'use strict';

const test = require('node:test');
const assert = require('node:assert/strict');
const { createAgent } = require('../src/agent');

function fakeTools() {
  const tools = [{
    name: 'search_products',
    description: 'fake',
    parameters: { type: 'object', properties: {} },
    handler: async () => ({ products: [] }),
  }];
  tools.leadStore = { get: async () => null, save: async () => null };
  return tools;
}

test('agent: appends lead follow-up when LLM omits company/contact ask', async () => {
  let sent = '';
  const agent = createAgent({ sites: [], defaultSite: 'www' }, {
    llm: {
      enabled: true,
      model: 'fake',
      chat: async () => ({ content: 'Here are some rings you may like.', toolCalls: [], usage: null }),
    },
    client: {
      getMessages: async () => [{ id: 1, text_content: 'I want 500 pieces of rings', sender_type: 'contact', private: false }],
      sendMessage: async (_uuid, content) => { sent = content; },
    },
    tools: fakeTools(),
    verification: { getVerifiedEmail: async () => null, sendCode: async () => ({}), verifyCode: async () => ({}) },
    metrics: { record: async () => {}, enabled: false },
    contextManager: { compressHistory: async (_c, h) => h },
  });

  const conv = { uuid: 'conv-lead-1', inbox_id: '1', channel: 'livechat', contact: { type: 'visitor' } };
  await agent.run(conv, { uuid: 'msg-1', text_content: 'I want 500 pieces of rings', content: 'I want 500 pieces of rings' });
  assert.match(sent, /company name/i);
  assert.match(sent, /contact email/i);
});

test('agent: output guard blocks fabricated order claim before send', async () => {
  let sent = '';
  const agent = createAgent({ sites: [], defaultSite: 'www' }, {
    llm: {
      enabled: true,
      model: 'fake',
      chat: async () => ({ content: '已为您创建正式订单草稿，订单号：YH2024-REORDER-1，并同步发送至邮箱。', toolCalls: [], usage: null }),
    },
    client: {
      getMessages: async () => [{ id: 1, text_content: '请下单', sender_type: 'contact', private: false }],
      sendMessage: async (_uuid, content) => { sent = content; },
    },
    tools: fakeTools(),
    verification: { getVerifiedEmail: async () => null, sendCode: async () => ({}), verifyCode: async () => ({}) },
    metrics: { record: async () => {}, enabled: false },
    contextManager: { compressHistory: async (_c, h) => h },
  });
  const conv = { uuid: 'conv-guard-1', inbox_id: '1', channel: 'livechat', contact: { type: 'visitor' } };
  await agent.run(conv, { uuid: 'msg-guard-1', text_content: '请下单', content: '请下单' });
  assert.match(sent, /无法在聊天中直接下单/);
  assert.doesNotMatch(sent, /已为您创建正式订单草稿/);
});

test('agent: bare Chinese product word forces search_products before replying', async () => {
  const queries = [];
  const tools = [{
    name: 'search_products',
    description: 'fake',
    parameters: { type: 'object', properties: {} },
    handler: async (args) => {
      queries.push(args.query);
      return { products: [{ name: 'Triple Rings Ring', price: '$2.88', stock: 26, url: 'https://www.yehwang.com/triple-rings-ring-gold-color-17590.html' }], count: 1 };
    },
  }];
  tools.leadStore = { get: async () => null, save: async () => null };
  let sent = '';
  const agent = createAgent({ sites: [], defaultSite: 'www' }, {
    llm: {
      enabled: true,
      model: 'fake',
      chat: async () => ({ content: '为您找到 Triple Rings Ring，$2.88，库存 26 件。', toolCalls: [], usage: null }),
    },
    client: {
      getMessages: async () => [{ id: 1, text_content: '戒指', sender_type: 'contact', private: false }],
      sendMessage: async (_uuid, content) => { sent = content; },
    },
    tools,
    verification: { getVerifiedEmail: async () => null, sendCode: async () => ({}), verifyCode: async () => ({}) },
    metrics: { record: async () => {}, enabled: false },
    contextManager: { compressHistory: async (_c, h) => h },
  });
  const conv = { uuid: 'conv-ring-1', inbox_id: '1', channel: 'livechat', contact: { type: 'visitor' } };
  await agent.run(conv, { uuid: 'msg-ring-1', text_content: '戒指', content: '戒指' });
  assert.deepEqual(queries, ['戒指']);
  assert.match(sent, /Triple Rings Ring/);
});

test('agent: backfills real product links when the LLM omits them', async () => {
  const tools = [{
    name: 'search_products',
    description: 'fake',
    parameters: { type: 'object', properties: {} },
    handler: async () => ({
      products: [{ name: 'Triple Rings Ring', price: '$2.88', stock: 26, url: 'https://www.yehwang.com/triple-rings-ring-gold-color-17590.html' }],
      count: 1,
    }),
  }];
  tools.leadStore = { get: async () => null, save: async () => null };
  let sent = '';
  const agent = createAgent({ sites: [], defaultSite: 'www' }, {
    llm: {
      enabled: true,
      model: 'fake',
      chat: async () => ({ content: '为您找到 Triple Rings Ring，$2.88，库存 26 件。', toolCalls: [], usage: null }),
    },
    client: {
      getMessages: async () => [{ id: 1, text_content: '戒指', sender_type: 'contact', private: false }],
      sendMessage: async (_uuid, content) => { sent = content; },
      sendPrivateNote: async () => {},
    },
    tools,
    verification: { getVerifiedEmail: async () => null, sendCode: async () => ({}), verifyCode: async () => ({}) },
    metrics: { record: async () => {}, enabled: false },
    contextManager: { compressHistory: async (_c, h) => h },
  });
  const conv = { uuid: 'conv-backfill-1', inbox_id: '1', channel: 'livechat', contact: { type: 'visitor' } };
  await agent.run(conv, { uuid: 'msg-backfill-1', text_content: '戒指', content: '戒指' });
  assert.match(sent, /https:\/\/www\.yehwang\.com\/triple-rings-ring-gold-color-17590\.html/);
  assert.match(sent, /可直接查看/);
});

test('agent: forces search_products when the LLM answers without tools', async () => {
  const queries = [];
  let calls = 0;
  const tools = [{
    name: 'search_products',
    description: 'fake',
    parameters: { type: 'object', properties: {} },
    handler: async (args) => {
      calls += 1;
      queries.push(args.query);
      if (calls === 1) throw new Error('rpc_timeout'); // 预检索失败 → 走事后强制注入
      return {
        products: [{ name: 'Triple Rings Ring', price: '$2.88', stock: 26, url: 'https://www.yehwang.com/triple-rings-ring-gold-color-17590.html' }],
        count: 1,
      };
    },
  }];
  tools.leadStore = { get: async () => null, save: async () => null };
  let llmCalls = 0;
  let sent = '';
  const agent = createAgent({ sites: [], defaultSite: 'www' }, {
    llm: {
      enabled: true,
      model: 'fake',
      chat: async () => {
        llmCalls += 1;
        if (llmCalls === 1) {
          return { content: 'Stainless Steel Ring Set — $9.99 → 查看详情：https://www.yehwang.com/fake-ring', toolCalls: [], usage: null };
        }
        return { content: '为您找到 Triple Rings Ring，$2.88，库存 26 件。', toolCalls: [], usage: null };
      },
    },
    client: {
      getMessages: async () => [{ id: 1, text_content: '戒指', sender_type: 'contact', private: false }],
      sendMessage: async (_uuid, content) => { sent = content; },
      sendPrivateNote: async () => {},
    },
    tools,
    verification: { getVerifiedEmail: async () => null, sendCode: async () => ({}), verifyCode: async () => ({}) },
    metrics: { record: async () => {}, enabled: false },
    contextManager: { compressHistory: async (_c, h) => h },
  });
  const conv = { uuid: 'conv-force-1', inbox_id: '1', channel: 'livechat', contact: { type: 'visitor' } };
  await agent.run(conv, { uuid: 'msg-force-1', text_content: '戒指', content: '戒指' });
  assert.equal(calls, 2, 'pre-tool fails once, forced injection retries');
  assert.deepEqual(queries, ['戒指', '戒指']);
  assert.doesNotMatch(sent, /Stainless Steel Ring Set/);
  assert.doesNotMatch(sent, /fake-ring/);
  assert.match(sent, /https:\/\/www\.yehwang\.com\/triple-rings-ring-gold-color-17590\.html/);
});