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fix: promo group discount applied to restricted tariffs in autopay

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The pricing engine applied promo group discounts unconditionally,
without checking if the tariff is available for the user's promo group.

In autopay: user with VIP group (60% discount, restricted to Premium
tariff) would get 60% off when auto-renewing a Basic tariff that their
group should not cover.

Fix: in _calculate_tariff_core, check tariff.is_available_for_promo_group
before applying group discounts. If tariff is not available for the
user's promo group, the discount is zeroed — subscription renews at
full price. Protects ALL pricing paths (autopay, recurrent, manual).
This commit is contained in:
Fringg
2026-04-29 07:09:55 +03:00
parent fb857d792b
commit 4ab5928b61
1 changed files with 3 additions and 0 deletions
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app/services/pricing_engine.py
+3
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@@ -603,6 +603,9 @@ class PricingEngine:
period_pct = 0
devices_pct = 0
promo_group = self.resolve_promo_group(user)
# Only apply promo group discount if the tariff is available for this group
if promo_group is not None and not tariff.is_available_for_promo_group(promo_group.id):
promo_group = None
if promo_group is not None:
period_pct = promo_group.get_discount_percent('period', period_days)
devices_pct = promo_group.get_discount_percent('devices', period_days)