"use client";

import { useState } from "react";
import { useSession, signOut } from "next-auth/react";
import { useRouter } from "next/navigation";

export default function UserMenu() {
  const { data: session } = useSession();
  const router = useRouter();
  const [isOpen, setIsOpen] = useState(false);
  const [isSigningOut, setIsSigningOut] = useState(false);

  const handleSignOut = async () => {
    setIsSigningOut(true);
    try {
      await signOut({
        callbackUrl: "/login",
        redirect: true,
      });
    } catch (error) {
      console.error("退出登录失败:", error);
      setIsSigningOut(false);
    }
  };

  if (!session?.user) {
    return null;
  }

  return (
    <div className="relative">
      {/* 用户头像按钮 */}
      <button
        onClick={() => setIsOpen(!isOpen)}
        className="flex items-center gap-2 p-2 rounded-lg hover:bg-gray-100 transition-colors"
      >
        {session.user.image ? (
          <img
            src={session.user.image}
            alt={session.user.name || "用户头像"}
            className="w-8 h-8 rounded-full"
          />
        ) : (
          <div className="w-8 h-8 bg-blue-500 rounded-full flex items-center justify-center text-white font-medium">
            {session.user.name?.[0] || session.user.email?.[0] || "U"}
          </div>
        )}
        <div className="hidden sm:block text-left">
          <div className="text-sm font-medium text-gray-900">
            {session.user.name || "用户"}
          </div>
          <div className="text-xs text-gray-500">{session.user.email}</div>
        </div>
        <svg
          className={`w-4 h-4 text-gray-500 transition-transform ${
            isOpen ? "rotate-180" : ""
          }`}
          fill="none"
          stroke="currentColor"
          viewBox="0 0 24 24"
        >
          <path
            strokeLinecap="round"
            strokeLinejoin="round"
            strokeWidth={2}
            d="M19 9l-7 7-7-7"
          />
        </svg>
      </button>

      {/* 下拉菜单 */}
      {isOpen && (
        <div className="absolute right-0 top-full mt-2 w-48 bg-white rounded-lg shadow-lg border border-gray-200 py-2 z-50">
          {/* 用户信息 */}
          <div className="px-4 py-3 border-b border-gray-100">
            <div className="text-sm font-medium text-gray-900">
              {session.user.name || "用户"}
            </div>
            <div className="text-xs text-gray-500 truncate">
              {session.user.email}
            </div>
          </div>

          {/* 菜单项 */}
          <div className="py-1">
            <button
              onClick={() => {
                setIsOpen(false);
                router.push("/profile");
              }}
              className="w-full px-4 py-2 text-left text-sm text-gray-700 hover:bg-gray-100 transition-colors"
            >
              <div className="flex items-center gap-2">
                <svg
                  className="w-4 h-4"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z"
                  />
                </svg>
                个人资料
              </div>
            </button>

            <button
              onClick={() => {
                setIsOpen(false);
                router.push("/settings");
              }}
              className="w-full px-4 py-2 text-left text-sm text-gray-700 hover:bg-gray-100 transition-colors"
            >
              <div className="flex items-center gap-2">
                <svg
                  className="w-4 h-4"
                  fill="none"
                  stroke="currentColor"
                  viewBox="0 0 24 24"
                >
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
                  />
                  <path
                    strokeLinecap="round"
                    strokeLinejoin="round"
                    strokeWidth={2}
                    d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
                  />
                </svg>
                设置
              </div>
            </button>

            <div className="border-t border-gray-100 my-1"></div>

            <button
              onClick={handleSignOut}
              disabled={isSigningOut}
              className="w-full px-4 py-2 text-left text-sm text-red-600 hover:bg-red-50 transition-colors disabled:opacity-50"
            >
              <div className="flex items-center gap-2">
                {isSigningOut ? (
                  <div className="w-4 h-4 border-2 border-red-600 border-t-transparent rounded-full animate-spin"></div>
                ) : (
                  <svg
                    className="w-4 h-4"
                    fill="none"
                    stroke="currentColor"
                    viewBox="0 0 24 24"
                  >
                    <path
                      strokeLinecap="round"
                      strokeLinejoin="round"
                      strokeWidth={2}
                      d="M17 16l4-4m0 0l-4-4m4 4H7m6 4v1a3 3 0 01-3 3H6a3 3 0 01-3-3V7a3 3 0 013-3h4a3 3 0 013 3v1"
                    />
                  </svg>
                )}
                {isSigningOut ? "退出中..." : "退出登录"}
              </div>
            </button>
          </div>
        </div>
      )}

      {/* 点击外部区域关闭菜单 */}
      {isOpen && (
        <div className="fixed inset-0 z-40" onClick={() => setIsOpen(false)} />
      )}
    </div>
  );
}