import React, { useEffect } from 'react';
import { X } from 'lucide-react';
import { cn } from '../utils/cn';

interface ModalProps {
  isOpen: boolean;
  onClose: () => void;
  title: string;
  children: React.ReactNode;
  size?: 'sm' | 'md' | 'lg' | 'xl';
}

const Modal: React.FC<ModalProps> = ({ isOpen, onClose, title, children, size = 'md' }) => {
  useEffect(() => {
    const handleEscape = (e: KeyboardEvent) => {
      if (e.key === 'Escape') {
        onClose();
      }
    };

    if (isOpen) {
      document.addEventListener('keydown', handleEscape);
      document.body.style.overflow = 'hidden';
    }

    return () => {
      document.removeEventListener('keydown', handleEscape);
      document.body.style.overflow = 'unset';
    };
  }, [isOpen, onClose]);

  if (!isOpen) return null;

  const sizeClasses = {
    sm: 'max-w-md',
    md: 'max-w-lg',
    lg: 'max-w-2xl',
    xl: 'max-w-4xl',
  };

  return (
    <div className="fixed inset-0 z-50 flex items-start justify-center p-4 pt-8 overflow-y-auto">
      {/* Backdrop */}
      <div 
        className="fixed inset-0 bg-black/50 backdrop-blur-sm"
        onClick={onClose}
      />
      
      {/* Modal */}
      <div className={cn(
        "relative w-full bg-white/95 dark:bg-slate-800/95 backdrop-blur-md rounded-2xl shadow-2xl border border-slate-200/20 dark:border-slate-700/20 my-8",
        sizeClasses[size]
      )}>
        {/* Header */}
        <div className="flex items-center justify-between p-6 border-b border-slate-200/60 dark:border-slate-700/60 bg-slate-50/30 dark:bg-slate-800/30 rounded-t-2xl">
          <h3 className="text-xl font-semibold text-slate-900 dark:text-white">
            {title}
          </h3>
          <button
            onClick={onClose}
            className="p-2 rounded-lg hover:bg-slate-100 dark:hover:bg-slate-700 transition-all duration-200 hover:scale-105"
          >
            <X className="w-5 h-5 text-slate-500 dark:text-slate-400" />
          </button>
        </div>

        {/* Content */}
        <div className="p-6 overflow-y-auto max-h-[calc(100vh-200px)] scrollbar-thin">
          {children}
        </div>
      </div>
    </div>
  );
};

export default Modal;