From cadc3cd26a5dd0fd8707fee3e5760dfdc71c5666 Mon Sep 17 00:00:00 2001
From: vchikalkin <djchikalkin@gmail.com>
Date: Tue, 2 Sep 2025 20:13:10 +0300
Subject: [PATCH] feat(subscriptions): add trial period validation for
 subscriptions

- Implemented a check to verify if a user has already utilized their trial period before allowing access to subscription services.
- Enhanced error handling to provide a clear message when a trial period has been previously used, improving user experience and subscription management.
---
 packages/graphql/api/subscriptions.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/packages/graphql/api/subscriptions.ts b/packages/graphql/api/subscriptions.ts
index ded79d6..084b892 100644
--- a/packages/graphql/api/subscriptions.ts
+++ b/packages/graphql/api/subscriptions.ts
@@ -44,6 +44,22 @@ export class SubscriptionsService extends BaseService {
     // Получаем пользователя и проверяем бан
     const { customer } = await this.checkIsBanned();
 
+    // Проверяем, не использовал ли пользователь уже пробный период
+    const { subscription: existingSubscription } = await this.getSubscription({
+      telegramId: customer.telegramId,
+    });
+    if (existingSubscription) {
+      // Проверяем, есть ли в истории успешная пробная подписка
+      const hasUsedTrial = existingSubscription.subscriptionHistories?.some(
+        (item) =>
+          item?.period === GQL.Enum_Subscriptionhistory_Period.Trial &&
+          item?.state === GQL.Enum_Subscriptionhistory_State.Success,
+      );
+      if (hasUsedTrial) {
+        throw new Error('Пробный период уже был использован');
+      }
+    }
+
     // Получаем цены подписки для определения длительности пробного периода
     const { subscriptionPrices } = await this.getSubscriptionPrices({ isActive: true });
     if (!subscriptionPrices) throw new Error('Subscription prices not found');