feat(ai): make reply suggestions natural and context-aware

server/test/business.test.js

@@ -2,6 +2,12 @@ import test from 'node:test'
 import assert from 'node:assert/strict'
 import { countBy, dateKey, percent, telegramAttachment } from '../src/business.js'
 import { decryptEmailPassword, encryptEmailPassword } from '../src/email.js'
+import {
+  HUMAN_REPLY_SYSTEM_PROMPT,
+  buildHumanReplyUserPrompt,
+  replySuggestionIssues,
+  replyToneInstruction,
+} from '../src/reply-suggestions.js'
 
 test('Telegram 图片、文档、语音和贴纸映射为可下载文件', () => {
   assert.deepEqual(
@@ -54,3 +60,41 @@ test('Email 渠道凭据使用认证加密且可正确解密', () => {
   tampered[2] = `${tampered[2][0] === 'A' ? 'B' : 'A'}${tampered[2].slice(1)}`
   assert.throws(() => decryptEmailPassword(tampered.join(':')))
 })
+
+test('回复建议提示词突出最新消息、避免重复并遵循企业语气', () => {
+  const prompt = buildHumanReplyUserPrompt({
+    targetInstruction: '使用西班牙语',
+    tone: 'friendly',
+    latestCustomerMessage: '¿Cuándo pueden enviarlo?',
+    latestAgentMessage: 'I will check it.',
+    conversation: '客户: ¿Cuándo pueden enviarlo?',
+    conversationMemory: '客户关注交期',
+    knowledgeContext: [],
+  })
+  assert.match(HUMAN_REPLY_SYSTEM_PROMPT, /不是写客服范文/)
+  assert.match(HUMAN_REPLY_SYSTEM_PROMPT, /不要重新问候/)
+  assert.match(prompt, /¿Cuándo pueden enviarlo\?/)
+  assert.match(prompt, /坐席上一条回复（避免重复）/)
+  assert.match(prompt, /长期合作伙伴/)
+  assert.match(replyToneInstruction('concise'), /简洁直接/)
+})
+
+test('回复建议质量检查拦截模板话术和同质草稿', () => {
+  const valid = [
+    { style: 'stable', content: 'I can confirm the dispatch date with our warehouse and update you once I have it.' },
+    { style: 'active', content: "Let me check the warehouse schedule and come back to you with the exact date." },
+    { style: 'brief', content: "I'll verify the dispatch date and get back to you." },
+  ]
+  assert.deepEqual(replySuggestionIssues(valid), [])
+  const invalid = valid.map((item) => ({ ...item }))
+  invalid[0].content = 'Dear customer, please rest assured that we value your feedback.'
+  invalid[2] = { style: 'active', content: invalid[1].content }
+  const issues = replySuggestionIssues(invalid)
+  assert.ok(issues.some((item) => item.includes('模板化')))
+  assert.ok(issues.some((item) => item.includes('缺少 brief')))
+  assert.ok(issues.some((item) => item.includes('过于相似')))
+  assert.ok(replySuggestionIssues([
+    ...valid.slice(0, 2),
+    { style: 'brief', content: "I'll confirm it today." },
+  ]).some((item) => item.includes('时间承诺')))
+})