import { useEffect, useState } from 'react';
import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { 
  Shield, AlertTriangle, Activity, TrendingUp, TrendingDown, 
  ExternalLink, RefreshCw, Clock, Globe, Server, Users,
  CheckCircle, XCircle, AlertCircle, Eye, Lock, Wifi, Zap,
  Info, Code, Database
} from 'lucide-react';
import { useSecuritySimulation, SecurityEvent } from '@/hooks/useSecuritySimulation';
import { WidgetSchemaViewer } from './WidgetSchemaViewer';
import { widgetRegistry } from '@/lib/widgetRegistry';

interface WidgetDetailModalProps {
  isOpen: boolean;
  onClose: () => void;
  widget: {
    id: string;
    name: string;
    category: string;
    icon: React.ElementType;
    component: React.ReactNode;
  } | null;
}

// Widget descriptions
const widgetDescriptions: Record<string, string> = {
  'soc-dashboard': 'Security Operations Center dashboard viser real-time oversigt over alle sikkerhedshændelser, trusler og systemstatus på tværs af infrastrukturen.',
  'threat-map': 'Geografisk visualisering af aktive cyberangreb og trusselsaktivitet i realtid. Viser angrebskilder, mål og angrebstyper.',
  'malware-detection': 'Real-time malware detektion og klassificering. Overvåger alle endpoints og netværkstrafik for kendte og ukendte trusler.',
  'intrusion-detection': 'Intrusion Detection System (IDS) overvåger netværkstrafik for mistænkelig aktivitet og kendte angrebsmønstre.',
  'ddos-monitor': 'DDoS beskyttelse og monitoring. Overvåger båndbredde, pakkerater og anvender automatisk mitigation ved angreb.',
  'phishing-detector': 'Email sikkerhed med avanceret phishing detektion, URL analyse og attachment sandboxing.',
  'dark-web-monitor': 'Overvåger dark web forums, markedspladser og paste sites for lækkede credentials og virksomhedsdata.',
  'zero-day-alert': 'Overvåger for zero-day sårbarheder og nye CVEs der påvirker jeres infrastruktur.',
  'threat-level': 'Samlet trusselsniveau baseret på global threat intelligence, interne alerts og systemstatus.',
  'firewall': 'Next-generation firewall status med deep packet inspection, application control og intrusion prevention.',
  'siem-alerts': 'Security Information and Event Management - korrelerer logs og events på tværs af hele infrastrukturen.',
  'waf-status': 'Web Application Firewall beskytter web apps mod OWASP Top 10 og avancerede angreb.',
  'vpn-status': 'VPN gateway status og connected users. Overvåger tunnels, performance og sikkerhed.',
  'security-alerts': 'Samlet oversigt over alle kritiske sikkerhedsadvarsler der kræver øjeblikkelig handling.',
};

const widgetActions: Record<string, string[]> = {
  'soc-dashboard': ['Eskalér til Tier 2', 'Bloker IP', 'Kør forensic scan'],
  'threat-map': ['Aktivér GeoBlock', 'Rate Limiting', 'Kontakt ISP'],
  'malware-detection': ['Isolér Endpoint', 'Kør Full Scan', 'Opdater Signatures'],
  'intrusion-detection': ['Bloker Kilde IP', 'Opdater IDS Regler', 'Eksporter PCAP'],
  'ddos-monitor': ['Aktivér Scrubbing', 'Whitelist IPs', 'Kontakt Upstream'],
  'phishing-detector': ['Rapporter til CERT', 'Block Domain', 'Notify User'],
  'dark-web-monitor': ['Force Password Reset', 'Notify Users', 'Enable MFA'],
  'firewall': ['View Blocked IPs', 'Update Rules', 'Export Logs'],
  'vpn-status': ['Disconnect User', 'View Sessions', 'Rotate Keys'],
};

// Type for metrics
type MetricStatus = 'good' | 'warning' | 'critical';
type MetricTrend = 'up' | 'down' | 'stable';
interface DynamicMetric {
  label: string;
  value: string;
  status?: MetricStatus;
  trend?: MetricTrend;
}

export const WidgetDetailModal = ({ isOpen, onClose, widget }: WidgetDetailModalProps) => {
  const simulation = useSecuritySimulation(1500);
  const [pulseMetric, setPulseMetric] = useState<number | null>(null);

  // Pulse effect when metrics update
  useEffect(() => {
    if (isOpen) {
      const randomMetric = Math.floor(Math.random() * 4);
      setPulseMetric(randomMetric);
      const timeout = setTimeout(() => setPulseMetric(null), 500);
      return () => clearTimeout(timeout);
    }
  }, [simulation.socMetrics.activeIncidents, simulation.threatData.blockedAttacks, isOpen]);

  if (!widget) return null;

  const Icon = widget.icon;
  const description = widgetDescriptions[widget.id] || 'Dette sikkerhedsmodul overvåger og beskytter din infrastruktur i realtid.';
  const actions = widgetActions[widget.id] || ['View Details', 'Configure', 'Export Report'];

  // Helper to get status
  const getStatus = (condition: boolean, ifTrue: MetricStatus, ifFalse: MetricStatus): MetricStatus => 
    condition ? ifTrue : ifFalse;

  // Generate dynamic metrics based on widget type
  const getDynamicMetrics = (): DynamicMetric[] => {
    switch (widget.id) {
      case 'soc-dashboard':
        return [
          { label: 'Aktive Incidents', value: String(simulation.socMetrics.activeIncidents), status: getStatus(simulation.socMetrics.activeIncidents > 3, 'critical', 'warning') },
          { label: 'Løste (24h)', value: String(simulation.socMetrics.resolvedToday), status: 'good' as MetricStatus },
          { label: 'MTTD', value: `${simulation.socMetrics.mttd} min`, trend: 'down' as MetricTrend },
          { label: 'MTTR', value: `${simulation.socMetrics.mttr} min`, trend: 'down' as MetricTrend },
        ];
      case 'threat-map':
        return [
          { label: 'Live Angreb', value: String(simulation.liveAttacks), status: 'warning' as MetricStatus },
          { label: 'Blokerede IPs', value: simulation.networkMetrics.blockedIPs.toLocaleString(), status: 'good' as MetricStatus },
          { label: 'Top Kilde', value: 'CN (34%)', status: 'warning' as MetricStatus },
          { label: 'Traffic', value: `${simulation.networkMetrics.inboundGbps} Gbps`, trend: 'stable' as MetricTrend },
        ];
      case 'malware-detection':
        return [
          { label: 'Detekteret (24h)', value: String(simulation.malwareMetrics.detected24h), status: 'warning' as MetricStatus },
          { label: 'Ransomware', value: String(simulation.malwareMetrics.ransomware), status: getStatus(simulation.malwareMetrics.ransomware > 2, 'critical', 'warning') },
          { label: 'Trojans', value: String(simulation.malwareMetrics.trojans), status: 'warning' as MetricStatus },
          { label: 'Quarantined', value: String(simulation.malwareMetrics.quarantined), status: 'good' as MetricStatus },
        ];
      case 'firewall':
        return [
          { label: 'Status', value: simulation.firewallMetrics.status.toUpperCase(), status: 'good' as MetricStatus },
          { label: 'Blocked (24h)', value: simulation.firewallMetrics.blocked24h.toLocaleString(), status: 'good' as MetricStatus },
          { label: 'Allowed', value: simulation.firewallMetrics.allowed24h.toLocaleString(), trend: 'stable' as MetricTrend },
          { label: 'Rules', value: simulation.firewallMetrics.rulesActive.toLocaleString(), status: 'good' as MetricStatus },
        ];
      case 'ddos-monitor': {
        const ddosStatus: MetricStatus = simulation.networkMetrics.ddosStatus === 'normal' ? 'good' : simulation.networkMetrics.ddosStatus === 'elevated' ? 'warning' : 'critical';
        return [
          { label: 'Status', value: simulation.networkMetrics.ddosStatus.toUpperCase(), status: ddosStatus },
          { label: 'Inbound', value: `${simulation.networkMetrics.inboundGbps} Gbps`, trend: 'stable' as MetricTrend },
          { label: 'Packets/sec', value: `${(simulation.networkMetrics.packetsPerSec / 1000000).toFixed(2)}M`, trend: 'stable' as MetricTrend },
          { label: 'Connections', value: simulation.networkMetrics.activeConnections.toLocaleString(), trend: 'up' as MetricTrend },
        ];
      }
      case 'vpn-status':
        return [
          { label: 'Status', value: 'CONNECTED', status: 'good' as MetricStatus },
          { label: 'Users Online', value: String(simulation.vpnUsers), trend: 'stable' as MetricTrend },
          { label: 'Bandwidth', value: `${simulation.networkMetrics.outboundGbps} Gbps`, trend: 'up' as MetricTrend },
          { label: 'Tunnels', value: '12', status: 'good' as MetricStatus },
        ];
      case 'threat-level': {
        const threatStatus: MetricStatus = simulation.threatData.level === 'LOW' ? 'good' : simulation.threatData.level === 'MEDIUM' ? 'warning' : 'critical';
        const threatTrend: MetricTrend = simulation.threatData.score > 50 ? 'up' : 'down';
        return [
          { label: 'Threat Level', value: simulation.threatData.level, status: threatStatus },
          { label: 'Risk Score', value: `${simulation.threatData.score}/100`, trend: threatTrend },
          { label: 'Active Threats', value: String(simulation.threatData.activeThreats), status: getStatus(simulation.threatData.activeThreats > 2, 'warning', 'good') },
          { label: 'Blocked', value: simulation.threatData.blockedAttacks.toLocaleString(), status: 'good' as MetricStatus },
        ];
      }
      case 'security-alerts':
        return [
          { label: 'Active Alerts', value: String(simulation.socMetrics.activeIncidents + simulation.socMetrics.criticalAlerts), status: 'critical' as MetricStatus },
          { label: 'Critical', value: String(simulation.socMetrics.criticalAlerts), status: 'critical' as MetricStatus },
          { label: 'Warning', value: String(simulation.socMetrics.warningAlerts), status: 'warning' as MetricStatus },
          { label: 'Info', value: String(simulation.socMetrics.infoAlerts), status: 'good' as MetricStatus },
        ];
      default:
        return [
          { label: 'Status', value: 'ACTIVE', status: 'good' as MetricStatus },
          { label: 'Last Check', value: '< 1 min', trend: 'stable' as MetricTrend },
          { label: 'Health', value: `${simulation.complianceScore}%`, status: 'good' as MetricStatus },
          { label: 'Uptime', value: '99.9%', status: 'good' as MetricStatus },
        ];
    }
  };

  const metrics = getDynamicMetrics();

  const getStatusColor = (status?: MetricStatus) => {
    switch (status) {
      case 'good': return 'text-green-400';
      case 'warning': return 'text-yellow-400';
      case 'critical': return 'text-red-400';
      default: return 'text-primary';
    }
  };

  const getSeverityBadge = (severity: 'info' | 'warning' | 'critical') => {
    switch (severity) {
      case 'critical': return <Badge variant="destructive" className="text-[8px] px-1 py-0 animate-pulse">CRITICAL</Badge>;
      case 'warning': return <Badge variant="secondary" className="text-[8px] px-1 py-0 bg-yellow-500/20 text-yellow-400">WARNING</Badge>;
      default: return <Badge variant="secondary" className="text-[8px] px-1 py-0 bg-blue-500/20 text-blue-400">INFO</Badge>;
    }
  };

  const getTrendIcon = (trend?: 'up' | 'down' | 'stable') => {
    switch (trend) {
      case 'up': return <TrendingUp className="w-3 h-3 text-green-400" />;
      case 'down': return <TrendingDown className="w-3 h-3 text-red-400" />;
      default: return <Activity className="w-3 h-3 text-muted-foreground" />;
    }
  };

  return (
    <Dialog open={isOpen} onOpenChange={onClose}>
      <DialogContent className="max-w-2xl bg-background/95 backdrop-blur-xl border-primary/30">
        <DialogHeader>
          <DialogTitle className="flex items-center gap-3 font-mono text-primary">
            <div className="p-2 bg-primary/10 rounded-lg relative">
              <Icon className="w-5 h-5" />
              <div className="absolute -top-1 -right-1 w-2 h-2 bg-green-500 rounded-full animate-pulse" />
            </div>
            <div className="flex-1">
              <span className="text-lg">{widget.name}</span>
              <Badge variant="outline" className="ml-3 text-[10px]">{widget.category.toUpperCase()}</Badge>
            </div>
            <div className="flex items-center gap-2 text-xs text-green-400">
              <Zap className="w-3 h-3" />
              <span className="font-mono">LIVE</span>
            </div>
          </DialogTitle>
        </DialogHeader>

        {/* Description */}
        <p className="text-sm text-muted-foreground leading-relaxed pt-2">
          {description}
        </p>

        <Tabs defaultValue="live" className="w-full">
          <TabsList className="grid w-full grid-cols-2 bg-secondary/30">
            <TabsTrigger value="live" className="font-mono text-xs gap-2">
              <Zap className="w-3 h-3" />
              LIVE DATA
            </TabsTrigger>
            <TabsTrigger value="schema" className="font-mono text-xs gap-2">
              <Code className="w-3 h-3" />
              SCHEMA
            </TabsTrigger>
          </TabsList>

          <TabsContent value="live" className="space-y-6 pt-4">
            {/* Widget Preview */}
            <div className="bg-secondary/20 rounded-lg p-4 border border-border/50 relative overflow-hidden">
              <div className="absolute top-2 right-2 flex items-center gap-1 text-[10px] text-green-400 font-mono">
                <div className="w-1.5 h-1.5 bg-green-400 rounded-full animate-pulse" />
                REAL-TIME
              </div>
              <div className="h-32">
                {widget.component}
              </div>
            </div>

            {/* Metrics Grid - Live updating */}
            <div>
              <h4 className="text-xs font-mono text-muted-foreground mb-3 flex items-center gap-2">
                <Activity className="w-3 h-3" />
                KEY METRICS
                <span className="text-green-400 text-[10px] ml-auto">● Live</span>
              </h4>
              <div className="grid grid-cols-2 sm:grid-cols-4 gap-3">
                {metrics.map((metric, i) => (
                  <div 
                    key={i} 
                    className={`bg-secondary/30 rounded-lg p-3 border transition-all duration-300 ${
                      pulseMetric === i ? 'border-primary/50 shadow-[0_0_10px_rgba(var(--primary),0.3)]' : 'border-border/30'
                    }`}
                  >
                    <div className="text-[10px] text-muted-foreground mb-1">{metric.label}</div>
                    <div className="flex items-center justify-between">
                      <span className={`text-lg font-mono transition-all duration-300 ${getStatusColor(metric.status)}`}>
                        {metric.value}
                      </span>
                      {metric.trend && getTrendIcon(metric.trend)}
                    </div>
                  </div>
                ))}
              </div>
            </div>

            {/* Recent Events - Live feed */}
            <div>
              <h4 className="text-xs font-mono text-muted-foreground mb-3 flex items-center gap-2">
                <Clock className="w-3 h-3" />
                LIVE EVENT FEED
                <span className="text-green-400 text-[10px] ml-auto">● Live</span>
              </h4>
              <div className="space-y-2 max-h-40 overflow-y-auto">
                {simulation.events.slice(0, 5).map((event, i) => (
                  <div 
                    key={event.id} 
                    className={`flex items-center gap-3 bg-secondary/20 rounded-lg p-2 border border-border/30 transition-all duration-500 ${
                      i === 0 ? 'animate-pulse border-primary/30' : ''
                    }`}
                  >
                    <span className="text-[10px] font-mono text-primary/70 w-16">{event.time}</span>
                    <span className="flex-1 text-xs text-muted-foreground truncate">{event.event}</span>
                    {getSeverityBadge(event.severity)}
                  </div>
                ))}
              </div>
            </div>

            {/* Quick Actions */}
            <div>
              <h4 className="text-xs font-mono text-muted-foreground mb-3 flex items-center gap-2">
                <Wifi className="w-3 h-3" />
                QUICK ACTIONS
              </h4>
              <div className="flex flex-wrap gap-2">
                {actions.map((action, i) => (
                  <Button key={i} variant="outline" size="sm" className="text-xs font-mono gap-2 hover:bg-primary/10 hover:border-primary/50 transition-colors">
                    {action}
                    <ExternalLink className="w-3 h-3" />
                  </Button>
                ))}
                <Button variant="ghost" size="sm" className="text-xs font-mono gap-2 text-green-400 hover:text-green-300">
                  <RefreshCw className="w-3 h-3 animate-spin" style={{ animationDuration: '3s' }} />
                  Auto-Refresh ON
                </Button>
              </div>
            </div>
          </TabsContent>

          <TabsContent value="schema" className="pt-4">
            {/* Widget Schema / Metadata */}
            <div className="space-y-4">
              <div className="flex items-center gap-2 text-xs text-muted-foreground mb-2">
                <Database className="w-3 h-3" />
                <span>Widget metadata definerer hvad denne widget kan og kræver i økosystemet</span>
              </div>
              
              {widgetRegistry.get(widget.id) ? (
                <WidgetSchemaViewer widgetId={widget.id} />
              ) : (
                <div className="p-6 border border-dashed border-border/50 rounded-lg text-center">
                  <Info className="w-8 h-8 text-muted-foreground mx-auto mb-3" />
                  <p className="text-sm text-muted-foreground">
                    Schema metadata er endnu ikke defineret for denne widget.
                  </p>
                  <p className="text-xs text-muted-foreground/70 mt-2">
                    Tilføj widget til registret for at aktivere økosystem-integration.
                  </p>
                </div>
              )}

              {widgetRegistry.get(widget.id) && (
                <div className="mt-4 p-3 bg-primary/5 rounded-lg border border-primary/20">
                  <h5 className="text-xs font-mono text-primary mb-2 flex items-center gap-2">
                    <Globe className="w-3 h-3" />
                    KOMPATIBLE WIDGETS
                  </h5>
                  <div className="flex flex-wrap gap-2">
                    {widgetRegistry.findCompatible(widget.id).slice(0, 5).map(compatible => (
                      <Badge key={compatible.id} variant="secondary" className="text-[10px]">
                        {compatible.name}
                      </Badge>
                    ))}
                    {widgetRegistry.findCompatible(widget.id).length === 0 && (
                      <span className="text-xs text-muted-foreground">Ingen kompatible widgets fundet</span>
                    )}
                  </div>
                </div>
              )}
            </div>
          </TabsContent>
        </Tabs>
      </DialogContent>
    </Dialog>
  );
};

export default WidgetDetailModal;