feat(student): wire roster identity and student session

New Platform Shell entry point (frontend/src/platform/) alongside the existing, completely unmodified Lab UI (App.jsx and everything under frontend/src/components/). main.jsx now splits on the current URL path — /lab/<token>/ renders the existing <App/> exactly as before; anything else renders the new <PlatformShell/>. Both live in the same built bundle (it's served both by the persistent identity instance and by every ephemeral Lab container), split purely at runtime. - EntryScreen.jsx — cohort dropdown -> name dropdown (existing GET /api/roster/cohorts, GET /api/roster?cohort=) -> POST /api/login. No password. Visibly labeled pilot identity, not production auth, per the governing requirement that this be stated explicitly, not just true in the architecture docs. - api.js — student_id lives in localStorage only, sent as X-Student-Id on every authenticated request. Every authenticated call throws if no student is stored rather than silently going out anonymously — this is what "prevent accidental anonymous progress writes" means in practice, not just a comment. - PlatformShell.jsx — entry screen if no stored session, dashboard otherwise. Co-Authored-By: Claude Sonnet 5 <[email protected]>
2026-08-18 11:16:24 -05:00
parent ce6abfe6c7
commit 5e4f5518fd
4 changed files with 143 additions and 1 deletions
@@ -0,0 +1,73 @@
+import { useState, useEffect } from 'react'
+import { api, storeStudent } from './api'
+import styles from './Platform.module.css'
+
+// A. Entry screen — RootNode Academy branding, choose your name from roster, no password.
+// Explicitly pilot/dev identity, not production auth — see
+// docs/PHASE2A_GATEWAY_AND_STUDENT_FLOW.md "Student identity limitation."
+export default function EntryScreen({ onLogin }) {
+  const [cohorts, setCohorts] = useState([])
+  const [cohort, setCohort] = useState('')
+  const [roster, setRoster] = useState([])
+  const [studentId, setStudentId] = useState('')
+  const [loading, setLoading] = useState(false)
+  const [error, setError] = useState(null)
+
+  useEffect(() => {
+    api.cohorts().then(setCohorts).catch((e) => setError(e.message))
+  }, [])
+
+  useEffect(() => {
+    if (!cohort) { setRoster([]); return }
+    api.roster(cohort).then(setRoster).catch((e) => setError(e.message))
+  }, [cohort])
+
+  const handleLogin = async () => {
+    if (!studentId) return
+    setLoading(true)
+    setError(null)
+    try {
+      const student = await api.login(studentId)
+      storeStudent(student)
+      onLogin(student)
+    } catch (e) {
+      setError(e.message)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  return (
+    <div className={styles.entryWrap}>
+      <div className={styles.entryCard}>
+        <div className={styles.brand}>
+          <span className={styles.brandIcon}>⎈</span> RootNode Academy
+        </div>
+        <p className={styles.tagline}>Real-world Kubernetes labs. Pick your name to continue.</p>
+        <p className={styles.pilotNote}>Pilot identity — no password. Not production auth.</p>
+
+        {error && <div className={styles.errorBox}>{error}</div>}
+
+        <label className={styles.label}>Cohort</label>
+        <select className={styles.select} value={cohort} onChange={(e) => { setCohort(e.target.value); setStudentId('') }}>
+          <option value="">Select a cohort…</option>
+          {cohorts.map((c) => <option key={c} value={c}>{c}</option>)}
+        </select>
+
+        {cohort && (
+          <>
+            <label className={styles.label}>Your name</label>
+            <select className={styles.select} value={studentId} onChange={(e) => setStudentId(e.target.value)}>
+              <option value="">Select your name…</option>
+              {roster.map((s) => <option key={s.student_id} value={s.student_id}>{s.display_name}</option>)}
+            </select>
+          </>
+        )}
+
+        <button className={styles.primaryBtn} disabled={!studentId || loading} onClick={handleLogin}>
+          {loading ? 'Signing in…' : 'Continue'}
+        </button>
+      </div>
+    </div>
+  )
+}