import {z} from 'zod'

export type CreateApiProjectsProjectIdEvalRunsRunIdJudgeBacktestArgs = {'x-mcpjam-eval-vocabulary'?: ('1' | '2') | undefined, projectId: string, runId: string, body: {rubric: {instructions?: string | undefined, criteria?: (Array<{id: string, label: string, description?: string | undefined, required?: boolean | undefined}>) | undefined} | null, continuation?: {cursor: number, sourceHash: string, reservationId: string} | undefined}};

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

export const createApiProjectsProjectIdEvalRunsRunIdJudgeBacktestResponse = z.object({ok: z.boolean().optional(), cases: z.array(z.object({})).optional(), cursor: z.number().int().optional(), sourceHash: z.string().optional(), reservationId: z.string().optional(), isDone: z.boolean().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
};

/**
 * Preview draft judge grading on one recorded iteration
 * 
 * POST /projects/{projectId}/eval-runs/{runId}/judge/backtest
 */
export const createApiProjectsProjectIdEvalRunsRunIdJudgeBacktest = async (args: CreateApiProjectsProjectIdEvalRunsRunIdJudgeBacktestArgs, options?: CreateApiProjectsProjectIdEvalRunsRunIdJudgeBacktestOptions) => {
const {baseUrl = "https://app.mcpjam.com/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args['x-mcpjam-eval-vocabulary'] != null) headers.set("x-mcpjam-eval-vocabulary", String(args['x-mcpjam-eval-vocabulary']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/projects/${encodeURIComponent(String(args.projectId))}/eval-runs/${encodeURIComponent(String(args.runId))}/judge/backtest${query.size > 0 ? `?${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(createApiProjectsProjectIdEvalRunsRunIdJudgeBacktestResponse, await res.json())
};