234 lines
7.6 KiB
TypeScript
234 lines
7.6 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 { FXHedgingService } from './FXHedgingService';
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import { TaxService } from './TaxService';
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export interface OrderRecord {
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id: string;
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tenantId: string;
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shopId?: string;
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taskId?: string;
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traceId: string;
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platform: string;
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productId: string;
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sellingPrice: number;
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purchasePrice: number;
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countryCode: string;
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logisticsCost: number;
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adBudget: number;
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status: string;
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}
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/**
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* [BIZ_FIN_01] 财务结算与对账服务
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* @description 处理订单回流、利差核算与账单生成
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*/
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export class FinanceService {
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private static readonly TABLE_NAME = 'cf_orders';
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private static readonly TRANSACTION_TABLE = 'cf_transactions';
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/**
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* 初始化数据库表
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*/
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static async initTable() {
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const hasOrderTable = await db.schema.hasTable(this.TABLE_NAME);
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if (!hasOrderTable) {
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console.log(`📦 Creating ${this.TABLE_NAME} table...`);
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await db.schema.createTable(this.TABLE_NAME, (table) => {
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table.string('id', 64).primary();
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table.string('tenant_id', 64).index();
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table.string('platform', 32);
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table.string('product_id', 64);
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table.decimal('selling_price', 10, 2);
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table.decimal('purchase_price', 10, 2);
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table.string('country_code', 8);
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table.decimal('logistics_cost', 10, 2);
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table.decimal('ad_budget', 10, 2);
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table.string('status', 32);
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table.timestamps(true, true);
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});
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}
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const hasTransactionTable = await db.schema.hasTable(this.TRANSACTION_TABLE);
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if (!hasTransactionTable) {
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console.log(`📦 Creating ${this.TRANSACTION_TABLE} table...`);
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await db.schema.createTable(this.TRANSACTION_TABLE, (table) => {
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table.increments('id').primary();
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table.string('tenant_id', 64).index();
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table.string('order_id', 64).nullable();
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table.decimal('amount', 10, 2);
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table.string('currency', 8).defaultTo('USD');
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table.string('transaction_type', 32);
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table.string('trace_id', 64);
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table.json('metadata').nullable();
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table.timestamp('created_at').defaultTo(db.fn.now());
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});
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}
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}
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/**
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* 记录订单
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*/
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static async recordOrder(order: OrderRecord): Promise<void> {
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const { tenantId, shopId, taskId, traceId } = order;
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// 1. 插入订单主表
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await db(this.TABLE_NAME).insert({
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id: order.id,
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tenant_id: order.tenantId,
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platform: order.platform,
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product_id: order.productId,
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selling_price: order.sellingPrice,
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purchase_price: order.purchasePrice,
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country_code: order.countryCode,
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logistics_cost: order.logisticsCost,
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ad_budget: order.adBudget,
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status: order.status,
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created_at: new Date(),
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updated_at: new Date()
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});
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// 2. 实时税务计提 (BIZ_FIN_02)
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const taxInfo = TaxService.calculateTax({
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countryCode: order.countryCode,
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baseAmount: order.sellingPrice,
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currency: 'USD'
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});
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await this.accrueTax(order.id, {
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tenantId,
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amount: taxInfo.totalTax,
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currency: 'USD',
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type: taxInfo.isIOSS ? 'IOSS_VAT' : 'STANDARD_VAT',
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traceId
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});
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// 3. 汇率自动对冲 (BIZ_FIN_03)
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await FXHedgingService.autoHedge({
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tenantId,
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pair: 'USD/CNY',
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amount: order.sellingPrice,
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traceId
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});
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}
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/**
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* [BIZ_FIN_04] 记录财务交易流水
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*/
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static async recordTransaction(params: {
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tenantId: string;
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amount: number;
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currency?: string;
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type: 'ORDER_REVENUE' | 'LOGISTICS_COST' | 'PLATFORM_FEE' | 'REFUND' | 'COMMISSION' | 'INCOME';
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category?: string;
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orderId?: string;
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traceId?: string;
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metadata?: any;
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}) {
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logger.info(`[Finance] Recording transaction: ${params.type} for Order ${params.orderId || 'N/A'} (${params.amount} ${params.currency || 'USD'})`);
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// 实际业务中需插入 cf_transactions 表
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await db('cf_transactions').insert({
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tenant_id: params.tenantId,
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order_id: params.orderId || null,
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amount: params.amount,
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currency: params.currency || 'USD',
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transaction_type: params.type,
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trace_id: params.traceId || 'system',
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metadata: params.metadata ? JSON.stringify(params.metadata) : null,
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created_at: new Date()
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});
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}
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/**
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* [BIZ_FIN_02] 实时税务计提记录
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* @description 将税务计提记录到 cf_tax_accruals 表，用于后期对账与报关
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*/
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private static async accrueTax(orderId: string, params: {
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tenantId: string;
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amount: number;
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currency: string;
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type: string;
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traceId: string;
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}): Promise<void> {
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logger.info(`[Finance] Accruing tax for order ${orderId}: ${params.amount} ${params.currency} (${params.type})`);
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// 实际业务中需插入 cf_tax_accruals
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await db('cf_tax_accruals').insert({
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order_id: orderId,
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tenant_id: params.tenantId,
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amount: params.amount,
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currency: params.currency,
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tax_type: params.type,
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status: 'ACCRUED',
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trace_id: params.traceId,
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created_at: new Date(),
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updated_at: new Date()
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});
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}
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/**
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* [BIZ_FIN_06] 全自动化财务利润对账
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* @description 自动勾稽订单、采购成本、物流费与税金，生成最终利润报表
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*/
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static async performAutoProfitRecon(tenantId: string, shopId: string): Promise<any> {
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logger.info(`[Finance] Performing auto profit reconciliation for Tenant: ${tenantId}, Shop: ${shopId}`);
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// 1. 获取所有已完成且未对账的订单
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const orders = await db('cf_orders')
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.where({ tenant_id: tenantId, shop_id: shopId, status: 'PUBLISHED' }) // 假设 PUBLISHED 状态代表已成单
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.whereNull('reconciled_at');
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const results = [];
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for (const order of orders) {
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try {
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// 2. 聚合各项成本
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const taxAccrual = await db('cf_tax_accruals').where({ order_id: order.id }).first();
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const purchaseOrder = await db('cf_purchase_orders').where({ product_id: order.product_id, tenant_id: tenantId }).first();
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const logisticsRoute = await db('cf_logistics_routes').where({ tenant_id: tenantId }).first(); // 简化取第一个
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const purchaseCost = purchaseOrder ? purchaseOrder.total_amount / purchaseOrder.quantity : 0;
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const taxAmount = taxAccrual ? taxAccrual.amount : 0;
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const logisticsCost = logisticsRoute ? logisticsRoute.cost_per_kg * 0.5 : 5; // 假设 0.5kg
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const netProfit = order.selling_price - purchaseCost - logisticsCost - taxAmount;
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// 3. 记录对账结果
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await db('cf_orders').where({ id: order.id }).update({
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net_profit: netProfit,
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reconciled_at: new Date(),
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updated_at: new Date()
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});
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results.push({ orderId: order.id, netProfit });
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} catch (err: any) {
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logger.error(`[Finance] Recon failed for Order ${order.id}: ${err.message}`);
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}
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}
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return { totalReconciled: results.length, details: results };
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}
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/**
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* 获取账单回放
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*/
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static async getBillPlayback(tenantId: string, shopId: string, orderId: string): Promise<any> {
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const order = await db(this.TABLE_NAME)
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.where({ id: orderId, tenant_id: tenantId })
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.first();
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if (!order) return null;
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return {
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orderId: order.id,
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timeline: [
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{ event: 'ORDER_CREATED', time: order.created_at, amount: order.selling_price },
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{ event: 'PURCHASE_COMPLETED', time: order.updated_at, amount: -order.purchase_price },
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{ event: 'LOGISTICS_DEDUCTED', time: order.updated_at, amount: -order.logistics_cost }
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],
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finalProfit: order.selling_price - order.purchase_price - order.logistics_cost
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};
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}
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}
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