import {z} from 'zod'

export type GetApi0WorkerPingOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const workerPingFactoryInfo = z.object({id: z.string(), name: z.string(), private: z.string().nullable().optional()});

export const factoryAddresses = z.object({cidr: z.string(), count: z.number().int().gte(0), first: z.string(), gateway: z.string().nullable().optional(), name: z.string(), routed: z.boolean()});

export const factoryMetadata = z.object({addresses: z.array(factoryAddresses).optional(), dump_to_rpool: z.number().int().gte(0).nullable().optional(), post_job_diagnostic_script: z.string().nullable().optional(), pre_job_diagnostic_script: z.string().nullable().optional(), root_authorized_keys: z.string().nullable().optional(), root_password_hash: z.string().nullable().optional(), rpool_disable_sync: z.boolean().nullable().optional(), v: z.literal("1")});

export const workerPingInput = z.object({id: z.string(), name: z.string()});

export const workerPingOutputRule = z.object({ignore: z.boolean(), require_match: z.boolean(), rule: z.string(), size_change_ok: z.boolean()});

export const workerPingTask = z.object({env: z.record(z.string(), z.string()), env_clear: z.boolean(), gid: z.number().int().gte(0), id: z.number().int().gte(0), name: z.string(), script: z.string(), uid: z.number().int().gte(0), workdir: z.string()});

export const workerPingJob = z.object({id: z.string(), inputs: z.array(workerPingInput), name: z.string(), output_rules: z.array(workerPingOutputRule), tasks: z.array(workerPingTask)});

export const workerPingResult = z.object({factory_info: workerPingFactoryInfo.nullable().optional(), factory_metadata: factoryMetadata.nullable().optional(), job: workerPingJob.nullable().optional(), poweroff: z.boolean()});

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 /0/worker/ping
 */
export const getApi0WorkerPing = async (options: GetApi0WorkerPingOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/0/worker/ping${query.size > 0 ? `?${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(workerPingResult, await res.json())
};