'use client';

import { useState } from 'react';
import { ChevronDown, ChevronRight, User, Globe, Monitor, Cpu, Shield, Check, X, AlertTriangle } from 'lucide-react';

export interface SessionFingerprint {
  user_agent: string;
  platform: string;
  language: string;
  languages: string[];
  timezone: string;
  screen: { width: number; height: number; colorDepth: number };
  viewport: { width: number; height: number };
  webgl_vendor: string;
  webgl_renderer: string;
  canvas_fingerprint: string;
  hardware_concurrency: number;
  device_memory: number;
  bot_detection_tests: {
    webdriver_hidden: boolean;
    chrome_runtime: boolean;
    permissions_query: boolean;
  };
  captured_at: string;
}

interface SessionPanelProps {
  fingerprint: SessionFingerprint;
}

function BotTestIndicator({ passed, label }: { passed: boolean | null | undefined; label: string }) {
  if (passed === null || passed === undefined) {
    return (
      <div className="flex items-center gap-2 px-3 py-2 bg-yellow-900/30 border border-yellow-700/50 rounded-lg">
        <AlertTriangle className="w-4 h-4 text-yellow-500" />
        <span className="text-yellow-300 text-sm font-medium">{label}</span>
        <span className="ml-auto text-yellow-500 text-xs font-mono">UNKNOWN</span>
      </div>
    );
  }

  if (passed) {
    return (
      <div className="flex items-center gap-2 px-3 py-2 bg-green-900/30 border border-green-700/50 rounded-lg">
        <Check className="w-4 h-4 text-green-500" />
        <span className="text-green-300 text-sm font-medium">{label}</span>
        <span className="ml-auto text-green-500 text-xs font-mono">PASSED</span>
      </div>
    );
  }

  return (
    <div className="flex items-center gap-2 px-3 py-2 bg-red-900/30 border border-red-700/50 rounded-lg">
      <X className="w-4 h-4 text-red-500" />
      <span className="text-red-300 text-sm font-medium">{label}</span>
      <span className="ml-auto text-red-500 text-xs font-mono">FAILED</span>
    </div>
  );
}

function SectionHeader({ icon: Icon, title }: { icon: React.ElementType; title: string }) {
  return (
    <div className="flex items-center gap-2 mb-3 pb-2 border-b border-gray-700">
      <Icon className="w-4 h-4 text-blue-400" />
      <h4 className="text-sm font-semibold text-gray-300 uppercase tracking-wide">{title}</h4>
    </div>
  );
}

function DataRow({ label, value, mono = true }: { label: string; value: string | number; mono?: boolean }) {
  return (
    <div className="flex flex-col gap-0.5">
      <span className="text-xs text-gray-500 uppercase tracking-wide">{label}</span>
      <span className={`text-sm text-gray-200 ${mono ? 'font-mono' : ''} break-all`}>{value}</span>
    </div>
  );
}

export default function SessionPanel({ fingerprint }: SessionPanelProps) {
  const [isExpanded, setIsExpanded] = useState(false);

  // Calculate overall bot detection status
  const tests = fingerprint.bot_detection_tests;
  const testResults = [tests.webdriver_hidden, tests.chrome_runtime, tests.permissions_query];
  const passedCount = testResults.filter(t => t === true).length;
  const failedCount = testResults.filter(t => t === false).length;
  const unknownCount = testResults.filter(t => t === null || t === undefined).length;

  const overallStatus = failedCount > 0 ? 'warning' : unknownCount > 0 ? 'partial' : 'success';
  const statusColors = {
    success: 'bg-green-900/30 border-green-700/50 text-green-400',
    partial: 'bg-yellow-900/30 border-yellow-700/50 text-yellow-400',
    warning: 'bg-red-900/30 border-red-700/50 text-red-400',
  };

  return (
    <div className="bg-gray-800 border border-gray-700 rounded-lg overflow-hidden">
      {/* Collapsible Header */}
      <button
        onClick={() => setIsExpanded(!isExpanded)}
        className="w-full flex items-center justify-between px-4 py-3 bg-gray-800 hover:bg-gray-750 transition-colors"
      >
        <div className="flex items-center gap-3">
          {isExpanded ? (
            <ChevronDown className="w-5 h-5 text-gray-400" />
          ) : (
            <ChevronRight className="w-5 h-5 text-gray-400" />
          )}
          <Shield className="w-5 h-5 text-blue-400" />
          <span className="text-sm font-semibold text-gray-200">What Google Saw</span>
        </div>
        <div className={`flex items-center gap-2 px-2.5 py-1 rounded-full text-xs font-semibold border ${statusColors[overallStatus]}`}>
          {overallStatus === 'success' && <Check className="w-3 h-3" />}
          {overallStatus === 'partial' && <AlertTriangle className="w-3 h-3" />}
          {overallStatus === 'warning' && <X className="w-3 h-3" />}
          <span>
            {passedCount}/{testResults.length} Tests Passed
          </span>
        </div>
      </button>

      {/* Collapsible Content */}
      {isExpanded && (
        <div className="px-4 pb-4 border-t border-gray-700">
          <div className="grid grid-cols-1 md:grid-cols-2 gap-6 pt-4">
            {/* Identity Section */}
            <div className="space-y-3">
              <SectionHeader icon={User} title="Identity" />
              <div className="space-y-3 bg-gray-900/50 rounded-lg p-3">
                <DataRow label="User Agent" value={fingerprint.user_agent} />
                <DataRow label="Platform" value={fingerprint.platform} />
                <DataRow label="Primary Language" value={fingerprint.language} />
                <DataRow label="Languages" value={fingerprint.languages.join(', ')} />
              </div>
            </div>

            {/* Geolocation Section */}
            <div className="space-y-3">
              <SectionHeader icon={Globe} title="Geolocation" />
              <div className="space-y-3 bg-gray-900/50 rounded-lg p-3">
                <DataRow label="Timezone" value={fingerprint.timezone} />
                <DataRow label="Captured At" value={fingerprint.captured_at} />
              </div>
            </div>

            {/* Display Section */}
            <div className="space-y-3">
              <SectionHeader icon={Monitor} title="Display" />
              <div className="space-y-3 bg-gray-900/50 rounded-lg p-3">
                <DataRow
                  label="Screen Resolution"
                  value={`${fingerprint.screen.width} x ${fingerprint.screen.height}`}
                />
                <DataRow
                  label="Viewport Size"
                  value={`${fingerprint.viewport.width} x ${fingerprint.viewport.height}`}
                />
                <DataRow
                  label="Color Depth"
                  value={`${fingerprint.screen.colorDepth}-bit`}
                />
              </div>
            </div>

            {/* Hardware Section */}
            <div className="space-y-3">
              <SectionHeader icon={Cpu} title="Hardware" />
              <div className="space-y-3 bg-gray-900/50 rounded-lg p-3">
                <DataRow label="WebGL Vendor" value={fingerprint.webgl_vendor} />
                <DataRow label="WebGL Renderer" value={fingerprint.webgl_renderer} />
                <DataRow label="CPU Cores" value={fingerprint.hardware_concurrency} />
                <DataRow label="Device Memory" value={`${fingerprint.device_memory} GB`} />
                <DataRow label="Canvas Fingerprint" value={fingerprint.canvas_fingerprint} />
              </div>
            </div>
          </div>

          {/* Bot Detection Section - Full Width */}
          <div className="mt-6 space-y-3">
            <SectionHeader icon={Shield} title="Bot Detection Tests" />
            <div className="grid grid-cols-1 md:grid-cols-3 gap-3">
              <BotTestIndicator
                passed={tests.webdriver_hidden}
                label="WebDriver Hidden"
              />
              <BotTestIndicator
                passed={tests.chrome_runtime}
                label="Chrome Runtime"
              />
              <BotTestIndicator
                passed={tests.permissions_query}
                label="Permissions Query"
              />
            </div>
            <div className="mt-3 text-xs text-gray-500 bg-gray-900/30 rounded-lg p-3">
              <p>
                <span className="text-green-400 font-semibold">Green checkmark</span> = Test passed (bot detection evaded)
              </p>
              <p>
                <span className="text-red-400 font-semibold">Red X</span> = Test failed (may have been detected as a bot)
              </p>
              <p>
                <span className="text-yellow-400 font-semibold">Yellow warning</span> = Test result unknown
              </p>
            </div>
          </div>
        </div>
      )}
    </div>
  );
}