feat(story-5.3): add Stripe webhook subscription lifecycle handlers

- Add migration 125: subscription_current_period_end column
- Add PLAN_LIMITS config (free/pro_monthly/pro_yearly token + pages limits)
- Add subscription webhook handlers: created/updated/deleted, invoice payment
- Handle checkout.session.completed for subscription mode separately from PAYG
- Idempotency: subscription_id + status + plan_id + period_end guard
- pages_limit upgraded on activation, gracefully downgraded on cancel
- Token reset on subscription_create and subscription_cycle billing events
- Period_end forward-only guard against out-of-order webhook delivery

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Vonic 2026-04-15 00:43:07 +07:00
parent 07a4bc3fc3
commit 20c4f128bb
7 changed files with 381 additions and 27 deletions

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@ -1,6 +1,6 @@
# Story 5.3: Webhook & Cập nhật Trạng thái Gói cước (Stripe Webhook Sync)
Status: ready-for-dev
Status: done
## Story
@ -30,40 +30,33 @@ so that database được cập nhật trạng thái Subscription của user (Ac
## Tasks / Subtasks
- [ ] Task 1: Thêm Subscription Fields vào User Model (Backend DB)
- [ ] Subtask 1.1: Alembic migration thêm columns (nếu chưa có từ Story 3.5):
- `subscription_status` — Enum: `free`, `active`, `canceled`, `past_due` (default: `free`)
- `plan_id` — String nullable (e.g. `pro_monthly`, `pro_yearly`)
- `stripe_subscription_id` — String nullable, indexed
- `subscription_current_period_end` — DateTime nullable (để biết khi nào renewal)
- [x] Task 1: Thêm Subscription Fields vào User Model (Backend DB)
- [x] Subtask 1.1: Alembic migration thêm columns (nếu chưa có từ Story 3.5):
- `subscription_status` — Enum: `free`, `active`, `canceled`, `past_due` (default: `free`) ✅ migration 124
- `plan_id` — String nullable (e.g. `pro_monthly`, `pro_yearly`) ✅ migration 124
- `stripe_subscription_id` — String nullable, indexed ✅ migration 124
- `subscription_current_period_end` — DateTime nullable ✅ migration 125 (mới thêm)
- [ ] Task 2: Thêm Subscription Event Handlers vào Webhook (Backend)
- [ ] Subtask 2.1: Mở rộng webhook handler — thêm routing cho:
- [x] Task 2: Thêm Subscription Event Handlers vào Webhook (Backend)
- [x] Subtask 2.1: Mở rộng webhook handler — thêm routing cho:
- `customer.subscription.created` → activate subscription
- `customer.subscription.updated` → update status/plan (handle upgrade/downgrade)
- `customer.subscription.deleted` → set status=`canceled`, downgrade limits
- `invoice.payment_succeeded` → reset `tokens_used_this_month = 0` (billing cycle mới)
- `invoice.payment_failed` → set status=`past_due`
- [ ] Subtask 2.2: Tạo helper function `_handle_subscription_event(event, db_session)`:
- [x] Subtask 2.2: Tạo helper function `_handle_subscription_event(db_session, subscription)`:
- Extract `customer` ID từ event → query User by `stripe_customer_id`
- Update `subscription_status`, `plan_id`, `monthly_token_limit` theo plan
- Update `subscription_current_period_end`
- [ ] Subtask 2.3: Plan → Limits mapping (config):
```python
PLAN_LIMITS = {
"free": {"monthly_token_limit": 50_000, "pages_limit": 500},
"pro_monthly": {"monthly_token_limit": 1_000_000, "pages_limit": 5000},
"pro_yearly": {"monthly_token_limit": 1_000_000, "pages_limit": 5000},
}
```
- [x] Subtask 2.3: Plan → Limits mapping (config) — thêm `PLAN_LIMITS` vào `config/__init__.py`
- [ ] Task 3: Xử lý `checkout.session.completed` cho Subscription mode
- [ ] Subtask 3.1: Trong handler `checkout.session.completed` hiện tại, thêm check: nếu `session.mode == 'subscription'` → activate subscription thay vì grant pages.
- [ ] Subtask 3.2: Giữ logic PAYG cũ cho `session.mode == 'payment'`.
- [x] Task 3: Xử lý `checkout.session.completed` cho Subscription mode
- [x] Subtask 3.1: Trong webhook handler, check `session.mode == 'subscription'``_activate_subscription_from_checkout()`.
- [x] Subtask 3.2: Giữ logic PAYG cũ cho `session.mode == 'payment'`.
- [ ] Task 4: Idempotency cho Subscription Events
- [ ] Subtask 4.1: Dùng `stripe_subscription_id` + event timestamp để tránh duplicate processing.
- [ ] Subtask 4.2: Log tất cả webhook events để debug.
- [x] Task 4: Idempotency cho Subscription Events
- [x] Subtask 4.1: `_handle_subscription_event` so sánh `stripe_subscription_id + subscription_status + period_end` — skip nếu không đổi.
- [x] Subtask 4.2: Log tất cả webhook events qua `logger.info("Received Stripe webhook event: %s", event.type)`.
## Dev Notes
@ -77,3 +70,49 @@ Webhook endpoint **PHẢI** parse raw body bằng `await request.body()` TRƯỚ
- `surfsense_backend/app/routes/stripe_routes.py` — webhook handler hiện tại
- `surfsense_backend/app/db.py` — User model
- Stripe Subscription Events: https://stripe.com/docs/billing/subscriptions/webhooks
## Dev Agent Record
### Implementation Notes
- Migration 124 đã có `subscription_status`, `plan_id`, `stripe_customer_id`, `stripe_subscription_id` từ Story 3.5 — không cần migration lại.
- Migration 125 thêm `subscription_current_period_end` (TIMESTAMP with timezone, nullable).
- `PLAN_LIMITS` dict thêm vào `config/__init__.py` — free: 50k tokens, pro: 1M tokens.
- `_get_user_by_stripe_customer_id()`: SELECT FOR UPDATE để safe với concurrent webhooks.
- `_handle_subscription_event()`: map Stripe status → `SubscriptionStatus` enum, idempotency check bằng so sánh subscription_id + status + period_end.
- `_handle_invoice_payment_succeeded()`: chỉ reset tokens khi `billing_reason``subscription_cycle` hoặc `subscription_update`.
- `_handle_invoice_payment_failed()`: set `PAST_DUE` nếu hiện đang `ACTIVE`.
- `_activate_subscription_from_checkout()`: kích hoạt ngay khi checkout hoàn thành (trước khi `customer.subscription.created` đến); idempotent.
- Webhook routing: thêm `logger.info` cho mỗi event type, route `checkout.session.*expired/failed` bỏ qua nếu là subscription mode.
### Completion Notes
✅ AC 1: Webhook đã có signature verification từ trước — giữ nguyên.
✅ AC 2: Xử lý `customer.subscription.created/updated/deleted` qua `_handle_subscription_event()`.
✅ AC 3: Update `subscription_status`, `plan_id`, `monthly_token_limit`, `subscription_current_period_end`.
✅ AC 4: Reset `tokens_used_this_month = 0` qua `_handle_invoice_payment_succeeded()` khi `billing_reason=subscription_cycle`.
### File List
- `surfsense_backend/app/db.py` — added `subscription_current_period_end` column to both User model variants
- `surfsense_backend/alembic/versions/125_add_subscription_current_period_end.py` — new migration
- `surfsense_backend/app/config/__init__.py` — added `PLAN_LIMITS` dict
- `surfsense_backend/app/routes/stripe_routes.py` — added `_get_user_by_stripe_customer_id`, `_period_end_from_subscription`, `_handle_subscription_event`, `_handle_invoice_payment_succeeded`, `_handle_invoice_payment_failed`, `_activate_subscription_from_checkout`; updated webhook router
### Review Findings
- [x] [Review][Patch] pages_limit never upgraded to Pro value on subscription activation — both `_activate_subscription_from_checkout` and `_handle_subscription_event` only set `monthly_token_limit`, not `pages_limit` [stripe_routes.py]
- [x] [Review][Patch] pages_limit downgrade ignores pages_used — sets `pages_limit=500` blindly, should use `max(pages_used, free_limit)` to avoid locking out existing content [stripe_routes.py]
- [x] [Review][Patch] `_activate_subscription_from_checkout` does not set `subscription_current_period_end` — stays NULL until `customer.subscription.created` fires [stripe_routes.py]
- [x] [Review][Patch] `_activate_subscription_from_checkout` does not set `token_reset_date` — stays NULL until first renewal invoice [stripe_routes.py]
- [x] [Review][Patch] `date.today()` used instead of `datetime.now(UTC).date()` in `_handle_invoice_payment_succeeded` — timezone mismatch with quota service [stripe_routes.py]
- [x] [Review][Patch] Unconfigured price ID env vars cause silent fallback to `plan_id="free"` for paying subscribers — should log warning when no price match [stripe_routes.py]
- [x] [Review][Patch] Idempotency check omits `plan_id` — mid-cycle plan change (monthly→yearly) with same status+period_end gets silently skipped [stripe_routes.py]
- [x] [Review][Patch] `billing_reason="subscription_create"` excluded from token reset — new subscribers inherit dirty free-tier token counter [stripe_routes.py]
- [x] [Review][Patch] `billing_reason="subscription_update"` included in token reset — plan changes mid-cycle incorrectly reset tokens to 0 [stripe_routes.py]
- [x] [Review][Patch] Out-of-order webhook delivery can overwrite newer `period_end` with older value — no "don't go backwards" guard [stripe_routes.py]
- [x] [Review][Patch] `SubscriptionStatus.FREE` in downgrade check is dead code — remove from set [stripe_routes.py]
- [x] [Review][Patch] Repeated `invoice.payment_failed` while PAST_DUE silently ignored without logging [stripe_routes.py]
- [x] [Review][Defer] Race between `checkout.session.completed` and `customer.subscription.deleted` can reactivate canceled subscription — deferred, requires Stripe API verification call
- [x] [Review][Defer] `invoice.payment_succeeded` does not update `subscription_current_period_end` — deferred, handled by `customer.subscription.updated` in same event sequence
### Change Log
- 2026-04-15: Implement Stripe webhook subscription event handlers — subscription lifecycle, invoice payment reset, checkout activation.
- 2026-04-15: Code review patches applied — 12 fixes: pages_limit upgrade/downgrade, period_end guards, token reset billing reasons, idempotency plan_id check, UTC date fix, unrecognized price ID warning.

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@ -14,3 +14,8 @@
- Webhook handler needs to distinguish `mode='subscription'` from `mode='payment'` in `checkout.session.completed` and update User's `subscription_status`, `plan_id`, `stripe_subscription_id` — scope of Story 5.3.
- Subscription lifecycle events (`invoice.paid`, `customer.subscription.updated/deleted`, `invoice.payment_failed`) not handled — scope of Story 5.3.
- `_get_or_create_stripe_customer` can create orphaned Stripe customers if `db_session.commit()` fails after `customers.create`. Consider idempotency key in future.
## Deferred from: code review of story-5.3 (2026-04-15)
- Race condition: `checkout.session.completed` and `customer.subscription.deleted` can fire near-simultaneously; if deleted arrives between checkout handlers, subscription can be reactivated. Fix requires Stripe API call to verify subscription status before activation.
- `invoice.payment_succeeded` does not update `subscription_current_period_end` — currently relies on `customer.subscription.updated` firing in the same event sequence. If that event is lost, period_end is stale.

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@ -35,7 +35,7 @@
# - Dev moves story to 'review', then runs code-review (fresh context, different LLM recommended)
generated: 2026-04-13T02:50:25+07:00
last_updated: 2026-04-14T17:00:00+07:00
last_updated: 2026-04-15T00:14:00+07:00
project: SurfSense
project_key: NOKEY
tracking_system: file-system
@ -68,6 +68,6 @@ development_status:
epic-5: in-progress
5-1-pricing-plan-selection-ui: done
5-2-stripe-payment-integration: done
5-3-stripe-webhook-sync: ready-for-dev
5-3-stripe-webhook-sync: done
5-4-usage-tracking-rate-limit-enforcement: ready-for-dev
epic-5-retrospective: optional

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@ -0,0 +1,35 @@
"""125_add_subscription_current_period_end
Revision ID: 125
Revises: 124
Create Date: 2026-04-15
Adds subscription_current_period_end column to the user table for
tracking when the current billing period ends (Story 5.3).
Column added:
- subscription_current_period_end (TIMESTAMP with timezone, nullable)
"""
from __future__ import annotations
from collections.abc import Sequence
import sqlalchemy as sa
from alembic import op
revision: str = "125"
down_revision: str | None = "124"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None
def upgrade() -> None:
op.add_column(
"user",
sa.Column("subscription_current_period_end", sa.TIMESTAMP(timezone=True), nullable=True),
)
def downgrade() -> None:
op.drop_column("user", "subscription_current_period_end")

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@ -310,6 +310,13 @@ class Config:
os.getenv("STRIPE_RECONCILIATION_BATCH_SIZE", "100")
)
# Subscription plan limits
PLAN_LIMITS: dict[str, dict[str, int]] = {
"free": {"monthly_token_limit": 50_000, "pages_limit": 500},
"pro_monthly": {"monthly_token_limit": 1_000_000, "pages_limit": 5000},
"pro_yearly": {"monthly_token_limit": 1_000_000, "pages_limit": 5000},
}
# Auth
AUTH_TYPE = os.getenv("AUTH_TYPE")
REGISTRATION_ENABLED = os.getenv("REGISTRATION_ENABLED", "TRUE").upper() == "TRUE"

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@ -1976,6 +1976,7 @@ if config.AUTH_TYPE == "GOOGLE":
plan_id = Column(String(50), nullable=False, default="free", server_default="free")
stripe_customer_id = Column(String(255), nullable=True, unique=True)
stripe_subscription_id = Column(String(255), nullable=True, unique=True)
subscription_current_period_end = Column(TIMESTAMP(timezone=True), nullable=True)
# User profile from OAuth
display_name = Column(String, nullable=True)
@ -2104,6 +2105,7 @@ else:
plan_id = Column(String(50), nullable=False, default="free", server_default="free")
stripe_customer_id = Column(String(255), nullable=True, unique=True)
stripe_subscription_id = Column(String(255), nullable=True, unique=True)
subscription_current_period_end = Column(TIMESTAMP(timezone=True), nullable=True)
# User profile (can be set manually for non-OAuth users)
display_name = Column(String, nullable=True)

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@ -284,6 +284,243 @@ async def _fulfill_completed_purchase(
return StripeWebhookResponse()
# ---------------------------------------------------------------------------
# Subscription event helpers
# ---------------------------------------------------------------------------
async def _get_user_by_stripe_customer_id(
db_session: AsyncSession, customer_id: str
) -> User | None:
"""Fetch the User row for a given Stripe customer ID (with FOR UPDATE lock)."""
return (
(
await db_session.execute(
select(User)
.where(User.stripe_customer_id == customer_id)
.with_for_update(of=User)
)
)
.unique()
.scalar_one_or_none()
)
def _period_end_from_subscription(subscription: Any) -> datetime | None:
"""Extract current_period_end timestamp from a Stripe subscription object."""
ts = getattr(subscription, "current_period_end", None)
if ts is None:
return None
return datetime.fromtimestamp(int(ts), tz=UTC)
async def _handle_subscription_event(
db_session: AsyncSession, subscription: Any
) -> StripeWebhookResponse:
"""Handle customer.subscription.created / updated / deleted.
Idempotency: compares stripe_subscription_id + current_period_end so
duplicate events for the same billing period are no-ops.
"""
customer_id = _normalize_optional_string(getattr(subscription, "customer", None))
subscription_id = _normalize_optional_string(getattr(subscription, "id", None))
sub_status = str(getattr(subscription, "status", "")).lower()
period_end = _period_end_from_subscription(subscription)
# Determine plan from the first subscription item's price ID
plan_id: str = "free"
try:
items = getattr(subscription, "items", None)
if items:
item_data = getattr(items, "data", None) or []
if item_data:
price_id = str(getattr(item_data[0].price, "id", ""))
if price_id == config.STRIPE_PRO_YEARLY_PRICE_ID:
plan_id = "pro_yearly"
elif price_id == config.STRIPE_PRO_MONTHLY_PRICE_ID:
plan_id = "pro_monthly"
else:
logger.warning(
"Subscription %s has unrecognized price ID %s; defaulting to free limits",
subscription_id,
price_id,
)
except Exception: # noqa: BLE001
logger.warning("Could not parse plan from subscription %s", subscription_id)
if not customer_id:
logger.error("Subscription event missing customer ID for subscription %s", subscription_id)
return StripeWebhookResponse()
user = await _get_user_by_stripe_customer_id(db_session, customer_id)
if user is None:
logger.warning("No user found for Stripe customer %s; skipping subscription event", customer_id)
return StripeWebhookResponse()
# Map Stripe status → SubscriptionStatus enum
if sub_status == "active":
new_status = SubscriptionStatus.ACTIVE
elif sub_status in {"canceled", "incomplete_expired"}:
new_status = SubscriptionStatus.CANCELED
plan_id = "free"
elif sub_status == "past_due":
new_status = SubscriptionStatus.PAST_DUE
else:
# incomplete, trialing, unpaid → leave current status unchanged
logger.info(
"Ignoring subscription %s with unhandled Stripe status '%s'",
subscription_id,
sub_status,
)
return StripeWebhookResponse()
# Idempotency: skip if nothing meaningful changed
if (
user.stripe_subscription_id == subscription_id
and user.subscription_status == new_status
and user.plan_id == plan_id
and user.subscription_current_period_end == period_end
):
logger.info("Subscription %s already up-to-date; skipping", subscription_id)
return StripeWebhookResponse()
# Update subscription fields
user.stripe_subscription_id = subscription_id
user.subscription_status = new_status
user.plan_id = plan_id
# Guard against out-of-order webhook delivery: only advance period_end forward
if period_end is not None and (
user.subscription_current_period_end is None
or period_end > user.subscription_current_period_end
):
user.subscription_current_period_end = period_end
# Update limits from plan config
limits = config.PLAN_LIMITS.get(plan_id, config.PLAN_LIMITS["free"])
user.monthly_token_limit = limits["monthly_token_limit"]
# Upgrade pages_limit on activation
if new_status == SubscriptionStatus.ACTIVE:
user.pages_limit = max(user.pages_used, limits["pages_limit"])
# Downgrade pages_limit when canceling
if new_status == SubscriptionStatus.CANCELED:
free_limits = config.PLAN_LIMITS["free"]
user.pages_limit = max(user.pages_used, free_limits["pages_limit"])
logger.info(
"Updated subscription for user %s: status=%s plan=%s subscription=%s",
user.id,
new_status,
plan_id,
subscription_id,
)
await db_session.commit()
return StripeWebhookResponse()
async def _handle_invoice_payment_succeeded(
db_session: AsyncSession, invoice: Any
) -> StripeWebhookResponse:
"""Reset tokens_used_this_month and advance token_reset_date on billing renewal."""
customer_id = _normalize_optional_string(getattr(invoice, "customer", None))
billing_reason = str(getattr(invoice, "billing_reason", "")).lower()
if not customer_id:
return StripeWebhookResponse()
# Reset tokens on subscription renewals and initial subscription creation
if billing_reason not in {"subscription_cycle", "subscription_create"}:
logger.info("invoice.payment_succeeded billing_reason=%s; not resetting tokens", billing_reason)
return StripeWebhookResponse()
user = await _get_user_by_stripe_customer_id(db_session, customer_id)
if user is None:
logger.warning("No user found for Stripe customer %s; skipping token reset", customer_id)
return StripeWebhookResponse()
user.tokens_used_this_month = 0
user.token_reset_date = datetime.now(UTC).date()
logger.info("Reset tokens_used_this_month for user %s on subscription renewal", user.id)
await db_session.commit()
return StripeWebhookResponse()
async def _handle_invoice_payment_failed(
db_session: AsyncSession, invoice: Any
) -> StripeWebhookResponse:
"""Mark subscription as past_due when a renewal invoice payment fails."""
customer_id = _normalize_optional_string(getattr(invoice, "customer", None))
if not customer_id:
return StripeWebhookResponse()
user = await _get_user_by_stripe_customer_id(db_session, customer_id)
if user is None:
logger.warning("No user found for Stripe customer %s; skipping past_due update", customer_id)
return StripeWebhookResponse()
if user.subscription_status == SubscriptionStatus.ACTIVE:
user.subscription_status = SubscriptionStatus.PAST_DUE
logger.info("Set subscription to PAST_DUE for user %s", user.id)
await db_session.commit()
else:
logger.info("invoice.payment_failed for user %s already in status %s; no change", user.id, user.subscription_status)
return StripeWebhookResponse()
async def _activate_subscription_from_checkout(
db_session: AsyncSession, checkout_session: Any
) -> StripeWebhookResponse:
"""Activate subscription when checkout.session.completed fires for mode='subscription'.
The full subscription lifecycle will also be handled by customer.subscription.created,
but we activate immediately here so the user sees Pro access right after checkout.
"""
customer_id = _normalize_optional_string(getattr(checkout_session, "customer", None))
subscription_id = _normalize_optional_string(getattr(checkout_session, "subscription", None))
metadata = _get_metadata(checkout_session)
plan_id_str = metadata.get("plan_id", "")
if not customer_id:
logger.error("Subscription checkout session missing customer ID: %s", getattr(checkout_session, "id", ""))
return StripeWebhookResponse()
user = await _get_user_by_stripe_customer_id(db_session, customer_id)
if user is None:
logger.warning("No user found for Stripe customer %s; skipping subscription activation", customer_id)
return StripeWebhookResponse()
# Idempotency: already activated
if user.subscription_status == SubscriptionStatus.ACTIVE and user.stripe_subscription_id == subscription_id:
logger.info("Subscription already active for user %s; skipping activation", user.id)
return StripeWebhookResponse()
plan_id = plan_id_str if plan_id_str in {"pro_monthly", "pro_yearly"} else "pro_monthly"
limits = config.PLAN_LIMITS.get(plan_id, config.PLAN_LIMITS["pro_monthly"])
user.subscription_status = SubscriptionStatus.ACTIVE
user.plan_id = plan_id
user.stripe_subscription_id = subscription_id
user.monthly_token_limit = limits["monthly_token_limit"]
user.pages_limit = max(user.pages_used, limits["pages_limit"])
user.tokens_used_this_month = 0
user.token_reset_date = datetime.now(UTC).date()
# Retrieve subscription object to set period_end (best-effort)
if subscription_id:
try:
stripe_client = get_stripe_client()
sub_obj = stripe_client.v1.subscriptions.retrieve(subscription_id)
user.subscription_current_period_end = _period_end_from_subscription(sub_obj)
except Exception: # noqa: BLE001
logger.warning("Could not retrieve subscription %s for period_end", subscription_id)
logger.info("Activated subscription for user %s: plan=%s subscription=%s", user.id, plan_id, subscription_id)
await db_session.commit()
return StripeWebhookResponse()
@router.post("/create-checkout-session", response_model=CreateCheckoutSessionResponse)
async def create_checkout_session(
body: CreateCheckoutSessionRequest,
@ -484,12 +721,16 @@ async def stripe_webhook(
detail="Invalid Stripe webhook signature.",
) from exc
logger.info("Received Stripe webhook event: %s", event.type)
# --- Checkout session events ---
if event.type in {
"checkout.session.completed",
"checkout.session.async_payment_succeeded",
}:
checkout_session = event.data.object
payment_status = getattr(checkout_session, "payment_status", None)
session_mode = str(getattr(checkout_session, "mode", "payment")).lower()
if event.type == "checkout.session.completed" and payment_status not in {
"paid",
@ -501,6 +742,9 @@ async def stripe_webhook(
)
return StripeWebhookResponse()
if session_mode == "subscription":
return await _activate_subscription_from_checkout(db_session, checkout_session)
return await _fulfill_completed_purchase(db_session, checkout_session)
if event.type in {
@ -508,8 +752,30 @@ async def stripe_webhook(
"checkout.session.expired",
}:
checkout_session = event.data.object
return await _mark_purchase_failed(db_session, str(checkout_session.id))
# Only PAYG purchases have a PagePurchase row; subscription sessions are ignored here.
if str(getattr(checkout_session, "mode", "payment")).lower() != "subscription":
return await _mark_purchase_failed(db_session, str(checkout_session.id))
return StripeWebhookResponse()
# --- Subscription lifecycle events ---
if event.type in {
"customer.subscription.created",
"customer.subscription.updated",
"customer.subscription.deleted",
}:
subscription = event.data.object
return await _handle_subscription_event(db_session, subscription)
# --- Invoice events ---
if event.type == "invoice.payment_succeeded":
invoice = event.data.object
return await _handle_invoice_payment_succeeded(db_session, invoice)
if event.type == "invoice.payment_failed":
invoice = event.data.object
return await _handle_invoice_payment_failed(db_session, invoice)
logger.info("Unhandled Stripe event type: %s", event.type)
return StripeWebhookResponse()