import {z} from 'zod'

export type KBWebPage = {_id?: string | undefined, src?: string | undefined, title?: string | undefined, scrapping_status?: boolean | undefined};

export type KBSource = {_id?: string | undefined, type: 'web-site' | 'document' | 'plain-text', data: string, name?: string | undefined, metadata?: string | undefined, url?: string | undefined, pages?: Array<KBWebPage> | undefined};

export type KnowledgeBaseAddSourcesRequest = {sources: Array<KBSource>};

export type CreateApiAssistantKnowledgesKnowledgeIdAddSourcesArgs = {knowledge_id: string, body: KnowledgeBaseAddSourcesRequest};

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

export const knowledgeBaseSourcesResponse = z.object({message: z.string().optional(), need_training: 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
};

/**
 * Add/Update sources
 * 
 * POST /assistant_knowledges/{knowledge_id}/add/sources
 */
export const createApiAssistantKnowledgesKnowledgeIdAddSources = async (args: CreateApiAssistantKnowledgesKnowledgeIdAddSourcesArgs, options?: CreateApiAssistantKnowledgesKnowledgeIdAddSourcesOptions) => {
const {baseUrl = "https://apis.smartly.ai", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/assistant_knowledges/${encodeURIComponent(String(args.knowledge_id))}/add/sources${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(knowledgeBaseSourcesResponse, await res.json())
};