src/services/register-instance.ts


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import Instance, { IInstance } from '../models/instance';
import federationChart from '../chart/federation';

export default async function(host: string): Promise<IInstance> {
	if (host == null) return null;

	const index = await Instance.findOne({ host });

	if (index == null) {
		const i = await Instance.insert({
			host,
			caughtAt: new Date(),
			system: null // TODO
		});

		federationChart.update(true);

		return i;
	} else {
		return index;
	}
}