78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
import logging
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from sqlalchemy.ext.asyncio import AsyncSession
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from typing import Optional, Tuple, Dict
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from aiogram import Bot
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from config.settings import Settings
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from db.dal import promo_code_dal, user_dal, subscription_dal
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from db.models import PromoCode, User
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from .subscription_service import SubscriptionService
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from bot.middlewares.i18n import JsonI18n
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class PromoCodeService:
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def __init__(self, settings: Settings,
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subscription_service: SubscriptionService, bot: Bot,
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i18n: JsonI18n):
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self.settings = settings
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self.subscription_service = subscription_service
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self.bot = bot
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self.i18n = i18n
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async def apply_promo_code(self, session: AsyncSession, user_id: int,
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code_input: str,
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user_lang: str) -> Tuple[bool, str]:
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_ = lambda k, **kw: self.i18n.gettext(user_lang, k, **kw)
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code_input_upper = code_input.strip().upper()
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promo_data = await promo_code_dal.get_active_promo_code_by_code_str(
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session, code_input_upper)
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if not promo_data:
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return False, _("promo_code_not_found", code=code_input_upper)
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existing_activation = await promo_code_dal.get_user_activation_for_promo(
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session, promo_data.promo_code_id, user_id)
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if existing_activation:
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return False, _("promo_code_already_used_by_user",
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code=code_input_upper)
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active_sub = await subscription_dal.get_active_subscription_by_user_id(
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session, user_id)
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if not active_sub:
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return False, _("promo_code_no_active_subscription")
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bonus_days = promo_data.bonus_days
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new_end_date = await self.subscription_service.extend_active_subscription_days(
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session=session,
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user_id=user_id,
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bonus_days=bonus_days,
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reason=f"promo code {code_input_upper}")
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if new_end_date:
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activation_recorded = await promo_code_dal.record_promo_activation(
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session, promo_data.promo_code_id, user_id, payment_id=None)
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promo_incremented = await promo_code_dal.increment_promo_code_usage(
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session, promo_data.promo_code_id)
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if activation_recorded and promo_incremented:
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return True, _("promo_code_applied_success",
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code=code_input_upper,
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bonus_days=bonus_days,
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new_end_date=new_end_date.strftime('%Y-%m-%d'))
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else:
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logging.error(
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f"Failed to record activation or increment usage for promo {promo_data.code} by user {user_id}"
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)
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return False, _("error_applying_promo_bonus")
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else:
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return False, _("error_applying_promo_bonus")
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