'use strict';

const assert = require('assert/strict');
const path = require('path');
const { AgentKnowledgeStore, stripRetrievalAliases, scoreKnowledgeChunk } = require('../mcp/src/core/agent-knowledge');

function main() {
  const knowledge = new AgentKnowledgeStore({
    knowledgeDir: path.resolve(__dirname, '..', 'knowledge'),
  });

  const rules = knowledge.compactRulesText();
  assert.match(rules, /把客户当前问题闭环/);
  assert.match(rules, /像真人微信交流，普通回复限定 1-3 句、优先 50-80 字、问号最多 1 个/);
  assert.match(rules, /不是每轮必须提问/);
  assert.doesNotMatch(rules, /接触即邀约|默认朝向邀约带看|每一轮沟通的真实目的都是把客户约出来带看/);
  assert.doesNotMatch(rules, /专业房产经纪人|促成有效带看/);

  const index = knowledge.knowledgeIndex();
  assert.match(index, /knowledge\/customer-service\/chat-role\.md/);
  assert.doesNotMatch(index, /knowledge\/real-estate\//);

  const stats = knowledge.stats();
  assert(stats.knowledgeChunks >= 8, `expected knowledge chunks, got ${stats.knowledgeChunks}`);

  const headingHit = scoreKnowledgeChunk({
    heading: '北极星目标',
    content: '辅助说明',
  }, ['北极星']);
  const bodyHit = scoreKnowledgeChunk({
    heading: '其他',
    content: '这里也提到北极星作为背景',
  }, ['北极星']);
  assert(headingHit > bodyHit, `heading should outrank body: ${headingHit} vs ${bodyHit}`);

  const billing = knowledge.search('怎么收费', 5);
  assert(billing.length > 0);
  assert(billing.some(item => /收费|费用|人工/.test(`${item.heading}\n${item.content}`)));

  const aliasQuery = knowledge.search('客服机器人', 5);
  assert(aliasQuery.some(item => item.source === 'faq.md'));
  for (const item of aliasQuery) {
    assert.doesNotMatch(item.content, /常见说法/);
  }
  assert.equal(stripRetrievalAliases('> 常见说法：客服机器人\n\n正文').includes('常见说法'), false);

  process.stdout.write(`${JSON.stringify({
    status: 'ok',
    chunks: stats.knowledgeChunks,
    billingHits: billing.length,
  }, null, 2)}\n`);
}

try { main(); }
catch (error) {
  process.stderr.write(`${error.stack || error.message}\n`);
  process.exit(1);
}