import { NDKEvent, NDKKind } from '@nostr-dev-kit/ndk';
import { useQuery } from '@tanstack/react-query';
import { nip19 } from 'nostr-tools';
import { useCallback } from 'react';
import { Link } from 'react-router-dom';

import { useNDK } from '@libs/ndk/provider';

import {
  ArticleNote,
  FileNote,
  LinkPreview,
  NoteActions,
  NoteSkeleton,
  RepostUser,
  TextNote,
  UnknownNote,
} from '@shared/notes';
import { User } from '@shared/user';

export function Repost({ event }: { event: NDKEvent }) {
  const embedEvent: null | NDKEvent =
    event.content.length > 0 ? JSON.parse(event.content) : null;

  const { ndk } = useNDK();
  const { status, data } = useQuery(
    ['repost', event.id],
    async () => {
      const id = event.tags.find((el) => el[0] === 'e')[1];
      if (id === undefined) throw new Error('wrong id');

      const ndkEvent = await ndk.fetchEvent(id);
      if (!ndkEvent) throw new Error('Event not found');

      return ndkEvent;
    },
    {
      enabled: embedEvent === null,
      refetchOnWindowFocus: false,
    }
  );

  const renderKind = useCallback((repostEvent: NDKEvent) => {
    switch (repostEvent.kind) {
      case NDKKind.Text:
        return <TextNote content={repostEvent.content} />;
      case NDKKind.Article:
        return <ArticleNote event={repostEvent} />;
      case 1063:
        return <FileNote event={repostEvent} />;
      default:
        return <UnknownNote event={repostEvent} />;
    }
  }, []);

  if (embedEvent) {
    return (
      <div className="h-min w-full px-3 pb-3">
        <div className="relative overflow-hidden rounded-xl bg-white/10 px-3 py-3 backdrop-blur-xl">
          <div className="relative flex flex-col">
            <div className="isolate flex flex-col -space-y-4">
              <RepostUser pubkey={event.pubkey} />
              <User
                pubkey={embedEvent.pubkey}
                time={embedEvent.created_at}
                isRepost={true}
              />
            </div>
            <div className="-mt-2 flex items-start gap-3">
              <div className="w-11 shrink-0" />
              <div className="relative z-20 flex-1">
                {renderKind(embedEvent)}
                <NoteActions id={embedEvent.id} pubkey={embedEvent.pubkey} />
              </div>
            </div>
          </div>
        </div>
      </div>
    );
  }

  if (status === 'loading') {
    return (
      <div className="h-min w-full px-3 pb-3">
        <div className="relative overflow-hidden rounded-xl bg-white/10 px-3 py-3 backdrop-blur-xl">
          <NoteSkeleton />
        </div>
      </div>
    );
  }

  if (status === 'error') {
    // @ts-expect-error, root_id isn't exist on NDKEvent
    const noteLink = `https://njump.me/${nip19.noteEncode(event.root_id)}`;
    return (
      <div className="relative mb-5 flex flex-col">
        <div className="relative z-10 flex items-start gap-3">
          <div className="inline-flex h-11 w-11 items-end justify-center rounded-lg bg-black pb-1">
            <img src="/lume.png" alt="lume" className="h-auto w-1/3" />
          </div>
          <h5 className="truncate font-semibold leading-none text-white">
            Lume <span className="text-green-500">(System)</span>
          </h5>
        </div>
        <div className="-mt-6 flex items-start gap-3">
          <div className="w-11 shrink-0" />
          <div>
            <div className="relative z-20 mt-1 flex-1 select-text">
              <div className="mb-1 select-text rounded-lg bg-white/5 p-1.5 text-sm">
                Lume cannot find this post with your current relays, but you can view it
                via njump.me.{' '}
                <Link to={noteLink} className="text-fuchsia-500">
                  Learn more
                </Link>
              </div>
            </div>
            <LinkPreview urls={[noteLink]} />
          </div>
        </div>
      </div>
    );
  }

  return (
    <div className="h-min w-full px-3 pb-3">
      <div className="relative overflow-hidden rounded-xl bg-white/10 px-3 py-3 backdrop-blur-xl">
        <div className="relative flex flex-col">
          <div className="isolate flex flex-col -space-y-4">
            <RepostUser pubkey={event.pubkey} />
            <User pubkey={data.pubkey} time={data.created_at} isRepost={true} />
          </div>
          <div className="-mt-2 flex items-start gap-3">
            <div className="w-11 shrink-0" />
            <div className="relative z-20 flex-1">
              {renderKind(data)}
              <NoteActions id={data.id} pubkey={data.pubkey} />
            </div>
          </div>
        </div>
      </div>
    </div>
  );
}