new_starr_app — Frontend

React + Vite CSR frontend for the STARR LMS platform.

---

Page Metadata

Metadata (<title>, Open Graph, Twitter Card) is managed with react-helmet-async.
The system has two layers:

1. Global fallback — a <Helmet> in App.jsx always renders default tags. Any page that does not supply its own metadata falls back to this.
2. Per-page override — each page renders a <PageMeta /> component anywhere in its JSX tree. react-helmet-async lets the deepest/last <Helmet> win, so the page always overrides the fallback.

This approach fixes the useNavigate() stale-title bug: when you navigate away from a page, its <PageMeta> unmounts and the global fallback immediately takes over.

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The component

// src/contexts/MetadataContext.jsx
import { PageMeta } from '@/contexts/MetadataContext'

Props

Prop	Type	Default
title	string | undefined	'STARR | Philproperties'
description	string | undefined	app default description
keywords	string | undefined	app default keywords
ogImage	string | undefined	app default OG image URL
ogType	string	'website'

Every prop is optional. Any omitted prop falls back to the app-level default.
Passing title={undefined} explicitly is the same as omitting it — the fallback title renders.

---

Static pages

Pages with no data dependency just pass a hardcoded string.

import { PageMeta } from '@/contexts/MetadataContext'

export default function CourseList() {
  return (
    <section className="bg-muted h-full">
      <PageMeta
        title="Courses - STARR"
        description="Browse and manage your training courses."
      />
      {/* rest of page */}
    </section>
  )
}

---

Dynamic pages — data from context

When the page title comes from an API response, pass the derived string.
Use undefined (not a hardcoded fallback string) while the data is loading — this lets the global default render during the loading state and then automatically updates when data arrives.

import { PageMeta } from '@/contexts/MetadataContext'
import { useCourses } from '@/contexts/AdminCoursesContext'

export default function ViewCourse() {
  const { course } = useCourses()

  return (
    <section className="bg-muted/60 min-h-full">
      {/* undefined while course is null → global default renders */}
      <PageMeta
        title={course ? `${course.title} - STARR` : undefined}
        description={course?.description}
      />
      {/* rest of page */}
    </section>
  )
}

---

Dynamic pages — data in local state

Same pattern when the title comes from local useState instead of context.

import { PageMeta } from '@/contexts/MetadataContext'

export default function EditUnit() {
  const [unitTitle, setUnitTitle] = useState('')
  // ... fetch and setUnitTitle on load

  return (
    <section className="bg-muted h-full">
      <PageMeta title={unitTitle ? `Edit: ${unitTitle} - STARR` : undefined} />
      {/* rest of page */}
    </section>
  )
}

---

Placement rules

• Drop <PageMeta> as the first child of the root element in the page's main return.
• Do not add it to early/loading returns (spinner-only returns). The global fallback covers those.
• Do not wrap the entire page in <PageMeta> — it is an inline element, not a wrapper.

// CORRECT — inline inside root element
return (
  <section>
    <PageMeta title="..." />
    <div>...</div>
  </section>
)

// WRONG — do not use as a wrapper
return (
  <PageMeta title="...">
    <section>...</section>
  </PageMeta>
)

---

Title convention

Page type	Pattern	Example
List	{Entity} - STARR	Courses - STARR
Archived list	Archived {Entity} - STARR	Archived Courses - STARR
Create	Add {Entity} - STARR	Add Course - STARR
View (dynamic)	{name} - STARR	Intro to Sales - STARR
Edit (dynamic)	Edit: {name} - STARR	Edit: Intro to Sales - STARR
Sub-list	{SubEntity} – {parentName} - STARR	Units – Intro to Sales - STARR
Nested action	{Action} – {parentName} - STARR	Page Builder – Lesson 1 - STARR

---

Adding metadata to a new page — checklist

1. Import PageMeta from @/contexts/MetadataContext.
2. Identify what data (if any) drives the title — context state, local state, or nothing.
3. Place <PageMeta title="..." /> as the first child of the root element in the main return.
4. Use the title convention above.
5. Pass description if the page has meaningful content to describe (e.g. a course description).
6. Pass title={undefined} (or omit title) while data is still loading.

---

MetadataProvider (legacy)

Login.jsx and Register.jsx still use the old wrapper pattern via MetadataProvider. This is a backward-compat shim that internally renders <PageMeta {...value} /> and then its children. It works but should not be used for new pages — use the inline <PageMeta /> pattern instead.

// Old pattern (Login / Register only — do not copy for new pages)
<MetadataProvider value={{ title: 'Login - Philproperties', description: '...' }}>
  <LoginContent />
</MetadataProvider>

// New pattern (use this for all new pages)
<section>
  <PageMeta title="Login - Philproperties" description="..." />
  <LoginContent />
</section>