import {z} from 'zod'

export type GetApiV1PublicEvaluationsRunningOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const evaluationRunStatus = z.enum(["CLAIMED", "RUNNING", "SUCCESS", "FAILED", "TIMED_OUT", "STALE", "CANCELLED"]);

export const runningEvaluation = z.object({eval_run_id: z.string(), agent_version_id: z.string(), agent_name: z.string(), version_number: z.number().int(), miner_hotkey: z.string(), validator_hotkey: z.string(), status: evaluationRunStatus, started_at: z.string(), progress_percent: z.number().optional(), phase: z.string().nullable().optional(), race_id: z.string().nullable().optional()});

export const getApiV1PublicEvaluationsRunningResponse = z.array(runningEvaluation);

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 running evaluations
 * 
 * GET /v1/public/evaluations/running
 */
export const getApiV1PublicEvaluationsRunning = async (options: GetApiV1PublicEvaluationsRunningOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/public/evaluations/running${query.size > 0 ? `?${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(getApiV1PublicEvaluationsRunningResponse, await res.json())
};