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

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

// 读取并分析日志文件
function analyzeGrossWeightLogs() {
  try {
    console.log(`正在分析日志文件: ${logFilePath}`);
    console.log('搜索与grossWeight相关的日志记录...\n');
    
    // 读取日志文件内容
    const logContent = fs.readFileSync(logFilePath, 'utf-8');
    const logLines = logContent.split('\n');
    
    // 存储找到的毛重相关记录
    const grossWeightRecords = [];
    const publishRequestRecords = [];
    
    // 搜索最近24小时的日志记录
    const twentyFourHoursAgo = new Date(Date.now() - 24 * 60 * 60 * 1000);
    
    // 遍历日志行
    for (let i = 0; i < logLines.length; i++) {
      const line = logLines[i];
      
      // 检查时间戳是否在最近24小时内
      const timestampMatch = line.match(/^(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2})/);
      if (timestampMatch) {
        const logDate = new Date(timestampMatch[1]);
        if (logDate < twentyFourHoursAgo) {
          continue; // 跳过24小时前的日志
        }
      }
      
      // 搜索与grossWeight相关的记录
      if (line.includes('grossWeight')) {
        grossWeightRecords.push({
          line: i + 1,
          content: line,
          timestamp: timestampMatch ? timestampMatch[1] : '未知'
        });
      }
      
      // 搜索商品发布请求
      if (line.includes('/api/product/publish')) {
        // 收集发布请求的上下文
        const contextLines = [];
        // 向前收集5行
        for (let j = Math.max(0, i - 5); j < Math.min(logLines.length, i + 20); j++) {
          contextLines.push(logLines[j]);
        }
        publishRequestRecords.push({
          line: i + 1,
          content: contextLines.join('\n'),
          timestamp: timestampMatch ? timestampMatch[1] : '未知'
        });
      }
    }
    
    // 输出分析结果
    console.log('===== 最近24小时毛重字段处理分析结果 =====\n');
    
    console.log(`找到 ${grossWeightRecords.length} 条与grossWeight相关的日志记录\n`);
    
    // 显示最近的10条毛重记录
    console.log('最近的10条毛重处理记录:');
    grossWeightRecords.slice(-10).forEach((record, index) => {
      console.log(`[${record.timestamp}] 第${record.line}行: ${record.content}`);
    });
    
    console.log('\n');
    
    // 显示最近的商品发布请求及其毛重处理
    console.log(`找到 ${publishRequestRecords.length} 条商品发布请求记录`);
    if (publishRequestRecords.length > 0) {
      console.log('\n最近的商品发布请求及毛重处理详情:');
      const latestPublish = publishRequestRecords[publishRequestRecords.length - 1];
      console.log(`\n时间: ${latestPublish.timestamp}`);
      console.log(`起始行号: ${latestPublish.line}`);
      console.log('详细内容:');
      
      // 解析请求体中的grossWeight值
      const requestBodyMatch = latestPublish.content.match(/请求体: \{([\s\S]*?)\}/);
      if (requestBodyMatch) {
        console.log(requestBodyMatch[0]);
        
        // 提取grossWeight值
        const grossWeightMatch = requestBodyMatch[0].match(/"grossWeight"\s*:\s*(null|\d+(\.\d+)?)/);
        if (grossWeightMatch) {
          console.log(`\n请求中的毛重值: ${grossWeightMatch[1]}`);
        }
      }
      
      // 查找毛重处理的相关日志
      const grossWeightProcessingMatch = latestPublish.content.match(/\[发布商品.*\] 原始毛重值:.*|毛重值.*设置为.*|最终处理的毛重值:.*|grossWeightStored:.*|毛重.*转换为数字/);
      if (grossWeightProcessingMatch) {
        console.log('\n毛重处理过程:');
        grossWeightProcessingMatch.forEach(processingLine => {
          console.log(processingLine);
        });
      }
    }
    
    // 生成总结
    console.log('\n===== 分析总结 =====');
    if (grossWeightRecords.length === 0) {
      console.log('在最近24小时内没有找到与grossWeight相关的日志记录。');
    } else {
      console.log(`在最近24小时内找到了 ${grossWeightRecords.length} 条与grossWeight相关的日志记录。`);
      
      // 简单统计
      const nullGrossWeightCount = grossWeightRecords.filter(r => r.content.includes('grossWeight: null')).length;
      const zeroGrossWeightCount = grossWeightRecords.filter(r => r.content.includes('grossWeight: 0')).length;
      const numericGrossWeightCount = grossWeightRecords.filter(r => /grossWeight:\s*\d+\.\d+/.test(r.content)).length;
      
      console.log(`- 毛重为null的记录数: ${nullGrossWeightCount}`);
      console.log(`- 毛重为0的记录数: ${zeroGrossWeightCount}`);
      console.log(`- 毛重为数字的记录数: ${numericGrossWeightCount}`);
    }
    
    console.log('\n提示: 如果需要查看更多详细信息，建议直接查看日志文件或使用更专业的日志分析工具。');
    
  } catch (error) {
    console.error('分析日志时发生错误:', error.message);
    console.log('\n建议手动查看日志文件:');
    console.log(`1. 打开文件: ${logFilePath}`);
    console.log('2. 搜索关键词: grossWeight');
    console.log('3. 特别关注: 发布商品请求中的grossWeight值和处理过程');
  }
}

// 执行分析
analyzeGrossWeightLogs();