This commit fixes the inconsistent calculation logic between order preview
and actual order creation, which caused balance payment failures when using
coupons.
Changes:
- Standardized fee calculation order in both preCreateOrderLogic and purchaseLogic
- Moved gift amount deduction after fee calculation to ensure correct total
- Removed premature gift amount deduction before transaction in purchaseLogic
- Gift amount is now only deducted within the database transaction
The calculation order is now unified:
1. Apply coupon discount
2. Calculate handling fee based on post-coupon amount
3. Deduct gift amount from total (including fee)
This ensures the preview amount matches the actual payment amount.
When new users register with trial subscription enabled, the subscription
link fails to connect in Clash clients. This is caused by missing cache
invalidation after transaction commit.
Changes:
- Add cache clearing after successful trial subscription creation
- Clear user subscription cache, subscription details cache, and server cache
- Modify activeTrial functions to return subscription object for cache clearing
- Apply fix to all registration methods: email, phone, device, and OAuth
This ensures subscription links work immediately after registration without
requiring manual subscription reset.
- Fix task error handling: return actual errors instead of nil to enable retry
- Add idempotency check: skip processing for already finished orders
- Extend temp order cache: increase from 15 minutes to 24 hours
- Configure retry policy: add MaxRetry(5) for all payment callbacks (Epay, Alipay, Stripe)
This fixes the critical issue where paid orders were being lost due to:
1. Failed tasks being marked as successful and deleted from queue
2. Temporary order info expiring before queue processing
3. No retry mechanism for transient failures
Changes:
- queue/logic/order/activateOrderLogic.go: Fix error returns and add idempotency
- internal/logic/public/portal/purchaseLogic.go: Extend cache to 24 hours
- internal/logic/notify/*NotifyLogic.go: Add retry configuration
- Add quota check in preCreateOrderLogic for order preview
- Move quota check inside transaction in purchaseLogic to prevent race condition
- Add quota check in activateOrderLogic as final safeguard when creating subscription
- Add quota check in redeemCodeLogic when redeeming codes for new subscriptions
- Add optional short_code parameter to DeviceLoginRequest
- Add ShortCode field to Device model
- Save short_code to database during device registration
- Add database migration for user_device.short_code column
- Fix duplicate variable declaration in routes.go
