feat: 节点互联双向同步——授权/计划/客户(邮箱)按业务键LWW增量同步，HTTPS+HMAC互联密钥，默认10分钟宽松节奏

2026-09-14 21:33:00 +08:00
1 parent 06a9dac99b
commit 44387835e1
@@ -0,0 +1,173 @@
+//! 同步载荷应用：按业务键 upsert，仅当载荷新于本地时更新（last-write-wins）。 // Logan.Li
+
+package sync
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"backend/internal/dto"
+	"backend/internal/model"
+)
+
+// upsertProduct 按产品 code 定位 // Logan.Li
+func (s *Service) upsertProduct(p dto.SyncProductPayload) bool {
+	if strings.TrimSpace(p.Code) == "" {
+		return false
+	}
+	var local model.Product
+	err := s.db.Where("code = ?", p.Code).First(&local).Error
+	if err != nil {
+		local = model.Product{
+			Code: p.Code, Name: p.Name, Version: p.Version, Description: p.Description,
+			Features: p.Features, Price: p.Price, PriceModel: p.PriceModel,
+			Status: p.Status, CreatedAt: p.UpdatedAt, UpdatedAt: p.UpdatedAt,
+		}
+		return s.db.Create(&local).Error == nil
+	}
+	if !p.UpdatedAt.After(local.UpdatedAt) {
+		return false // 本地已是最新的，跳过 // Logan.Li
+	}
+	local.Name = p.Name
+	local.Version = p.Version
+	local.Description = p.Description
+	local.Features = p.Features
+	local.Price = p.Price
+	local.PriceModel = p.PriceModel
+	local.Status = p.Status
+	return s.db.Save(&local).Error == nil
+}
+
+// upsertPlan 按 产品code+plan_type+duration 定位 // Logan.Li
+func (s *Service) upsertPlan(pl dto.SyncPlanPayload) bool {
+	if pl.ProductCode == "" {
+		return false
+	}
+	var product model.Product
+	if err := s.db.Where("code = ?", pl.ProductCode).First(&product).Error; err != nil {
+		return false // 产品依赖未就绪，等下一轮 // Logan.Li
+	}
+	var local model.Plan
+	err := s.db.Where("product_id = ? AND plan_type = ? AND duration = ?", product.ID, pl.PlanType, pl.Duration).First(&local).Error
+	if err != nil {
+		local = model.Plan{
+			ProductID: product.ID, Name: pl.Name, PlanType: pl.PlanType,
+			Price: pl.Price, Currency: pl.Currency, Duration: pl.Duration,
+			MaxDevices: pl.MaxDevices, Features: pl.Features, SortOrder: pl.SortOrder,
+			Status: pl.Status, CreatedAt: pl.UpdatedAt, UpdatedAt: pl.UpdatedAt,
+		}
+		return s.db.Create(&local).Error == nil
+	}
+	if !pl.UpdatedAt.After(local.UpdatedAt) {
+		return false
+	}
+	local.Name = pl.Name
+	local.Price = pl.Price
+	local.Currency = pl.Currency
+	local.MaxDevices = pl.MaxDevices
+	local.Features = pl.Features
+	local.SortOrder = pl.SortOrder
+	local.Status = pl.Status
+	return s.db.Save(&local).Error == nil
+}
+
+// upsertCustomer 按 email 定位（空/占位邮箱回退 name），合规最小字段 // Logan.Li
+func (s *Service) upsertCustomer(c dto.SyncCustomerPayload) bool {
+	email := strings.TrimSpace(c.Email)
+	name := strings.TrimSpace(c.Name)
+	var local model.Customer
+	var err error
+	if email != "" && !strings.HasSuffix(email, "@local.invalid") {
+		err = s.db.Where("email = ?", email).First(&local).Error
+	} else {
+		if name == "" {
+			return false
+		}
+		err = s.db.Where("name = ?", name).Order("id ASC").First(&local).Error
+	}
+	if err != nil {
+		if email == "" {
+			email = fmt.Sprintf("sync+%d@local.invalid", time.Now().UnixNano())
+		}
+		local = model.Customer{
+			Name: name, Company: c.Company, Email: email,
+			Status: c.Status, CreatedAt: c.UpdatedAt, UpdatedAt: c.UpdatedAt,
+		}
+		return s.db.Create(&local).Error == nil
+	}
+	if !c.UpdatedAt.After(local.UpdatedAt) {
+		return false
+	}
+	local.Name = name
+	local.Company = c.Company
+	if email != "" && !strings.HasSuffix(email, "@local.invalid") {
+		local.Email = email
+	}
+	local.Status = c.Status
+	return s.db.Save(&local).Error == nil
+}
+
+// upsertLicense 按 license_key 定位，跨表解析产品与客户 // Logan.Li
+func (s *Service) upsertLicense(l dto.SyncLicensePayload) bool {
+	if strings.TrimSpace(l.LicenseKey) == "" || l.ProductCode == "" {
+		return false
+	}
+	var product model.Product
+	if err := s.db.Where("code = ?", l.ProductCode).First(&product).Error; err != nil {
+		return false
+	}
+	customerID, err := s.resolveCustomer(l.CustomerEmail, l.CustomerName)
+	if err != nil {
+		return false
+	}
+	var local model.License
+	err = s.db.Where("license_key = ?", l.LicenseKey).First(&local).Error
+	if err != nil {
+		local = model.License{
+			LicenseKey: l.LicenseKey, ProductID: product.ID, CustomerID: customerID,
+			Status: l.Status, StartDate: l.StartDate, EndDate: l.EndDate,
+			Duration: l.Duration, MaxActivations: l.MaxActivations,
+			CurrentActivations: l.CurrentActivations,
+			IsTrial:            l.IsTrial, TrialDays: l.TrialDays,
+			CreatedAt: l.UpdatedAt, UpdatedAt: l.UpdatedAt,
+		}
+		return s.db.Create(&local).Error == nil
+	}
+	if !l.UpdatedAt.After(local.UpdatedAt) {
+		return false
+	}
+	local.ProductID = product.ID
+	local.CustomerID = customerID
+	local.Status = l.Status
+	local.StartDate = l.StartDate
+	local.EndDate = l.EndDate
+	local.Duration = l.Duration
+	local.MaxActivations = l.MaxActivations
+	local.CurrentActivations = l.CurrentActivations
+	local.IsTrial = l.IsTrial
+	local.TrialDays = l.TrialDays
+	return s.db.Save(&local).Error == nil
+}
+
+// resolveCustomer 按邮箱解析或创建客户（离线占位客户按名字复用） // Logan.Li
+func (s *Service) resolveCustomer(email, name string) (uint, error) {
+	email = strings.TrimSpace(email)
+	name = strings.TrimSpace(name)
+	if email == "" {
+		email = fmt.Sprintf("sync+%d@local.invalid", time.Now().UnixNano())
+	}
+	var customer model.Customer
+	if err := s.db.Where("email = ?", email).First(&customer).Error; err == nil {
+		return customer.ID, nil
+	}
+	customer = model.Customer{Name: name, Email: email, Status: 1}
+	if err := s.db.Create(&customer).Error; err != nil {
+		// 并发下可能已存在，再查一次 // Logan.Li
+		if err2 := s.db.Where("email = ?", email).First(&customer).Error; err2 == nil {
+			return customer.ID, nil
+		}
+		return 0, err
+	}
+	return customer.ID, nil
+}