/* eslint-disable @next/next/no-img-element -- External or generated image URLs; next/image migration is out of scope. */
import { useState, useEffect } from 'react';
import { useRouter } from 'next/router';
import Link from 'next/link';
import { useAuth } from '../lib/use-auth.js';
import AnimatedFireLogo from '../components/AnimatedFireLogo';
import { Button, GlassSurface } from '../components/ui';

export default function Home() {
  const { user, loading } = useAuth();
  const router = useRouter();
  const [featuredCollections, setFeaturedCollections] = useState([]);
  const [collectionsLoading, setCollectionsLoading] = useState(true);

  useEffect(() => {
    if (!loading && user) {
      router.push('/dashboard');
    }
  }, [user, loading, router]);

  useEffect(() => {
    const fetchFeaturedCollections = async () => {
      try {
        const response = await fetch('/api/public/collections?limit=6');
        if (response.ok) {
          const collections = await response.json();
          setFeaturedCollections(collections);
        }
      } catch (error) {
        console.error('Error fetching featured collections:', error);
      } finally {
        setCollectionsLoading(false);
      }
    };
    fetchFeaturedCollections();
  }, []);

  if (loading) {
    return (
      <div
        className="min-h-screen flex items-center justify-center"
        style={{ backgroundColor: 'var(--bg-primary)' }}
      >
        <div className="text-center">
          <div
            className="motion-essential animate-spin rounded-full h-12 w-12 border-b-2 mx-auto mb-4"
            style={{ borderColor: 'var(--accent-ember)' }}
          />
          <p style={{ color: 'var(--text-secondary)' }}>Loading...</p>
        </div>
      </div>
    );
  }

  if (user) {
    return null;
  }

  return (
    <div className="min-h-screen" style={{ backgroundColor: 'var(--bg-primary)' }}>
      <nav
        className="page-header-glass border-b"
        style={{
          borderColor: 'var(--border)',
        }}
      >
        <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
          <div className="flex justify-between items-center py-4">
            <div className="flex items-center space-x-3">
              <AnimatedFireLogo size={40} />
              <h1 className="text-2xl font-bold gradient-text-flame">Deck Hearth</h1>
            </div>
            <div className="flex items-center space-x-4">
              <Link href="/login">
                <Button variant="ghost" size="sm">
                  Sign In
                </Button>
              </Link>
              <Link href="/signup">
                <Button variant="primary" size="sm">
                  Get Started
                </Button>
              </Link>
            </div>
          </div>
        </div>
      </nav>

      <section className="relative py-20 px-4">
        <div className="max-w-6xl mx-auto text-center">
          <div className="mb-8">
            <AnimatedFireLogo size={120} />
          </div>
          <h1 className="text-5xl md:text-7xl font-bold mb-6">
            <span className="gradient-text-flame">Deck Hearth</span>
          </h1>
          <p
            className="text-xl md:text-2xl mb-8 max-w-3xl mx-auto leading-relaxed"
            style={{ color: 'var(--text-secondary)' }}
          >
            The ultimate hub for trading card collectors. Organize your cards into lists,
            discover rare cards, and connect with fellow enthusiasts in one beautiful
            platform.
          </p>
          <div className="flex flex-col sm:flex-row gap-4 justify-center items-center">
            <Link href="/signup">
              <Button variant="primary" size="lg">
                Start Your Collection
              </Button>
            </Link>
            <Link href="/community/collections">
              <Button variant="secondary" size="lg">
                Explore Lists
              </Button>
            </Link>
          </div>
        </div>
      </section>

      <section className="py-20 px-4" style={{ backgroundColor: 'var(--bg-secondary)' }}>
        <div className="max-w-6xl mx-auto">
          <h2 className="text-4xl font-bold text-center mb-16 gradient-text-gold">
            Everything You Need to Manage Your Cards
          </h2>
          <div className="grid md:grid-cols-3 gap-8">
            <GlassSurface
              tint="mid"
              rim="subtle"
              elevation="ambient"
              className="text-center p-8 rounded-2xl"
            >
              <div
                className="w-16 h-16 mx-auto mb-6 rounded-2xl flex items-center justify-center"
                style={{ backgroundColor: 'var(--accent-ember)' }}
              >
                <svg
                  className="w-8 h-8 text-white"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                  aria-hidden="true"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10"
                  />
                </svg>
              </div>
              <h3 className="text-xl font-bold mb-4 gradient-text-flame">Organize Lists</h3>
              <p style={{ color: 'var(--text-secondary)' }}>
                Create custom lists, track card values, and organize by sets, rarity, or any
                system that works for you.
              </p>
            </GlassSurface>
            <GlassSurface
              tint="mid"
              rim="subtle"
              elevation="ambient"
              className="text-center p-8 rounded-2xl"
            >
              <div
                className="w-16 h-16 mx-auto mb-6 rounded-2xl flex items-center justify-center"
                style={{ backgroundColor: 'var(--accent-gold)' }}
              >
                <svg
                  className="w-8 h-8 text-white"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                  aria-hidden="true"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"
                  />
                </svg>
              </div>
              <h3 className="text-xl font-bold mb-4 gradient-text-gold">Discover Cards</h3>
              <p style={{ color: 'var(--text-secondary)' }}>
                Search through thousands of cards across multiple TCGs. Find that missing
                piece for your binder.
              </p>
            </GlassSurface>
            <GlassSurface
              tint="mid"
              rim="subtle"
              elevation="ambient"
              className="text-center p-8 rounded-2xl"
            >
              <div
                className="w-16 h-16 mx-auto mb-6 rounded-2xl flex items-center justify-center"
                style={{ backgroundColor: 'var(--accent-flame)' }}
              >
                <svg
                  className="w-8 h-8 text-white"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                  aria-hidden="true"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"
                  />
                </svg>
              </div>
              <h3 className="text-xl font-bold mb-4 gradient-text-ember">Connect & Share</h3>
              <p style={{ color: 'var(--text-secondary)' }}>
                Share your lists with the community, collaborate with friends, and discover
                amazing lists from other collectors.
              </p>
            </GlassSurface>
          </div>
        </div>
      </section>

      <section className="py-20 px-4">
        <div className="max-w-6xl mx-auto">
          <div className="text-center mb-16">
            <h2 className="text-4xl font-bold mb-4 gradient-text-flame">Featured Lists</h2>
            <p className="text-xl" style={{ color: 'var(--text-secondary)' }}>
              Discover amazing lists from our community
            </p>
          </div>

          {collectionsLoading ? (
            <div className="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
              {[...Array(6)].map((_, i) => (
                <div
                  key={i}
                  className="motion-essential rounded-2xl p-6 animate-pulse"
                  style={{ backgroundColor: 'var(--bg-secondary)' }}
                >
                  <div
                    className="h-32 rounded-xl mb-4"
                    style={{ backgroundColor: 'var(--bg-tertiary)' }}
                  />
                  <div
                    className="h-6 rounded mb-2"
                    style={{ backgroundColor: 'var(--bg-tertiary)' }}
                  />
                  <div
                    className="h-4 rounded mb-4"
                    style={{ backgroundColor: 'var(--bg-tertiary)' }}
                  />
                  <div className="flex justify-between">
                    <div
                      className="h-4 w-16 rounded"
                      style={{ backgroundColor: 'var(--bg-tertiary)' }}
                    />
                    <div
                      className="h-4 w-20 rounded"
                      style={{ backgroundColor: 'var(--bg-tertiary)' }}
                    />
                  </div>
                </div>
              ))}
            </div>
          ) : (
            <div className="grid md:grid-cols-2 lg:grid-cols-3 gap-6">
              {featuredCollections.map((collection) => (
                <Link
                  key={collection.id}
                  href={`/collection/${collection.slug || collection.id}`}
                >
                  <GlassSurface
                    tint="mid"
                    rim="subtle"
                    elevation="ambient"
                    className="block rounded-2xl p-6 hover:scale-105"
                    style={{
                      transition:
                        'transform var(--motion-duration-default) var(--motion-ease-out), box-shadow var(--motion-duration-default) var(--motion-ease-out)',
                    }}
                  >
                    <div
                      className="h-32 rounded-xl mb-4 flex items-center justify-center"
                      style={{ backgroundColor: 'var(--bg-tertiary)' }}
                    >
                      {collection.image ? (
                        <img
                          src={collection.image}
                          alt={collection.name}
                          className="w-full h-full object-cover rounded-xl"
                        />
                      ) : (
                        <div className="text-center">
                          <div
                            className="w-12 h-12 mx-auto mb-2 rounded-xl flex items-center justify-center"
                            style={{ backgroundColor: 'var(--accent-ember)' }}
                          >
                            <svg
                              className="w-6 h-6 text-white"
                              fill="none"
                              stroke="currentColor"
                              viewBox="0 0 24 24"
                              aria-hidden="true"
                            >
                              <path
                                strokeLinecap="round"
                                strokeLinejoin="round"
                                strokeWidth={2}
                                d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10"
                              />
                            </svg>
                          </div>
                          <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
                            {collection.cardCount} cards
                          </p>
                        </div>
                      )}
                    </div>
                    <h3 className="text-xl font-bold mb-2 gradient-text-flame">
                      {collection.name}
                    </h3>
                    <p
                      className="text-sm mb-4 line-clamp-2"
                      style={{ color: 'var(--text-secondary)' }}
                    >
                      {collection.description || 'A carefully curated list'}
                    </p>
                    <div className="flex justify-between items-center">
                      <span
                        className="text-sm font-medium"
                        style={{ color: 'var(--text-primary)' }}
                      >
                        {collection.cardCount} cards
                      </span>
                      <span className="text-sm" style={{ color: 'var(--text-secondary)' }}>
                        by {collection.creator}
                      </span>
                    </div>
                  </GlassSurface>
                </Link>
              ))}
            </div>
          )}

          <div className="text-center mt-12">
            <Link href="/community/collections">
              <Button variant="secondary" size="lg">
                View All Lists
                <svg
                  className="w-5 h-5 ml-2 inline-block"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                  aria-hidden="true"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M17 8l4 4m0 0l-4 4m4-4H3"
                  />
                </svg>
              </Button>
            </Link>
          </div>
        </div>
      </section>

      <section className="py-20 px-4" style={{ backgroundColor: 'var(--bg-secondary)' }}>
        <div className="max-w-4xl mx-auto text-center">
          <h2 className="text-4xl font-bold mb-6 gradient-text-flame">
            Ready to Start Your Journey?
          </h2>
          <p className="text-xl mb-8" style={{ color: 'var(--text-secondary)' }}>
            Join thousands of collectors who trust Deck Hearth to manage their cards and
            lists.
          </p>
          <div className="flex flex-col sm:flex-row gap-4 justify-center items-center">
            <Link href="/signup">
              <Button variant="primary" size="lg">
                Create Free Account
              </Button>
            </Link>
            <Link href="/cards">
              <Button variant="secondary" size="lg">
                Browse Cards
              </Button>
            </Link>
          </div>
        </div>
      </section>

      <footer
        className="py-12 px-4 border-t"
        style={{
          backgroundColor: 'var(--bg-primary)',
          borderColor: 'var(--border)',
        }}
      >
        <div className="max-w-6xl mx-auto">
          <div className="flex flex-col md:flex-row justify-between items-center">
            <div className="flex items-center space-x-3 mb-4 md:mb-0">
              <AnimatedFireLogo size={32} />
              <span className="text-xl font-bold gradient-text-flame">Deck Hearth</span>
            </div>
            <div className="flex space-x-6">
              <Link
                href="/community/collections"
                className="hover:opacity-80 transition-opacity"
                style={{ color: 'var(--text-secondary)' }}
              >
                Community
              </Link>
              <Link
                href="/cards"
                className="hover:opacity-80 transition-opacity"
                style={{ color: 'var(--text-secondary)' }}
              >
                Cards
              </Link>
              <Link
                href="/login"
                className="hover:opacity-80 transition-opacity"
                style={{ color: 'var(--text-secondary)' }}
              >
                Sign In
              </Link>
            </div>
          </div>
          <div
            className="mt-8 pt-8 border-t text-center"
            style={{ borderColor: 'var(--border)' }}
          >
            <p style={{ color: 'var(--text-secondary)' }}>
              © 2024 Deck Hearth. Built for collectors, by collectors.
            </p>
          </div>
        </div>
      </footer>
    </div>
  );
}
