import { useEffect, useState } from "react";
import { Avatar, Modal, Popover, Tooltip } from "@douyinfe/semi-ui-19";
import {
  IconBeaker,
  IconChevronDown,
  IconClose,
  IconCommand,
  IconExit,
  IconGridView,
  IconList,
  IconMoon,
  IconSidebar,
  IconUser,
} from "@douyinfe/semi-icons";
import type { Account } from "../types";
import type { WorkspacePage } from "../ai/workspace";

const navigation = [
  { id: "datasets", label: "数据目录", icon: IconList, group: "数据与素材" },
  { id: "operators", label: "算子库", icon: IconList, group: "数据与素材" },
  {
    id: "templates",
    label: "模板工坊",
    icon: IconGridView,
    group: "数据与素材",
  },
  { id: "features", label: "特征工程", icon: IconBeaker, group: "研究实验" },
  { id: "variants", label: "Alpha 变体", icon: IconBeaker, group: "研究实验" },
  { id: "backtests", label: "回测研究", icon: IconBeaker, group: "研究实验" },
  { id: "pipeline", label: "研究流水线", icon: IconBeaker, group: "研究编排" },
  { id: "alphas", label: "Alpha 管理", icon: IconGridView, group: "研究成果" },
  { id: "account", label: "个人信息", icon: IconUser, group: "" },
] as const;

export function AppSidebar({
  account,
  page,
  collapsed,
  blocked,
  onCollapse,
  onNavigate,
  onLogout,
  onTheme,
}: {
  account: Account | null;
  page: WorkspacePage;
  collapsed: boolean;
  blocked: boolean;
  onCollapse: () => void;
  onNavigate: (page: WorkspacePage) => void;
  onLogout: () => void;
  onTheme: () => void;
}) {
  const [userOpen, setUserOpen] = useState(false);
  const [commandOpen, setCommandOpen] = useState(false);
  const [recent, setRecent] = useState<WorkspacePage[]>([page]);
  const name = account?.display_name || "研究员";
  useEffect(() => {
    setRecent((old) => [page, ...old.filter((id) => id !== page)].slice(0, 4));
  }, [page]);
  useEffect(() => {
    if (blocked) {
      setUserOpen(false);
      setCommandOpen(false);
    }
    const shortcut = (event: KeyboardEvent) => {
      if (
        !blocked &&
        (event.metaKey || event.ctrlKey) &&
        event.key.toLowerCase() === "k"
      ) {
        event.preventDefault();
        setCommandOpen((open) => !open);
      }
    };
    window.addEventListener("keydown", shortcut);
    return () => window.removeEventListener("keydown", shortcut);
  }, [blocked]);
  function navigate(id: WorkspacePage) {
    setUserOpen(false);
    setCommandOpen(false);
    onNavigate(id);
  }
  function closeRecent(id: WorkspacePage) {
    if (recent.length <= 1) return;
    const next = recent.filter((item) => item !== id);
    setRecent(next);
    if (id === page) navigate(next[0]);
  }
  return (
    <>
      <aside
        className={`app-sidebar ${collapsed ? "is-collapsed" : ""}`}
        inert={blocked}
        aria-label="工作空间导航"
      >
        <div className="sidebar-user-row">
          <Popover
            trigger="click"
            position={collapsed ? "rightTop" : "bottomLeft"}
            visible={userOpen}
            onVisibleChange={setUserOpen}
            showArrow={false}
            content={
              <div className="sidebar-user-menu">
                <div className="sidebar-user-details">
                  <strong>{name}</strong>
                  {account?.email && account.email !== name && (
                    <span>{account.email}</span>
                  )}
                  <span>
                    WorldQuant{" "}
                    {account?.connection_status === "connected"
                      ? "已连接"
                      : "未连接"}
                  </span>
                </div>
                <button
                  aria-label="查看个人信息"
                  onClick={() => navigate("account")}
                >
                  <IconUser />
                  查看个人信息
                </button>
                <button
                  aria-label={
                    account?.theme === "dark" ? "切换浅色主题" : "切换深色主题"
                  }
                  onClick={onTheme}
                >
                  <IconMoon />
                  {account?.theme === "dark" ? "切换浅色主题" : "切换深色主题"}
                </button>
                <button
                  aria-label="退出登录"
                  onClick={() => {
                    setUserOpen(false);
                    onLogout();
                  }}
                >
                  <IconExit />
                  退出登录
                </button>
              </div>
            }
          >
            <button
              className="sidebar-user-trigger"
              aria-label="用户菜单"
              aria-expanded={userOpen}
            >
              <Avatar size="small" color="grey">
                {name.slice(0, 2).toUpperCase()}
              </Avatar>
              {!collapsed && (
                <>
                  <span className="account-name">{name}</span>
                  <IconChevronDown size="small" />
                </>
              )}
            </button>
          </Popover>
        </div>
        {!collapsed && (
          <div className="sidebar-command">
            <button onClick={() => setCommandOpen(true)}>
              <IconCommand />
              <span>快捷导航</span>
              <kbd>⌘K</kbd>
            </button>
          </div>
        )}
        <nav className="sidebar-nav" aria-label="主导航">
          {["数据与素材", "研究实验", "研究编排", "研究成果"].map((group) => (
            <div key={group}>
              {!collapsed && (
                <div className="sidebar-group-heading">{group}</div>
              )}
              {navigation
                .filter((item) => item.group === group)
                .map(({ id, label, icon: Icon }) => (
                  <Tooltip
                    key={id}
                    content={label}
                    position="right"
                    visible={collapsed ? undefined : false}
                  >
                    <button
                      className={`sidebar-nav-item ${id === page ? "active" : ""}`}
                      aria-label={label}
                      aria-current={id === page ? "page" : undefined}
                      onClick={() => navigate(id)}
                    >
                      <Icon style={{ fontSize: 17 }} />
                      {!collapsed && <span>{label}</span>}
                    </button>
                  </Tooltip>
                ))}
            </div>
          ))}
        </nav>
        <div className="sidebar-footer">
          {!collapsed && (
            <div className="recent-heading">
              <span>最近访问</span>
              <button onClick={() => setRecent([page])}>全部关闭</button>
            </div>
          )}
          <nav aria-label="最近访问">
            {recent.map((id) => {
              const item = navigation.find((item) => item.id === id)!;
              const Icon = item.icon;
              return (
                <div
                  key={id}
                  className={`recent-item ${id === page ? "active" : ""}`}
                >
                  <Tooltip
                    content={item.label}
                    position="right"
                    visible={collapsed ? undefined : false}
                  >
                    <button
                      className="recent-link"
                      aria-label={`最近访问：${item.label}`}
                      onClick={() => navigate(id)}
                    >
                      <Icon style={{ fontSize: 15 }} />
                      {!collapsed && <span>{item.label}</span>}
                    </button>
                  </Tooltip>
                  {!collapsed && (
                    <button
                      className="recent-close"
                      aria-label={`关闭最近访问：${item.label}`}
                      disabled={recent.length === 1}
                      onClick={() => closeRecent(id)}
                    >
                      <IconClose size="small" />
                    </button>
                  )}
                </div>
              );
            })}
          </nav>
          <div className="sidebar-collapse">
            <Tooltip
              content={collapsed ? "展开导航" : "收起导航"}
              position="right"
            >
              <button
                onClick={onCollapse}
                aria-label={collapsed ? "展开导航" : "收起导航"}
              >
                <IconSidebar />
                {!collapsed && <span>收起导航</span>}
              </button>
            </Tooltip>
          </div>
        </div>
      </aside>
      <Modal
        title="快捷导航"
        visible={commandOpen}
        footer={null}
        onCancel={() => setCommandOpen(false)}
        width={420}
      >
        <div className="command-items">
          {navigation.map(({ id, label, icon: Icon }) => (
            <button key={id} onClick={() => navigate(id)}>
              <Icon />
              {label}
            </button>
          ))}
        </div>
      </Modal>
    </>
  );
}