import { Context } from "@oak/oak";
import { lookupPubkeyByUsername } from "../directory.ts";
import { fetchProfileEvent, fetchReplaceableEvent } from "../nostr.ts";
import Article from "../models/article.ts";
import Profile from "../models/profile.ts";
import { articleHtml } from "../html.ts";
import notFoundHandler from "../handlers/not-found.ts";
import { generateOgProfileImage } from "../magick.ts";

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

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

  try {
    const articleEvent = await fetchReplaceableEvent(
      pubkey,
      identifier,
    );
    const profileEvent = await fetchProfileEvent(pubkey);

    if (articleEvent && profileEvent) {
      const article = new Article(articleEvent);
      const profile = new Profile(profileEvent, username);
      const html = articleHtml(article, profile);
      generateOgProfileImage(profile);

      ctx.response.body = html;
    } else {
      notFoundHandler(ctx);
    }
  } catch (_e) {
    notFoundHandler(ctx);
  }
};

export default userEventHandler;