cronmaster/app/_components/ui/Modal.tsx

'use client'

import { useEffect, useRef } from 'react';
import { X } from 'lucide-react';
import { cn } from '@/app/_utils/cn';
import { Button } from './Button';

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

export function Modal({
  isOpen,
  onClose,
  title,
  children,
  size = 'md',
  showCloseButton = true
}: ModalProps) {
  const modalRef = useRef<HTMLDivElement>(null);

  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]);

  useEffect(() => {
    const handleClickOutside = (event: MouseEvent) => {
      if (modalRef.current && !modalRef.current.contains(event.target as Node)) {
        onClose();
      }
    };

    if (isOpen) {
      document.addEventListener('mousedown', handleClickOutside);
    }

    return () => {
      document.removeEventListener('mousedown', handleClickOutside);
    };
  }, [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-end justify-center sm:items-center p-0 sm:p-4">
      {/* Backdrop */}
      <div className="absolute inset-0 bg-black/50 backdrop-blur-sm" />

      {/* Modal - Bottom sheet on mobile, centered on desktop */}
      <div
        ref={modalRef}
        className={cn(
          'relative w-full bg-card border border-border shadow-lg overflow-y-auto',
          // Mobile: bottom sheet style (no rounded corners, full width)
          'max-h-[85vh]',
          // Desktop: original perfect modal behavior
          'sm:rounded-lg sm:max-h-[90vh] sm:w-full',
          sizeClasses[size]
        )}
      >
        {/* Header */}
        <div className="flex items-center justify-between p-4 sm:p-6 border-b border-border sticky top-0 bg-card z-10">
          <h2 className="text-lg font-semibold text-foreground">{title}</h2>
          {showCloseButton && (
            <Button
              variant="ghost"
              size="icon"
              onClick={onClose}
              className="h-8 w-8"
            >
              <X className="h-4 w-4" />
            </Button>
          )}
        </div>

        {/* Content */}
        <div className="p-4 sm:p-6">
          {children}
        </div>
      </div>
    </div>
  );
}