import {z} from 'zod'

export type GetApiV1RetrieversEvaluationsDatasetsDatasetIdentifierArgs = {dataset_identifier: string};

export type GetApiV1RetrieversEvaluationsDatasetsDatasetIdentifierOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, NamespaceHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const groundTruthQuery = z.object({query_id: z.string(), query_input: z.record(z.string(), z.unknown()), relevant_documents: z.array(z.string()), relevance_scores: z.record(z.string(), z.number().int()).nullable().optional()});

export const evaluationDataset = z.object({dataset_id: z.string(), dataset_name: z.string(), description: z.string().nullable().optional(), queries: z.array(groundTruthQuery), created_at: z.string(), updated_at: z.string(), namespace_id: z.string(), internal_id: z.string(), query_count: z.number().int(), metadata: z.record(z.string(), z.unknown()).nullable().optional(), relevance_field: 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 evaluation dataset
 * 
 * GET /v1/retrievers/evaluations/datasets/{dataset_identifier}
 */
export const getApiV1RetrieversEvaluationsDatasetsDatasetIdentifier = async (args: GetApiV1RetrieversEvaluationsDatasetsDatasetIdentifierArgs, options?: GetApiV1RetrieversEvaluationsDatasetsDatasetIdentifierOptions) => {
const {baseUrl = "https://api.mixpeek.com", fetch: fetchFn = fetch, BearerAuth, NamespaceHeader} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)
if (NamespaceHeader !== undefined) headers.set("X-Namespace", NamespaceHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/retrievers/evaluations/datasets/${encodeURIComponent(String(args.dataset_identifier))}${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(evaluationDataset, await res.json())
};