'use client'

import { useEffect, useState } from 'react'
import { useRouter, useSearchParams } from 'next/navigation'
import { CommandCenterLayout } from '@/components/CommandCenterLayout'
import { PageContainer } from '@/components/PremiumTable'
import { useStore } from '@/lib/store'
import {
  CheckCircle,
  Zap,
  Crown,
  ArrowRight,
  Eye,
  Store,
  Bell,
  BarChart3,
  Sparkles,
  TrendingUp,
} from 'lucide-react'
import Link from 'next/link'
import clsx from 'clsx'

const planDetails = {
  trader: {
    name: 'Trader',
    icon: TrendingUp,
    color: 'text-accent',
    bgColor: 'bg-accent/10',
    features: [
      { icon: Eye, text: '50 domains in watchlist', description: 'Track up to 50 domains at once' },
      { icon: Zap, text: 'Hourly availability checks', description: '24x faster than Scout' },
      { icon: Store, text: '10 For Sale listings', description: 'List your domains on the marketplace' },
      { icon: Bell, text: '5 Sniper Alerts', description: 'Get notified when specific domains drop' },
      { icon: BarChart3, text: 'Deal scores & valuations', description: 'Know what domains are worth' },
    ],
    nextSteps: [
      { href: '/command/watchlist', label: 'Add domains to watchlist', icon: Eye },
      { href: '/command/alerts', label: 'Set up Sniper Alerts', icon: Bell },
      { href: '/command/portfolio', label: 'Track your portfolio', icon: BarChart3 },
    ],
  },
  tycoon: {
    name: 'Tycoon',
    icon: Crown,
    color: 'text-amber-400',
    bgColor: 'bg-amber-400/10',
    features: [
      { icon: Eye, text: '500 domains in watchlist', description: 'Massive tracking capacity' },
      { icon: Zap, text: 'Real-time checks (10 min)', description: 'Never miss a drop' },
      { icon: Store, text: '50 For Sale listings', description: 'Full marketplace access' },
      { icon: Bell, text: 'Unlimited Sniper Alerts', description: 'Set as many as you need' },
      { icon: Sparkles, text: 'SEO Juice Detector', description: 'Find domains with backlinks' },
    ],
    nextSteps: [
      { href: '/command/watchlist', label: 'Add domains to watchlist', icon: Eye },
      { href: '/command/seo', label: 'Analyze SEO metrics', icon: Sparkles },
      { href: '/command/alerts', label: 'Create Sniper Alerts', icon: Bell },
    ],
  },
}

export default function WelcomePage() {
  const router = useRouter()
  const searchParams = useSearchParams()
  const { fetchSubscription, checkAuth } = useStore()
  const [loading, setLoading] = useState(true)
  const [showConfetti, setShowConfetti] = useState(true)
  
  const planId = searchParams.get('plan') as 'trader' | 'tycoon' | null
  const plan = planId && planDetails[planId] ? planDetails[planId] : planDetails.trader

  useEffect(() => {
    const init = async () => {
      await checkAuth()
      await fetchSubscription()
      setLoading(false)
    }
    init()
    
    // Hide confetti after animation
    const timer = setTimeout(() => setShowConfetti(false), 3000)
    return () => clearTimeout(timer)
  }, [checkAuth, fetchSubscription])

  if (loading) {
    return (
      <CommandCenterLayout title="Welcome" subtitle="Loading your new plan...">
        <PageContainer>
          <div className="flex items-center justify-center py-20">
            <div className="w-8 h-8 border-2 border-accent border-t-transparent rounded-full animate-spin" />
          </div>
        </PageContainer>
      </CommandCenterLayout>
    )
  }

  return (
    <CommandCenterLayout title="Welcome" subtitle="Your upgrade is complete">
      <PageContainer>
        {/* Confetti Effect */}
        {showConfetti && (
          <div className="fixed inset-0 pointer-events-none z-50 overflow-hidden">
            {Array.from({ length: 50 }).map((_, i) => (
              <div
                key={i}
                className="absolute w-2 h-2 rounded-full animate-[confetti_3s_ease-out_forwards]"
                style={{
                  left: `${Math.random() * 100}%`,
                  top: '-10px',
                  backgroundColor: ['#10b981', '#f59e0b', '#3b82f6', '#ec4899', '#8b5cf6'][Math.floor(Math.random() * 5)],
                  animationDelay: `${Math.random() * 0.5}s`,
                }}
              />
            ))}
          </div>
        )}

        {/* Success Header */}
        <div className="text-center mb-12">
          <div className={clsx(
            "inline-flex items-center justify-center w-20 h-20 rounded-full mb-6",
            plan.bgColor
          )}>
            <CheckCircle className={clsx("w-10 h-10", plan.color)} />
          </div>
          
          <h1 className="text-3xl sm:text-4xl font-semibold text-foreground mb-3">
            Welcome to {plan.name}!
          </h1>
          <p className="text-lg text-foreground-muted max-w-lg mx-auto">
            Your payment was successful. You now have access to all {plan.name} features.
          </p>
        </div>

        {/* Features Unlocked */}
        <div className="mb-12">
          <h2 className="text-lg font-semibold text-foreground mb-6 text-center">
            Features Unlocked
          </h2>
          <div className="grid sm:grid-cols-2 lg:grid-cols-3 gap-4">
            {plan.features.map((feature, i) => (
              <div 
                key={i}
                className="p-5 bg-background-secondary/50 border border-border/50 rounded-xl
                           animate-slide-up"
                style={{ animationDelay: `${i * 100}ms` }}
              >
                <div className="flex items-start gap-4">
                  <div className={clsx("w-10 h-10 rounded-xl flex items-center justify-center shrink-0", plan.bgColor)}>
                    <feature.icon className={clsx("w-5 h-5", plan.color)} />
                  </div>
                  <div>
                    <p className="font-medium text-foreground">{feature.text}</p>
                    <p className="text-sm text-foreground-muted mt-1">{feature.description}</p>
                  </div>
                </div>
              </div>
            ))}
          </div>
        </div>

        {/* Next Steps */}
        <div className="mb-12">
          <h2 className="text-lg font-semibold text-foreground mb-6 text-center">
            Get Started
          </h2>
          <div className="max-w-2xl mx-auto space-y-3">
            {plan.nextSteps.map((step, i) => (
              <Link
                key={i}
                href={step.href}
                className="flex items-center justify-between p-5 bg-background-secondary/50 border border-border/50 rounded-xl
                           hover:border-accent/30 hover:bg-background-secondary transition-all group"
              >
                <div className="flex items-center gap-4">
                  <div className="w-10 h-10 rounded-xl bg-foreground/5 flex items-center justify-center
                                  group-hover:bg-accent/10 transition-colors">
                    <step.icon className="w-5 h-5 text-foreground-muted group-hover:text-accent transition-colors" />
                  </div>
                  <span className="font-medium text-foreground">{step.label}</span>
                </div>
                <ArrowRight className="w-5 h-5 text-foreground-subtle group-hover:text-accent transition-colors" />
              </Link>
            ))}
          </div>
        </div>

        {/* Go to Dashboard */}
        <div className="text-center">
          <Link
            href="/command/dashboard"
            className="inline-flex items-center gap-2 px-8 py-4 bg-accent text-background font-medium rounded-xl
                       hover:bg-accent-hover transition-all shadow-lg shadow-accent/20"
          >
            Go to Dashboard
            <ArrowRight className="w-4 h-4" />
          </Link>
          <p className="text-sm text-foreground-muted mt-4">
            Need help? Check out our <Link href="/docs" className="text-accent hover:underline">documentation</Link> or{' '}
            <Link href="mailto:support@pounce.ch" className="text-accent hover:underline">contact support</Link>.
          </p>
        </div>
      </PageContainer>

      {/* Custom CSS for confetti animation */}
      <style jsx>{`
        @keyframes confetti {
          0% {
            transform: translateY(0) rotate(0deg);
            opacity: 1;
          }
          100% {
            transform: translateY(100vh) rotate(720deg);
            opacity: 0;
          }
        }
      `}</style>
    </CommandCenterLayout>
  )
}

