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internal/domains/product/entities/product.go

@@ -0,0 +1,153 @@
+package entities
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/shopspring/decimal"
+	"gorm.io/gorm"
+)
+
+// Product 产品实体
+type Product struct {
+	ID            string          `gorm:"primaryKey;type:varchar(36)" comment:"产品ID"`
+	OldID         *string         `gorm:"type:varchar(36);index" comment:"旧产品ID，用于兼容"`
+	Name          string          `gorm:"type:varchar(100);not null" comment:"产品名称"`
+	Code          string          `gorm:"type:varchar(50);uniqueIndex;not null" comment:"产品编号"`
+	Description   string          `gorm:"type:text" comment:"产品简介"`
+	Content       string          `gorm:"type:text" comment:"产品内容"`
+	CategoryID    string          `gorm:"type:varchar(36);not null" comment:"一级分类ID"`
+	SubCategoryID *string         `gorm:"type:varchar(36);index" comment:"二级分类ID"`
+	Price         decimal.Decimal `gorm:"type:decimal(10,2);not null;default:0" comment:"产品价格"`
+	CostPrice     decimal.Decimal `gorm:"type:decimal(10,2);default:0" comment:"成本价"`
+	Remark        string          `gorm:"type:text" comment:"备注"`
+	IsEnabled     bool            `gorm:"default:false" comment:"是否启用"`
+	IsVisible     bool            `gorm:"default:false" comment:"是否展示"`
+	IsPackage     bool            `gorm:"default:false" comment:"是否组合包"`
+	// 组合包相关关联
+	PackageItems []*ProductPackageItem `gorm:"foreignKey:PackageID" comment:"组合包项目列表"`
+	// UI组件相关字段
+	SellUIComponent  bool            `gorm:"default:false" comment:"是否出售UI组件"`
+	UIComponentPrice decimal.Decimal `gorm:"type:decimal(10,2);default:0" comment:"UI组件销售价格（组合包使用）"`
+	// SEO信息
+	SEOTitle       string `gorm:"type:varchar(200)" comment:"SEO标题"`
+	SEODescription string `gorm:"type:text" comment:"SEO描述"`
+	SEOKeywords    string `gorm:"type:text" comment:"SEO关键词"`
+
+	// 关联关系
+	Category      *ProductCategory      `gorm:"foreignKey:CategoryID" comment:"一级分类"`
+	SubCategory   *ProductSubCategory   `gorm:"foreignKey:SubCategoryID" comment:"二级分类"`
+	Documentation *ProductDocumentation `gorm:"foreignKey:ProductID" comment:"产品文档"`
+
+	CreatedAt time.Time      `gorm:"autoCreateTime" comment:"创建时间"`
+	UpdatedAt time.Time      `gorm:"autoUpdateTime" comment:"更新时间"`
+	DeletedAt gorm.DeletedAt `gorm:"index" comment:"软删除时间"`
+}
+
+// BeforeCreate GORM钩子：创建前自动生成UUID
+func (p *Product) BeforeCreate(tx *gorm.DB) error {
+	if p.ID == "" {
+		p.ID = uuid.New().String()
+	}
+	return nil
+}
+
+// IsValid 检查产品是否有效
+func (p *Product) IsValid() bool {
+	return p.DeletedAt.Time.IsZero() && p.IsEnabled
+}
+
+// IsVisibleToUser 检查产品是否对用户可见
+func (p *Product) IsVisibleToUser() bool {
+	return p.IsValid() && p.IsVisible
+}
+
+// CanBeSubscribed 检查产品是否可以订阅
+func (p *Product) CanBeSubscribed() bool {
+	return p.IsValid()
+}
+
+// UpdateSEO 更新SEO信息
+func (p *Product) UpdateSEO(title, description, keywords string) {
+	p.SEOTitle = title
+	p.SEODescription = description
+	p.SEOKeywords = keywords
+}
+
+// Enable 启用产品
+func (p *Product) Enable() {
+	p.IsEnabled = true
+}
+
+// Disable 禁用产品
+func (p *Product) Disable() {
+	p.IsEnabled = false
+}
+
+// Show 显示产品
+func (p *Product) Show() {
+	p.IsVisible = true
+}
+
+// Hide 隐藏产品
+func (p *Product) Hide() {
+	p.IsVisible = false
+}
+
+// SetAsPackage 设置为组合包
+func (p *Product) SetAsPackage() {
+	p.IsPackage = true
+}
+
+func (p *Product) IsCombo() bool {
+	return p.IsPackage
+}
+
+// SetOldID 设置旧ID
+func (p *Product) SetOldID(oldID string) {
+	p.OldID = &oldID
+}
+
+// GetOldID 获取旧ID
+func (p *Product) GetOldID() string {
+	if p.OldID != nil {
+		return *p.OldID
+	}
+	return ""
+}
+
+// HasOldID 检查是否有旧ID
+func (p *Product) HasOldID() bool {
+	return p.OldID != nil && *p.OldID != ""
+}
+
+// HasSubCategory 检查是否有二级分类
+func (p *Product) HasSubCategory() bool {
+	return p.SubCategoryID != nil && *p.SubCategoryID != ""
+}
+
+// GetFullCategoryPath 获取完整分类路径（一级分类/二级分类）
+func (p *Product) GetFullCategoryPath() string {
+	if p.Category == nil {
+		return ""
+	}
+
+	if p.SubCategory != nil {
+		return p.Category.Name + " / " + p.SubCategory.Name
+	}
+
+	return p.Category.Name
+}
+
+// GetFullCategoryCode 获取完整分类编号（一级分类编号.二级分类编号）
+func (p *Product) GetFullCategoryCode() string {
+	if p.Category == nil {
+		return ""
+	}
+
+	if p.SubCategory != nil {
+		return p.Category.Code + "." + p.SubCategory.Code
+	}
+
+	return p.Category.Code
+}