const chance = new require('chance')();
const _ = require('lodash');
const { ObjectId } = require('mongoose').Types;

const typeRands = {
	String: () => chance.string(),
	Number: () => chance.floating(),
	Date: () => 'ISODate("' + chance.date().toISOString() + '")',
	Boolean: () => chance.bool(),
	ObjectId: () => 'ObjectId("' + new ObjectId().toString() + '")',
};

const randVal = (v, k) => {
	try {
		return (typeRands[v.name] || typeRands[v.type.name])();
	} catch (e) {
	}
};

const formatObjectId = val => val.replace(/\"ObjectId\(\\"(.*?)\\"\)"/g, 'ObjectId("$1")');
const formatISODate = val => val.replace(/\"ISODate\(\\"(.*?)\\"\)"/g, 'ISODate("$1")');
const random = raw => _.chain(raw).mapValues(randVal).pickBy(_.identity).thru(JSON.stringify)
	.thru(formatObjectId)
	.thru(formatISODate).value();

module.exports = { random };