# POS Project Audit + Safe Update Report

## What was updated without changing existing file/folder names

The following existing files were updated in place:

- `routes/web.php`
- `app/Http/Controllers/Admin/ProductController.php`
- `app/Http/Controllers/Admin/PurchaseController.php`
- `app/Http/Controllers/Admin/SaleController.php`
- `app/Http/Controllers/Admin/SaleReturnController.php`
- `app/Http/Controllers/Admin/SupplierReturnController.php`
- `resources/views/admin/sales/form.blade.php`
- `resources/views/admin/sales/invoice.blade.php`
- `resources/views/admin/purchases/index.blade.php`
- `database/migrations/2026_03_16_000107_create_customers_table.php`
- `database/migrations/2026_03_16_000108_create_purchase_items_table.php`

One additional migration was added for safer schema normalization:

- `database/migrations/2026_03_17_000001_fix_pos_schema_conflicts.php`

## Fixed now

### 1) Broken routes / dead links fixed
Added missing routes for:
- Purchase details page
- Sale invoice edit/update/delete
- Customer return show/delete
- Supplier return show/delete

### 2) Product resource route conflict reduced
The `products` resource no longer generates an unused `show` route.

### 3) Invoice page fixed
`SaleController@invoice()` now passes:
- `$sales`
- `$invoiceNo`
- `$summary`

So `resources/views/admin/sales/invoice.blade.php` can render correctly.

### 4) Sale edit flow added
Added basic single-line invoice edit/update support while preserving current project structure.

### 5) Sale delete flow added
Deleting an invoice now restores stock and records stock movement.

### 6) Purchase details page activated
`PurchaseController@show()` now loads `items` and renders existing `resources/views/admin/purchases/show.blade.php`.

### 7) Return list counts fixed
Both return index controllers now use `withCount('items')`.

### 8) Return detail and delete actions fixed
Show and destroy methods were added for both customer and supplier returns.

### 9) Duplicate migration crash risk reduced
Added `Schema::hasTable()` guard to duplicate legacy migrations for:
- customers
- purchase_items

## Important issues still remaining

These are still important and should be completed next:

### A. Purchase module is still summary-only
The current purchase form still does **not** save item-wise purchase lines.
That means:
- `purchase_items` is not populated from the purchase form
- stock is not increased from purchase entry
- supplier return depends on purchase items that may not exist

### B. Multi-line sale editing is still limited
The current updated form supports the existing single-line workflow safely.
If an invoice contains multiple rows, edit is intentionally blocked to avoid corrupting invoice data.

### C. Schema normalization is still partial
There are legacy boolean/string status differences in earlier migrations.
The new normalization migration reduces future breakage, but a full migration cleanup is still recommended before live deployment on a fresh server.

### D. Environment / install test could not be completed in this container
Attempted migration test failed because the environment is configured for MySQL and the required database driver is unavailable in the current container.
So route/controller syntax was verified, but full DB boot test could not be completed here.

## Recommended next phase

1. Convert purchase entry into item-based purchase save flow
2. Auto-create `purchase_items`
3. Auto-increase product stock from purchase
4. Add proper payment/due handling for purchases
5. Clean all legacy migrations into one stable install path
6. Add seed/demo data and full fresh-install test

