import React, { useState, useEffect } from 'react';
// import { Command } from 'cmdk'; // Hypothetical import

interface CommandPaletteProps {
  isOpen: boolean;
  onClose: () => void;
}

const GlobalCommandPalette: React.FC<CommandPaletteProps> = ({ isOpen, onClose }) => {
  const [query, setQuery] = useState('');

  // Mock search results merging Vector Search (RRF) and Graph Entities
  const [results, setResults] = useState<string[]>([
    "Executing Trade: Buy AAPL",
    "Open Report: Q3 Strategy",
    "Agent Action: Run Monte Carlo"
  ]);

  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (e.key === 'k' && (e.metaKey || e.ctrlKey)) {
        // Toggle open/close logic would be lifted up
      }
    };
    document.addEventListener('keydown', handleKeyDown);
    return () => document.removeEventListener('keydown', handleKeyDown);
  }, []);

  if (!isOpen) return null;

  return (
    <div className="fixed inset-0 bg-black/50 backdrop-blur-sm flex items-center justify-center z-50">
      <div className="bg-slate-900 border border-slate-700 w-full max-w-2xl rounded-xl shadow-2xl overflow-hidden font-mono text-cyan-400">
        <div className="p-4 border-b border-slate-800 flex items-center gap-2">
          <span className="text-slate-500">{">"}</span>
          <input
            className="bg-transparent w-full outline-none placeholder-slate-600"
            placeholder="Search commands, entities, or ask Agent..."
            value={query}
            onChange={(e) => setQuery(e.target.value)}
            autoFocus
          />
        </div>
        <div className="max-h-96 overflow-y-auto p-2">
           <div className="px-2 py-1 text-xs text-slate-500 uppercase tracking-wider mb-2">Suggested</div>
           {results.map((res, i) => (
             <div key={i} className="px-3 py-2 hover:bg-slate-800 rounded cursor-pointer flex justify-between group">
               <span>{res}</span>
               <span className="text-slate-600 group-hover:text-cyan-600">↵</span>
             </div>
           ))}
        </div>
        <div className="p-2 bg-slate-950 text-xs text-slate-500 flex justify-between">
           <span>v24.0.0-alpha</span>
           <span>Iron Core: Connected</span>
        </div>
      </div>
    </div>
  );
};

export default GlobalCommandPalette;