# Stage 5 — Final Validation and Delivery Report

Date: 2026-08-15  
Scope: final regression validation and production-delivery cleanup after Stages 1–4.

## 1. Main Bottlenecks Found

- The historical storefront bottlenecks were broad catalogue queries, repeated model loading, and uncached catalogue/navigation data. Stages 1–3 addressed those paths; the final warm-kernel samples confirm substantially fewer queries.
- The two checkout components had separate order-writing implementations. They accepted client-held cart prices, did not lock stock/cart rows, and one delete action could address a cart by product rather than cart identity. They now share one transaction service.
- Upload URLs were cached forever but uploads did not invalidate their cache key when saved or deleted. A stale header-logo cache entry could therefore render the homepage URL as an image. Upload model events now invalidate the exact key, and the header has a text fallback.
- The admin dashboard still has more CPU work than catalogue pages because it aggregates dashboard data and records Pulse telemetry. Its SQL sample is bounded (13 queries), not an N+1 pattern.

## 2. Database Optimizations

- The Stage 1 index migration is applied and covers high-use visitor, product, category/brand, cart, order, review, upload, and user lookup paths. `php artisan migrate:status` reports every migration as applied.
- Final detailed query review found no per-item N+1 loop on the public product page (18 queries), category page (15), admin product list (12), or admin dashboard (13). The category route makes one inexpensive duplicate category-slug lookup during route/component resolution; it is not multiplied by the product count.
- `OrderPlacementService` locks the owned cart rows and each affected product/variation row inside a database transaction. It re-prices from the locked record, checks stock, decrements stock, creates order/details, and removes carts atomically.
- Transaction regression checks used rollbacks, leaving no test orders, carts, or stock changes. They verified current-price use rather than cart-price tampering, stock rollback, empty-cart duplicate prevention, and preserving a cart when stock validation fails.

## 3. Laravel Optimizations

- Verified `config:cache`, `route:cache`, and `view:cache` successfully with the production dependency set.
- Public settings, sections, catalogue filters, navigation, brands, uploads, and SEO data use scoped cache keys with targeted invalidation. A rollback-based test verified product, category, setting, and homepage-section invalidation without clearing unrelated cache data.
- Moved all checkout writes into `App\Services\OrderPlacementService`; both checkout UIs now call it rather than maintaining duplicate business logic.
- Cart updates and removals are ownership-scoped, product/variation stock is validated before cart changes, and the product page treats variations as separate cart identities.
- The admin cache-clear action no longer runs database migrations. Schema changes remain an explicit deployment operation.
- Queue configuration is currently `sync`; `php artisan queue:failed` reported no failed jobs. Queueable notification/sitemap work remains compatible with a database or Redis worker in production.

## 4. Frontend Optimizations

- Stage 3 removed duplicate legacy libraries and limited optional effects to the pages that use them. The final Vite production build completed successfully (main CSS 41.26 kB / 9.82 kB gzip; Bootstrap CSS 194.15 kB / 27.26 kB gzip).
- Headless desktop and mobile browser checks rendered storefront, product, login, and registration pages without JavaScript console errors. The final mobile home and registration checks also passed after the last template changes.
- Registration and cart/checkout fields now expose useful autocomplete and accessible labels. Images tested on home, product, login, and registration pages have meaningful `alt` text; 10 locally served image URLs returned HTTP 200 with an image content type.
- Replaced legacy broken authentication images and made the header resistant to a missing upload record instead of emitting an invalid root-page image URL.

## 5. Deleted Files

- Earlier stages removed duplicate frontend sources, source maps, stale generated assets, repository metadata/caches, debug artefacts, and redundant sitemap files; see `stage-4-cleanup-report.md` for the complete inventory.
- Generated `node_modules`, `public/build`, transient PHPUnit/cache files, and compiled Laravel caches have been removed. The sanitized `.env.example` is retained. Deleting the real `.env` is the only remaining delivery action and awaits explicit confirmation because it contains live configuration.
- Customer uploads, public media references, and `.well-known` files are preserved.

## 6. Deleted Code

- Removed the duplicated order-placement implementations from the two Livewire checkout components and replaced them with one transactional service.
- Removed the unsafe migration call from the admin cache-clear HTTP action.
- Removed incorrect product-page schema search URL output and fragile home/category metadata fallbacks.

## 7. Dependency Cleanup

- The final `composer install --no-dev --optimize-autoloader --no-interaction` completed and removed development-only packages, including PHPUnit, Collision, Tinker, Sail, Pint, Faker, Mockery, and Whoops.
- Previous stages removed Debugbar and unused Axios. Production autoload generation completed successfully.
- `composer validate --no-check-publish` passed with one non-blocking warning: `jenssegers/agent` uses an unbounded version constraint. Composer also reports existing Carbon class-map ambiguity warnings from transitive packages. Neither caused a runtime failure; review them on the next planned dependency update rather than changing locked packages during release validation.

## 8. Benchmark Comparison

Measurements use the same local Laravel HTTP-kernel method as Stage 1. They are one warm sequential sample against the current local database; they are useful regression indicators, not a production load test. Pulse telemetry contributes some termination-time SQL.

| Route | Stage 1 baseline | Stage 5 warm sample | Query count (before → after) |
| --- | ---: | ---: | ---: |
| Home | 433.60 ms | 177.80 ms | 38 → 6 |
| Category | 1082.43 ms | 289.20 ms | 41 → 15 |
| Product | 319.17 ms | 85.41 ms | 20 → 18 |
| Shop | 500.75 ms | 90.27 ms | 37 → 13 |
| Search | 808.51 ms | 56.19 ms | 15 → 13 |
| Cart | 561.19 ms | 28.70 ms | 9 → 7 |

The public responses in the warm sample were 99–115 kB of HTML. The local test cannot verify Apache/Nginx compression or real browser cache hit rates; enable and measure those on the production server.

## 9. Testing

- `php artisan test`: **4 passed, 11 assertions**.
- PHP syntax checks passed for every Stage 5 PHP change.
- Blade view compilation passed after the final template updates.
- `npm.cmd ci` and `npm.cmd run build` completed successfully before final artifact cleanup.
- Production Composer installation, configuration cache, route cache, and view cache all completed successfully.
- Transaction tests were rollback-isolated and verified price integrity, stock validation, cart deletion, duplicate-submit prevention, and target cache invalidation.

## 10. Functional Verification

- Home, category, product, shop, sitemap, robots, login, and registration pages returned HTTP 200 through the local server under production caches.
- Anonymous `/admin/products` returns HTTP 302 to `/login`; protected customer routes also redirect to login when unauthenticated.
- A seeded administrator successfully rendered the dashboard, product list, and order list through the HTTP kernel.
- The checkout transaction creates order/details and stock changes only as one unit. It uses the current product price (not the cart's mutable stored price) and rolls everything back when validation fails.
- The local database has no customer accounts, existing carts/orders, or product-variation stock fixtures. Full browser checkout with an actual payment provider and a variant product should be run in staging with representative data before launch.

## 11. SEO Verification

- Home, category, and product pages each render an appropriate title, description, canonical URL, and exactly one visible/semantic page H1. Home and product JSON-LD render successfully.
- The home WebSite search action and product schema search target now match the actual `/shop?query=` route.
- `/sitemap.xml` and `/robots.txt` both return HTTP 200. Public pages checked do not emit `noindex`.
- SEO report/crawl tasks remain scheduled; monitor their outputs with production credentials and real public DNS.

## 12. Security Preservation

- Admin route groups retain `auth`, license, and system-access middleware; policy gates remain on admin product routes.
- Unauthenticated admin/customer access redirects to login. POST attempts without CSRF tokens returned HTTP 419 for product-review and admin-product-update endpoints.
- Checkout hardening now uses server-side prices, transaction row locks, stock checks, ownership-scoped carts, and generic checkout failure messages.
- No compiled configuration containing environment values, logs, backups, or source maps remain. The real `.env` remains only until its deletion is explicitly confirmed; do not distribute it with the project.

## 13. Production Deployment Commands

Run these on the deployment host after copying the package and creating a real, private `.env` from `.env.example`:

```powershell
composer install --no-dev --optimize-autoloader --no-interaction
php artisan migrate --force
php artisan optimize:clear
php artisan config:cache
php artisan route:cache
php artisan view:cache
```

Build frontend assets in CI or on a build host only when that deployment uses the Vite bundle:

```powershell
npm ci
npm run build
```

For an asynchronous queue backend, keep one supervised worker and the scheduler running:

```powershell
php artisan queue:work --queue=default,sms --tries=3 --timeout=90
php artisan schedule:work
```

Do not run `config:cache` before creating the real deployment `.env`; configuration cache embeds environment-derived values. Do not commit that `.env` or compiled cache file.

## 14. Remaining Server-Level Recommendations

- Serve only the `public` directory, set correct filesystem ownership, use HTTPS, and set the production `APP_URL`, mail, database, license, and third-party credentials in the private `.env`.
- Enable HTTP compression, long-lived immutable cache headers for hashed/static assets, OPcache, and a supported PHP production configuration. Measure TTFB/LCP against real traffic after deployment.
- Use Redis (or the database queue with a supervisor) for cache/session/queue workloads as traffic grows; the current local queue driver is synchronous.
- Take a database backup and run migrations as a deliberate deployment step; never expose migration execution through an administrative cache-clear button.
- Add representative customer, order, and variant-stock fixtures to staging for payment, variation, concurrency, and email/SMS acceptance tests.
- Review the unbounded `jenssegers/agent` constraint and Carbon class-map warning during the next dependency maintenance window.

Related reports: `stage-1-baseline.md`, `stage-2-runtime-report.md`, `stage-3-frontend-report.md`, and `stage-4-cleanup-report.md` in this directory.
