import "../../styles/components/Navbar.css";

import { useContext, useState } from "react";
import { Link, useNavigate } from "react-router-dom";
import { logoutRequest } from "../../api/auth";
import { AuthContext } from "../../context/AuthContext";
import useActionToast from "../../hooks/useActionToast";
import getApiErrorMessage from "../../lib/getApiErrorMessage";
import HouseholdSwitcher from "../household/HouseholdSwitcher";

export default function Navbar() {
  const navigate = useNavigate();
  const { role, logout, username } = useContext(AuthContext);
  const toast = useActionToast();
  const [showUserMenu, setShowUserMenu] = useState(false);

  const closeMenus = () => {
    setShowUserMenu(false);
  };

  const handleLogout = async () => {
    let loggedOutRemotely = true;
    let fallbackReason = "";
    try {
      await logoutRequest();
    } catch (error) {
      // Clear local auth state even if server logout fails.
      loggedOutRemotely = false;
      fallbackReason = getApiErrorMessage(error, "Unable to end server session");
    } finally {
      logout();
      closeMenus();
      if (loggedOutRemotely) {
        toast.success("Logged out", "Logged out successfully");
      } else {
        toast.info("Logged out locally", `Server logout failed: ${fallbackReason}`);
      }
      navigate("/login");
    }
  };

  return (
    <nav className="navbar">
      <div className="navbar-section navbar-spacer" aria-hidden="true"></div>

      {/* Center: Home + Household + Manage */}
      <div className="navbar-section navbar-center">
        <div className="navbar-center-nav">
          <Link
            to="/"
            className="navbar-icon-link navbar-icon-left"
            title="Home"
            aria-label="Home"
            onClick={closeMenus}
          >
            <span aria-hidden="true">&#8962;</span>
          </Link>

          <div className="navbar-household-wrap">
            <HouseholdSwitcher />
          </div>

          <Link
            to="/manage"
            className="navbar-icon-link navbar-icon-right"
            title="Manage"
            aria-label="Manage"
            onClick={closeMenus}
          >
            <span aria-hidden="true">&#9881;</span>
          </Link>
        </div>
      </div>

      {/* Right: User Menu */}
      <div className="navbar-section navbar-right">
        <button
          className="navbar-user-btn"
          onClick={() => {
            setShowUserMenu(!showUserMenu);
          }}
          aria-label="User menu"
        >
          <span className="navbar-user-icon" aria-hidden="true">
            <svg viewBox="0 0 24 24" focusable="false" aria-hidden="true">
              <path d="M12 12a5 5 0 1 0-5-5 5 5 0 0 0 5 5Zm0 2c-4.14 0-7.5 2.69-7.5 6v1h15v-1c0-3.31-3.36-6-7.5-6Z" />
            </svg>
          </span>
          <span className="navbar-user-name">{username}</span>
        </button>

        {showUserMenu && (
          <>
            <div className="menu-overlay" onClick={closeMenus}></div>
            <div className="navbar-dropdown user-dropdown">
              <div className="user-dropdown-info">
                <span className="user-dropdown-username">{username}</span>
                <span className="user-dropdown-role">{role}</span>
              </div>
              <Link to="/settings" className="user-dropdown-link" onClick={closeMenus}>
                User Settings
              </Link>
              {role === "system_admin" && (
                <Link to="/admin" className="user-dropdown-link" onClick={closeMenus}>
                  Admin Settings
                </Link>
              )}
              <button className="user-dropdown-logout" onClick={handleLogout}>
                Logout
              </button>
            </div>
          </>
        )}
      </div>
    </nav>
  );
}