import {z} from 'zod'

export type GetApiKnowledgeBaseResourcesIdArgs = {id: string};

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

export const knowledgeBaseResourceActorAssignment = z.object({type: z.enum(["User", "Team"]), id: z.string(), displayName: z.string().nullable()});

export const knowledgeBaseExpirationStatus = z.enum(["CURRENT", "EXPIRED"]);

export const tagInput = z.object({categoryId: z.string(), tagId: z.string()});

export const knowledgeBaseDocumentResourceOutput = z.object({id: z.string(), type: z.literal("FILE"), title: z.string(), description: z.string().nullable(), fileUrl: z.string(), customerVisibility: z.enum(["PRIVATE", "SHAREABLE", "REQUEST_ACCESS", "PUBLIC", "null"]).nullable(), downloadPermission: z.enum(["VIEW_ONLY", "VIEW_AND_DOWNLOAD", "null"]).nullable(), isUsedInQuestionnaires: z.boolean().nullable(), ownerAssignment: knowledgeBaseResourceActorAssignment.nullable(), expirationStatus: knowledgeBaseExpirationStatus, expirationDate: z.string().nullable(), lastUpdated: z.string(), lastVerified: z.string().nullable(), tags: z.array(tagInput), categoryId: z.string().nullable()});

export const knowledgeBaseWebpageResourceOutput = z.object({id: z.string(), type: z.literal("URL"), title: z.string(), description: z.string().nullable(), url: z.string(), customerVisibility: z.enum(["PRIVATE", "SHAREABLE", "REQUEST_ACCESS", "PUBLIC", "null"]).nullable(), includeSubPages: z.boolean().nullable(), isUsedInQuestionnaires: z.boolean().nullable(), ownerAssignment: knowledgeBaseResourceActorAssignment.nullable(), expirationStatus: knowledgeBaseExpirationStatus, expirationDate: z.string().nullable(), lastUpdated: z.string(), lastVerified: z.string().nullable(), tags: z.array(tagInput), categoryId: z.string().nullable()});

export const trustKnowledgeBaseResourceOutput = z.union([knowledgeBaseDocumentResourceOutput, knowledgeBaseWebpageResourceOutput]);

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 Knowledge Base resource
 * 
 * GET /knowledge-base/resources/{id}
 */
export const getApiKnowledgeBaseResourcesId = async (args: GetApiKnowledgeBaseResourcesIdArgs, options?: GetApiKnowledgeBaseResourcesIdOptions) => {
const {baseUrl = "https://api.vanta.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/knowledge-base/resources/${encodeURIComponent(String(args.id))}${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(trustKnowledgeBaseResourceOutput, await res.json())
};