/**
 * Tool C Day 2 API测试脚本
 * 
 * 测试内容：
 * 1. 创建测试Excel文件
 * 2. 上传文件创建Session
 * 3. 获取Session信息
 * 4. 获取预览数据
 * 5. 获取完整数据
 * 6. 更新心跳
 * 7. 删除Session
 * 
 * 执行方式：node test-tool-c-day2.mjs
 */

import FormData from 'form-data';
import axios from 'axios';
import * as XLSX from 'xlsx';
import { Buffer } from 'buffer';

const BASE_URL = 'http://localhost:3000';
const API_PREFIX = '/api/v1/dc/tool-c';

// ==================== 辅助函数 ====================

function printSection(title) {
  console.log('\n' + '='.repeat(70));
  console.log(`  ${title}`);
  console.log('='.repeat(70) + '\n');
}

function printSuccess(message) {
  console.log('✅ ' + message);
}

function printError(message) {
  console.log('❌ ' + message);
}

function printInfo(message) {
  console.log('ℹ️  ' + message);
}

// ==================== 创建测试Excel文件 ====================

function createTestExcelFile() {
  printSection('创建测试Excel文件');
  
  // 创建医疗数据
  const testData = [
    { patient_id: 'P001', name: '张三', age: 25, gender: '男', diagnosis: '感冒', sbp: 120, dbp: 80 },
    { patient_id: 'P002', name: '李四', age: 65, gender: '女', diagnosis: '高血压', sbp: 150, dbp: 95 },
    { patient_id: 'P003', name: '王五', age: 45, gender: '男', diagnosis: '糖尿病', sbp: 135, dbp: 85 },
    { patient_id: 'P004', name: '赵六', age: 70, gender: '女', diagnosis: '冠心病', sbp: 160, dbp: 100 },
    { patient_id: 'P005', name: '钱七', age: 35, gender: '男', diagnosis: '胃炎', sbp: 110, dbp: 70 },
    { patient_id: 'P006', name: '孙八', age: 55, gender: '女', diagnosis: '肺炎', sbp: 125, dbp: 82 },
    { patient_id: 'P007', name: '周九', age: 48, gender: '男', diagnosis: '肝炎', sbp: 130, dbp: 88 },
    { patient_id: 'P008', name: '吴十', age: 62, gender: '女', diagnosis: '关节炎', sbp: 145, dbp: 92 },
  ];
  
  // 创建工作簿
  const ws = XLSX.utils.json_to_sheet(testData);
  const wb = XLSX.utils.book_new();
  XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');
  
  // 生成Buffer
  const excelBuffer = XLSX.write(wb, { type: 'buffer', bookType: 'xlsx' });
  
  printSuccess(`测试文件创建成功: ${testData.length}行 x ${Object.keys(testData[0]).length}列`);
  printInfo(`文件大小: ${(excelBuffer.length / 1024).toFixed(2)} KB`);
  
  return {
    buffer: excelBuffer,
    fileName: 'test-medical-data.xlsx',
    expectedRows: testData.length,
    expectedCols: Object.keys(testData[0]).length,
  };
}

// ==================== API测试函数 ====================

async function testUploadFile(excelData) {
  printSection('测试1: 上传Excel文件创建Session');
  
  try {
    const form = new FormData();
    form.append('file', excelData.buffer, {
      filename: excelData.fileName,
      contentType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
    });
    
    printInfo(`上传文件: ${excelData.fileName}`);
    
    const response = await axios.post(
      `${BASE_URL}${API_PREFIX}/sessions/upload`,
      form,
      {
        headers: form.getHeaders(),
        timeout: 10000,
      }
    );
    
    if (response.status === 201 && response.data.success) {
      printSuccess('文件上传成功');
      console.log('响应数据:', JSON.stringify(response.data.data, null, 2));
      
      const { sessionId, totalRows, totalCols, columns } = response.data.data;
      
      // 验证数据
      if (totalRows === excelData.expectedRows && totalCols === excelData.expectedCols) {
        printSuccess(`数据验证通过: ${totalRows}行 x ${totalCols}列`);
      } else {
        printError(`数据不匹配: 预期${excelData.expectedRows}行x${excelData.expectedCols}列, 实际${totalRows}行x${totalCols}列`);
      }
      
      printInfo(`Session ID: ${sessionId}`);
      printInfo(`列名: ${columns.join(', ')}`);
      
      return sessionId;
    } else {
      printError('上传失败: ' + JSON.stringify(response.data));
      return null;
    }
  } catch (error) {
    printError('上传异常: ' + (error.response?.data?.error || error.message));
    if (error.response) {
      console.log('错误详情:', JSON.stringify(error.response.data, null, 2));
    }
    return null;
  }
}

async function testGetSession(sessionId) {
  printSection('测试2: 获取Session信息');
  
  try {
    printInfo(`Session ID: ${sessionId}`);
    
    const response = await axios.get(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}`,
      { timeout: 5000 }
    );
    
    if (response.status === 200 && response.data.success) {
      printSuccess('Session信息获取成功');
      console.log('Session信息:', JSON.stringify(response.data.data, null, 2));
      return true;
    } else {
      printError('获取失败');
      return false;
    }
  } catch (error) {
    printError('获取异常: ' + (error.response?.data?.error || error.message));
    return false;
  }
}

async function testGetPreviewData(sessionId) {
  printSection('测试3: 获取预览数据（前100行）');
  
  try {
    printInfo(`Session ID: ${sessionId}`);
    
    const response = await axios.get(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}/preview`,
      { timeout: 10000 }
    );
    
    if (response.status === 200 && response.data.success) {
      printSuccess('预览数据获取成功');
      
      const { totalRows, previewRows, previewData } = response.data.data;
      printInfo(`总行数: ${totalRows}, 预览行数: ${previewRows}`);
      printInfo(`预览数据前3行:`);
      console.log(JSON.stringify(previewData.slice(0, 3), null, 2));
      
      return true;
    } else {
      printError('获取预览数据失败');
      return false;
    }
  } catch (error) {
    printError('获取预览数据异常: ' + (error.response?.data?.error || error.message));
    return false;
  }
}

async function testGetFullData(sessionId) {
  printSection('测试4: 获取完整数据');
  
  try {
    printInfo(`Session ID: ${sessionId}`);
    
    const response = await axios.get(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}/full`,
      { timeout: 10000 }
    );
    
    if (response.status === 200 && response.data.success) {
      printSuccess('完整数据获取成功');
      
      const { totalRows, data } = response.data.data;
      printInfo(`总行数: ${totalRows}`);
      printInfo(`完整数据前2行:`);
      console.log(JSON.stringify(data.slice(0, 2), null, 2));
      
      return true;
    } else {
      printError('获取完整数据失败');
      return false;
    }
  } catch (error) {
    printError('获取完整数据异常: ' + (error.response?.data?.error || error.message));
    return false;
  }
}

async function testUpdateHeartbeat(sessionId) {
  printSection('测试5: 更新心跳');
  
  try {
    printInfo(`Session ID: ${sessionId}`);
    
    const response = await axios.post(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}/heartbeat`,
      {},
      { timeout: 5000 }
    );
    
    if (response.status === 200 && response.data.success) {
      printSuccess('心跳更新成功');
      console.log('新过期时间:', response.data.data.expiresAt);
      return true;
    } else {
      printError('心跳更新失败');
      return false;
    }
  } catch (error) {
    printError('心跳更新异常: ' + (error.response?.data?.error || error.message));
    return false;
  }
}

async function testDeleteSession(sessionId) {
  printSection('测试6: 删除Session');
  
  try {
    printInfo(`Session ID: ${sessionId}`);
    
    const response = await axios.delete(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}`,
      { timeout: 5000 }
    );
    
    if (response.status === 200 && response.data.success) {
      printSuccess('Session删除成功');
      return true;
    } else {
      printError('Session删除失败');
      return false;
    }
  } catch (error) {
    printError('Session删除异常: ' + (error.response?.data?.error || error.message));
    return false;
  }
}

async function testGetDeletedSession(sessionId) {
  printSection('测试7: 验证Session已删除');
  
  try {
    printInfo(`尝试获取已删除的Session: ${sessionId}`);
    
    const response = await axios.get(
      `${BASE_URL}${API_PREFIX}/sessions/${sessionId}`,
      { timeout: 5000 }
    );
    
    printError('Session仍然存在（不应该）');
    return false;
  } catch (error) {
    if (error.response?.status === 404) {
      printSuccess('Session已正确删除（返回404）');
      return true;
    } else {
      printError('未预期的错误: ' + error.message);
      return false;
    }
  }
}

// ==================== 主测试函数 ====================

async function runAllTests() {
  console.log('\n' + '🚀'.repeat(35));
  console.log('   Tool C Day 2 API测试');
  console.log('🚀'.repeat(35));
  
  const results = {};
  
  try {
    // 创建测试文件
    const excelData = createTestExcelFile();
    
    // 测试1: 上传文件
    const sessionId = await testUploadFile(excelData);
    results['上传文件'] = !!sessionId;
    
    if (!sessionId) {
      printError('上传失败，后续测试无法继续');
      return results;
    }
    
    // 等待1秒
    await new Promise(resolve => setTimeout(resolve, 1000));
    
    // 测试2: 获取Session信息
    results['获取Session'] = await testGetSession(sessionId);
    await new Promise(resolve => setTimeout(resolve, 500));
    
    // 测试3: 获取预览数据
    results['获取预览数据'] = await testGetPreviewData(sessionId);
    await new Promise(resolve => setTimeout(resolve, 500));
    
    // 测试4: 获取完整数据
    results['获取完整数据'] = await testGetFullData(sessionId);
    await new Promise(resolve => setTimeout(resolve, 500));
    
    // 测试5: 更新心跳
    results['更新心跳'] = await testUpdateHeartbeat(sessionId);
    await new Promise(resolve => setTimeout(resolve, 500));
    
    // 测试6: 删除Session
    results['删除Session'] = await testDeleteSession(sessionId);
    await new Promise(resolve => setTimeout(resolve, 500));
    
    // 测试7: 验证删除
    results['验证删除'] = await testGetDeletedSession(sessionId);
    
  } catch (error) {
    printError('测试过程中发生异常: ' + error.message);
    console.error(error);
  }
  
  // 汇总结果
  printSection('测试结果汇总');
  
  let passed = 0;
  let total = 0;
  
  for (const [testName, result] of Object.entries(results)) {
    total++;
    if (result) {
      passed++;
      console.log(`${testName.padEnd(20)}: ✅ 通过`);
    } else {
      console.log(`${testName.padEnd(20)}: ❌ 失败`);
    }
  }
  
  console.log('\n' + '-'.repeat(70));
  console.log(`总计: ${passed}/${total} 通过 (${((passed/total)*100).toFixed(1)}%)`);
  console.log('-'.repeat(70));
  
  if (passed === total) {
    console.log('\n🎉 所有测试通过！Day 2 Session管理功能完成！\n');
  } else {
    console.log(`\n⚠️  有 ${total - passed} 个测试失败，请检查\n`);
  }
}

// 执行测试
runAllTests()
  .then(() => {
    console.log('测试完成');
    process.exit(0);
  })
  .catch((error) => {
    console.error('测试失败:', error);
    process.exit(1);
  });