server/utils/content_types.ts

import type { ContentFormat } from "~types/lysand/Object";

export const getBestContentType = (contents: ContentFormat[]) => {
    // Find the best content and content type
    if (contents.find((c) => c.content_type === "text/x.misskeymarkdown")) {
        return (
            contents.find((c) => c.content_type === "text/x.misskeymarkdown") ||
            null
        );
    }
    if (contents.find((c) => c.content_type === "text/html")) {
        return contents.find((c) => c.content_type === "text/html") || null;
    }
    if (contents.find((c) => c.content_type === "text/markdown")) {
        return contents.find((c) => c.content_type === "text/markdown") || null;
    }
    if (contents.find((c) => c.content_type === "text/plain")) {
        return contents.find((c) => c.content_type === "text/plain") || null;
    }
    return contents[0] || null;
};