markdown.ts
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markdown.ts
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	import { Parser, HtmlRenderer } from "commonmark";

	import { Field, type Context, type ValidationResult } from "../../../main.js";
	import { OpenApiTypes } from "../../../schemas/open-api-types.js";

	const parser = new Parser();
	const renderer = new HtmlRenderer();

	export default class Markdown extends Field<string> {
	typeName = "markdown";

	open_api_type: OpenApiTypes = OpenApiTypes.STR;

	constructor() {
	super();
	}

	// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
	async decode(
	_: Context,
	db_value: string \| null,
	__: unknown,
	format?: "markdown" \| "html"
	) {
	if (db_value === null) {
	return null;
	}
	if (format === "html") {
	const parsed = parser.parse(db_value);
	return renderer.render(parsed);
	}
	if (format === "markdown") {
	return db_value;
	}

	return db_value;
	}

	protected isProperValue(): Promise<ValidationResult> {
	return Promise.resolve(Field.valid());
	}
	}