import {z} from 'zod'

export type PiiEntityType = 'CREDIT_CARD' | 'CRYPTO' | 'DATE_TIME' | 'EMAIL_ADDRESS' | 'IBAN_CODE' | 'IP_ADDRESS' | 'NRP' | 'LOCATION' | 'PERSON' | 'PHONE_NUMBER' | 'MEDICAL_LICENSE' | 'URL' | 'MAC_ADDRESS' | 'UUID' | 'US_BANK_NUMBER' | 'US_DRIVER_LICENSE' | 'US_ITIN' | 'US_PASSPORT' | 'US_SSN' | 'US_MBI' | 'US_NPI' | 'UK_NHS' | 'UK_NINO' | 'UK_PASSPORT' | 'UK_POSTCODE' | 'UK_VEHICLE_REGISTRATION' | 'UK_DRIVING_LICENCE' | 'ES_NIF' | 'ES_NIE' | 'ES_PASSPORT' | 'IT_FISCAL_CODE' | 'IT_DRIVER_LICENSE' | 'IT_VAT_CODE' | 'IT_PASSPORT' | 'IT_IDENTITY_CARD' | 'PL_PESEL' | 'SG_NRIC_FIN' | 'SG_UEN' | 'AU_ABN' | 'AU_ACN' | 'AU_TFN' | 'AU_MEDICARE' | 'IN_PAN' | 'IN_AADHAAR' | 'IN_VEHICLE_REGISTRATION' | 'IN_VOTER' | 'IN_PASSPORT' | 'IN_GSTIN' | 'FI_PERSONAL_IDENTITY_CODE' | 'DE_TAX_ID' | 'DE_TAX_NUMBER' | 'DE_VAT_ID' | 'DE_PASSPORT' | 'DE_ID_CARD' | 'DE_FUEHRERSCHEIN' | 'DE_SOCIAL_SECURITY' | 'DE_HEALTH_INSURANCE' | 'DE_LANR' | 'DE_BSNR' | 'DE_KFZ' | 'DE_HANDELSREGISTER' | 'DE_PLZ' | 'KR_RRN' | 'KR_FRN' | 'KR_PASSPORT' | 'KR_DRIVER_LICENSE' | 'KR_BRN' | 'CA_SIN' | 'SE_PERSONNUMMER' | 'SE_ORGANISATIONSNUMMER' | 'TH_TNIN' | 'TR_NATIONAL_ID' | 'TR_LICENSE_PLATE' | 'NG_NIN' | 'NG_VEHICLE_REGISTRATION' | 'PH_TIN' | 'PH_UMID' | 'PH_PASSPORT' | 'ZA_ID_NUMBER';

export type ApplyGuardrailRequest = {entities?: (Array<PiiEntityType> | null) | undefined, guardrail_name: string, input_type?: string | undefined, language?: (string | null) | undefined, messages?: (Array<{[key: string]: unknown}> | null) | undefined, metadata?: ({[key: string]: unknown} | null) | undefined, text: string};

export type CreateApiGuardrailsApplyGuardrailArgs = {body: ApplyGuardrailRequest};

export type CreateApiGuardrailsApplyGuardrailOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const applyGuardrailResponse = z.object({response_text: z.string()});

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
};

/**
 * Apply Guardrail
 * 
 * POST /guardrails/apply_guardrail
 */
export const createApiGuardrailsApplyGuardrail = async (args: CreateApiGuardrailsApplyGuardrailArgs, options: CreateApiGuardrailsApplyGuardrailOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (APIKeyHeader !== undefined) headers.set("x-litellm-api-key", APIKeyHeader)

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