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✨ feat: add subscription billing system with admin management and user purchase flow

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Implement a new subscription-based billing model alongside existing metered/per-request billing:

Backend:
- Add subscription plan models (SubscriptionPlan, SubscriptionPlanItem, UserSubscription, etc.)
- Implement CRUD APIs for subscription plan management (admin only)
- Add user subscription queries with support for multiple active/expired subscriptions
- Integrate payment gateways (Stripe, Creem, Epay) for subscription purchases
- Implement pre-consume and post-consume billing logic for subscription quota tracking
- Add billing preference settings (subscription_first, wallet_first, etc.)
- Enhance usage logs with subscription deduction details

Frontend - Admin:
- Add subscription management page with table view and drawer-based edit form
- Match UI/UX style with existing admin pages (redemption codes, users)
- Support enabling/disabling plans, configuring payment IDs, and model quotas
- Add user subscription binding modal in user management

Frontend - Wallet:
- Add subscription plans card with current subscription status display
- Show all subscriptions (active and expired) with remaining days/usage percentage
- Display purchasable plans with pricing cards following SaaS best practices
- Extract purchase modal to separate component matching payment confirm modal style
- Add skeleton loading states with active animation
- Implement billing preference selector in card header
- Handle payment gateway availability based on admin configuration

Frontend - Usage Logs:
- Display subscription deduction details in log entries
- Show step-by-step breakdown of subscription usage (pre-consumed, delta, final, remaining)
- Add subscription deduction tag for subscription-covered requests
This commit is contained in:
t0ng7u
2026-01-30 05:31:10 +08:00
parent c6c12d340f
commit 009910b960
36 changed files with 3872 additions and 181 deletions
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24
router/api-router.go
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@@ -119,6 +119,30 @@ func SetApiRouter(router *gin.Engine) {
adminRoute.DELETE("/:id/2fa", controller.AdminDisable2FA)
}
}
// Subscription billing (plans, purchase, admin management)
subscriptionRoute := apiRouter.Group("/subscription")
subscriptionRoute.Use(middleware.UserAuth())
{
subscriptionRoute.GET("/plans", controller.GetSubscriptionPlans)
subscriptionRoute.GET("/self", controller.GetSubscriptionSelf)
subscriptionRoute.PUT("/self/preference", controller.UpdateSubscriptionPreference)
subscriptionRoute.POST("/epay/pay", middleware.CriticalRateLimit(), controller.SubscriptionRequestEpay)
subscriptionRoute.POST("/stripe/pay", middleware.CriticalRateLimit(), controller.SubscriptionRequestStripePay)
subscriptionRoute.POST("/creem/pay", middleware.CriticalRateLimit(), controller.SubscriptionRequestCreemPay)
}
subscriptionAdminRoute := apiRouter.Group("/subscription/admin")
subscriptionAdminRoute.Use(middleware.AdminAuth())
{
subscriptionAdminRoute.GET("/plans", controller.AdminListSubscriptionPlans)
subscriptionAdminRoute.POST("/plans", controller.AdminCreateSubscriptionPlan)
subscriptionAdminRoute.PUT("/plans/:id", controller.AdminUpdateSubscriptionPlan)
subscriptionAdminRoute.DELETE("/plans/:id", controller.AdminDeleteSubscriptionPlan)
subscriptionAdminRoute.POST("/bind", controller.AdminBindSubscription)
}
// Subscription payment callbacks (no auth)
apiRouter.GET("/subscription/epay/notify", controller.SubscriptionEpayNotify)
optionRoute := apiRouter.Group("/option")
optionRoute.Use(middleware.RootAuth())
{