el.xwx.moe/lib/client/generateLinkHref.ts

import { AccountSettings, ArchivedFormat, LinkIncludingShortenedCollectionAndTags } from "@/types/global";
import { LinksRouteTo } from "@prisma/client";
import { pdfAvailable, readabilityAvailable, screenshotAvailable } from "../shared/getArchiveValidity";

export const generateLinkHref = (link: LinkIncludingShortenedCollectionAndTags, account: AccountSettings): string => {

	// Return the links href based on the account's preference
	// If the user's preference is not available, return the original link
	switch (account.linksRouteTo) {
		case LinksRouteTo.ORIGINAL:
			return link.url || '';
		case LinksRouteTo.PDF:
			if (!pdfAvailable(link)) return link.url || '';

			return `/preserved/${link?.id}?format=${ArchivedFormat.pdf}`;
		case LinksRouteTo.READABLE:
			if (!readabilityAvailable(link)) return link.url || '';

			return `/preserved/${link?.id}?format=${ArchivedFormat.readability}`;
		case LinksRouteTo.SCREENSHOT:
			if (!screenshotAvailable(link)) return link.url || '';

			return `/preserved/${link?.id}?format=${link?.image?.endsWith("png") ? ArchivedFormat.png : ArchivedFormat.jpeg}`;
		default:
			return link.url || '';
	}
};