import { useEffect, useState } from "react";
import { ConsoleContext, useConsole } from "./context";
import { useConsoleStore } from "./hooks/useConsoleStore";
import { useAutoRefresh, useIntervalMs } from "./hooks/useAutoRefresh";
import DataCards from "./sections/DataCards";
import DispatchSection from "./sections/DispatchSection";
import TaskListSection from "./sections/TaskListSection";
import ConversationSection from "./sections/ConversationSection";
import TaskDetailPanel from "./sections/TaskDetailPanel";
import ApiKeySection from "./sections/ApiKeySection";
import AdminSection from "./sections/AdminSection";
import ProjectNav from "./sections/ProjectNav";
import EnvSection from "./sections/EnvSection";
import EnvContextPanel from "./sections/EnvContextPanel";
import WorkersSection from "./sections/WorkersSection";
import HealthPanel from "./sections/HealthPanel";
import SkillsSection from "./sections/SkillsSection";
import SkillsToolsPanel from "./sections/SkillsToolsPanel";
import AutomationsSection from "./sections/AutomationsSection";
import TriageSection from "./sections/TriageSection";
import TodosSection from "./sections/TodosSection";

// Redesign (2026-10-30): the old layout is gone — no top tab bar, no
// data-cards row on top of a long stacked page, no detail stack
// hanging under the conversation. The new shell is an IDE-style
// workspace that never scrolls as one page:
//   左侧栏：导航（按工作流分组）+ 项目模块（ProjectNav：项目列表 +
//     创建项目 + 成员，id nav-projects，是全站唯一的项目选择器；
//     因此不再有独立的“项目与成员”视图，旧 ProjectsSection 已删，
//     工作台也不再带项目选择器）+ 数据卡片（紧凑版，始终可见）
//   任务工作台：左 = 任务列表轨（搜索/筛选/分页），中 = 派发 + 对话，
//     右 = 任务详情检查器（概览/协作/评审与审批/线程四个内页签，
//     见 TaskDetailPanel）
//   其余功能各成独立页面（项目 / 资源 / 自动化 / 系统），从左侧栏
//     切入，页面内只放该组功能，不再把 11 个模块堆在同一页。
// Selected task survives view switches: the store lives in App,
// above the views, so currentTask / detail / chat state is not
// unmounted with a view. The view is synced to location.hash
// (#view-tasks etc.) so a reload or a shared link lands on the
// same view; unknown hashes fall back to the task workspace.
type ViewId = "tasks" | "todos" | "resources" | "automation" | "admin";
const VIEWS: Array<[ViewId, string, string]> = [
  ["tasks", "任务工作台", "任务"],
  ["todos", "项目待办", "任务"],
  ["resources", "环境与 Workers", "管理"],
  ["automation", "技能与自动化", "管理"],
  ["admin", "系统与 Key", "管理"],
];
const VIEW_TITLES: Record<ViewId, string> = Object.fromEntries(
  VIEWS.map(([id, title]) => [id, title]),
) as Record<ViewId, string>;
function viewFromHash(): ViewId {
  const h = window.location.hash.replace("#view-", "");
  return (VIEWS.some(([id]) => id === h) ? h : "tasks") as ViewId;
}

function SideNav({ view, setView }: { view: ViewId; setView: (v: ViewId) => void }) {
  return (
    <aside className="shell-side">
      <div className="shell-brand">Codex 命令台</div>
      <nav className="shell-nav" aria-label="导航">
        {["任务", "管理"].map((group) => (
          <div key={group} className="shell-nav-group">
            <div className="shell-nav-group-label">{group}</div>
            {VIEWS.filter(([, , g]) => g === group).map(([id, label]) => (
              <button key={id} type="button" className={view === id ? "active" : ""} onClick={() => setView(id)}>{label}</button>
            ))}
          </div>
        ))}
      </nav>
      <div id="nav-projects" className="shell-project-nav">
        <ProjectNav />
      </div>
      <div className="shell-stats">
        <div className="shell-stats-label">概览</div>
        <DataCards />
      </div>
    </aside>
  );
}

function TopStatus() {
  const ctx = useConsole();
  return <span className={ctx.keySaved ? "dash-status ok" : "dash-status off"}>{ctx.keySaved ? "● 已连接" : "○ 未连接"}</span>;
}

export default function App() {
  const store = useConsoleStore();
  useAutoRefresh((selectFocused) => store.refreshAll(selectFocused), 10000);
  useIntervalMs(() => store.refreshSlow(), 60000);
  const [view, setViewState] = useState<ViewId>(() => viewFromHash());
  const [composerOpen, setComposerOpen] = useState(true);
  const setView = (v: ViewId) => {
    setViewState(v);
    try { window.history.replaceState(null, "", "#view-" + v); } catch { /* noop */ }
  };
  useEffect(() => {
    const onHash = () => setViewState(viewFromHash());
    window.addEventListener("hashchange", onHash);
    return () => window.removeEventListener("hashchange", onHash);
  }, []);
  const scrollToDispatch = () => {
    setView("tasks");
    setComposerOpen(true);
    setTimeout(() => document.getElementById("sec-dispatch")?.scrollIntoView({ behavior: "smooth" }), 0);
  };

  return (
    <ConsoleContext.Provider value={store}>
      <div className="shell">
        <SideNav view={view} setView={setView} />
        <div className="shell-main">
          <header className="shell-header">
            <h1>{VIEW_TITLES[view]}</h1>
            <TopStatus />
            <span className="muted shell-hide-sm">{store.healthText}</span>
            <span className="muted shell-hide-sm">{store.quotaText}</span>
            <span className="muted shell-stamp">自动刷新 · 每 10 秒 · 已刷新 {store.refreshStamp}</span>
          </header>
          {view === "tasks" ? (
            <div className="workspace">
              <section className="workspace-rail" aria-label="任务列表">
                <h2>任务列表</h2>
                <TaskListSection onNew={scrollToDispatch} />
              </section>
              <section className="workspace-center">
                <div className="composer-toggle">
                  <button type="button" onClick={() => setComposerOpen(!composerOpen)}>
                    {composerOpen ? "收起新建任务" : "新建任务"}
                  </button>
                </div>
                {composerOpen ? <section id="sec-dispatch"><DispatchSection /></section> : null}
                <section className="card workspace-conv">
                  <h2>对话</h2>
                  <ConversationSection />
                </section>
              </section>
              <section className="workspace-inspector" aria-label="任务详情">
                <TaskDetailPanel />
              </section>
            </div>
          ) : (
            <main className="page">
              {view === "todos" ? (<><TodosSection /></>)
                : view === "resources" ? (<><EnvSection /><EnvContextPanel /><WorkersSection /><HealthPanel /></>)
                : view === "automation" ? (<><SkillsSection /><SkillsToolsPanel /><AutomationsSection /><TriageSection /></>)
                : (<><AdminSection /><ApiKeySection /></>)}
            </main>
          )}
        </div>
      </div>
    </ConsoleContext.Provider>
  );
}