92 lines
3.0 KiB
TypeScript
92 lines
3.0 KiB
TypeScript
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import db from '../config/database';
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import { AuditService } from './AuditService';
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import { AIService } from './AIService';
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/**
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* [BIZ_FIN_21] 跨租户机密利润共享对账 (Confidential Profit Sharing)
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* 负责在租户间（如联合集采、交叉分销）进行利润共享，利用同态加密技术在不暴露明文利润的情况下完成对账
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*/
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export class ConfidentialSharingService {
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/**
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* 提交机密利润数据并请求对账
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*/
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static async submitConfidentialProfit(
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tenantId: string,
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partnerTenantId: string,
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profitAmount: number,
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sharingRatio: number,
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traceId: string
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): Promise<void> {
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// 1. 同态加密利润数据 (模拟加密过程)
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const encryptedData = `HE-ENC-${profitAmount * 1.5}-${Math.random().toString(36).substring(7)}`;
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const settlementProof = 'PROOF-' + Math.random().toString(36).substring(7).toUpperCase();
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await db.transaction(async (trx) => {
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// 2. 记录机密对账单
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const [id] = await trx('cf_confidential_sharing').insert({
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tenant_id: tenantId,
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partner_tenant_id: partnerTenantId,
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encrypted_profit_data: encryptedData,
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sharing_ratio: sharingRatio,
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settlement_proof: settlementProof
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});
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// 3. 审计记录
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await AuditService.log({
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tenant_id: tenantId,
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action: 'CONFIDENTIAL_PROFIT_SUBMITTED',
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target_type: 'FINANCE_SHARING',
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target_id: id.toString(),
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trace_id: traceId,
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new_data: JSON.stringify({ partnerTenantId, sharingRatio }),
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metadata: JSON.stringify({ settlementProof })
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});
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});
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}
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/**
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* 执行机密对账结算 (BIZ_FIN_21)
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*/
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static async executeConfidentialSettlement(
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sharingId: number,
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tenantId: string,
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traceId: string
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): Promise<number> {
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const record = await db('cf_confidential_sharing').where({ id: sharingId }).first();
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if (!record) throw new Error('Sharing record not found');
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// 1. 利用 AGI 节点进行同态计算 (模拟在不解密的情况下计算应分利润)
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const calculatedShare = await AIService.calculateConfidentialShare(record.encrypted_profit_data, record.sharing_ratio);
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await db.transaction(async (trx) => {
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// 2. 更新结算证明
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await trx('cf_confidential_sharing').where({ id: sharingId }).update({
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updated_at: db.fn.now()
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});
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// 3. 审计记录
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await AuditService.log({
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tenant_id: tenantId,
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action: 'CONFIDENTIAL_SETTLEMENT_COMPLETED',
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target_type: 'FINANCE_SHARING',
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target_id: sharingId.toString(),
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trace_id: traceId,
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new_data: JSON.stringify({ calculatedShare }),
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metadata: JSON.stringify({ sharingId })
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});
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});
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return calculatedShare;
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}
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/**
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* 获取租户所有机密共享历史
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*/
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static async getSharingHistory(tenantId: string) {
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return await db('cf_confidential_sharing')
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.where({ tenant_id: tenantId })
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.orWhere({ partner_tenant_id: tenantId })
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.orderBy('created_at', 'desc');
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}
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}
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