refactor(payments): extract subscription purchase processing to a service

This commit is contained in:
2026-08-03 10:05:21 +07:00
parent 74e952698b
commit dee2cad540
2 changed files with 191 additions and 238 deletions

179
services/payments.py Normal file
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import hashlib
import hmac
import logging
import math
from datetime import UTC, datetime
from config import cfg
from db.models.orders import OrderStatus
from db.models.transactions import BalanceTransaction, BalanceTxType
from external.rw import sync_subscription_by_telegram_id
from repositories import AddonsRepository
from repositories.invoices import InvoiceRepository
from repositories.orders import OrderRepository
from repositories.pricing import PricingRepository
from repositories.users import UserRepository
from schemas.invoices import InvoiceStatus
from services.plans import get_pricing_model
from services.subscriptions import (
apply_order_now,
deduct_order_balance,
queue_order_for_later,
should_apply_immediately,
)
logger = logging.getLogger(__name__)
def validate_pally_signature(out_sum: str, inv_id: str, signature_value: str) -> bool:
raw_string = f"{out_sum}:{inv_id}:{cfg.pally_token}"
expected_signature = hashlib.md5(raw_string.encode("utf-8")).hexdigest().upper()
return hmac.compare_digest(signature_value, expected_signature)
async def process_subscription_purchase( # noqa: PLR0911, PLR0912
session,
*,
invoice_id: int,
trs_id: str,
amount: int,
) -> None:
invoice_repo = InvoiceRepository(session)
orders_repo = OrderRepository(session)
users_repo = UserRepository(session)
pricing_repo = PricingRepository(session)
invoice = await invoice_repo.get_by_id(invoice_id)
if not invoice:
logger.critical("Bill %s not found in database for TrsId %s", invoice_id, trs_id)
return
if invoice.status != InvoiceStatus.ACTIVE:
logger.warning(
"Bill %s (TrsId: %s) is already processed with status: %s",
invoice.id,
trs_id,
invoice.status,
)
return
if invoice.amount != amount:
logger.error(
"Amount mismatch for bill %s (TrsId: %s) - Expected: %s, Received: %s",
invoice.id,
trs_id,
invoice.amount,
amount,
)
return
if invoice.order_id is None:
logger.critical("Invoice %s has no linked order for TrsId %s", invoice.id, trs_id)
return
order = await orders_repo.get_by_id(invoice.order_id)
if order is None:
logger.critical(
"Order not found for bill %s (TrsId: %s, user_id=%s, order_id=%s)",
invoice.id,
trs_id,
invoice.creator_id,
invoice.order_id,
)
return
if order.user_id != invoice.creator_id:
logger.critical(
"Order %s does not belong to invoice creator %s for TrsId %s",
order.id,
invoice.creator_id,
trs_id,
)
return
user = await users_repo.get_user_by_id(invoice.creator_id)
if user is None:
logger.critical("User %s not found for TrsId %s", invoice.creator_id, trs_id)
return
subscription = user.subscription
now = datetime.now(UTC)
pricing = await get_pricing_model(AddonsRepository(session), pricing_repo)
logger.info(
"Processing payment: bill_id=%s, order_id=%s, user_id=%s, amount=%s",
invoice.id,
order.id,
invoice.creator_id,
amount,
)
order.status = OrderStatus.PAID
invoice.status = InvoiceStatus.PAID
if order.balance_amount > 0:
await deduct_order_balance(
session,
user=user,
order=order,
description=f"order {order.id} partial payment from balance",
)
if should_apply_immediately(
subscription=subscription,
order=order,
pricing=pricing,
now=now,
):
applied_subscription = await apply_order_now(
session, user=user, order=order, pricing=pricing, now=now
)
await sync_subscription_by_telegram_id(
expires_at=applied_subscription.expires_at,
devices=applied_subscription.devices,
telegram_id=user.telegram_id,
username=user.username,
)
else:
if subscription is None:
logger.critical(
"Cannot queue order %s without subscription for user %s", order.id, user.id
)
return
await queue_order_for_later(order=order, subscription=subscription, now=now)
referal_id = user.referal_id
if referal_id is not None:
referal_amount = math.floor(amount * (cfg.referal_bonus / 100))
if referal_amount > 0:
referal_user = await session.get(type(user), referal_id)
if referal_user is not None:
session.add(
BalanceTransaction(
user_id=referal_id,
amount=referal_amount,
tx_type=BalanceTxType.REFERRAL_BONUS,
balance_before=referal_user.balance,
balance_after=referal_user.balance + referal_amount,
description=f"referral reward for user {invoice.creator_id} (TrsId: {trs_id})",
)
)
referal_user.balance += referal_amount
logger.info(
"Referral bonus processed: referrer_id=%s, amount=%s",
referal_id,
referal_amount,
)
else:
logger.warning(
"Referrer %s not found for user_id=%s while processing TrsId %s",
referal_id,
invoice.creator_id,
trs_id,
)
await session.commit()
logger.info("Bill %s marked as PAID for TrsId %s", invoice_id, trs_id)