metadata.ts
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metadata.ts
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	import type { App } from "../main.js";

	export const METADATA_COLLECTION_NAME = "_metadata";

	export default class Metadata {
	db_collection_name = METADATA_COLLECTION_NAME;
	app: App;
	constructor(app: App) {
	this.app = app;
	}

	async get(key: string \| number) {
	const matches = await this.app.Datastore.find(
	METADATA_COLLECTION_NAME,
	{ key }
	);
	if (matches.length) {
	return matches[0].value;
	} else {
	return undefined;
	}
	}

	async set(key: string, value: string \| number) {
	const matches = await this.app.Datastore.find(
	METADATA_COLLECTION_NAME,
	{ key }
	);
	if (matches.length) {
	await this.app.Datastore.update(
	METADATA_COLLECTION_NAME,
	{ key: key },
	{ $set: { value: value } }
	);
	} else {
	await this.app.Datastore.insert(METADATA_COLLECTION_NAME, {
	key,
	value,
	});
	}
	}

	async clear() {
	return this.app.Datastore.remove(METADATA_COLLECTION_NAME, {}, false);
	}
	}