mirror-chhoto-url/src/main/java/tk/draganczuk/url/Routes.java

package tk.draganczuk.url;

import spark.Request;
import spark.Response;

import java.io.IOException;

public class Routes {

	private static UrlFile urlFile;

	static {
		try {
			urlFile = new UrlFile();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public static String getAll(Request req, Response res) throws IOException {
		return String.join("\n", urlFile.getAll());
	}

	public static String addUrl(Request req, Response res) {
		String longUrl = req.queryParams("long");
		String shortUrl = req.queryParams("short");

		if (shortUrl == null || shortUrl.isBlank()) {
			shortUrl = Utils.randomString();
		}

		return urlFile.addUrl(longUrl, shortUrl);
	}

	public static String goToLongUrl(Request req, Response res){
		String shortUrl = req.params("shortUrl");
		var longUrlOpt = urlFile
			.findForShortUrl(shortUrl);

		if(longUrlOpt.isEmpty()){
			res.status(404);
			return "";
		}

		res.redirect(longUrlOpt.get());

		return "";
	}

}