import { useSeoMeta } from '@unhead/react';
import { Layout } from '@/components/Layout';
import { WalletModal } from '@/components/WalletModal';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { useWallet } from '@/hooks/useWallet';
import { useNWC } from '@/hooks/useNWCContext';
import { useCurrentUser } from '@/hooks/useCurrentUser';
import { useCashu } from '@/hooks/wallet/useCashu';
import { useSatsToUsd } from '@/hooks/useExchangeRate';
import { LoginArea } from '@/components/auth/LoginArea';
import { CashuWalletCard } from '@/components/wallet/CashuWalletCard';
import { LightningPrivacyTips } from '@/components/wallet/LightningPrivacyTips';
import { WalletComparisonGuide } from '@/components/wallet/WalletComparisonGuide';
import {
  Wallet,
  Zap,
  Settings,
  CheckCircle,
  XCircle,
  ExternalLink,
  Globe,
  WalletMinimal,
  Info,
  Nut,
} from 'lucide-react';

function WalletStatusCard() {
  const { webln } = useWallet();
  const { connections } = useNWC();
  const { totalBalance: cashuBalance, isInitialized: hasCashu } = useCashu();
  const cashuUsd = useSatsToUsd(cashuBalance);
  const hasNWC = connections.length > 0 && connections.some(c => c.isConnected);
  const isReady = webln || hasNWC || hasCashu;

  return (
    <Card className={isReady ? 'border-primary/30' : ''}>
      <CardHeader className="pb-3">
        <div className="flex items-center justify-between">
          <CardTitle className="flex items-center gap-2">
            <Wallet className="h-5 w-5 text-primary" />
            Wallet Status
          </CardTitle>
          <Badge variant={isReady ? 'default' : 'secondary'}>
            {isReady ? 'Ready' : 'Not Connected'}
          </Badge>
        </div>
        <CardDescription>
          {isReady
            ? 'Your wallet is connected and ready to send zaps!'
            : 'Connect a wallet to enable Lightning zaps'}
        </CardDescription>
      </CardHeader>
      <CardContent className="space-y-4">
        {/* Cashu Wallet Status */}
        <div className="flex items-center justify-between p-3 bg-muted/50 rounded-lg">
          <div className="flex items-center gap-3">
            <Nut className="h-5 w-5 text-orange-500" />
            <div>
              <p className="font-medium">Cashu Wallet</p>
              <p className="text-sm text-muted-foreground">
                {hasCashu && cashuBalance > 0
                  ? `${cashuBalance.toLocaleString()} sats${cashuUsd ? ` (~$${cashuUsd.toFixed(2)})` : ''}`
                  : 'Built-in ecash wallet'}
              </p>
            </div>
          </div>
          {hasCashu ? (
            <CheckCircle className="h-5 w-5 text-green-500" />
          ) : (
            <XCircle className="h-5 w-5 text-muted-foreground" />
          )}
        </div>

        {/* WebLN Status */}
        <div className="flex items-center justify-between p-3 bg-muted/50 rounded-lg">
          <div className="flex items-center gap-3">
            <Globe className="h-5 w-5 text-muted-foreground" />
            <div>
              <p className="font-medium">WebLN</p>
              <p className="text-sm text-muted-foreground">Browser extension wallet</p>
            </div>
          </div>
          {webln ? (
            <CheckCircle className="h-5 w-5 text-green-500" />
          ) : (
            <XCircle className="h-5 w-5 text-muted-foreground" />
          )}
        </div>

        {/* NWC Status */}
        <div className="flex items-center justify-between p-3 bg-muted/50 rounded-lg">
          <div className="flex items-center gap-3">
            <WalletMinimal className="h-5 w-5 text-muted-foreground" />
            <div>
              <p className="font-medium">Nostr Wallet Connect</p>
              <p className="text-sm text-muted-foreground">
                {connections.length > 0
                  ? `${connections.length} wallet${connections.length !== 1 ? 's' : ''} connected`
                  : 'Remote wallet connection'}
              </p>
            </div>
          </div>
          {hasNWC ? (
            <CheckCircle className="h-5 w-5 text-green-500" />
          ) : (
            <XCircle className="h-5 w-5 text-muted-foreground" />
          )}
        </div>

        <WalletModal>
          <Button className="w-full gap-2">
            <Settings className="h-4 w-4" />
            Manage Wallets
          </Button>
        </WalletModal>
      </CardContent>
    </Card>
  );
}

function ZapsInfoCard() {
  return (
    <Card>
      <CardHeader>
        <CardTitle className="flex items-center gap-2">
          <Zap className="h-5 w-5 text-amber-500" />
          What are Zaps?
        </CardTitle>
      </CardHeader>
      <CardContent className="space-y-4">
        <p className="text-muted-foreground">
          Zaps are Lightning Network micropayments on Nostr. They allow you to send
          satoshis (sats) instantly to other users as a way of tipping, thanking, or
          supporting their content.
        </p>

        <div className="space-y-3">
          <div className="flex items-start gap-3 p-3 bg-muted/50 rounded-lg">
            <div className="w-8 h-8 rounded-full bg-primary/10 flex items-center justify-center flex-shrink-0">
              <span className="text-lg">⚡</span>
            </div>
            <div>
              <p className="font-medium">Instant</p>
              <p className="text-sm text-muted-foreground">
                Payments settle in seconds over the Lightning Network
              </p>
            </div>
          </div>

          <div className="flex items-start gap-3 p-3 bg-muted/50 rounded-lg">
            <div className="w-8 h-8 rounded-full bg-primary/10 flex items-center justify-center flex-shrink-0">
              <span className="text-lg">🔐</span>
            </div>
            <div>
              <p className="font-medium">Flexible custody</p>
              <p className="text-sm text-muted-foreground">
                Use your own wallet (self-custodial) or a custodial service - your choice
              </p>
            </div>
          </div>

          <div className="flex items-start gap-3 p-3 bg-muted/50 rounded-lg">
            <div className="w-8 h-8 rounded-full bg-orange-500/10 flex items-center justify-center flex-shrink-0">
              <span className="text-lg">🥜</span>
            </div>
            <div>
              <p className="font-medium">NutZaps for privacy</p>
              <p className="text-sm text-muted-foreground">
                Use Cashu ecash for private zaps - mints can't see who pays whom
              </p>
            </div>
          </div>

          <div className="flex items-start gap-3 p-3 bg-muted/50 rounded-lg">
            <div className="w-8 h-8 rounded-full bg-primary/10 flex items-center justify-center flex-shrink-0">
              <span className="text-lg">💜</span>
            </div>
            <div>
              <p className="font-medium">Value for value</p>
              <p className="text-sm text-muted-foreground">
                Support creators directly for content you appreciate
              </p>
            </div>
          </div>
        </div>
      </CardContent>
    </Card>
  );
}

function WalletResourcesCard() {
  const walletResources = [
    {
      name: 'Alby',
      description: 'Browser extension wallet with WebLN + NWC support',
      url: 'https://getalby.com',
      type: 'WebLN',
    },
    {
      name: 'Minibits',
      description: 'Mobile Cashu wallet with NWC support',
      url: 'https://www.minibits.cash',
      type: 'NWC',
    },
    {
      name: 'Zeus',
      description: 'Self-custodial mobile Lightning wallet',
      url: 'https://zeusln.com',
      type: 'NWC',
    },
    {
      name: 'Coinos',
      description: 'Web-based Lightning wallet, works on any device',
      url: 'https://coinos.io',
      type: 'NWC',
    },
  ];

  return (
    <Card>
      <CardHeader>
        <CardTitle className="flex items-center gap-2">
          <Info className="h-5 w-5" />
          Recommended Wallets
        </CardTitle>
        <CardDescription>
          Get started with one of these Lightning wallets
        </CardDescription>
      </CardHeader>
      <CardContent className="space-y-4">
        <div className="grid gap-3">
          {walletResources.map((wallet) => (
            <a
              key={wallet.name}
              href={wallet.url}
              target="_blank"
              rel="noopener noreferrer"
              className="flex items-center justify-between p-3 bg-muted/50 rounded-lg hover:bg-muted transition-colors group"
            >
              <div>
                <div className="flex items-center gap-2">
                  <p className="font-medium group-hover:text-primary transition-colors">
                    {wallet.name}
                  </p>
                  <Badge variant="outline" className="text-xs">
                    {wallet.type}
                  </Badge>
                </div>
                <p className="text-sm text-muted-foreground">{wallet.description}</p>
              </div>
              <ExternalLink className="h-4 w-4 text-muted-foreground group-hover:text-primary transition-colors" />
            </a>
          ))}
        </div>
        
        <a
          href="https://planb.academy/en/tutorials/wallet"
          target="_blank"
          rel="noopener noreferrer"
          className="flex items-center gap-2 text-sm text-orange-400 hover:text-orange-300 transition-colors"
        >
          <ExternalLink className="h-4 w-4" />
          <span>Want to learn more? Check out Plan B Academy's wallet guides</span>
        </a>
      </CardContent>
    </Card>
  );
}

function NotLoggedInCard() {
  return (
    <Card className="border-dashed">
      <CardContent className="py-12 text-center">
        <Wallet className="h-12 w-12 mx-auto mb-4 text-muted-foreground/50" />
        <h3 className="text-lg font-medium mb-2">Login Required</h3>
        <p className="text-muted-foreground max-w-md mx-auto mb-6">
          Log in with your Nostr account to connect your Lightning wallet and start zapping.
        </p>
        <LoginArea className="justify-center" />
      </CardContent>
    </Card>
  );
}

export default function WalletPage() {
  useSeoMeta({
    title: 'Wallet - SkateSpots',
    description: 'Connect your Lightning wallet to send zaps to skaters and spot creators.',
  });

  const { user } = useCurrentUser();

  return (
    <Layout>
      <div className="container px-4 py-6 md:py-8">
        {/* Header */}
        <div className="mb-6 md:mb-8">
          <h1 className="text-2xl md:text-3xl font-bold">Wallet</h1>
          <p className="text-muted-foreground mt-1 text-sm md:text-base">
            Manage your Bitcoin and send zaps to skaters and creators
          </p>
        </div>

        {user ? (
          <div className="space-y-4 md:space-y-6">
            {/* Wallet Comparison Guide */}
            <WalletComparisonGuide />

            <Tabs defaultValue="cashu" className="w-full">
              <TabsList className="grid w-full grid-cols-2 mb-4 md:mb-6 h-auto">
                <TabsTrigger value="cashu" className="gap-1.5 py-2.5 text-sm">
                  <Nut className="h-4 w-4 flex-shrink-0" />
                  <span>Cashu Wallet</span>
                </TabsTrigger>
                <TabsTrigger value="lightning" className="gap-1.5 py-2.5 text-sm">
                  <Zap className="h-4 w-4 flex-shrink-0" />
                  <span>Lightning</span>
                </TabsTrigger>
              </TabsList>

            <TabsContent value="cashu" className="space-y-6">
              <CashuWalletCard />
            </TabsContent>

            <TabsContent value="lightning" className="space-y-6">
              {/* Privacy Tips at the top */}
              <LightningPrivacyTips />
              
              <div className="grid gap-6 lg:grid-cols-2">
                <div className="space-y-6">
                  <WalletStatusCard />
                  <WalletResourcesCard />
                </div>
                <div>
                  <ZapsInfoCard />
                </div>
              </div>
            </TabsContent>
            </Tabs>
          </div>
        ) : (
          <div className="max-w-xl mx-auto">
            <NotLoggedInCard />
            <div className="mt-6">
              <ZapsInfoCard />
            </div>
          </div>
        )}
      </div>
    </Layout>
  );
}