/**
 * 主应用入口
 *
 * 页面结构:
 * - /         → 先知主站(报纸风赛程 + 预测),报头含「评估」「管理」入口
 * - /admin/*  → 管理后台(鉴权门禁,未登录引导登录)
 *
 * 导航策略:
 * - 首页报头放「评估」「管理」入口(极简,不另加导航条)
 * - 管理后台由 AdminLayout 侧边栏处理所有管理页导航
 * - 未登录访问管理 → AdminLayout 门禁 → 登录页(不静默失败)
 */

import { BrowserRouter, Routes, Route, Navigate, Link } from 'react-router-dom'
import { ErrorBoundary } from './components/ErrorBoundary'
import Matches from './pages/Matches'
import Standings from './pages/Standings'
import { adminRoutes } from './admin/routes'

/** 报眉日期行 */
function dateLine(): string {
  return new Date().toLocaleDateString('zh-CN', {
    year: 'numeric',
    month: 'long',
    day: 'numeric',
    weekday: 'long',
  })
}

function StandingsLayout({ children }: { children: React.ReactNode }) {
  return (
    <div className="min-h-screen bg-paper-50">
      <header className="masthead-rule">
        <div className="mx-auto max-w-5xl px-5 sm:px-8">
          <div className="border-b border-ink-900 py-5 text-center sm:py-6">
            <h1 className="font-brush text-5xl text-ink-900 sm:text-6xl">
              先知
            </h1>
          </div>
          <div className="flex items-center justify-between border-b border-ink-200 py-2 text-2xs text-ink-500">
            <span>{dateLine()}</span>
            <nav className="flex items-center gap-4" aria-label="页面导航">
              <Link to="/" className="text-ink-500 hover:text-press transition-colors">
                比赛 / 预测
              </Link>
              <Link to="/admin/eval" className="text-ink-500 hover:text-press transition-colors">
                评估
              </Link>
              <Link to="/admin" className="flex items-center gap-1 text-ink-500 hover:text-press transition-colors">
                <span aria-hidden="true">⚙</span> 管理
              </Link>
            </nav>
          </div>
        </div>
      </header>

      <main className="mx-auto max-w-5xl px-5 py-6 sm:px-8 sm:py-8">
        {children}
      </main>

      <footer className="mx-auto max-w-5xl px-5 pb-10 sm:px-8">
        <div className="border-t border-ink-200 pt-3 text-center text-2xs leading-relaxed text-ink-400">
          数据由 bzzoiro 提供 · 仅供研究参考
        </div>
      </footer>
    </div>
  )
}

function HomePage() {
  return (
    <div className="min-h-screen bg-paper-50">
      {/* ── 报头:粗线 + 居中刊名 + 日期与分区链接 ── */}
      <header className="masthead-rule">
        <div className="mx-auto max-w-5xl px-5 sm:px-8">
          <div className="border-b border-ink-900 py-5 text-center sm:py-6">
            <h1 className="font-brush text-5xl text-ink-900 sm:text-6xl">
              先知
            </h1>
          </div>
          <div className="flex items-center justify-between border-b border-ink-200 py-2 text-2xs text-ink-500">
            <span>{dateLine()}</span>
            <nav className="flex items-center gap-4" aria-label="页面导航">
              <Link to="/standings" className="text-ink-500 hover:text-press transition-colors">
                积分榜
              </Link>
              <Link to="/admin/eval" className="text-ink-500 hover:text-press transition-colors">
                评估
              </Link>
              <Link to="/admin" className="flex items-center gap-1 text-ink-500 hover:text-press transition-colors">
                <span aria-hidden="true">⚙</span> 管理
              </Link>
            </nav>
          </div>
        </div>
      </header>

      <main className="mx-auto max-w-5xl px-5 py-6 sm:px-8 sm:py-8">
        <Matches />
      </main>

      <footer className="mx-auto max-w-5xl px-5 pb-10 sm:px-8">
        <div className="border-t border-ink-200 pt-3 text-center text-2xs leading-relaxed text-ink-400">
          预测结果由大语言模型生成 · 仅供研究参考 · 不构成任何投注建议
        </div>
      </footer>
    </div>
  )
}

export default function App() {
  return (
    <ErrorBoundary>
      <BrowserRouter>
        <Routes>
          <Route path="/" element={<HomePage />} />
          <Route path="/standings" element={<StandingsLayout><Standings /></StandingsLayout>} />
          {adminRoutes.map(route => (
            <Route key={route.path} path={route.path} element={route.element}>
              {route.children.map(child => (
                <Route
                  key={child.path ?? 'index'}
                  index={child.index}
                  path={child.path}
                  element={child.element}
                />
              ))}
            </Route>
          ))}
          <Route path="*" element={<Navigate to="/" replace />} />
        </Routes>
      </BrowserRouter>
    </ErrorBoundary>
  )
}