"use client";

import { useState, useEffect, useRef } from "react";
import { Link, useTranslation } from "@/i18n/navigation";
import { pbLogout } from "@/app/lib/pocketbase";

function getAvatarLetter(email: string): string {
  const local = email.split("@")[0];
  if (!local) return "?";
  return local.slice(0, 1).toUpperCase();
}

interface UserAvatarProps {
  email: string;
  isVip?: boolean;
  onLogout?: () => void;
  /** 设置后点击头像打开外部菜单（如 SiteMenu），不再展开内置下拉 */
  onOpenMenu?: () => void;
}

/** 圆形头像 + 账户菜单 */
export default function UserAvatar({ email, isVip = false, onLogout, onOpenMenu }: UserAvatarProps) {
  const { t } = useTranslation("menu");
  const { t: tNav } = useTranslation("nav");
  const [open, setOpen] = useState(false);
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const handleClickOutside = (e: MouseEvent) => {
      if (ref.current && !ref.current.contains(e.target as Node)) setOpen(false);
    };
    document.addEventListener("mousedown", handleClickOutside);
    return () => document.removeEventListener("mousedown", handleClickOutside);
  }, []);

  const handleLogout = async () => {
    await pbLogout();
    setOpen(false);
    onLogout?.();
  };

  return (
    <div className="relative" ref={ref}>
      <button
        type="button"
        onClick={() => (onOpenMenu ? onOpenMenu() : setOpen((o) => !o))}
        className="flex h-9 w-9 shrink-0 items-center justify-center rounded-full bg-[#ff4d4f] text-sm font-semibold text-white shadow-sm ring-2 ring-white transition hover:bg-[#ff7a45] dark:ring-gray-900"
        aria-label={onOpenMenu ? tNav("menu") : t("yourProfile")}
        aria-expanded={onOpenMenu ? undefined : open}
      >
        {getAvatarLetter(email)}
      </button>
      {isVip && (
        <span className="absolute -top-1 -right-1 flex h-4 min-w-4 items-center justify-center rounded-full bg-amber-500 px-1 text-[10px] font-bold text-white shadow-sm">
          VIP
        </span>
      )}
      {!onOpenMenu && open && (
        <div className="absolute right-0 top-full z-50 mt-2 w-[260px] overflow-hidden rounded-xl border border-gray-200 bg-white shadow-xl dark:border-gray-700 dark:bg-gray-800">
          <div className="border-b border-gray-100 px-4 py-3 dark:border-gray-700">
            <p className="truncate text-sm font-semibold text-gray-900 dark:text-white">{email}</p>
            <p className="mt-0.5 text-xs text-gray-500 dark:text-gray-400">{isVip ? "VIP" : t("yourProfile")}</p>
          </div>
          <div className="px-2 py-2">
            <Link
              href="/digital/profile"
              onClick={() => setOpen(false)}
              className="flex w-full items-center gap-2 rounded-lg px-3 py-2.5 text-left text-sm font-medium text-gray-700 transition hover:bg-gray-50 dark:text-gray-300 dark:hover:bg-gray-700"
            >
              <span className="w-5 text-center">👤</span>
              <span>{t("yourProfile")}</span>
            </Link>
            <Link
              href="/settings/notifications"
              onClick={() => setOpen(false)}
              className="flex w-full items-center gap-2 rounded-lg px-3 py-2.5 text-left text-sm font-medium text-gray-700 transition hover:bg-gray-50 dark:text-gray-300 dark:hover:bg-gray-700"
            >
              <span className="w-5 text-center">⚙️</span>
              <span>{t("settings")}</span>
            </Link>
            <Link
              href="/pricing"
              onClick={() => setOpen(false)}
              className="flex w-full items-center gap-2 rounded-lg px-3 py-2.5 text-left text-sm font-medium text-gray-700 transition hover:bg-gray-50 dark:text-gray-300 dark:hover:bg-gray-700"
            >
              <span className="w-5 text-center">👑</span>
              <span>{t("pricing")}</span>
            </Link>
          </div>
          <button
            onClick={handleLogout}
            className="flex w-full items-center gap-2 border-t border-gray-100 px-5 py-3 text-left text-sm font-semibold text-red-600 transition hover:bg-red-50 dark:border-gray-700 dark:text-red-300 dark:hover:bg-red-950/30"
          >
            <span className="w-5 text-center">🚪</span>
            {t("logout")}
          </button>
        </div>
      )}
    </div>
  );
}