'use client';

import { RelayContext } from '@components/relaysProvider';
import { UserBase } from '@components/user/base';

import { fetchProfileMetadata } from '@utils/hooks/useProfileMetadata';
import { createPleb, updateAccount } from '@utils/storage';
import { arrayToNIP02 } from '@utils/transform';

import { createClient } from '@supabase/supabase-js';
import { CheckCircle } from 'iconoir-react';
import { useRouter } from 'next/navigation';
import { getEventHash, signEvent } from 'nostr-tools';
import { Key, useCallback, useContext, useEffect, useState } from 'react';

const supabase = createClient(
  'https://niwaazauwnrwiwmnocnn.supabase.co',
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Im5pd2FhemF1d25yd2l3bW5vY25uIiwicm9sZSI6ImFub24iLCJpYXQiOjE2NzYwMjAzMjAsImV4cCI6MTk5MTU5NjMyMH0.IbjrnE6rDgC6lhIAHBIMN4niM2bPjxkRLtvAy_gFgqw'
);

const initialList = [
  { pubkey: '82341f882b6eabcd2ba7f1ef90aad961cf074af15b9ef44a09f9d2a8fbfbe6a2' },
  { pubkey: 'a341f45ff9758f570a21b000c17d4e53a3a497c8397f26c0e6d61e5acffc7a98' },
  { pubkey: '04c915daefee38317fa734444acee390a8269fe5810b2241e5e6dd343dfbecc9' },
  { pubkey: 'c4eabae1be3cf657bc1855ee05e69de9f059cb7a059227168b80b89761cbc4e0' },
  { pubkey: '6e468422dfb74a5738702a8823b9b28168abab8655faacb6853cd0ee15deee93' },
  { pubkey: 'e88a691e98d9987c964521dff60025f60700378a4879180dcbbb4a5027850411' },
  { pubkey: '3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d' },
  { pubkey: 'c49d52a573366792b9a6e4851587c28042fb24fa5625c6d67b8c95c8751aca15' },
  { pubkey: 'e33fe65f1fde44c6dc17eeb38fdad0fceaf1cae8722084332ed1e32496291d42' },
  { pubkey: '84dee6e676e5bb67b4ad4e042cf70cbd8681155db535942fcc6a0533858a7240' },
  { pubkey: '703e26b4f8bc0fa57f99d815dbb75b086012acc24fc557befa310f5aa08d1898' },
  { pubkey: 'bf2376e17ba4ec269d10fcc996a4746b451152be9031fa48e74553dde5526bce' },
  { pubkey: '4523be58d395b1b196a9b8c82b038b6895cb02b683d0c253a955068dba1facd0' },
  { pubkey: 'c9b19ffcd43e6a5f23b3d27106ce19e4ad2df89ba1031dd4617f1b591e108965' },
  { pubkey: 'c7dccba4fe4426a7b1ea239a5637ba40fab9862c8c86b3330fe65e9f667435f6' },
  { pubkey: '6e1534f56fc9e937e06237c8ba4b5662bcacc4e1a3cfab9c16d89390bec4fca3' },
  { pubkey: '50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63' },
  { pubkey: '3d2e51508699f98f0f2bdbe7a45b673c687fe6420f466dc296d90b908d51d594' },
  { pubkey: '6e3f51664e19e082df5217fd4492bb96907405a0b27028671dd7f297b688608c' },
  { pubkey: '2edbcea694d164629854a52583458fd6d965b161e3c48b57d3aff01940558884' },
  { pubkey: '3f770d65d3a764a9c5cb503ae123e62ec7598ad035d836e2a810f3877a745b24' },
  { pubkey: 'eab0e756d32b80bcd464f3d844b8040303075a13eabc3599a762c9ac7ab91f4f' },
  { pubkey: 'be1d89794bf92de5dd64c1e60f6a2c70c140abac9932418fee30c5c637fe9479' },
  { pubkey: 'a5e93aef8e820cbc7ab7b6205f854b87aed4b48c5f6b30fbbeba5c99e40dcf3f' },
  { pubkey: '1989034e56b8f606c724f45a12ce84a11841621aaf7182a1f6564380b9c4276b' },
  { pubkey: 'c48b5cced5ada74db078df6b00fa53fc1139d73bf0ed16de325d52220211dbd5' },
  { pubkey: '460c25e682fda7832b52d1f22d3d22b3176d972f60dcdc3212ed8c92ef85065c' },
  { pubkey: '7f3b464b9ff3623630485060cbda3a7790131c5339a7803bde8feb79a5e1b06a' },
  { pubkey: 'b99dbca0184a32ce55904cb267b22e434823c97f418f36daf5d2dff0dd7b5c27' },
  { pubkey: 'e9e4276490374a0daf7759fd5f475deff6ffb9b0fc5fa98c902b5f4b2fe3bba2' },
  { pubkey: 'ea2e3c814d08a378f8a5b8faecb2884d05855975c5ca4b5c25e2d6f936286f14' },
  { pubkey: 'ff04a0e6cd80c141b0b55825fed127d4532a6eecdb7e743a38a3c28bf9f44609' },
];

export default function Page({ params }: { params: { slug: string } }) {
  const router = useRouter();

  const pubkey = params.slug[0];
  const privkey = params.slug[1];

  const [pool, relays]: any = useContext(RelayContext);
  const [loading, setLoading] = useState(false);
  const [list, setList]: any = useState(initialList);
  const [follows, setFollows] = useState([]);

  // toggle follow state
  const toggleFollow = (pubkey: string) => {
    const arr = follows.includes(pubkey) ? follows.filter((i) => i !== pubkey) : [...follows, pubkey];
    setFollows(arr);
  };

  // save follows to database then broadcast
  const submit = useCallback(async () => {
    setLoading(true);

    const nip02 = arrayToNIP02(follows);

    // update account's folllows with NIP-02 tag list
    updateAccount('follows', follows, pubkey);

    // create pleb
    for (const tag of follows) {
      fetchProfileMetadata(tag)
        .then((res: any) => createPleb(tag, res.content))
        .catch(console.error);
    }

    // build event
    const event: any = {
      content: '',
      created_at: Math.floor(Date.now() / 1000),
      kind: 3,
      pubkey: pubkey,
      tags: nip02,
    };
    event.id = getEventHash(event);
    event.sig = signEvent(event, privkey);
    // broadcast
    pool.publish(event, relays);
    // redirect to splashscreen
    router.replace('/');
  }, [pubkey, privkey, follows, pool, relays, router]);

  useEffect(() => {
    const fetchData = async () => {
      const { data } = await supabase.from('random_users').select('pubkey').limit(28);
      // update state
      setList((list: any) => [...list, ...data]);
    };

    fetchData().catch(console.error);
  }, []);

  return (
    <div className="relative grid h-full w-full grid-rows-5">
      <div className="row-span-1 flex items-center justify-center">
        <div className="text-center">
          <h1 className="bg-gradient-to-br from-zinc-200 to-zinc-400 bg-clip-text text-3xl font-medium leading-tight text-transparent">
            Personalized your newsfeed
          </h1>
          <h3 className="text-lg text-zinc-500">
            Follow at least{' '}
            <span className="bg-gradient-to-r from-fuchsia-300 via-orange-100 to-amber-300 bg-clip-text text-transparent">
              {follows.length}/10
            </span>{' '}
            plebs
          </h3>
        </div>
      </div>
      <div className="row-span-4 h-full w-full overflow-y-auto">
        <div className="grid grid-cols-4 gap-4 px-8 py-4">
          {list.map((item: { pubkey: string }, index: Key) => (
            <button
              key={index}
              onClick={() => toggleFollow(item.pubkey)}
              className="flex transform items-center justify-between rounded-lg bg-zinc-900 p-2 ring-amber-100 hover:ring-1 active:translate-y-1"
            >
              <UserBase pubkey={item.pubkey} />
              {follows.includes(item.pubkey) && (
                <div>
                  <CheckCircle width={16} height={16} className="text-zinc-400" />
                </div>
              )}
            </button>
          ))}
        </div>
      </div>
      {follows.length >= 10 && (
        <div className="fixed bottom-0 left-0 z-10 flex h-24 w-full items-center justify-center">
          <button
            onClick={() => submit()}
            className="relative z-20 inline-flex w-36 transform items-center justify-center rounded-full bg-gradient-to-r from-fuchsia-300 via-orange-100 to-amber-300 px-3.5 py-2.5 font-medium text-zinc-800 shadow-xl active:translate-y-1 disabled:cursor-not-allowed disabled:opacity-30"
          >
            {loading === true ? (
              <svg
                className="h-5 w-5 animate-spin text-zinc-900"
                xmlns="http://www.w3.org/2000/svg"
                fill="none"
                viewBox="0 0 24 24"
              >
                <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4"></circle>
                <path
                  className="opacity-75"
                  fill="currentColor"
                  d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
                ></path>
              </svg>
            ) : (
              <span className="drop-shadow-lg">Done! Go to newsfeed</span>
            )}
          </button>
        </div>
      )}
    </div>
  );
}