import {z} from 'zod'

export type GetApiBundleArgs = {uuid?: string | undefined, author?: string | undefined, vuln_id?: string | undefined, meta?: string | undefined, per_page?: number | undefined, 'X-Fields'?: unknown | undefined};

export type GetApiBundleOptions = {baseUrl: string, apikey?: string | undefined, fetch?: typeof fetch | undefined};

export const metadata = z.object({count: z.number().int().optional(), offset: z.number().int().optional(), limit: z.number().int().optional()});

export const user = z.object({login: z.string().optional(), name: z.string().optional(), uuid: z.string().optional()});

export const bundle = z.object({uuid: z.string().optional(), vulnerability_lookup_origin: z.string().optional(), name: z.string().optional(), description: z.string().optional(), creation_timestamp: z.string().optional(), timestamp: z.string().optional(), related_vulnerabilities: z.array(z.string()).optional(), meta: z.object({}).optional(), author: user.optional()});

export const bundlesList = z.object({metadata: metadata.optional(), data: z.array(bundle).optional()});

export const getApiBundleResponse = z.array(bundlesList);

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 all bundles
 * 
 * GET /bundle/
 */
export const getApiBundle = async (args: GetApiBundleArgs, options: GetApiBundleOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apikey} = options ?? {}

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

if (args.uuid != null) query.append("uuid", String(args.uuid))
if (args.author != null) query.append("author", String(args.author))
if (args.vuln_id != null) query.append("vuln_id", String(args.vuln_id))
if (args.meta != null) query.append("meta", String(args.meta))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args['X-Fields'] != null) headers.set("X-Fields", String(args['X-Fields']))
if (apikey !== undefined) headers.set("X-API-KEY", apikey)

const url = `${baseUrl.replace(/\/+$/, '')}/bundle/${query.size > 0 ? `?${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(getApiBundleResponse, await res.json())
};