A Stock Daily Report

#!/usr/bin/env node
/**
 * A股日报自动生成器（Node.js版本）
 * 功能：抓取东方财富板块数据，生成日报
 */

const https = require('https');
const http = require('http');
const path = require('path');

// 配置
const CONFIG = {
  eastmoneyBoardApi: 'http://push2.eastmoney.com/api/qt/clist/get',
  eastmoneyStockApi: 'http://push2.eastmoney.com/api/qt/stock/get',
};

/**
 * HTTP请求封装
 */
function httpGet(url, options = {}) {
  return new Promise((resolve, reject) => {
    const client = url.startsWith('https') ? https : http;
    const req = client.get(url, options, (res) => {
      let data = '';
      res.on('data', (chunk) => data += chunk);
      res.on('end', () => {
        try {
          resolve(JSON.parse(data));
        } catch (e) {
          reject(e);
        }
      });
    });

    req.on('error', reject);
    req.setTimeout(10000, () => {
      req.destroy();
      reject(new Error('Request timeout'));
    });
  });
}

/**
 * 获取板块数据
 */
async function fetchBoardData() {
  const params = new URLSearchParams({
    pn: '1',
    pz: '50',
    po: '1',
    np: '1',
    ut: 'bd1d9ddb04089700cf9c27f6f7426281',
    fltt: '2',
    invt: '2',
    fid: 'f3',
    fs: 'm:90+t:2',
    fields: 'f1,f2,f3,f4,f5,f6,f7,f12,f14',
  });

  const url = `${CONFIG.eastmoneyBoardApi}?${params.toString()}`;
  const options = {
    headers: {
      'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36',
      'Referer': 'http://quote.eastmoney.com/',
    },
  };

  try {
    const data = await httpGet(url, options);
    const boards = [];

    if (data?.data?.diff) {
      data.data.diff.forEach((item) => {
        const changeVal = item.f3 || 0;
        const changeStr = changeVal > 0 ? `+${changeVal.toFixed(2)}%` : `${changeVal.toFixed(2)}%`;

        boards.push({
          code: item.f12 || '',
          name: item.f14 || '',
          change: changeStr,
          amount: item.f6 || 0,
        });
      });
    }

    return boards;
  } catch (e) {
    console.error(`[ERROR] API 获取板块数据失败: ${e.message}`);
    return [];
  }
}

/**
 * 获取大盘指数数据
 */
async function fetchIndexData() {
  const indicesConfig = [
    { secid: '1.000001', key: 'sh_index', name: '上证指数' },
    { secid: '0.399001', key: 'sz_index', name: '深证成指' },
    { secid: '0.399006', key: 'cy_index', name: '创业板指' },
    { secid: '1.000688', key: 'kc_index', name: '科创板指' },
  ];

  const result = { failed: [], success: [] };

  for (const { secid, key, name } of indicesConfig) {
    const params = new URLSearchParams({
      secid: secid,
      fields: 'f43,f44,f45,f46,f47,f48,f49,f50,f51,f52,f55,f57,f58,f60,f170,f171',
    });

    const url = `${CONFIG.eastmoneyStockApi}?${params.toString()}`;
    const options = {
      headers: {
        'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)',
        'Referer': 'http://quote.eastmoney.com/',
      },
    };

    try {
      const data = await httpGet(url, options);
      if (data?.data) {
        const d = data.data;
        result[key] = (d.f43 / 100).toFixed(2);
        result[`${key}_change`] = `${(d.f170 / 100).toFixed(2)}%`;
        result.success.push(name);
      } else {
        throw new Error('数据为空');
      }
    } catch (e) {
      console.error(`[ERROR] 获取 ${name} 失败: ${e.message}`);
      result[key] = '--';
      result[`${key}_change`] = '--';
      result.failed.push(name);
    }
  }

  return result;
}

/**
 * 分析数据并构建报告数据
 */
function analyzeAndBuildReportData(boards, indices) {
  const boardFailed = !boards || boards.length === 0;

  // 热门板块（涨幅前5）
  let hotBoards = [];
  let focusBoards = [];
  let riskBoards = [];

  if (!boardFailed) {
    // 按涨幅排序
    const getChangeVal = (b) => {
      try {
        return parseFloat(b.change.replace('%', '').replace('+', '')) || 0;
      } catch {
        return 0;
      }
    };

    const sortedBoards = [...boards].sort((a, b) => getChangeVal(b) - getChangeVal(a));

    hotBoards = sortedBoards.slice(0, 5).map((b) => ({
      name: b.name,
      change: b.change,