import { redirect } from 'next/navigation';

import { getAppMode } from '@/lib/mode';
import { getAuthService } from '@/lib/auth';
import Hero from '@/components/landing/Hero';
import AlternatingSection from '@/components/landing/AlternatingSection';
import FeatureGrid from '@/components/landing/FeatureGrid';
import DiscordCTA from '@/components/landing/DiscordCTA';
import FAQ from '@/components/landing/FAQ';
import Footer from '@/components/landing/Footer';
import CareerProgressionMockup from '@/components/mockups/CareerProgressionMockup';
import RaceHistoryMockup from '@/components/mockups/RaceHistoryMockup';
import CompanionAutomationMockup from '@/components/mockups/CompanionAutomationMockup';
import SimPlatformMockup from '@/components/mockups/SimPlatformMockup';
import MockupStack from '@/components/ui/MockupStack';
import Card from '@/components/ui/Card';
import Button from '@/components/ui/Button';
import {
  topLeagues,
  teams,
  getUpcomingRaces,
} from '@gridpilot/testing-support';

export default async function HomePage() {
  const authService = getAuthService();
  const session = await authService.getCurrentSession();

  if (session) {
    redirect('/dashboard');
  }

  const mode = getAppMode();
  const isAlpha = mode === 'alpha';
  const upcomingRaces = getUpcomingRaces(3);

  return (
    <main className="min-h-screen">
      <Hero />

      {/* Section 1: A Persistent Identity */}
      <AlternatingSection
        heading="A Persistent Identity"
        backgroundVideo="/gameplay.mp4"
        description={
          <>
            <p>
              Your races, your seasons, your progress — finally in one place.
            </p>
            <div className="space-y-3 mt-4">
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-4 border border-slate-700/40 hover:border-primary-blue/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(59,130,246,0.15)]">
                <div className="absolute top-0 left-0 w-full h-0.5 bg-gradient-to-r from-transparent via-primary-blue/60 to-transparent opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-3">
                  <div className="flex-shrink-0 w-9 h-9 rounded-lg bg-gradient-to-br from-primary-blue/20 to-blue-900/20 border border-primary-blue/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-5 h-5 text-primary-blue" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M5 13l4 4L19 7" />
                    </svg>
                  </div>
                  <span className="text-slate-200 leading-relaxed font-light">
                    Lifetime stats and season history across all your leagues
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-4 border border-slate-700/40 hover:border-primary-blue/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(59,130,246,0.15)]">
                <div className="absolute top-0 left-0 w-full h-0.5 bg-gradient-to-r from-transparent via-primary-blue/60 to-transparent opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-3">
                  <div className="flex-shrink-0 w-9 h-9 rounded-lg bg-gradient-to-br from-primary-blue/20 to-blue-900/20 border border-primary-blue/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-5 h-5 text-primary-blue" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M5 13l4 4L19 7" />
                    </svg>
                  </div>
                  <span className="text-slate-200 leading-relaxed font-light">
                    Track your performance, consistency, and team contributions
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-4 border border-slate-700/40 hover:border-primary-blue/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(59,130,246,0.15)]">
                <div className="absolute top-0 left-0 w-full h-0.5 bg-gradient-to-r from-transparent via-primary-blue/60 to-transparent opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-3">
                  <div className="flex-shrink-0 w-9 h-9 rounded-lg bg-gradient-to-br from-primary-blue/20 to-blue-900/20 border border-primary-blue/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-5 h-5 text-primary-blue" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M5 13l4 4L19 7" />
                    </svg>
                  </div>
                  <span className="text-slate-200 leading-relaxed font-light">
                    Your own rating that reflects real league competition
                  </span>
                </div>
              </div>
            </div>
            <p className="mt-4">
              iRacing gives you physics. GridPilot gives you a career.
            </p>
          </>
        }
        mockup={<CareerProgressionMockup />}
        layout="text-left"
      />

      <FeatureGrid />

      {/* Section 2: Results That Actually Stay */}
      <AlternatingSection
        heading="Results That Actually Stay"
        backgroundImage="/images/ff1600.jpeg"
        description={
          <>
            <p className="text-sm md:text-base leading-relaxed">
              Every race you run stays with you.
            </p>
            <div className="space-y-3 mt-4 md:mt-6">
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-3.5 md:p-4 border border-slate-700/40 hover:border-red-600/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(220,38,38,0.15)]">
                <div className="absolute top-0 right-0 w-12 h-12 bg-gradient-to-bl from-red-600/10 to-transparent rounded-bl-3xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3">
                  <div className="flex-shrink-0 w-8 h-8 md:w-9 md:h-9 rounded-lg bg-gradient-to-br from-red-600/20 to-red-900/20 border border-red-600/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-4 h-4 md:w-5 md:h-5 text-red-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M13.828 10.172a4 4 0 00-5.656 0l-4 4a4 4 0 105.656 5.656l1.102-1.101m-.758-4.899a4 4 0 005.656 0l4-4a4 4 0 00-5.656-5.656l-1.1 1.1" />
                    </svg>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    Your stats, your team, your story — all connected
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-3.5 md:p-4 border border-slate-700/40 hover:border-red-600/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(220,38,38,0.15)]">
                <div className="absolute top-0 right-0 w-12 h-12 bg-gradient-to-bl from-red-600/10 to-transparent rounded-bl-3xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3">
                  <div className="flex-shrink-0 w-8 h-8 md:w-9 md:h-9 rounded-lg bg-gradient-to-br from-red-600/20 to-red-900/20 border border-red-600/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-4 h-4 md:w-5 md:h-5 text-red-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
                    </svg>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    One race result updates your profile, team points, rating, and season history
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-r from-slate-900/60 via-slate-800/40 to-slate-900/60 p-3.5 md:p-4 border border-slate-700/40 hover:border-red-600/50 transition-all duration-300 hover:shadow-[0_0_25px_rgba(220,38,38,0.15)]">
                <div className="absolute top-0 right-0 w-12 h-12 bg-gradient-to-bl from-red-600/10 to-transparent rounded-bl-3xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3">
                  <div className="flex-shrink-0 w-8 h-8 md:w-9 md:h-9 rounded-lg bg-gradient-to-br from-red-600/20 to-red-900/20 border border-red-600/30 flex items-center justify-center shadow-lg group-hover:scale-105 transition-transform">
                    <svg className="w-4 h-4 md:w-5 md:h-5 text-red-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2.5} d="M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z" />
                    </svg>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    No more fragmented data across spreadsheets and forums
                  </span>
                </div>
              </div>
            </div>
            <p className="mt-4 md:mt-6 text-sm md:text-base leading-relaxed">
              Your racing career, finally in one place.
            </p>
          </>
        }
        mockup={<MockupStack index={1}><RaceHistoryMockup /></MockupStack>}
        layout="text-right"
      />

      {/* Section 3: Automatic Session Creation */}
      <AlternatingSection
        heading="Automatic Session Creation"
        description={
          <>
            <p className="text-sm md:text-base leading-relaxed">
              Setting up league races used to mean clicking through iRacing's wizard 20 times.
            </p>
            <div className="space-y-3 mt-4 md:mt-6">
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-br from-slate-900/70 to-slate-800/50 p-3.5 md:p-4 border border-slate-700/50 hover:border-primary-blue/60 transition-all duration-300 hover:shadow-[0_0_30px_rgba(59,130,246,0.2)]">
                <div className="absolute -top-12 -right-12 w-24 h-24 bg-gradient-to-br from-primary-blue/10 to-transparent rounded-full blur-2xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3 relative">
                  <div className="flex-shrink-0 w-9 h-9 md:w-10 md:h-10 rounded-xl bg-gradient-to-br from-primary-blue/25 to-blue-900/25 border border-primary-blue/40 flex items-center justify-center shadow-lg group-hover:shadow-primary-blue/20 group-hover:scale-110 transition-all">
                    <span className="text-primary-blue font-bold text-sm">1</span>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    Our companion app syncs with your league schedule
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-br from-slate-900/70 to-slate-800/50 p-3.5 md:p-4 border border-slate-700/50 hover:border-primary-blue/60 transition-all duration-300 hover:shadow-[0_0_30px_rgba(59,130,246,0.2)]">
                <div className="absolute -top-12 -right-12 w-24 h-24 bg-gradient-to-br from-primary-blue/10 to-transparent rounded-full blur-2xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3 relative">
                  <div className="flex-shrink-0 w-9 h-9 md:w-10 md:h-10 rounded-xl bg-gradient-to-br from-primary-blue/25 to-blue-900/25 border border-primary-blue/40 flex items-center justify-center shadow-lg group-hover:shadow-primary-blue/20 group-hover:scale-110 transition-all">
                    <span className="text-primary-blue font-bold text-sm">2</span>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    When it's race time, it creates the iRacing session automatically
                  </span>
                </div>
              </div>
              <div className="group relative overflow-hidden rounded-lg bg-gradient-to-br from-slate-900/70 to-slate-800/50 p-3.5 md:p-4 border border-slate-700/50 hover:border-primary-blue/60 transition-all duration-300 hover:shadow-[0_0_30px_rgba(59,130,246,0.2)]">
                <div className="absolute -top-12 -right-12 w-24 h-24 bg-gradient-to-br from-primary-blue/10 to-transparent rounded-full blur-2xl opacity-0 group-hover:opacity-100 transition-opacity" />
                <div className="flex items-start gap-2.5 md:gap-3 relative">
                  <div className="flex-shrink-0 w-9 h-9 md:w-10 md:h-10 rounded-xl bg-gradient-to-br from-primary-blue/25 to-blue-900/25 border border-primary-blue/40 flex items-center justify-center shadow-lg group-hover:shadow-primary-blue/20 group-hover:scale-110 transition-all">
                    <span className="text-primary-blue font-bold text-sm">3</span>
                  </div>
                  <span className="text-slate-200 text-sm md:text-base leading-relaxed font-light">
                    No clicking through wizards. No manual setup
                  </span>
                </div>
              </div>
            </div>
            <p className="mt-4 md:mt-6 text-sm md:text-base leading-relaxed">
              Automation instead of repetition.
            </p>
          </>
        }
        mockup={<CompanionAutomationMockup />}
        layout="text-left"
      />

      {/* Section 4: Game-Agnostic Platform */}
      <AlternatingSection
        heading="Built for iRacing. Ready for the future."
        backgroundImage="/images/lmp3.jpeg"
        description={
          <>
            <p className="text-sm md:text-base leading-relaxed">
              Right now, we're focused on making iRacing league racing better.
            </p>
            <p className="mt-4 md:mt-6 text-sm md:text-base leading-relaxed">
              But sims come and go. Your leagues, your teams, your rating — those stay.
            </p>
            <p className="mt-4 md:mt-6 text-sm md:text-base leading-relaxed">
              GridPilot is built to outlast any single platform.
            </p>
            <p className="mt-4 md:mt-6 text-sm md:text-base leading-relaxed">
              When the next sim arrives, your competitive identity moves with you.
            </p>
          </>
        }
        mockup={<SimPlatformMockup />}
        layout="text-right"
      />

      {/* Alpha-only discovery section */}
      {isAlpha && (
        <section className="max-w-7xl mx-auto mt-20 mb-20 px-6">
          <div className="flex items-baseline justify-between mb-8">
            <div>
              <h2 className="text-2xl font-semibold text-white">Discover the grid</h2>
              <p className="text-sm text-gray-400">
                Explore leagues, teams, and races that make up the GridPilot ecosystem.
              </p>
            </div>
          </div>

          <div className="grid gap-8 lg:grid-cols-3">
            {/* Top leagues */}
            <Card className="bg-iron-gray/80">
              <div className="flex items-baseline justify-between mb-4">
                <h3 className="text-sm font-semibold text-white">Featured leagues</h3>
                <Button
                  as="a"
                  href="/leagues"
                  variant="secondary"
                  className="text-[11px] px-3 py-1.5"
                >
                  View all
                </Button>
              </div>
              <ul className="space-y-3 text-sm">
                {topLeagues.slice(0, 4).map(league => (
                  <li key={league.id} className="flex items-start gap-3">
                    <div className="w-10 h-10 rounded-md bg-primary-blue/15 border border-primary-blue/30 flex items-center justify-center text-xs font-semibold text-primary-blue">
                      {league.name
                        .split(' ')
                        .map(word => word[0])
                        .join('')
                        .slice(0, 3)
                        .toUpperCase()}
                    </div>
                    <div className="flex-1 min-w-0">
                      <p className="text-white truncate">{league.name}</p>
                      <p className="text-xs text-gray-400 line-clamp-2">
                        {league.description}
                      </p>
                    </div>
                  </li>
                ))}
              </ul>
            </Card>

            {/* Teams */}
            <Card className="bg-iron-gray/80">
              <div className="flex items-baseline justify-between mb-4">
                <h3 className="text-sm font-semibold text-white">Teams on the grid</h3>
                <Button
                  as="a"
                  href="/teams"
                  variant="secondary"
                  className="text-[11px] px-3 py-1.5"
                >
                  Browse teams
                </Button>
              </div>
              <ul className="space-y-3 text-sm">
                {teams.slice(0, 4).map(team => (
                  <li key={team.id} className="flex items-start gap-3">
                    <div className="w-10 h-10 rounded-md bg-charcoal-outline flex items-center justify-center text-xs font-semibold text-white">
                      {team.tag}
                    </div>
                    <div className="flex-1 min-w-0">
                      <p className="text-white truncate">{team.name}</p>
                      <p className="text-xs text-gray-400 line-clamp-2">
                        {team.description}
                      </p>
                    </div>
                  </li>
                ))}
              </ul>
            </Card>

            {/* Upcoming races */}
            <Card className="bg-iron-gray/80">
              <div className="flex items-baseline justify-between mb-4">
                <h3 className="text-sm font-semibold text-white">Upcoming races</h3>
                <Button
                  as="a"
                  href="/races"
                  variant="secondary"
                  className="text-[11px] px-3 py-1.5"
                >
                  View schedule
                </Button>
              </div>
              {upcomingRaces.length === 0 ? (
                <p className="text-xs text-gray-400">
                  No races scheduled in this demo snapshot.
                </p>
              ) : (
                <ul className="space-y-3 text-sm">
                  {upcomingRaces.map(race => (
                    <li key={race.id} className="flex items-start justify-between gap-3">
                      <div className="flex-1 min-w-0">
                        <p className="text-white truncate">{race.track}</p>
                        <p className="text-xs text-gray-400 truncate">{race.car}</p>
                      </div>
                      <div className="text-right text-xs text-gray-500 whitespace-nowrap">
                        {race.scheduledAt.toLocaleDateString(undefined, {
                          month: 'short',
                          day: 'numeric'
                        })}
                      </div>
                    </li>
                  ))}
                </ul>
              )}
            </Card>
          </div>
        </section>
      )}

      <DiscordCTA />
      <FAQ />
      <Footer />
    </main>
  );
}