# SAM API 개발 규칙

**업데이트**: 2025-11-10

---

## 1. Architecture Philosophy

- **Service First**: All business logic must be written in Service classes (public functions)
- **Controller**: Only responsible for DI injection of Services and calling them. Use ApiResponse::handle() for responses
- **Exception Flow**: Errors are thrown → converted to JSON by global handler
- **Context Enforcement**: Base Service requires tenantId(), apiUserId(). Throws exception if not set

---

## 2. Multi-tenancy & Models

- BelongsToTenant global scope applied
- ModelTrait for is_active, date handling
- SoftDeletes by default
- Common columns: tenant_id, created_by, updated_by, deleted_by (COMMENT required)
- FK constraints: Created during design, minimal in production

### 2.1 ModelTrait 사용 가이드

`ModelTrait`는 모든 모델에서 공통으로 사용하는 기능을 제공합니다.

**위치**: `app/Traits/ModelTrait.php`

**제공 기능**:
```php
// 1. 날짜 직렬화 포맷 (Y-m-d H:i:s)
protected function serializeDate(DateTimeInterface $date)

// 2. Active 상태 조회 Scope
public function scopeActive($query)
// 사용: Model::active()->get()
// SQL: WHERE is_active = 1
```

**⚠️ 필수 요구사항**:

`scopeActive()` 메서드 사용 시 테이블에 `is_active` 컬럼이 **반드시 존재해야 함**

```sql
-- 마이그레이션 예시
$table->boolean('is_active')
    ->default(true)
    ->comment('활성화 여부 (ModelTrait::scopeActive() 사용)');
```

**모델 설정**:
```php
class YourModel extends Model
{
    use BelongsToTenant, ModelTrait, SoftDeletes;

    protected $fillable = [
        // ...
        'is_active',  // 반드시 추가
    ];

    protected $casts = [
        'is_active' => 'boolean',  // 반드시 추가
    ];
}
```

**is_active 컬럼 적용 테이블** (2025-12-05 기준):
| 테이블 | is_active | 비고 |
|--------|-----------|------|
| materials | ✅ 있음 | |
| products | ✅ 있음 | |
| item_pages | ✅ 있음 | |
| item_fields | ✅ 있음 | 2025-12-05 추가 |
| item_sections | ❌ 없음 | 필요시 마이그레이션 추가 |

---

## 3. Middleware Stack

- ApiKeyMiddleware, CheckSwaggerAuth, CorsMiddleware, CheckPermission, PermMapper
- Default route group: auth.apikey (some with auth:sanctum)

---

## 4. Routing (v1)

- Auth, Common codes, Files, Tenants, Users (me/tenants/switch), Menus+Permissions, Roles/Permissions, Departments, Field settings, Options, Categories, Classifications, Products, BOM
- REST conventions: index/show/store/update/destroy + extensions (toggle, bulkUpsert, reorder)

---

## 5. Controller/Service Rules

- **Controller**: FormRequest type-hint → only pass $request->validated() to Service
- **Service**: extends Service, tenantId()/apiUserId() required
- **Lists**: Pagination, explicit search parameters
- **Responses**: {success, message, data}, message must be i18n key only

---

## 6. i18n & Response Messages

- Messages: lang/{locale}/message.php
- Errors: lang/{locale}/error.php
- **Rule**: No direct strings, must use __('message.xxx'), __('error.xxx')
- Common keys: message.fetched/created/updated/deleted/bulk_upsert/reordered
- Resource-specific keys allowed: message.product.created, message.bom.bulk_upsert

---

## 7. Validation (FormRequest)

- **No direct validate() calls**. Separate all into FormRequest classes
- **Reuse common Requests**: PaginateRequest, BomItemsRequest, DateRangeRequest
- **Boundary validation** (effective_from ≤ effective_to) in Request

---

## 8. Audit Logging

- **Table**: audit_logs (tenant_id, target_type, target_id, action, before/after(json), actor_id, ip, ua, created_at)
- **Actions**: created, updated, deleted, released, cloned, items_replaced, diff_viewed
- **Retention**: 13 months default, audit:prune scheduler cleanup
- **Failure tolerance**: Log failures don't block business operations

---

## 9. Domain Rules

- **Status**: Strings (DRAFT/RELEASED/ARCHIVED)
- **Unique/Indexes**: models(code), model_versions(version_no), bom_items(parent, order)
- **BOM**: Supports summary/validate/bulkUpsert/reorder

---

## 개발 시 필수 체크

```
✓ Service-First 패턴 (Controller는 단순)
✓ BelongsToTenant scope 적용
✓ ModelTrait 사용
✓ SoftDeletes 적용
✓ FormRequest 검증
✓ i18n 키 사용 (__('message.xxx'))
✓ 감사 로그 고려
✓ tenant_id 필터링 확인
```