const { Farm } = require('./models');
const { sequelize } = require('./config/database');
const farmController = require('./controllers/farmController');

// 模拟Express请求和响应对象
function createMockReq(body, params = {}) {
  return {
    body,
    params
  };
}

function createMockRes() {
  const res = {
    statusCode: 200,
    data: null,
    status: function(code) {
      this.statusCode = code;
      return this;
    },
    json: function(data) {
      this.data = data;
      return this;
    }
  };
  return res;
}

// 模拟前端输入处理逻辑
function simulateFrontendInputProcessing(userInput) {
  console.log(`\n🔍 模拟用户输入: "${userInput}"`);
  
  // 模拟 a-input-number 的 parser 函数
  const parser = (value) => {
    if (!value) return value;
    // 移除非数字字符，保留小数点和负号
    const cleaned = value.toString().replace(/[^\d.-]/g, '');
    // 确保只有一个小数点和负号在开头
    const parts = cleaned.split('.');
    if (parts.length > 2) {
      return parts[0] + '.' + parts.slice(1).join('');
    }
    return cleaned;
  };
  
  const parsedValue = parser(userInput);
  console.log(`   📝 Parser处理后: "${parsedValue}"`);
  
  // 模拟 v-model 的数值转换
  let finalValue;
  if (parsedValue === '' || parsedValue === undefined || parsedValue === null) {
    finalValue = undefined;
  } else {
    const numValue = parseFloat(parsedValue);
    finalValue = isNaN(numValue) ? undefined : numValue;
  }
  
  console.log(`   🔢 最终绑定值: ${finalValue} (类型: ${typeof finalValue})`);
  
  return finalValue;
}

// 测试各种用户输入场景
async function testCoordinateInputFlow() {
  console.log('=== 经纬度输入流程测试 ===\n');
  
  let testFarmId = null;
  
  try {
    // 1. 创建测试记录
    console.log('1. 创建测试养殖场...');
    const createReq = createMockReq({
      name: '输入测试农场',
      owner: '测试负责人',
      phone: '13800138003',
      address: '测试地址',
      longitude: 106.2309,
      latitude: 38.4872,
      status: 'active'
    });
    
    const createRes = createMockRes();
    await farmController.createFarm(createReq, createRes);
    
    testFarmId = createRes.data.data.id;
    console.log('✓ 创建成功，初始location:', createRes.data.data.location);
    
    // 2. 测试各种用户输入场景
    const testCases = [
      {
        name: '正常小数输入',
        longitude: '106.2400',
        latitude: '38.4900'
      },
      {
        name: '整数输入',
        longitude: '106',
        latitude: '38'
      },
      {
        name: '高精度小数输入',
        longitude: '106.234567',
        latitude: '38.487654'
      },
      {
        name: '负数输入',
        longitude: '-106.2400',
        latitude: '-38.4900'
      },
      {
        name: '包含非法字符的输入',
        longitude: '106.24abc',
        latitude: '38.49xyz'
      },
      {
        name: '多个小数点的输入',
        longitude: '106.24.56',
        latitude: '38.49.78'
      },
      {
        name: '空字符串输入',
        longitude: '',
        latitude: ''
      },
      {
        name: '只输入小数点',
        longitude: '.',
        latitude: '.'
      },
      {
        name: '边界值输入',
        longitude: '180.0',
        latitude: '90.0'
      },
      {
        name: '超出范围的输入',
        longitude: '200.0',
        latitude: '100.0'
      }
    ];
    
    for (let i = 0; i < testCases.length; i++) {
      const testCase = testCases[i];
      console.log(`\n${i + 2}. 测试场景: ${testCase.name}`);
      
      // 模拟前端输入处理
      const processedLongitude = simulateFrontendInputProcessing(testCase.longitude);
      const processedLatitude = simulateFrontendInputProcessing(testCase.latitude);
      
      // 构建提交数据
      const submitData = {
        name: '输入测试农场',
        owner: '测试负责人',
        phone: '13800138003',
        address: '测试地址',
        longitude: processedLongitude,
        latitude: processedLatitude,
        status: 'active'
      };
      
      console.log(`   📤 提交数据:`, {
        longitude: submitData.longitude,
        latitude: submitData.latitude
      });
      
      // 调用后端API
      const updateReq = createMockReq(submitData, { id: testFarmId });
      const updateRes = createMockRes();
      
      try {
        await farmController.updateFarm(updateReq, updateRes);
        
        console.log(`   ✅ 更新成功:`, {
          location: updateRes.data.data.location,
          has_lng: 'lng' in (updateRes.data.data.location || {}),
          has_lat: 'lat' in (updateRes.data.data.location || {})
        });
        
        // 验证数据范围
        const location = updateRes.data.data.location || {};
        if (location.lng !== undefined) {
          if (location.lng < -180 || location.lng > 180) {
            console.log(`   ⚠️  警告: 经度超出有效范围 (-180~180): ${location.lng}`);
          }
        }
        if (location.lat !== undefined) {
          if (location.lat < -90 || location.lat > 90) {
            console.log(`   ⚠️  警告: 纬度超出有效范围 (-90~90): ${location.lat}`);
          }
        }
        
      } catch (error) {
        console.log(`   ❌ 更新失败:`, error.message);
      }
    }
    
    console.log('\n=== 输入流程测试完成 ===');
    
  } catch (error) {
    console.error('❌ 测试过程中出现错误:', error);
    throw error;
  } finally {
    // 清理测试数据
    if (testFarmId) {
      console.log('\n🧹 清理测试数据...');
      try {
        await Farm.destroy({ where: { id: testFarmId } });
        console.log('✓ 测试数据已清理');
      } catch (error) {
        console.error('清理测试数据失败:', error);
      }
    }
  }
}

// 运行测试
if (require.main === module) {
  testCoordinateInputFlow()
    .then(() => {
      console.log('\n🎉 所有输入流程测试完成!');
      process.exit(0);
    })
    .catch((error) => {
      console.error('\n💥 输入流程测试失败:', error.message);
      process.exit(1);
    });
}

module.exports = { testCoordinateInputFlow };