cvm_id: string};

export type GetApiApiV1CvmsCvmIdStatsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const diskInfo = z.object({name: z.string(), mount_point: z.string(), total_size: z.number().int(), free_size: z.number().int()});

export const systemInfo = z.object({os_name: z.string(), os_version: z.string(), kernel_version: z.string(), cpu_model: z.string(), num_cpus: z.number().int(), total_memory: z.number().int(), available_memory: z.number().int(), used_memory: z.number().int(), free_memory: z.number().int(), total_swap: z.number().int(), used_swap: z.number().int(), free_swap: z.number().int(), uptime: z.number().int(), loadavg_one: z.number().int(), loadavg_five: z.number().int(), loadavg_fifteen: z.number().int(), disks: z.array(diskInfo)});

export const cvmSystemInfo = z.object({is_online: z.boolean(), is_public: z.boolean().optional(), error: z.string().nullable().optional(), sysinfo: systemInfo.nullable().optional(), status: z.string().nullable().optional(), in_progress: z.boolean().optional(), boot_progress: z.string().nullable().optional(), boot_error: z.string().nullable().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
};

/**
 * Get CVM system stats
 * 
 * GET /api/v1/cvms/{cvm_id}/stats
 */
export const getApiApiV1CvmsCvmIdStats = async (args: GetApiApiV1CvmsCvmIdStatsArgs, options?: GetApiApiV1CvmsCvmIdStatsOptions) => {
const {baseUrl = "https://cloud-api.phala.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/cvms/${encodeURIComponent(String(args.cvm_id))}/stats${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(cvmSystemInfo, await res.json())
};