import {z} from 'zod'

export type DocumentRef = {collection_id: string, document_id: string};

export type ClusterRunSource = {cluster_id: string, run_id: string};

export type CreateTaxonomyFromDocumentsRequest = {node_label?: (string | null) | undefined, documents?: (Array<DocumentRef> | null) | undefined, node_fields?: ({[key: string]: unknown} | null) | undefined, vector_name?: (string | null) | undefined, provenance?: ({[key: string]: unknown} | null) | undefined, cluster_run?: (ClusterRunSource | null) | undefined, taxonomy_name: string, description?: (string | null) | undefined, enrichment_target_field?: (string | null) | undefined};

export type CreateApiV1TaxonomiesFromDocumentsArgs = {body: CreateTaxonomyFromDocumentsRequest};

export type CreateApiV1TaxonomiesFromDocumentsOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, NamespaceHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const skippedDocumentRef = z.object({collection_id: z.string().nullable().optional(), document_id: z.string().nullable().optional(), reason: z.string()});

export const promotedNode = z.object({node_document_id: z.string(), node_label: z.string(), cluster_id: z.string(), member_count: z.number().int().nullable().optional()});

export const taxonomyNodeFromDocumentsResponse = z.object({taxonomy_id: z.string(), taxonomy_name: z.string(), node_document_id: z.string(), node_collection_id: z.string(), node_label: z.string(), vector_name: z.string(), vector_dimensions: z.number().int(), documents_used: z.number().int(), documents_skipped: z.array(skippedDocumentRef).optional(), taxonomy_created: z.boolean().optional(), retriever_id: z.string().nullable().optional(), enrichment_hint: z.string(), nodes: z.array(promotedNode).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
};

/**
 * Create a taxonomy from a document selection or a cluster run (one gesture)
 * 
 * POST /v1/taxonomies/from-documents
 */
export const createApiV1TaxonomiesFromDocuments = async (args: CreateApiV1TaxonomiesFromDocumentsArgs, options?: CreateApiV1TaxonomiesFromDocumentsOptions) => {
const {baseUrl = "https://api.mixpeek.com", fetch: fetchFn = fetch, BearerAuth, NamespaceHeader} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
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/taxonomies/from-documents${query.size > 0 ? `?${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(taxonomyNodeFromDocumentsResponse, await res.json())
};