/**
 * Sidebar - 侧边栏导航组件（Task 1.3）
 *
 * 功能：
 * - 分组导航菜单（创作工具 / 资源管理 / 系统）
 * - 每个菜单项：图标 + 文字
 * - 当前页面对应菜单项高亮（基于路由匹配）
 * - 点击跳转路由
 * - 折叠态：仅显示图标，隐藏文字（通过 SidebarContext 读取 collapsed 状态）
 * - 响应式：移动端自动折叠
 */
import React, { useContext } from "react";
import { useLocation, useNavigate } from "react-router-dom";
import {
  DashboardOutlined,
  VideoCameraOutlined,
  FileOutlined,
  AudioOutlined,
  FileTextOutlined,
  TrophyOutlined,
  AppstoreOutlined,
  HistoryOutlined,
  ControlOutlined,
  CrownOutlined,
} from "@ant-design/icons";
import { SidebarContext } from "./MainLayout";
import "./Sidebar.css";

/** 导航项定义 */
interface SidebarMenuItem {
  key: string;
  label: string;
  path: string;
  icon: React.ReactNode;
}

/** 导航分组定义 */
interface SidebarMenuGroup {
  title: string;
  items: SidebarMenuItem[];
}

/** 侧边栏导航分组 */
const MENU_GROUPS: SidebarMenuGroup[] = [
  {
    title: "创作工具",
    items: [
      {
        key: "dashboard",
        label: "首页",
        path: "/dashboard",
        icon: <DashboardOutlined />,
      },
      {
        key: "generate",
        label: "一键生成",
        path: "/generate",
        icon: <VideoCameraOutlined />,
      },
    ],
  },
  {
    title: "资源管理",
    items: [
      {
        key: "assets",
        label: "素材库",
        path: "/assets",
        icon: <FileOutlined />,
      },
      {
        key: "voices",
        label: "配音库",
        path: "/voices",
        icon: <AudioOutlined />,
      },
      {
        key: "titles",
        label: "标题库",
        path: "/titles",
        icon: <FileTextOutlined />,
      },
      {
        key: "products",
        label: "成片库",
        path: "/products",
        icon: <TrophyOutlined />,
      },
      {
        key: "templates",
        label: "模板库",
        path: "/templates",
        icon: <AppstoreOutlined />,
      },
    ],
  },
  {
    title: "系统",
    items: [
      {
        key: "history",
        label: "任务历史",
        path: "/history",
        icon: <HistoryOutlined />,
      },
      {
        key: "admin",
        label: "控制台",
        path: "/admin",
        icon: <ControlOutlined />,
      },
      {
        key: "subscription",
        label: "订阅管理",
        path: "/subscription",
        icon: <CrownOutlined />,
      },
    ],
  },
];

/** 判断菜单项是否激活 */
const isMenuItemActive = (pathname: string, path: string): boolean => {
  if (path === "/dashboard") {
    return pathname === "/" || pathname === "/dashboard";
  }
  return pathname.startsWith(path);
};

const Sidebar: React.FC = () => {
  const { collapsed } = useContext(SidebarContext);
  const location = useLocation();
  const navigate = useNavigate();

  const handleNavigate = (path: string) => {
    navigate(path);
  };

  return (
    <div className={`xx-sidebar-nav${collapsed ? " xx-sidebar-nav--collapsed" : ""}`}>
      {MENU_GROUPS.map((group) => (
        <div className="xx-sidebar-group" key={group.title}>
          {!collapsed && (
            <div className="xx-sidebar-group-title">{group.title}</div>
          )}
          <ul className="xx-sidebar-menu" role="menu">
            {group.items.map((item) => {
              const active = isMenuItemActive(location.pathname, item.path);
              return (
                <li
                  key={item.key}
                  className={`xx-sidebar-menu-item${active ? " xx-active" : ""}`}
                  role="menuitem"
                  title={collapsed ? item.label : undefined}
                  onClick={() => handleNavigate(item.path)}
                >
                  <span className="xx-sidebar-menu-icon">{item.icon}</span>
                  {!collapsed && (
                    <span className="xx-sidebar-menu-label">{item.label}</span>
                  )}
                </li>
              );
            })}
          </ul>
        </div>
      ))}
    </div>
  );
};

export default Sidebar;