510 lines
15 KiB
TypeScript
510 lines
15 KiB
TypeScript
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import db from '../config/database';
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import { logger } from '../utils/logger';
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import {
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UserAsset,
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UserAssetCreateInput,
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UserAssetQueryOptions,
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MemberLevel,
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} from '../models/UserAsset';
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/**
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* UserAssetService - 用户资产计算服务
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*
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* [BE-UA001] 用户资产计算接口
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* @description 计算和管理用户资产数据，包括积分、消费、会员等级等
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*
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* 功能定位：
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* - 用户资产统计与计算
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* - 资产数据查询
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* - 资产汇总报表
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*
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* 安全约束：
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* - 所有操作必须携带五元组追踪信息
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* - 租户数据隔离
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*
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* @author AI-Backend-7
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* @taskId BE-UA001
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*/
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export class UserAssetService {
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private static readonly TABLE_NAME = 'cf_user_asset';
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/**
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* 初始化数据库表
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* 遵循幂等性原则：使用 hasTable 前置校验
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*/
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static async initTable(): Promise<void> {
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const hasTable = await db.schema.hasTable(this.TABLE_NAME);
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if (!hasTable) {
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logger.info(`[UserAssetService] Creating ${this.TABLE_NAME} table...`);
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await db.schema.createTable(this.TABLE_NAME, (table) => {
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table.string('id', 36).primary();
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table.string('tenant_id', 64).notNullable().index();
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table.string('shop_id', 64).notNullable().index();
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table.string('user_id', 64).notNullable().index();
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table.integer('total_points').defaultTo(0).notNullable();
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table.integer('available_points').defaultTo(0).notNullable();
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table.integer('frozen_points').defaultTo(0).notNullable();
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table.decimal('total_spent', 12, 2).defaultTo(0).notNullable();
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table.integer('total_orders').defaultTo(0).notNullable();
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table.enum('member_level', ['BRONZE', 'SILVER', 'GOLD', 'PLATINUM', 'DIAMOND']).defaultTo('BRONZE').notNullable();
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table.integer('member_score').defaultTo(0).notNullable();
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table.decimal('cashback_balance', 10, 2).defaultTo(0).notNullable();
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table.integer('coupon_count').defaultTo(0).notNullable();
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table.timestamp('last_active_at');
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table.timestamp('created_at').defaultTo(db.fn.now());
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table.timestamp('updated_at').defaultTo(db.fn.now());
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table.unique(['tenant_id', 'shop_id', 'user_id'], 'uk_asset_user');
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table.index(['tenant_id', 'member_level'], 'idx_asset_level');
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table.index(['available_points'], 'idx_asset_points');
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});
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logger.info(`[UserAssetService] Table ${this.TABLE_NAME} created`);
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}
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}
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/**
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* 获取或创建用户资产
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* @param input 创建输入
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* @returns 用户资产
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*/
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static async getOrCreate(input: UserAssetCreateInput): Promise<UserAsset> {
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let asset = await this.getByUserId(input.tenantId, input.shopId, input.userId);
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if (!asset) {
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const id = this.generateId();
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const now = new Date();
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await db(this.TABLE_NAME).insert({
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id,
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tenant_id: input.tenantId,
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shop_id: input.shopId,
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user_id: input.userId,
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total_points: 0,
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available_points: 0,
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frozen_points: 0,
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total_spent: 0,
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total_orders: 0,
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member_level: 'BRONZE',
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member_score: 0,
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cashback_balance: 0,
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coupon_count: 0,
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last_active_at: now,
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created_at: now,
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updated_at: now,
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});
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asset = await this.getByUserId(input.tenantId, input.shopId, input.userId);
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logger.info(`[UserAssetService] User asset created: userId=${input.userId}, tenantId=${input.tenantId}, traceId=${input.traceId}`);
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}
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return asset!;
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}
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/**
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* 根据用户ID获取资产
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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* @returns 用户资产
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*/
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static async getByUserId(tenantId: string, shopId: string, userId: string): Promise<UserAsset | null> {
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const row = await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.first();
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if (!row) return null;
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return this.mapRowToAsset(row);
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}
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/**
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* 根据ID获取资产
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* @param tenantId 租户ID
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* @param id 资产ID
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* @returns 用户资产
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*/
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static async getById(tenantId: string, id: string): Promise<UserAsset | null> {
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const row = await db(this.TABLE_NAME)
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.where({ id, tenant_id: tenantId })
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.first();
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if (!row) return null;
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return this.mapRowToAsset(row);
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}
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/**
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* 查询用户资产列表
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* @param options 查询选项
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* @returns 资产列表和总数
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*/
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static async query(
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options: UserAssetQueryOptions
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): Promise<{ data: UserAsset[]; total: number }> {
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const { page = 1, pageSize = 20 } = options;
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const offset = (page - 1) * pageSize;
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let query = db(this.TABLE_NAME)
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.where('tenant_id', options.tenantId);
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if (options.shopId) {
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query = query.where('shop_id', options.shopId);
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}
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if (options.userId) {
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query = query.where('user_id', options.userId);
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}
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if (options.memberLevel) {
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query = query.where('member_level', options.memberLevel);
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}
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if (options.minPoints !== undefined) {
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query = query.where('available_points', '>=', options.minPoints);
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}
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if (options.maxPoints !== undefined) {
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query = query.where('available_points', '<=', options.maxPoints);
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}
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const totalQuery = query.clone();
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const [{ count }] = await totalQuery.count('* as count');
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const total = Number(count);
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const rows = await query
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.orderBy('member_score', 'desc')
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.limit(pageSize)
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.offset(offset);
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const data = rows.map(row => this.mapRowToAsset(row));
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return { data, total };
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}
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/**
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* 更新用户消费统计
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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* @param amount 消费金额
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* @param traceId 追踪ID
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*/
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static async updateSpending(
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tenantId: string,
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shopId: string,
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userId: string,
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amount: number,
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traceId: string
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): Promise<void> {
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await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.increment('total_spent', amount)
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.increment('total_orders', 1)
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.increment('member_score', Math.floor(amount))
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.update({
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last_active_at: new Date(),
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updated_at: new Date(),
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});
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await this.recalculateMemberLevel(tenantId, shopId, userId);
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logger.info(`[UserAssetService] Spending updated: userId=${userId}, amount=${amount}, traceId=${traceId}`);
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}
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/**
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* 更新积分余额
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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* @param pointsDelta 积分变化（正数增加，负数减少）
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* @param frozenDelta 冻结积分变化
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* @param traceId 追踪ID
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*/
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static async updatePoints(
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tenantId: string,
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shopId: string,
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userId: string,
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pointsDelta: number,
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frozenDelta: number,
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traceId: string
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): Promise<void> {
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const asset = await this.getByUserId(tenantId, shopId, userId);
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if (!asset) {
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throw new Error(`User asset not found: userId=${userId}`);
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}
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const newAvailable = asset.availablePoints + pointsDelta;
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const newFrozen = asset.frozenPoints + frozenDelta;
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const newTotal = newAvailable + newFrozen;
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if (newAvailable < 0) {
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throw new Error(`Insufficient available points: userId=${userId}, available=${asset.availablePoints}, required=${Math.abs(pointsDelta)}`);
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}
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await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.update({
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total_points: newTotal,
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available_points: newAvailable,
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frozen_points: newFrozen,
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updated_at: new Date(),
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});
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logger.info(`[UserAssetService] Points updated: userId=${userId}, delta=${pointsDelta}, frozenDelta=${frozenDelta}, traceId=${traceId}`);
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}
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/**
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* 更新返现余额
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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* @param amount 金额变化
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* @param traceId 追踪ID
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*/
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static async updateCashback(
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tenantId: string,
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shopId: string,
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userId: string,
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amount: number,
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traceId: string
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): Promise<void> {
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await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.increment('cashback_balance', amount)
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.update({
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updated_at: new Date(),
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});
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logger.info(`[UserAssetService] Cashback updated: userId=${userId}, amount=${amount}, traceId=${traceId}`);
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}
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/**
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* 更新优惠券数量
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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* @param delta 数量变化
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* @param traceId 追踪ID
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*/
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static async updateCouponCount(
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tenantId: string,
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shopId: string,
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userId: string,
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delta: number,
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traceId: string
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): Promise<void> {
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await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.increment('coupon_count', delta)
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.update({
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updated_at: new Date(),
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});
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logger.info(`[UserAssetService] Coupon count updated: userId=${userId}, delta=${delta}, traceId=${traceId}`);
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}
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/**
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* 重新计算会员等级
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* @param tenantId 租户ID
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* @param shopId 店铺ID
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* @param userId 用户ID
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*/
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static async recalculateMemberLevel(
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tenantId: string,
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shopId: string,
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userId: string
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): Promise<void> {
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const asset = await this.getByUserId(tenantId, shopId, userId);
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if (!asset) return;
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const newLevel = this.calculateLevel(asset.memberScore);
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if (newLevel !== asset.memberLevel) {
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await db(this.TABLE_NAME)
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.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
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.update({
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member_level: newLevel,
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updated_at: new Date(),
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});
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logger.info(`[UserAssetService] Member level updated: userId=${userId}, oldLevel=${asset.memberLevel}, newLevel=${newLevel}`);
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}
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}
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/**
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* 根据积分计算会员等级
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* @param score 会员积分
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* @returns 会员等级
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*/
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static calculateLevel(score: number): MemberLevel {
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if (score >= 10000) return 'DIAMOND';
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if (score >= 5000) return 'PLATINUM';
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if (score >= 2000) return 'GOLD';
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if (score >= 500) return 'SILVER';
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return 'BRONZE';
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}
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/**
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* 获取资产统计汇总
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* @param tenantId 租户ID
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* @param shopId 店铺ID（可选）
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* @returns 统计汇总
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*/
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static async getStatistics(
|
|||
|
|
tenantId: string,
|
|||
|
|
shopId?: string
|
|||
|
|
): Promise<{
|
|||
|
|
totalUsers: number;
|
|||
|
|
totalPoints: number;
|
|||
|
|
totalSpent: number;
|
|||
|
|
totalCashback: number;
|
|||
|
|
levelDistribution: Record<MemberLevel, number>;
|
|||
|
|
}> {
|
|||
|
|
let query = db(this.TABLE_NAME).where('tenant_id', tenantId);
|
|||
|
|
if (shopId) {
|
|||
|
|
query = query.where('shop_id', shopId);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
const rows = await query;
|
|||
|
|
|
|||
|
|
const totalUsers = rows.length;
|
|||
|
|
const totalPoints = rows.reduce((sum, row) => sum + Number(row.total_points), 0);
|
|||
|
|
const totalSpent = rows.reduce((sum, row) => sum + Number(row.total_spent), 0);
|
|||
|
|
const totalCashback = rows.reduce((sum, row) => sum + Number(row.cashback_balance), 0);
|
|||
|
|
|
|||
|
|
const levelDistribution: Record<MemberLevel, number> = {
|
|||
|
|
BRONZE: 0,
|
|||
|
|
SILVER: 0,
|
|||
|
|
GOLD: 0,
|
|||
|
|
PLATINUM: 0,
|
|||
|
|
DIAMOND: 0,
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
for (const row of rows) {
|
|||
|
|
levelDistribution[row.member_level as MemberLevel]++;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return {
|
|||
|
|
totalUsers,
|
|||
|
|
totalPoints,
|
|||
|
|
totalSpent,
|
|||
|
|
totalCashback,
|
|||
|
|
levelDistribution,
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 批量获取用户资产
|
|||
|
|
* @param tenantId 租户ID
|
|||
|
|
* @param shopId 店铺ID
|
|||
|
|
* @param userIds 用户ID列表
|
|||
|
|
* @returns 用户资产映射
|
|||
|
|
*/
|
|||
|
|
static async batchGetByUserIds(
|
|||
|
|
tenantId: string,
|
|||
|
|
shopId: string,
|
|||
|
|
userIds: string[]
|
|||
|
|
): Promise<Record<string, UserAsset>> {
|
|||
|
|
const rows = await db(this.TABLE_NAME)
|
|||
|
|
.where('tenant_id', tenantId)
|
|||
|
|
.where('shop_id', shopId)
|
|||
|
|
.whereIn('user_id', userIds);
|
|||
|
|
|
|||
|
|
const result: Record<string, UserAsset> = {};
|
|||
|
|
for (const row of rows) {
|
|||
|
|
result[row.user_id] = this.mapRowToAsset(row);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 冻结积分
|
|||
|
|
* @param tenantId 租户ID
|
|||
|
|
* @param shopId 店铺ID
|
|||
|
|
* @param userId 用户ID
|
|||
|
|
* @param points 冻结积分数量
|
|||
|
|
* @param traceId 追踪ID
|
|||
|
|
*/
|
|||
|
|
static async freezePoints(
|
|||
|
|
tenantId: string,
|
|||
|
|
shopId: string,
|
|||
|
|
userId: string,
|
|||
|
|
points: number,
|
|||
|
|
traceId: string
|
|||
|
|
): Promise<void> {
|
|||
|
|
const asset = await this.getByUserId(tenantId, shopId, userId);
|
|||
|
|
if (!asset || asset.availablePoints < points) {
|
|||
|
|
throw new Error(`Insufficient available points to freeze: userId=${userId}, available=${asset?.availablePoints || 0}, required=${points}`);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
await db(this.TABLE_NAME)
|
|||
|
|
.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
|
|||
|
|
.update({
|
|||
|
|
available_points: asset.availablePoints - points,
|
|||
|
|
frozen_points: asset.frozenPoints + points,
|
|||
|
|
updated_at: new Date(),
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
logger.info(`[UserAssetService] Points frozen: userId=${userId}, points=${points}, traceId=${traceId}`);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 解冻积分
|
|||
|
|
* @param tenantId 租户ID
|
|||
|
|
* @param shopId 店铺ID
|
|||
|
|
* @param userId 用户ID
|
|||
|
|
* @param points 解冻积分数量
|
|||
|
|
* @param traceId 追踪ID
|
|||
|
|
*/
|
|||
|
|
static async unfreezePoints(
|
|||
|
|
tenantId: string,
|
|||
|
|
shopId: string,
|
|||
|
|
userId: string,
|
|||
|
|
points: number,
|
|||
|
|
traceId: string
|
|||
|
|
): Promise<void> {
|
|||
|
|
const asset = await this.getByUserId(tenantId, shopId, userId);
|
|||
|
|
if (!asset || asset.frozenPoints < points) {
|
|||
|
|
throw new Error(`Insufficient frozen points to unfreeze: userId=${userId}, frozen=${asset?.frozenPoints || 0}, required=${points}`);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
await db(this.TABLE_NAME)
|
|||
|
|
.where({ tenant_id: tenantId, shop_id: shopId, user_id: userId })
|
|||
|
|
.update({
|
|||
|
|
available_points: asset.availablePoints + points,
|
|||
|
|
frozen_points: asset.frozenPoints - points,
|
|||
|
|
updated_at: new Date(),
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
logger.info(`[UserAssetService] Points unfrozen: userId=${userId}, points=${points}, traceId=${traceId}`);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 生成唯一ID
|
|||
|
|
*/
|
|||
|
|
private static generateId(): string {
|
|||
|
|
return `ASSET-${Date.now()}-${Math.random().toString(36).substring(2, 10)}`;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* 将数据库行映射为资产对象
|
|||
|
|
*/
|
|||
|
|
private static mapRowToAsset(row: Record<string, any>): UserAsset {
|
|||
|
|
return {
|
|||
|
|
id: row.id,
|
|||
|
|
tenantId: row.tenant_id,
|
|||
|
|
shopId: row.shop_id,
|
|||
|
|
userId: row.user_id,
|
|||
|
|
totalPoints: Number(row.total_points),
|
|||
|
|
availablePoints: Number(row.available_points),
|
|||
|
|
frozenPoints: Number(row.frozen_points),
|
|||
|
|
totalSpent: Number(row.total_spent),
|
|||
|
|
totalOrders: Number(row.total_orders),
|
|||
|
|
memberLevel: row.member_level,
|
|||
|
|
memberScore: Number(row.member_score),
|
|||
|
|
cashbackBalance: Number(row.cashback_balance),
|
|||
|
|
couponCount: Number(row.coupon_count),
|
|||
|
|
lastActiveAt: row.last_active_at,
|
|||
|
|
createdAt: row.created_at,
|
|||
|
|
updatedAt: row.updated_at,
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
}
|