feat(lead): 一键发布增强 — 物料清单提取 + 标题预校验 + 错误诊断
- 新增 MaterialExtractorService:发布前实时从公告正文/标题提取结构化物料(items), 三层降级(正文 AI → 标题 AI → 整标题兜底),全程不阻断发布 - publishToDirev 接入物料提取,items 传给产业平台 publish_rfq - 新增 B2B 标题 50 字预校验,提前报错避免拿到通用"服务器内部异常" - 新增 diagnosePublishError():把产业平台原始错误翻译成明确指引 (标题超长/数量异常/身份校验/必填缺失)
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@ -4,13 +4,14 @@ import { IntegrationModule } from '../integration/integration.module'
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import { CrawlerModule } from '../crawler/crawler.module'
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import { CrawlerModule } from '../crawler/crawler.module'
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import { ProductCategoryModule } from '../product-category/product-category.module'
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import { ProductCategoryModule } from '../product-category/product-category.module'
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import { LeadService } from './lead.service'
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import { LeadService } from './lead.service'
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import { MaterialExtractorService } from './material-extractor.service'
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import { LeadController } from './lead.controller'
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import { LeadController } from './lead.controller'
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import { LeadNotesController } from './lead-notes.controller'
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import { LeadNotesController } from './lead-notes.controller'
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@Module({
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@Module({
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imports: [PrismaModule, IntegrationModule, CrawlerModule, ProductCategoryModule],
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imports: [PrismaModule, IntegrationModule, CrawlerModule, ProductCategoryModule],
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controllers: [LeadController, LeadNotesController],
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controllers: [LeadController, LeadNotesController],
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providers: [LeadService],
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providers: [LeadService, MaterialExtractorService],
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exports: [LeadService],
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exports: [LeadService],
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})
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})
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export class LeadModule {}
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export class LeadModule {}
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@ -3,6 +3,7 @@ import { PrismaService } from '../prisma/prisma.service'
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import { IntegrationService } from '../integration/integration.service'
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import { IntegrationService } from '../integration/integration.service'
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import { ProductCategoryService } from '../product-category/product-category.service'
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import { ProductCategoryService } from '../product-category/product-category.service'
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import { CategoryInferenceService } from '../product-category/category-inference.service'
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import { CategoryInferenceService } from '../product-category/category-inference.service'
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import { MaterialExtractorService } from './material-extractor.service'
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@Injectable()
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@Injectable()
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export class LeadService {
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export class LeadService {
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@ -13,6 +14,7 @@ export class LeadService {
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private integrationService: IntegrationService,
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private integrationService: IntegrationService,
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private categoryService: ProductCategoryService,
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private categoryService: ProductCategoryService,
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private categoryInference: CategoryInferenceService,
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private categoryInference: CategoryInferenceService,
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private materialExtractor: MaterialExtractorService,
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) {}
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) {}
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async findAll(params?: { status?: string; level?: string; search?: string; star?: string; source?: string; category?: string; assignedTo?: string; timeRange?: string }) {
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async findAll(params?: { status?: string; level?: string; search?: string; star?: string; source?: string; category?: string; assignedTo?: string; timeRange?: string }) {
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@ -308,6 +310,32 @@ export class LeadService {
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publishArgs.enterpriseName = `${b2bIntegration.name}公司`
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publishArgs.enterpriseName = `${b2bIntegration.name}公司`
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}
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}
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// 预校验: B2B 平台字段长度限制 (tb_inquiry.title varchar(50))
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// 在调 MCP 之前先报错,避免拿到通用的"服务器内部异常"
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const TITLE_MAX_LEN = 50
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if (publishArgs.title && String(publishArgs.title).length > TITLE_MAX_LEN) {
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const titleLen = String(publishArgs.title).length
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throw new ServiceUnavailableException(
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[
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`发布失败: 询价标题超过 B2B 平台限制(最多 ${TITLE_MAX_LEN} 字)。`,
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`当前标题长度: ${titleLen} 字`,
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`建议: ① 把标题精简到 ${TITLE_MAX_LEN} 字以内后再发布; ② 或联系 B2B 平台把 tb_inquiry.title 字段改为 varchar(200) 永久解决。`,
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`线索标题: ${String(publishArgs.title).slice(0, 40)}${titleLen > 40 ? '...' : ''}`,
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].join('\n'),
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)
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}
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// 实时提取物料清单(detailUrl 正文 → 标题 → 兜底),传给产业平台 items 字段
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try {
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const items = await this.materialExtractor.extractItems(lead)
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if (items.length > 0) {
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publishArgs.items = items
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this.logger.log(`[发布] 物料清单提取完成 leadId=${id} ${items.length} 行`)
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}
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} catch (e: any) {
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this.logger.warn(`[发布] 物料清单提取失败(不阻断发布) leadId=${id}: ${e.message}`)
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}
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const result = await this.integrationService.executeTool<any>(
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const result = await this.integrationService.executeTool<any>(
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b2bIntegration.id,
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b2bIntegration.id,
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'publish_rfq',
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'publish_rfq',
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@ -331,9 +359,9 @@ export class LeadService {
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const payload = data.data || data
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const payload = data.data || data
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const rfqId = payload.rfqId || payload.id || null
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const rfqId = payload.rfqId || payload.id || null
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if (!rfqId) {
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if (!rfqId) {
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throw new ServiceUnavailableException(
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// 识别常见错误模式,给出明确提示
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`发布失败: B2B 平台返回了响应但未包含询价 ID。响应: ${JSON.stringify(payload).slice(0, 200)}`,
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const diagnosis = this.diagnosePublishError(lead, payload)
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)
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throw new ServiceUnavailableException(diagnosis)
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}
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}
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const inquiryNo = payload.orderId || rfqId
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const inquiryNo = payload.orderId || rfqId
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const direvUrl = `${b2bIntegration.endpoint}/inquiry/${rfqId}`
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const direvUrl = `${b2bIntegration.endpoint}/inquiry/${rfqId}`
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@ -443,4 +471,54 @@ export class LeadService {
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return []
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return []
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}
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}
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}
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}
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/**
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* 发布失败的诊断提示 — 把产业平台原始错误翻译成明确指引
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* 输入: lead(知道当前 title/quantity 等) + payload(产业平台响应)
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* 输出: 给前端展示的友好错误信息
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*/
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private diagnosePublishError(
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lead: {
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title?: string | null
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quantity?: number | null
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region?: string | null
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deadline?: string | null
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},
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payload: any,
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): string {
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// 把 payload 序列化用于关键词匹配
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const raw = JSON.stringify(payload || {}).slice(0, 500)
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const msg = String(payload?.msg || payload?.message || '')
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// 1. 标题超长(产业平台 tb_inquiry.title 是 varchar(50))
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if (
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/Data truncation|Data too long.*title|column 'title'.*too long/i.test(raw + ' ' + msg)
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) {
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const titleLen = (lead.title || '').length
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return [
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'发布失败: 询价标题超过 B2B 平台限制(最多 50 字)。',
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`当前线索标题长度: ${titleLen} 字`,
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`建议: ① 把标题精简到 50 字以内; ② 或联系 B2B 平台把 tb_inquiry.title 字段改为 varchar(200)。`,
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`线索标题: ${(lead.title || '').slice(0, 30)}${titleLen > 30 ? '...' : ''}`,
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].join('\n')
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}
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// 2. 数量字段异常
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if (/Data too long.*qty|column 'qty'|column 'quantity'/i.test(raw + ' ' + msg)) {
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return `发布失败: 询价数量字段超过 B2B 平台限制。当前 quantity=${lead.quantity}。建议改成合理数字(≤1000)。`
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}
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// 3. 企业/用户身份未通过
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if (/enterprise|user.*id|companyUserId|身份|权限/i.test(msg)) {
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return `发布失败: B2B 平台校验企业身份未通过(${msg})。请检查运营管理 → 系统配置 → MCP 对接配置的连接状态(状态灯应为绿色"已连接")。`
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}
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// 4. 必填字段缺失
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if (/required|不能为空|not.*null|缺失/i.test(msg)) {
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return `发布失败: B2B 平台提示必填字段缺失(${msg})。线索当前数据:quantity=${lead.quantity ?? '空'} region=${lead.region || '空'} deadline=${lead.deadline || '空'}。请补充完整后再发布。`
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}
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// 5. 默认:展示原始错误
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return `发布失败: B2B 平台返回了响应但未包含询价 ID。原因: ${msg || '未知错误'}。响应: ${raw}`
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}
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}
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}
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280
apps/api/src/lead/material-extractor.service.ts
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280
apps/api/src/lead/material-extractor.service.ts
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import { Injectable, Logger } from '@nestjs/common'
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const MINIMAX_ENDPOINT = 'https://api.minimaxi.com/v1/chat/completions'
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const MINIMAX_MODEL = process.env.MINIMAX_MODEL || 'MiniMax-M2.7'
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const DETAIL_FETCH_TIMEOUT_MS = 10_000 // detailUrl 正文抓取超时
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const TEXT_EXTRACT_TIMEOUT_MS = 30_000 // 正文物料提取超时
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const TITLE_EXTRACT_TIMEOUT_MS = 15_000 // 标题物资名提取超时
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const MAX_INPUT_CHARS = 4000
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export interface MaterialItem {
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productName: string
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quantity: number
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unit: string
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specification?: string
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brand?: string
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note?: string
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}
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const TEXT_SYSTEM_PROMPT = `你是招标公告物资清单提取助手。从以下公告内容中提取物资/物料明细。
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输出格式:纯 JSON 数组,不要解释,不要 markdown 代码块,不要 <think> 标签。
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每项格式:{"productName":"物资名称","quantity":数字,"unit":"单位","specification":"规格型号"}
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规则:
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- productName 必填,物资的具体名称(如:电力电缆、水泵、变压器)
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- quantity 提取到的数量,没有就填 1
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- unit 计量单位(件/米/吨/台/批等),没有就填"批"
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- specification 规格型号,没有就填空字符串
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- 最多输出 20 行
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- 如果内容里没有具体物资清单,返回 []`
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const TITLE_SYSTEM_PROMPT = `你是物资名称提取助手。从招标公告标题中提取涉及的物资名称。
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输出格式:纯 JSON 数组,不要解释,不要 markdown 代码块,不要 <think> 标签。
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每项格式:{"productName":"物资名称"}
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规则:
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- 只提取具体的物资/设备名称(如:油浸式电力变压器、电压互感器、水泵、逆变器)
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- 去掉"采购""招标""项目""变更公告"等噪声词
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- 如果标题里有多个物资(用顿号/逗号分隔),每个都提取
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- 如果标题只提到一类物资,提取 1 条
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- 如果完全无法判断物资名称,返回 []`
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/**
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* 物料清单提取服务
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*
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* 发布到产业平台时实时提取,降级链:
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* 1. 抓 detailUrl 正文 → AI 提取多行物料
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* 2. 抓不到 → AI 从标题提取物资名 (quantity=1, unit="批")
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* 3. AI 也失败 → 用 lead.title 兜底
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*/
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@Injectable()
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export class MaterialExtractorService {
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private readonly logger = new Logger(MaterialExtractorService.name)
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/**
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* 主入口 - 从 Lead 提取物料清单
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* 全程降级,任何异常都返回至少 1 条兜底数据,不阻断发布
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*/
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async extractItems(lead: { id: string; title: string; detailUrl?: string | null }): Promise<MaterialItem[]> {
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const apiKey = process.env.MINIMAX_API_KEY
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if (!apiKey) {
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this.logger.warn(`[物料提取] MINIMAX_API_KEY 未配置,走标题兜底 leadId=${lead.id}`)
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return this.fallbackWithTitle(lead.title)
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}
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// 第 1 步:尝试抓 detailUrl 正文
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if (lead.detailUrl) {
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try {
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const text = await this.fetchDetailText(lead.detailUrl)
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if (text.length > 100) {
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this.logger.log(`[物料提取] 抓到正文 leadId=${lead.id} textLen=${text.length}`)
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const items = await this.extractFromText(text, apiKey)
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if (items.length > 0) {
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this.logger.log(`[物料提取] 正文提取成功 leadId=${lead.id} ${items.length} 行`)
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return items
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}
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this.logger.log(`[物料提取] 正文提取为空,降级标题 leadId=${lead.id}`)
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} else {
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this.logger.log(`[物料提取] 正文过短(${text.length}字),降级标题 leadId=${lead.id}`)
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}
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} catch (e: any) {
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this.logger.warn(`[物料提取] 抓取正文失败 leadId=${lead.id}: ${e.message}`)
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}
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}
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// 第 2 步:从标题提取
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try {
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const items = await this.extractFromTitle(lead.title, apiKey)
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if (items.length > 0) {
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this.logger.log(`[物料提取] 标题提取成功 leadId=${lead.id} ${items.length} 行`)
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return items
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}
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} catch (e: any) {
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this.logger.warn(`[物料提取] 标题提取失败 leadId=${lead.id}: ${e.message}`)
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}
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// 第 3 步:兜底
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this.logger.log(`[物料提取] 走标题兜底 leadId=${lead.id}`)
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return this.fallbackWithTitle(lead.title)
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}
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/** 抓 detailUrl HTML 并转纯文本,失败返回空串 */
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private async fetchDetailText(detailUrl: string): Promise<string> {
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const r = await fetch(detailUrl, {
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signal: AbortSignal.timeout(DETAIL_FETCH_TIMEOUT_MS),
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headers: { 'User-Agent': 'Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X)' },
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})
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if (!r.ok) throw new Error(`HTTP ${r.status}`)
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const html = await r.text()
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return this.htmlToText(html)
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}
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/** 从正文提取物料行 */
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private async extractFromText(text: string, apiKey: string): Promise<MaterialItem[]> {
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const truncated = text.length > MAX_INPUT_CHARS
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? text.slice(0, MAX_INPUT_CHARS) + '\n[内容过长已截断]'
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: text
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const content = await this.callMinimax(
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TEXT_SYSTEM_PROMPT,
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truncated,
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apiKey,
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TEXT_EXTRACT_TIMEOUT_MS,
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2000,
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)
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return this.parseItems(content)
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}
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/** 从标题提取物资名,自动补 quantity=1 unit=批 */
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private async extractFromTitle(title: string, apiKey: string): Promise<MaterialItem[]> {
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const content = await this.callMinimax(
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TITLE_SYSTEM_PROMPT,
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title,
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apiKey,
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TITLE_EXTRACT_TIMEOUT_MS,
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800,
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)
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// 解析 [{productName: "xxx"}, ...]
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const raw = this.extractJsonArray(content)
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||||||
|
if (!raw) return []
|
||||||
|
let parsed: any[]
|
||||||
|
try {
|
||||||
|
parsed = JSON.parse(raw)
|
||||||
|
} catch {
|
||||||
|
return []
|
||||||
|
}
|
||||||
|
|
||||||
|
return parsed
|
||||||
|
.filter((item: any) => item && typeof item.productName === 'string' && item.productName.trim())
|
||||||
|
.map((item: any) => ({
|
||||||
|
productName: String(item.productName).trim(),
|
||||||
|
quantity: 1,
|
||||||
|
unit: '批',
|
||||||
|
specification: '',
|
||||||
|
}))
|
||||||
|
}
|
||||||
|
|
||||||
|
/** 调 MiniMax chat completion,返回 choices[0].message.content */
|
||||||
|
private async callMinimax(
|
||||||
|
systemPrompt: string,
|
||||||
|
userContent: string,
|
||||||
|
apiKey: string,
|
||||||
|
timeoutMs: number,
|
||||||
|
maxTokens: number,
|
||||||
|
): Promise<string> {
|
||||||
|
const r = await fetch(MINIMAX_ENDPOINT, {
|
||||||
|
method: 'POST',
|
||||||
|
headers: {
|
||||||
|
Authorization: `Bearer ${apiKey}`,
|
||||||
|
'Content-Type': 'application/json',
|
||||||
|
},
|
||||||
|
body: JSON.stringify({
|
||||||
|
model: MINIMAX_MODEL,
|
||||||
|
messages: [
|
||||||
|
{ role: 'system', content: systemPrompt },
|
||||||
|
{ role: 'user', content: userContent },
|
||||||
|
],
|
||||||
|
temperature: 0,
|
||||||
|
max_tokens: maxTokens,
|
||||||
|
}),
|
||||||
|
signal: AbortSignal.timeout(timeoutMs),
|
||||||
|
})
|
||||||
|
|
||||||
|
if (!r.ok) {
|
||||||
|
const errText = await r.text().catch(() => '')
|
||||||
|
throw new Error(`MiniMax API ${r.status}: ${errText.slice(0, 200)}`)
|
||||||
|
}
|
||||||
|
|
||||||
|
const data = (await r.json()) as { choices?: Array<{ message?: { content?: string } }> }
|
||||||
|
const content = data.choices?.[0]?.message?.content || ''
|
||||||
|
if (!content) throw new Error(`MiniMax 返回空: ${JSON.stringify(data).slice(0, 200)}`)
|
||||||
|
return content
|
||||||
|
}
|
||||||
|
|
||||||
|
/** 从 MiniMax 响应解析物料数组,带脏数据清洗 + 字段校验 */
|
||||||
|
private parseItems(content: string): MaterialItem[] {
|
||||||
|
const jsonStr = this.extractJsonArray(content)
|
||||||
|
if (!jsonStr) return []
|
||||||
|
|
||||||
|
let parsed: any[]
|
||||||
|
try {
|
||||||
|
parsed = JSON.parse(jsonStr)
|
||||||
|
} catch {
|
||||||
|
return []
|
||||||
|
}
|
||||||
|
if (!Array.isArray(parsed)) return []
|
||||||
|
|
||||||
|
const items: MaterialItem[] = []
|
||||||
|
for (const raw of parsed) {
|
||||||
|
if (!raw || typeof raw !== 'object') continue
|
||||||
|
const productName = typeof raw.productName === 'string' ? raw.productName.trim() : ''
|
||||||
|
if (!productName) continue
|
||||||
|
|
||||||
|
// quantity 必须是正数
|
||||||
|
let quantity = 1
|
||||||
|
if (typeof raw.quantity === 'number' && raw.quantity > 0) {
|
||||||
|
quantity = raw.quantity
|
||||||
|
} else if (typeof raw.quantity === 'string') {
|
||||||
|
const n = parseFloat(raw.quantity)
|
||||||
|
if (!isNaN(n) && n > 0) quantity = n
|
||||||
|
}
|
||||||
|
|
||||||
|
const unit = typeof raw.unit === 'string' && raw.unit.trim() ? raw.unit.trim() : '批'
|
||||||
|
const specification = typeof raw.specification === 'string' ? raw.specification.trim() : ''
|
||||||
|
|
||||||
|
items.push({ productName, quantity, unit, specification })
|
||||||
|
if (items.length >= 20) break
|
||||||
|
}
|
||||||
|
return items
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 从模型输出中提取 JSON 数组字符串
|
||||||
|
* 处理 <think> 标签、markdown 代码块、前后缀解释文字
|
||||||
|
*/
|
||||||
|
private extractJsonArray(content: string): string | null {
|
||||||
|
// 1. 剥 <think>...</think> 和 <think> 开放标签
|
||||||
|
let s = content
|
||||||
|
.replace(/<\/?think>/g, '')
|
||||||
|
.replace(/\*\*/g, '')
|
||||||
|
.trim()
|
||||||
|
|
||||||
|
// 2. 尝试从 markdown 代码块提取 ```json ... ``` 或 ``` ... ```
|
||||||
|
const codeBlock = s.match(/```(?:json)?\s*([\s\S]*?)```/i)
|
||||||
|
if (codeBlock) s = codeBlock[1].trim()
|
||||||
|
|
||||||
|
// 3. 提取第一个 [...] JSON 数组
|
||||||
|
const match = s.match(/\[[\s\S]*\]/)
|
||||||
|
return match ? match[0] : null
|
||||||
|
}
|
||||||
|
|
||||||
|
/** 兜底:用标题当物资名 */
|
||||||
|
private fallbackWithTitle(title: string): MaterialItem[] {
|
||||||
|
return [{ productName: title || '未命名物资', quantity: 1, unit: '批', specification: '' }]
|
||||||
|
}
|
||||||
|
|
||||||
|
/** HTML 转纯文本(复用 notes-extractor 的清洗逻辑) */
|
||||||
|
private htmlToText(html: string): string {
|
||||||
|
return html
|
||||||
|
.replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, ' ')
|
||||||
|
.replace(/<style\b[^<]*(?:(?!<\/style>)<[^<]*)*<\/style>/gi, ' ')
|
||||||
|
.replace(/<noscript\b[^<]*(?:(?!<\/noscript>)<[^<]*)*<\/noscript>/gi, ' ')
|
||||||
|
.replace(/<head\b[^<]*(?:(?!<\/head>)<[^<]*)*<\/head>/gi, ' ')
|
||||||
|
.replace(/<!--[\s\S]*?-->/g, ' ')
|
||||||
|
.replace(/<[^>]+>/g, '\n')
|
||||||
|
.replace(/ /g, ' ')
|
||||||
|
.replace(/&/g, '&')
|
||||||
|
.replace(/</g, '<')
|
||||||
|
.replace(/>/g, '>')
|
||||||
|
.replace(/"/g, '"')
|
||||||
|
.replace(/&#(\d+);/g, (_, dec) => String.fromCharCode(Number(dec)))
|
||||||
|
.split('\n')
|
||||||
|
.map(l => l.trim())
|
||||||
|
.filter(l => l.length > 0)
|
||||||
|
.join('\n')
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user