import {z} from 'zod'

export type SamplingParams = {max_tokens?: (number | null) | undefined, seed?: (number | null) | undefined, stop?: (string | Array<string> | Array<number> | null) | undefined, temperature?: number | undefined, top_k?: number | undefined, top_p?: number | undefined};

export type SampleBody = {checkpoint: string, num_samples?: number | undefined, prompt_logprobs?: boolean | undefined, prompt_tokens: Array<number>, sampling_params?: SamplingParams | undefined, topk_prompt_logprobs?: number | undefined, topk_sample_logprobs?: number | undefined};

export type CreateApiV1TrainingJobsJobIdSampleArgs = {job_id: string, 'Idempotency-Key'?: (string | null) | undefined, body: SampleBody};

export type CreateApiV1TrainingJobsJobIdSampleOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const futureAccepted = z.object({future_id: z.string(), job_id: z.string(), type: z.string()});

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
};

/**
 * Sample from an interactive training job
 * 
 * POST /v1/training/jobs/{job_id}/sample
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiV1TrainingJobsJobIdSample = async (args: CreateApiV1TrainingJobsJobIdSampleArgs, options?: CreateApiV1TrainingJobsJobIdSampleOptions) => {
const {baseUrl = "https://api.fastino.ai", 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 (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/training/jobs/${encodeURIComponent(String(args.job_id))}/sample${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(futureAccepted, await res.json())
};