# SERVICE_MAP（服务编排总图）

## 设计原则
- 所有业务必须通过 Service 层
- Controller 不允许直接操作数据库
- 一个业务 = 一条 Service Flow
- 服务调用必须遵循 STATE_MACHINE 定义的状态流转
- 涉及收费的业务必须接入 BILLING 系统
- 所有接口必须经过权限校验

---

## 1. 功能开通闭环（收费核心）

Flow:
Frontend
→ FeatureController.openFeature
→ FeatureService.checkAccess
→ PaymentService.createPayment
→ PaymentCallbackService.confirm
→ FeatureService.activateFeature
→ PermissionService.grant
→ BillingService.record
→ Response

---

## 2. 多商户订单闭环

Flow:
Frontend
→ OrderController.create
→ OrderService.createOrder
→ OrderService.splitByMerchant
→ InventoryService.lockStock
→ OrderRepository.save
→ Response

---

## 3. 订单履约闭环

Flow:
OrderService.confirm
→ ShipmentService.createShipment
→ OrderService.updateStatus
→ NotificationService.send

---

## 4. 结算闭环

Flow:
Scheduler / Manual Trigger
→ SettlementService.calculate
→ SettlementService.generateBill
→ PaymentService.payout
→ BillingService.record

---

## 5. 权限校验闭环（所有接口必须经过）

Flow:
Request
→ AuthMiddleware
→ PermissionService.check
→ Controller

---

## 6. 商户管理闭环

Flow:
Frontend
→ MerchantController.create
→ MerchantService.register
→ VerificationService.verify
→ RBACService.assignRole
→ Response

---

## 7. 店铺管理闭环

Flow:
Frontend
→ StoreController.create
→ StoreService.createStore
→ ProductService.setupProducts
→ InventoryService.initializeInventory
→ Response

---

## 8. 商户数据与分析闭环

Flow:
Scheduler / Manual Trigger
→ AnalyticsService.collectData
→ ReportService.generateReport
→ NotificationService.sendReport
→ Response

---

## 9. 多商户库存同步闭环

Flow:
Merchant Portal
→ InventoryController.sync
→ InventorySyncService.syncMerchantInventory
→ InventoryService.updateStock
→ ProductService.updateProductStatus
→ Response

---

## 10. 异常处理闭环

Flow:
Frontend / System
→ ExceptionController.handle
→ ExceptionService.process
→ NotificationService.alert
→ SettlementService.adjust
→ Response