pezkuwi-common/packages/x-randomvalues/react-native.js

import { NativeModules } from 'react-native';
import { base64Decode } from '@pezkuwi/wasm-util/base64';
import { xglobal } from '@pezkuwi/x-global';
import { crypto as cryptoBrowser, getRandomValues as getRandomValuesBrowser } from './browser.js';
export { packageInfo } from './packageInfo.js';
/**
 * @internal
 *
 * A getRandomValues util that detects and uses the available RN
 * random utiliy generation functions.
 **/
function getRandomValuesRn(output) {
    if (!NativeModules['ExpoRandom'] && !NativeModules.RNGetRandomValues) {
        throw new Error('No secure random number generator available. This environment does not support crypto.getRandomValues and no React Native secure RNG module is available.');
    }
    return base64Decode(NativeModules.RNGetRandomValues
        ? NativeModules.RNGetRandomValues.getRandomBase64(output.length)
        : NativeModules.ExpoRandom.getRandomBase64String(output.length), output);
}
const hasNativeRNModules = !!NativeModules['ExpoRandom'] || !!NativeModules.RNGetRandomValues;
const hasNativeCrypto = typeof xglobal.crypto === 'object' && typeof xglobal.crypto.getRandomValues === 'function';
export const getRandomValues = (hasNativeRNModules
    ? getRandomValuesRn
    : hasNativeCrypto
        ? getRandomValuesBrowser
        : () => {
            throw new Error('No secure random number generator available. This environment does not support crypto.getRandomValues.');
        });
export const crypto = (getRandomValues === getRandomValuesBrowser
    ? cryptoBrowser
    : { getRandomValues });