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<script lang="ts">
  import { onMount } from 'svelte';
  import type { Route } from './lib/router';
  import { routeFromHash, replace } from './lib/router';
  import { session } from './lib/session.svelte';
  import Layout from './components/Layout.svelte';
  import AuthPages from './pages/AuthPages.svelte';
  import ProjectsPage from './pages/ProjectsPage.svelte';
  import ProjectPage from './pages/ProjectPage.svelte';
  import DatasetsPage from './pages/DatasetsPage.svelte';
  import RunsPage from './pages/RunsPage.svelte';
  import UsagePage from './pages/UsagePage.svelte';
  import AccountPage from './pages/AccountPage.svelte';
  import AdminPage from './pages/AdminPage.svelte';
  import Loading from './components/Loading.svelte';

  let route = $state<Route>(routeFromHash());

  window.addEventListener('hashchange', () => {
    route = routeFromHash();
  });

  const publicRoutes = new Set(['login', 'register', 'reset']);
  const projectRoutes = new Set(['project-data', 'project-strategy', 'project-backtest', 'project-results']);

  onMount(() => {
    void session.refresh();
  });

  $effect(() => {
    if (publicRoutes.has(route.name)) return;
    if (session.status === 'anon') {
      replace('/login');
      return;
    }
    if (session.me && route.name === 'admin' && session.me.role !== 'admin') {
      replace('/projects');
    }
  });

  const showAuth = $derived(publicRoutes.has(route.name) || session.status === 'anon');
  const booting = $derived(session.status === 'loading' && !publicRoutes.has(route.name));
</script>

<div class="app-root">
  {#if booting}
    <Loading />
  {:else if showAuth}
    <AuthPages {route} />
  {:else}
    <Layout {route}>
      {#if route.name === 'projects'}
        <ProjectsPage />
      {:else if projectRoutes.has(route.name)}
        <ProjectPage {route} />
      {:else if route.name === 'datasets'}
        <DatasetsPage />
      {:else if route.name === 'runs'}
        <RunsPage />
      {:else if route.name === 'usage'}
        <UsagePage />
      {:else if route.name === 'account'}
        <AccountPage />
      {:else if route.name === 'admin'}
        <AdminPage />
      {:else}
        <ProjectsPage />
      {/if}
    </Layout>
  {/if}
</div>