# El Captain Sports Management

Modular ERP for sports organisations. Activity-agnostic: any sport is a
configuration of the same business model.

**Stack:** Laravel 13 / PHP 8.4 · PostgreSQL 16 · Livewire 3 + Alpine + Tailwind ·
Arabic-first (`ar` default, bilingual) · CapRover deploy.

**Layout:** `app/Domain/{Module}/{Models,Services,Events,Enums}`,
`app/Domain/Shared/Traits`, `app/Livewire/{Feature}`, `resources/views/website`.

---

## Deployment reality — read before writing any migration

Every client is **one CapRover app + one dedicated Postgres DB**, all building
from git **`main`**. There is no staging. `docker/entrypoint.sh` runs
`migrate --force` **and** `db:seed` on **every container start**.

Therefore, non-negotiable:
- Migrations are **additive**; guard every `up()` with `hasTable`/`hasColumn`.
- Destructive operations live in `down()` only — never in `up()`.
- Seeders must be **idempotent** and must never contain client-specific content.
- Any migration must be safe against every existing populated client DB.

## Hard invariants (violating these breaks production)

**Money** — all amounts are `bigInteger` **piasters**, never decimal/float.
150.00 EGP = `15000`. Convert only in `format_money()` for display. Integer
arithmetic only; when splitting, round down and give the remainder to the last item.

**Tenancy** — every domain model uses `BelongsToAcademy`. Every tenant table has
`academy_id`. Every unique constraint **includes `academy_id`**. Only
`academies`, `permissions`, and framework tables are exempt. SuperAdmin is the
only code path that may bypass the global scope.

**Financial** — every movement writes a **debit + credit pair**, amounts always
positive, `type` carries direction. `transactions` and `audit_logs` are
**immutable**: no `updated_at`, no soft deletes, corrections are new reversing
entries. Invoice totals freeze at creation.

**Inventory** — never touch `inventory_levels.quantity_on_hand` directly. All
changes go through `InventoryService::createMovement()`, which locks the row and
records before/after. Stock may reach 0, never negative.

**Pricing** — no fixed prices; every price is computed at sale time. **No active
base price = hard fail** (throw, block the sale, show `لا يوجد سعر محدد`).
Never default to 0 or guess. Prices on an issued invoice are frozen forever.

**Schema** — migration first, always. Model `$fillable`/`$casts` are copied from
the migration, never typed from memory. Status/type columns get a CHECK
constraint whose values match the PHP enum **character for character**.

**Services** — all writes in `DB::transaction`. Never call `auth()`, `request()`
or `session()` inside a service; receive explicit params. Dispatch events for
side effects; never send mail/SMS/notifications inline. Inject collaborators via
the constructor.

**Status machines** — every stateful entity declares `VALID_TRANSITIONS` and
throws `InvalidStatusTransitionException` on an illegal move.

**Permissions** — gate at all five points: route middleware, Livewire `mount()`
`authorize()`, service scope check, Blade `@can`, and the list query scope. No
permission means the element is **not rendered**, never greyed out.

**Livewire** — lists use `WithPagination` + `#[Url]` + server-side pagination.
Forms authorize in `mount()`, have `rules()` matching the migration and
`messages()` in Arabic, wrap service calls in try/catch, and put loading states
on every submit button.

**RTL / Arabic** — Arabic is the default. Always use logical Tailwind properties
(`ms/me/ps/pe`, `text-start/end`, `start-*/end-*`, `border-s/e`), never
`ml/mr/pl/pr/left/right`. Numeric inputs get `dir="ltr"`. All user-facing strings
go through `__()`. Font: Cairo.

**Links** — `href="#"` is forbidden. Use `route()`; if a feature isn't built,
don't render the link. Editor-supplied URLs must pass through `safe_url()`.

**Security** — any HTML from an editor renders through `clean_html()`. Never
interpolate a value into an Alpine expression with quotes — use `@js()`.

## Detailed rules

Full versions live in `docs/agent-rules/` — **read the relevant file before
working in that area**, don't rely on the summary above:

| File | Covers |
|---|---|
| `01-migration-first` `16-enums-and-checks` | schema, CHECK constraints, full enum registry |
| `02-multi-tenancy` `10-permissions` | scoping, roles, permission format |
| `03-money-handling` `05-financial-integrity` | piasters, double-entry, invoices, refunds |
| `04-services-and-events` `06-status-transitions` | service pattern, state machines |
| `07-inventory-movements` `13-pos-workflow` | movement types, the 10-step POS flow |
| `08-rtl-arabic` `09-livewire-alpine` | RTL, component structure, Alpine scoping |
| `11-attendance-engine` `18-space-collision` | attendance rules, collision detection |
| `12-pricing-engine` | 10-step resolution order, 13 rule types |
| `14-build-order` `15-integration-checks` | build sequence, pre-commit checklists |
| `17-audit-and-notifications` | audit immutability, notification flow |

Architecture docs: `docs/00-*` … `docs/10-public-website-builder.md`.

## Commands

```bash
php artisan serve
php artisan migrate
php artisan tinker
php artisan website:blueprint export|import --file=…
```

Dev login: `admin@oc-sport.com`

## Working style

- One vertical slice at a time: migration → model → service → Livewire → view → verify.
- Verify before claiming done. Run the command, show the output.
- Keep tool output small: `grep -o` for names, `head -c` (not `head -n`) for
  minified payloads, and never `cat` a file you only need one symbol from.
