startup.js

const shortid = require("shortid");
const constants = require("./constants");
const models = require("./db/models");
const redis = require("./redis");

module.exports = async function () {
	await redis.clearPermissionCache();

	for (let groupName in constants.defaultGroups) {
		let groupInfo = constants.defaultGroups[groupName];
		let group = await models.Group.findOne({ name: new RegExp(`^${groupName}$`, "i") })
			.select("_id");
		let permissions = [];

		if (Array.isArray(groupInfo.perms))
			permissions = groupInfo.perms;
		else if (groupInfo.perms == "*")
			permissions = Object.keys(constants.allPerms);

		if (!group) {
			group = new models.Group({
				id: shortid.generate(),
				name: groupName,
				rank: groupInfo.rank,
				permissions: permissions,
				visible: groupInfo.visible
			});
			await group.save();
		}
		else
			await models.Group.updateOne(
				{ _id: group._id },
				{ $addToSet: { permissions: { $each: permissions } } }
			).exec();
	}
};