"use client";

import { useEffect, useRef } from "react";
import { createPortal } from "react-dom";
import { X } from "lucide-react";
import { cn } from "@/lib/utils";

export function Modal({
  open,
  onClose,
  title,
  children,
  className
}: {
  open: boolean;
  onClose: () => void;
  title: string;
  children: React.ReactNode;
  className?: string;
}) {
  const closeRef = useRef<HTMLButtonElement>(null);

  useEffect(() => {
    if (!open) return;
    closeRef.current?.focus();
    const onKey = (e: KeyboardEvent) => {
      if (e.key === "Escape") onClose();
    };
    document.addEventListener("keydown", onKey);
    document.body.style.overflow = "hidden";
    return () => {
      document.removeEventListener("keydown", onKey);
      document.body.style.overflow = "";
    };
  }, [open, onClose]);

  if (!open || typeof document === "undefined") return null;

  return createPortal(
    <div className="fixed inset-0 z-50 flex items-center justify-center p-4">
      <div
        className="absolute inset-0 bg-ink-950/40 backdrop-blur-[2px]"
        onClick={onClose}
        aria-hidden="true"
      />
      <div
        role="dialog"
        aria-modal="true"
        aria-labelledby="modal-title"
        className={cn(
          "relative z-10 w-full max-w-md rounded-2xl bg-white p-6 shadow-xl",
          className
        )}
      >
        <div className="mb-4 flex items-center justify-between">
          <h2 id="modal-title" className="text-base font-semibold text-ink-900">
            {title}
          </h2>
          <button
            ref={closeRef}
            onClick={onClose}
            aria-label="Close"
            className="rounded-lg p-1 text-ink-400 hover:bg-ink-100 hover:text-ink-700 focus:outline-none focus-visible:ring-2 focus-visible:ring-brand-500"
          >
            <X className="h-4 w-4" />
          </button>
        </div>
        {children}
      </div>
    </div>,
    document.body
  );
}