import {z} from 'zod'

export type GetApiIpPrivacyExtendedArgs = {ip: string};

export type GetApiIpPrivacyExtendedOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const privacyExtendedResponse = z.object({vpn: z.boolean(), proxy: z.boolean(), tor: z.boolean(), relay: z.boolean(), hosting: z.boolean(), service: z.string(), confidence: z.number().int().gte(1).lte(3).optional(), coverage: z.number().gte(0).lte(1).optional(), census: z.boolean().optional(), census_ports: z.array(z.number().int()).optional(), device_activity: z.boolean().optional(), inferred: z.boolean().optional(), vpn_config: z.boolean().optional(), whois: z.boolean().optional(), first_seen: z.string().optional(), last_seen: z.string().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
};

/**
 * Returns extended privacy detection information with detailed methodologies.
 * 
 * GET /{ip}/privacy_extended
 * 
 * Also accepts auth: BearerAuth, ApiKeyAuth
 */
export const getApiIpPrivacyExtended = async (args: GetApiIpPrivacyExtendedArgs, options?: GetApiIpPrivacyExtendedOptions) => {
const {baseUrl = "https://ipinfo.io", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.ip))}/privacy_extended${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(privacyExtendedResponse, await res.json())
};