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

// 读取server-mysql.js文件内容
function readServerFile() {
  return fs.readFileSync(path.join(__dirname, 'server-mysql.js'), 'utf8');
}

// 验证毛重字段处理逻辑
function verifyGrossWeightHandling() {
  try {
    const fileContent = readServerFile();
    
    // 初始化验证结果
    const verificationResult = {
      totalIssues: 0,
      successPoints: 0,
      issues: [],
      successDetails: []
    };

    // 检查响应中间件中的/products/list接口
    const listMiddlewarePattern = /data\.products\s*=\s*data\.products\.map\(product\s*=>\s*\{[\s\S]*?product\.grossWeight\s*=\s*([^;]+);/;
    const listMiddlewareMatch = fileContent.match(listMiddlewarePattern);
    
    if (listMiddlewareMatch && listMiddlewareMatch[1].includes('0')) {
      verificationResult.successPoints++;
      verificationResult.successDetails.push('✓ 响应中间件(/products/list)已正确设置空毛重默认值为0');
    } else {
      verificationResult.totalIssues++;
      verificationResult.issues.push('✗ 响应中间件(/products/list)未正确设置空毛重默认值');
    }

    // 检查响应中间件中的/data接口
    const dataMiddlewarePattern = /data\.data\.products\s*=\s*data\.data\.products\.map\(product\s*=>\s*\{[\s\S]*?product\.grossWeight\s*=\s*([^;]+);/;
    const dataMiddlewareMatch = fileContent.match(dataMiddlewarePattern);
    
    if (dataMiddlewareMatch && dataMiddlewareMatch[1].includes('0')) {
      verificationResult.successPoints++;
      verificationResult.successDetails.push('✓ 响应中间件(/data)已正确设置空毛重默认值为0');
    } else {
      verificationResult.totalIssues++;
      verificationResult.issues.push('✗ 响应中间件(/data)未正确设置空毛重默认值');
    }

    // 检查商品上传接口
    const uploadApiPattern = /app\.post\('\/api\/products\/upload',[\s\S]*?let\s+processedGrossWeight\s*=\s*(\d+)/;
    const uploadApiMatch = fileContent.match(uploadApiPattern);
    
    if (uploadApiMatch && uploadApiMatch[1] === '0') {
      verificationResult.successPoints++;
      verificationResult.successDetails.push('✓ 商品上传接口已正确设置空毛重默认值为0');
    } else {
      verificationResult.totalIssues++;
      verificationResult.issues.push('✗ 商品上传接口未正确设置空毛重默认值');
    }

    // 检查编辑商品API
    const editApiPattern = /parsedValue:\s*product\.grossWeight\s*===\s*''\s*\|\|\s*product\.grossWeight\s*===\s*null\s*\|\|\s*product\.grossWeight\s*===\s*undefined\s*\?\s*(\d+)/;
    const editApiMatch = fileContent.match(editApiPattern);
    
    if (editApiMatch && editApiMatch[1] === '0') {
      verificationResult.successPoints++;
      verificationResult.successDetails.push('✓ 编辑商品API已正确设置空毛重默认值为0');
    } else {
      verificationResult.totalIssues++;
      verificationResult.issues.push('✗ 编辑商品API未正确设置空毛重默认值');
    }

    // 检查是否还有设置为5的地方
    const remaining5Pattern = /grossWeight\s*=\s*5/g;
    const remaining5Matches = fileContent.match(remaining5Pattern);
    
    if (remaining5Matches && remaining5Matches.length > 0) {
      verificationResult.totalIssues += remaining5Matches.length;
      verificationResult.issues.push(`✗ 发现${remaining5Matches.length}处仍将毛重设置为5的地方`);
    } else {
      verificationResult.successPoints++;
      verificationResult.successDetails.push('✓ 未发现仍将毛重设置为5的残留代码');
    }

    // 检查是否正确实现了空值返回0的逻辑
    const emptyValueHandlingPattern = /product\.grossWeight\s*===\s*null\s*\|\|\s*product\.grossWeight\s*===\s*undefined\s*\|\|\s*product\.grossWeight\s*===\s*''\s*\?\s*0/g;
    const emptyValueMatches = fileContent.match(emptyValueHandlingPattern);
    
    if (emptyValueMatches && emptyValueMatches.length > 0) {
      verificationResult.successPoints++;
      verificationResult.successDetails.push(`✓ 发现${emptyValueMatches.length}处正确实现了空值返回0的逻辑`);
    }

    // 输出验证结果
    console.log('\n======== 毛重字段处理逻辑全面验证结果 ========');
    console.log('\n成功项:');
    verificationResult.successDetails.forEach(detail => console.log(detail));
    
    console.log('\n问题项:');
    if (verificationResult.issues.length === 0) {
      console.log('✓ 未发现任何问题');
    } else {
      verificationResult.issues.forEach(issue => console.log(issue));
    }
    
    console.log('\n总体评估:');
    if (verificationResult.totalIssues === 0) {
      console.log('✅ 验证成功: 所有毛重字段处理逻辑已正确实现');
      console.log('   已满足要求: 空值时小程序和数据库均返回0，非空值返回实际值');
    } else {
      console.log(`❌ 验证失败: 发现${verificationResult.totalIssues}个问题需要修复`);
    }
    
    console.log('==============================================');
    
    // 设置退出码
    process.exit(verificationResult.totalIssues > 0 ? 1 : 0);
    
  } catch (error) {
    console.error('验证过程中发生错误:', error);
    process.exit(1);
  }
}

// 执行验证
verifyGrossWeightHandling();