完成 微前端拆分 提交遗漏文件

front-end/app-product/src/domains/product/domain/entities/Product.ts

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+import { ErrorText } from "../enums/ErrorEnums"
+
+/**
+ * 商品实体 - 包含商品的核心属性和行为
+ * 在DDD中，实体具有唯一标识和生命周期
+ */
+export class Product {
+    private readonly _id: number;
+    private _name: string;
+    private _description: string;
+    private _price: number;
+    private _imageUrl: string;
+    private _stock: number;
+    private _categoryId: number;
+
+    constructor(
+        id: number,
+        name: string,
+        description: string,
+        price: number,
+        imageUrl: string,
+        stock: number,
+        categoryId: number,
+    ) {
+        this._id = id;
+        this._name = name;
+        this._description = description;
+        this._price = price;
+        this._imageUrl = imageUrl;
+        this._stock = stock;
+        this._categoryId = categoryId;
+    }
+
+    // 实体唯一标识
+    get id(): number {
+        return this._id;
+    }
+
+    public get name(): string {
+        return this._name;
+    }
+    public set name(value: string) {
+        this._name = value;
+    }
+
+    public get description(): string {
+        return this._description;
+    }
+    public set description(value: string) {
+        this._description = value;
+    }
+
+
+    public get price(): number {
+        return this._price;
+    }
+    public set price(value: number) {
+        if (value < 0) {
+            throw new Error(ErrorText.PriceNotNegativein);
+        }
+        this._price = value;
+    }
+
+    public get imageUrl(): string {
+        return this._imageUrl;
+    }
+    public set imageUrl(value: string) {
+        this._imageUrl = value;
+    }
+
+    public get stock(): number {
+        return this._stock;
+    }
+    public set stock(value: number) {
+        if (value < 0) {
+            throw new Error(ErrorText.StockNotNegativein)
+        }
+        this._stock = value;
+    }
+
+    public get categoryId(): number {
+        return this._categoryId;
+    }
+    public set categoryId(value: number) {
+        this._categoryId = value;
+    }
+
+    /**
+     * 检查商品是否有库存
+     */
+    hasStock() {
+        return this._stock > 0
+    }
+
+    /**
+     * 减少商品库存
+     * @param quantity 减少的数量
+     */
+    reduceStock(quantity: number): void {
+        if (quantity <= 0) {
+            throw new Error(ErrorText.StockIsGreaterThanZero)
+        }
+
+        if (this._stock < quantity) {
+            throw new Error(ErrorText.LowStock)
+        }
+
+        this._stock -= quantity;
+    }
+
+    /**
+     * Class类转化为普通json数据
+     */
+    toDTO(): Record<string, string | number> {
+        return {
+            id: this._id,
+            name: this._name,
+            description: this._description,
+            price: this._price,
+            imageUrl: this._imageUrl,
+            stock: this._stock,
+            categoryId: this._categoryId
+        }
+    }
+
+    /**
+     * 从json数据创建Product类实例
+     * 转化为领域实体 Product
+     */
+    static fromDTO(data: Record<string, any>): Product {
+        return new Product(
+            data.id,
+            data.name,
+            data.description,
+            data.price,
+            data.imageUrl,
+            data.stock,
+            data.categoryId,
+        );
+    }
+}

front-end/app-product/src/domains/product/domain/enums/ErrorEnums.ts

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+export enum ErrorText {
+    PriceNotNegativein = "商品 价格 不能为负数",
+    StockNotNegativein = "商品 库存 不能为负数",
+    StockIsGreaterThanZero = "减少的库存数量必须大于0",
+    LowStock = "库存不足",
+    IdNotNull = "商品Id不能为空"
+}

front-end/app-product/src/domains/product/domain/events/README.md

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+# 临时占位，上传空文件夹，保存文件结构用，后面删除

front-end/app-product/src/domains/product/domain/type/ProductType.ts

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+export interface ProductType {
+    id: number,
+    name: string,
+    description: string,
+    price: number,
+    imageUrl: string,
+    stock: number,
+    categoryId: number,
+}

front-end/app-product/src/domains/product/domain/value-objects/README.md

@@ -0,0 +1 @@
+# 临时占位，上传空文件夹，保存文件结构用，后面删除