import { Show, For, createSignal, createMemo, type JSX, type Component } from 'solid-js';
import type { Event as NostrEvent } from 'nostr-tools';
import uniq from 'lodash/uniq';

import HeartOutlined from 'heroicons/24/outline/heart.svg';
import HeartSolid from 'heroicons/24/solid/heart.svg';
import ArrowPathRoundedSquare from 'heroicons/24/outline/arrow-path-rounded-square.svg';
import ChatBubbleLeft from 'heroicons/24/outline/chat-bubble-left.svg';
import EllipsisHorizontal from 'heroicons/24/outline/ellipsis-horizontal.svg';

import useProfile from '@/nostr/useProfile';
import useConfig from '@/nostr/useConfig';
import usePubkey from '@/nostr/usePubkey';
import useCommands from '@/nostr/useCommands';
import useReactions from '@/nostr/useReactions';
import useDeprecatedReposts from '@/nostr/useDeprecatedReposts';
import useDatePulser from '@/hooks/useDatePulser';
import { formatRelative } from '@/utils/formatDate';
import ColumnItem from '@/components/ColumnItem';
import GeneralUserMentionDisplay from '@/components/textNote/GeneralUserMentionDisplay';
import TextNoteContentDisplay from '@/components/textNote/TextNoteContentDisplay';
import ReplyPostForm from '@/components/ReplyPostForm';

export type TextNoteProps = {
  event: NostrEvent;
};

const TextNote: Component<TextNoteProps> = (props) => {
  const currentDate = useDatePulser();
  const [config] = useConfig();
  const commands = useCommands();
  const pubkey = usePubkey();
  const [showReplyForm, setShowReplyForm] = createSignal(false);

  const { profile: author } = useProfile(() => ({
    relayUrls: config().relayUrls,
    pubkey: props.event.pubkey,
  }));

  const { reactions, isReactedBy, invalidateReactions } = useReactions(() => ({
    relayUrls: config().relayUrls,
    eventId: props.event.id,
  }));

  const { reposts, isRepostedBy, invalidateDeprecatedReposts } = useDeprecatedReposts(() => ({
    relayUrls: config().relayUrls,
    eventId: props.event.id,
  }));

  const isReactedByMe = createMemo(() => isReactedBy(pubkey()));
  const isRepostedByMe = createMemo(() => isRepostedBy(pubkey()));

  const replyingToPubKeys = createMemo(() =>
    uniq(props.event.tags.filter((tag) => tag[0] === 'p').map((e) => e[1])),
  );
  const createdAt = () => formatRelative(new Date(props.event.created_at * 1000), currentDate());

  const handleReplyPost = ({ content }: { content: string }) => {
    commands
      .publishTextNote({
        relayUrls: config().relayUrls,
        pubkey: pubkey(),
        content,
        notifyPubkeys: [props.event.pubkey, ...replyingToPubKeys()],
        replyEventId: props.event.id,
      })
      .then(() => {
        setShowReplyForm(false);
      });
  };

  const handleRepost: JSX.EventHandler<HTMLButtonElement, MouseEvent> = (ev) => {
    ev.preventDefault();

    commands
      .publishDeprecatedRepost({
        relayUrls: config().relayUrls,
        pubkey: pubkey(),
        eventId: props.event.id,
        notifyPubkey: props.event.pubkey,
      })
      .then(() => invalidateDeprecatedReposts());
  };

  const handleReaction: JSX.EventHandler<HTMLButtonElement, MouseEvent> = (ev) => {
    if (isReactedByMe()) {
      // TODO remove reaction
      return;
    }
    ev.preventDefault();

    commands
      .publishReaction({
        relayUrls: config().relayUrls,
        pubkey: pubkey(),
        content: '+',
        eventId: props.event.id,
        notifyPubkey: props.event.pubkey,
      })
      .then(() => invalidateReactions());
  };

  return (
    <div class="textnote">
      <ColumnItem>
        <div class="flex flex-col">
          <div class="flex w-full gap-1">
            <div class="author-icon h-10 w-10 shrink-0">
              <Show when={author()?.picture}>
                {/* TODO 画像は脆弱性回避のためにimgじゃない方法で読み込みたい */}
                <img
                  src={author()?.picture}
                  alt="icon"
                  // TODO autofit
                  class="h-10 w-10 rounded"
                />
              </Show>
            </div>
            <div class="min-w-0 flex-auto">
              <div class="flex justify-between gap-1 text-xs">
                <div class="author flex min-w-0 truncate">
                  {/* TODO link to author */}
                  <Show when={(author()?.display_name?.length ?? 0) > 0}>
                    <div class="author-name truncate pr-1 font-bold">{author()?.display_name}</div>
                  </Show>
                  <div class="author-username truncate text-zinc-600">
                    <Show when={author()?.name} fallback={props.event.pubkey}>
                      @{author()?.name}
                    </Show>
                  </div>
                </div>
                <div class="created-at shrink-0">{createdAt()}</div>
              </div>
              <Show when={replyingToPubKeys().length > 0}>
                <div class="text-xs">
                  {'Replying to '}
                  <For each={replyingToPubKeys()}>
                    {(replyToPubkey: string) => (
                      <span class="pr-1 text-blue-500 underline">
                        <GeneralUserMentionDisplay pubkey={replyToPubkey} />
                      </span>
                    )}
                  </For>
                </div>
              </Show>
              <div class="content whitespace-pre-wrap break-all">
                <TextNoteContentDisplay event={props.event} embedding={true} />
              </div>
              <div class="flex w-48 items-center justify-between gap-8 pt-1">
                <button
                  class="h-4 w-4 text-zinc-400"
                  onClick={() => setShowReplyForm((current) => !current)}
                >
                  <ChatBubbleLeft />
                </button>
                <div
                  class="flex items-center gap-1"
                  classList={{
                    'text-zinc-400': !isRepostedByMe(),
                    'text-green-400': isRepostedByMe(),
                  }}
                >
                  <button class="h-4 w-4" onClick={handleRepost}>
                    <ArrowPathRoundedSquare />
                  </button>
                  <Show when={reposts().length > 0}>
                    <div class="text-sm text-zinc-400">{reposts().length}</div>
                  </Show>
                </div>
                <div
                  class="flex items-center gap-1"
                  classList={{
                    'text-zinc-400': !isReactedByMe(),
                    'text-rose-400': isReactedByMe(),
                  }}
                >
                  <button class="h-4 w-4" onClick={handleReaction}>
                    <Show when={isReactedByMe()} fallback={<HeartOutlined />}>
                      <HeartSolid />
                    </Show>
                  </button>
                  <Show when={reactions().length > 0}>
                    <div class="text-sm text-zinc-400">{reactions().length}</div>
                  </Show>
                </div>
                <button class="h-4 w-4 text-zinc-400">
                  <EllipsisHorizontal />
                </button>
              </div>
            </div>
          </div>
          <Show when={showReplyForm()}>
            <ReplyPostForm
              replyTo={props.event}
              onPost={handleReplyPost}
              onClose={() => setShowReplyForm(false)}
            />
          </Show>
        </div>
      </ColumnItem>
    </div>
  );
};

export default TextNote;