const fs = require('fs');
const path = require('path');

// 日志文件路径
const logFilePath = path.join(__dirname, 'logs', 'output.log');

// 读取日志文件并搜索关键字
function searchGrossWeightLogs() {
  try {
    console.log(`正在搜索日志文件: ${logFilePath}`);
    console.log('寻找商品发布请求和毛重处理相关记录...\n');
    
    // 读取日志文件内容
    const logContent = fs.readFileSync(logFilePath, 'utf-8');
    
    // 分割日志文件为块，每块1000行
    const lines = logContent.split('\n');
    const chunkSize = 1000;
    const chunks = [];
    
    for (let i = 0; i < lines.length; i += chunkSize) {
      chunks.push(lines.slice(i, i + chunkSize).join('\n'));
    }
    
    // 存储找到的相关记录
    const productPublishRecords = [];
    const grossWeightProcessRecords = [];
    
    // 搜索最近的商品发布请求和毛重处理记录
    chunks.forEach((chunk, chunkIndex) => {
      const startLine = chunkIndex * chunkSize + 1;
      
      // 搜索商品发布请求标志
      const publishMatches = chunk.matchAll(/(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}).*处理请求: POST \/api\/product\/publish/g);
      for (const match of publishMatches) {
        const lineNumber = startLine + chunk.substring(0, match.index).split('\n').length;
        productPublishRecords.push({
          timestamp: match[1],
          lineNumber: lineNumber,
          content: match[0]
        });
      }
      
      // 搜索毛重处理相关记录
      const weightMatches = chunk.matchAll(/(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}).*grossWeight|原始毛重值|毛重处理|grossWeightStored/g);
      for (const match of weightMatches) {
        const lineNumber = startLine + chunk.substring(0, match.index).split('\n').length;
        grossWeightProcessRecords.push({
          timestamp: match[1] || '未知',
          lineNumber: lineNumber,
          content: match[0]
        });
      }
    });
    
    // 输出结果
    console.log('===== 毛重相关日志搜索结果 =====\n');
    
    // 显示最近的商品发布请求
    console.log(`找到 ${productPublishRecords.length} 条商品发布请求记录`);
    if (productPublishRecords.length > 0) {
      console.log('\n最近的5条商品发布请求:');
      productPublishRecords.slice(-5).forEach((record, index) => {
        console.log(`[${record.timestamp}] 第${record.lineNumber}行: ${record.content}`);
      });
    }
    
    // 显示最近的毛重处理记录
    console.log('\n\n最近的10条毛重处理记录:');
    grossWeightProcessRecords.slice(-10).forEach((record, index) => {
      console.log(`[${record.timestamp}] 第${record.lineNumber}行: ${record.content}`);
    });
    
    // 给出建议
    console.log('\n\n===== 排查建议 =====');
    if (productPublishRecords.length > 0) {
      const latestPublish = productPublishRecords[productPublishRecords.length - 1];
      console.log(`1. 最近的商品发布请求在第${latestPublish.lineNumber}行，请查看该请求附近的详细日志`);
    }
    console.log('2. 手动搜索日志中的关键字:');
    console.log('   - "grossWeight" - 查看所有毛重字段相关记录');
    console.log('   - "原始毛重值" - 查看后端处理的原始值');
    console.log('   - "最终处理的毛重值" - 查看处理后的存储值');
    console.log('3. 检查前端传递的grossWeight格式是否正确');
    console.log('4. 确认数据库中商品记录的grossWeight字段实际值');
    
  } catch (error) {
    console.error('搜索日志时发生错误:', error.message);
    console.log('\n请尝试使用以下命令手动查看日志:');
    console.log('在PowerShell中运行:');
    console.log(`Get-Content -Path "${logFilePath}" | Select-String -Pattern "grossWeight|publish" -Context 2,5 | Select-Object -Last 20`);
  }
}

// 执行搜索
searchGrossWeightLogs();