typebox-schema-faker/dist/context.js

Generate fake data from TypeBox schemas for testing, prototyping and development.

import { Faker, en } from '@faker-js/faker';
import RandExp from 'randexp';
/**
 * Creates a new faker context for tracking schema references and recursion depth
 */
export function createContext(options = {}) {
    const seed = options.seed || Math.random() * Math.pow(2, 32) + Date.now();
    return {
        refs: new Map(),
        currentDepth: 0,
        faker: new Faker({ locale: [en], seed: seed }),
        randexp(pattern, flags) {
            const instance = new RandExp(pattern, flags);
            let currentSeed = seed;
            instance.randInt = (a, b) => {
                currentSeed = Math.pow(currentSeed, 2) % 94906249;
                return (currentSeed % (1 + b - a)) + a;
            };
            return instance.gen();
        },
    };
}