import {z} from 'zod'

export type GetApiApiV0KnowledgeBasesKbIdGraphNodesArgs = {kb_id: string, tier?: ('representation' | 'domain' | null) | undefined, type_id?: (string | null) | undefined};

export type GetApiApiV0KnowledgeBasesKbIdGraphNodesOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const nodeSelector = z.record(z.string(), z.unknown());

export const nodeResponse = z.object({id: z.string(), knowledge_base_id: z.string(), tier: z.enum(["representation", "domain"]), type_id: z.string(), name: z.string(), attributes: z.record(z.string(), z.unknown()), derived: z.record(z.string(), z.unknown()).optional(), selector: nodeSelector.nullable().optional(), reads_fields: z.boolean().optional(), confidence: z.number().nullable().optional(), source: z.string(), created_at: z.string(), updated_at: z.string()});

export const getApiApiV0KnowledgeBasesKbIdGraphNodesResponse = z.array(nodeResponse);

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
};

/**
 * List nodes in a KG
 * 
 * GET /api/v0/knowledge-bases/{kb_id}/graph/nodes
 */
export const getApiApiV0KnowledgeBasesKbIdGraphNodes = async (args: GetApiApiV0KnowledgeBasesKbIdGraphNodesArgs, options: GetApiApiV0KnowledgeBasesKbIdGraphNodesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.tier != null) query.append("tier", String(args.tier))
if (args.type_id != null) query.append("type_id", String(args.type_id))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v0/knowledge-bases/${encodeURIComponent(String(args.kb_id))}/graph/nodes${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(getApiApiV0KnowledgeBasesKbIdGraphNodesResponse, await res.json())
};