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feat(discount): apply a discount rule to a session with audit

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Extend PatientService::applyDiscount to carry the source rule id/label and
add applyDiscountRule, which computes the rial amount via the engine
(DiscountEngine::computeForRule now public) and records the rule for audit.
updateSession accepts discount_rule_uuid (owner-scoped, takes precedence over
the manual discount; ''/null clears). Verified end-to-end.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
hamed
2026-07-17 11:55:16 +03:30
co-authored by Claude Fable 5
parent 6cc42c941e
commit b3b1dad832
4 changed files with 62 additions and 15 deletions
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src/Patient/Service/PatientService.php
+25 -4
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@@ -50,6 +50,7 @@ class PatientService
private readonly BillingCalculator $billingCalculator,
private readonly WalletService $walletService,
private readonly EntityInsurancePricingRepository $pricingRepo,
private readonly \App\Discount\Service\DiscountEngine $discountEngine,
) {}
/**
@@ -268,7 +269,7 @@ class PatientService
* type=null → حذف تخفیف. percent باید 0..100 و fixed حداکثر برابر مبلغ نهایی باشد.
* تخفیف نمی‌تواند از مانده‌ی قابل‌تخفیف (مبلغ نهایی منهای پرداخت‌های ثبت‌شده) بیشتر شود.
*/
public function applyDiscount(PatientSession $session, ?string $type, int $value): PatientSession
public function applyDiscount(PatientSession $session, ?string $type, int $value, ?int $ruleId = null, ?string $ruleLabel = null): PatientSession
{
if ($type === null) {
$session->setDiscount(null, 0, 0);
@@ -298,15 +299,35 @@ class PatientService
throw new AppException(ErrorCodes::ERR_SESSION_DISCOUNT_INVALID, null, 422, 'discount_value');
}
$session->setDiscount($type, $value, $rials);
$this->persistDiscount($session, $type, $value, $rials, $ruleId, $ruleLabel);
return $session;
}
/**
* اعمال یک قانون تخفیف روی مراجعه؛ مبلغ ریالی از موتور (با در نظر گرفتن نوع/مبنا)
* محاسبه و منبع قانون برای audit ثبت می‌شود.
*/
public function applyDiscountRule(PatientSession $session, \App\Discount\Entity\DiscountRule $rule): PatientSession
{
$rials = $this->discountEngine->computeForRule($session, $rule);
if ($rials <= 0) {
throw new AppException(ErrorCodes::ERR_SESSION_DISCOUNT_INVALID, null, 422, 'discount_rule_uuid');
}
$this->persistDiscount($session, $rule->getDiscountType(), $rule->getValue(), $rials, $rule->getId(), $rule->getName());
return $session;
}
private function persistDiscount(PatientSession $session, string $type, int $value, int $rials, ?int $ruleId, ?string $ruleLabel): void
{
$session->setDiscount($type, $value, $rials, $ruleId, $ruleLabel);
if ($session->getRemainingRials() === 0 && $session->getPaymentMethod() === 'pending') {
// تخفیف صددرصدی بدهی را صفر کرد — مراجعه تسویه‌شده تلقی می‌شود
$session->setPaymentMethod('cash');
$session->setPaidAt(time());
}
$this->sessionRepo->save($session);
return $session;
}
/**