import { Context } from "@oak/oak";
import { log } from "../log.ts";
import { lookupPubkeyByUsername } from "../directory.ts";
import { fetchArticlesByAuthor, fetchProfileEvent } from "../nostr.ts";
import { profileAtomFeed } from "../feeds.ts";
import Article from "../models/article.ts";
import Profile from "../models/profile.ts";
import notFoundHandler from "../handlers/not-found.ts";

const userAtomFeedHandler = async function (ctx: Context) {
  const username = ctx.params.user.replace(/^(@|~)/, "");
  const pubkey = await lookupPubkeyByUsername(username);

  if (!pubkey) {
    notFoundHandler(ctx);
    return;
  }

  try {
    const profileEvent = await fetchProfileEvent(pubkey);
    const profile = new Profile(profileEvent, username);

    if (profileEvent && profile.nip05) {
      const articleEvents = await fetchArticlesByAuthor(pubkey);
      const articles = articleEvents.map((a) => new Article(a));
      const atom = profileAtomFeed(profile, articles);

      ctx.response.headers.set("Content-Type", "application/atom+xml");
      ctx.response.body = atom;
    } else {
      ctx.response.status = 404;
      ctx.response.body = "Not Found";
    }
  } catch (e) {
    log(e, "yellow");
    notFoundHandler(ctx);
  }
};

export default userAtomFeedHandler;