import { APIClient } from '@d8d-appcontainer/api'
import debug from "debug"
import { ipMonitor, type IPMonitorResult } from './ip_monitor.ts';
import { readModbusRTU } from './modbus_rtu.ts';
import { Context } from "hono";
import { SmsController } from "../controllers/sms.ts";
import type { 
  DeviceAlert, DeviceMonitorData
} from '../../client/share/monitorTypes.ts';

import {
  DeviceCategory, DeviceStatus, AlertLevel, AlertStatus, NotifyType, 
  DeviceProtocolType, MetricType, NetworkStatus, PacketLossStatus
} from '../../client/share/monitorTypes.ts';

import {
  EnableStatus, DeleteStatus,
} from '../../client/share/types.ts';

const log = {
  app:debug('app:monitor'),
  debug:debug('debug:monitor')
};
// 设备监控功能
export const startMonitoring = (apiClient: APIClient) => {
  log.app('开始设备监控...');
  
  // 传感器类型轮巡配置
  const sensorCycles = [
    { type: MetricType.TEMPERATURE, interval: 30000 },  // 温度每30秒
    { type: MetricType.HUMIDITY, interval: 30000 },     // 湿度每30秒
    { type: 'smoke', interval: 60000 },                 // 烟感每分钟
    { type: 'water', interval: 60000 }                  // 水浸每分钟
  ];
  
  // 启动每种传感器的轮巡定时器
  sensorCycles.forEach((sensor) => {
    setInterval(async () => {
      try {
        // 获取需要监控的设备列表，联合查询设备实例和资产信息
        const devices = await apiClient.database
          .table('device_instances as di')
          .leftJoin('zichan_info as zi', 'di.id', 'zi.id')
          .select('di.*', 'zi.asset_name', 'zi.device_status', 'zi.device_category')
          .where('di.is_enabled', EnableStatus.ENABLED)
          .where('di.is_deleted', DeleteStatus.NOT_DELETED)
          .where('zi.is_deleted', DeleteStatus.NOT_DELETED);
      
      if (devices.length === 0) {
        log.app('没有找到可监控的设备实例');
        return;
      }
      
      log.app(`找到 ${devices.length} 个可监控的设备实例`);
      
      // 使用Promise.all并发处理所有设备
      await Promise.all(devices.map(async (device) => {
        try {
          // 更新设备的最后采集时间
          await apiClient.database.table('device_instances')
            .where('id', device.id)
            .update({
              last_collect_time: apiClient.database.fn.now(),
              updated_at: apiClient.database.fn.now()
            });
          
          // 生成当前传感器类型的监控数据
          const monitorData = await generateMonitorData(device, sensor.type);
          if (!monitorData || monitorData.length === 0) {
            log.debug(`设备 ${device.id} 未生成监控数据`);
            return;
          }
          
          // 并发插入监控数据
          await Promise.all(monitorData.map(async (data) => {
            try {
              const [insertId] = await apiClient.database.table('device_monitor_data').insert({
                ...data,
                collect_time: apiClient.database.fn.now(),
                created_at: apiClient.database.fn.now(),
                updated_at: apiClient.database.fn.now()
              });
              
              const insertedData = await apiClient.database.table('device_monitor_data')
                .select('*')
                .where('id', insertId)
                .first();

              const updateData:{network_status?: NetworkStatus, packet_loss?: PacketLossStatus} = {};

              if(data.metric_type === MetricType.NETWORK_TRAFFIC) {
                updateData.network_status = data.status === DeviceStatus.NORMAL ? NetworkStatus.CONNECTED : NetworkStatus.DISCONNECTED;
              }
              if(data.metric_type === MetricType.PACKET_LOSS) {
                updateData.packet_loss = data.status === DeviceStatus.NORMAL ? PacketLossStatus.NORMAL : PacketLossStatus.HIGH;
              }

              // 根据监控数据指标更新设备状态
              await apiClient.database.table('zichan_info')
                .where('id', device.id)
                .update({
                  device_status: insertedData.status,
                  ...updateData
                });
              
              // 检查是否触发告警
              if (insertedData) {
                await checkAndTriggerAlert(apiClient, insertedData);
              }
            } catch (error) {
              log.app(`监控数据 ${data.metric_type} 插入失败:`, error);
            }
          }));
        } catch (deviceError) {
          log.app(`设备 ${device.id} 处理失败:`, deviceError);
        }
      }));
    } catch (error) {
      log.app('监控数据收集失败:', error);
    }
  }, sensor.interval);
});
};

// 生成指定类型的监控数据
export const generateMonitorData = async (device: {
  id: number;
  device_category?: DeviceCategory;
  asset_name?: string;
  device_status?: DeviceStatus;
  address?: string;
  protocol?: DeviceProtocolType;
}, metricType: string) => {
  const data = [];
  const deviceCategory = device.device_category;
  const protocol = device.protocol;

  // 根据传感器类型生成特定数据
  switch (metricType) {
    case MetricType.TEMPERATURE:
    case MetricType.HUMIDITY:
      // 温湿度传感器数据
      if (protocol === DeviceProtocolType.MODBUS && device.address) {
        // 实际从MODBUS设备读取数据
        const result = await readModbusSensorData(device.address, metricType);
        if (result) {
          data.push({
            device_id: device.id,
            metric_type: metricType,
            metric_value: result.value,
            unit: result.unit,
            status: DeviceStatus.NORMAL
          });
        }
      } else {
        // 模拟数据
        data.push({
          device_id: device.id,
          metric_type: metricType,
          metric_value: metricType === MetricType.TEMPERATURE
            ? 20 + Math.random() * 15
            : 40 + Math.random() * 40,
          unit: metricType === MetricType.TEMPERATURE ? '°C' : '%',
          status: DeviceStatus.NORMAL
        });
      }
      break;

    case 'smoke':
      // 烟感传感器数据
      data.push({
        device_id: device.id,
        metric_type: 'smoke',
        metric_value: Math.random() > 0.95 ? 1 : 0, // 5%概率触发
        unit: '',
        status: Math.random() > 0.95 ? DeviceStatus.FAULT : DeviceStatus.NORMAL
      });
      break;

    case 'water':
      // 水浸传感器数据
      data.push({
        device_id: device.id,
        metric_type: 'water',
        metric_value: Math.random() > 0.9 ? 1 : 0, // 10%概率触发
        unit: '',
        status: Math.random() > 0.9 ? DeviceStatus.FAULT : DeviceStatus.NORMAL
      });
      break;
  }
  
  // // 根据设备类型生成不同的监控数据
  // if (deviceCategory === DeviceCategory.SERVER) {
  //   // CPU使用率
  //   data.push({
  //     device_id: device.id,
  //     metric_type: MetricType.CPU_USAGE,
  //     metric_value: Math.floor(Math.random() * 100),
  //     unit: '%',
  //     status: DeviceStatus.NORMAL
  //   });
    
  //   // 内存使用率
  //   data.push({
  //     device_id: device.id,
  //     metric_type: MetricType.MEMORY_USAGE,
  //     metric_value: Math.floor(Math.random() * 100),
  //     unit: '%',
  //     status: DeviceStatus.NORMAL
  //   });
    
  //   // 磁盘使用率
  //   data.push({
  //     device_id: device.id,
  //     metric_type: MetricType.DISK_USAGE,
  //     metric_value: Math.floor(Math.random() * 90),
  //     unit: '%',
  //     status: DeviceStatus.NORMAL
  //   });
  // }
  
  // // 温度 - 所有设备类型
  // data.push({
  //   device_id: device.id,
  //   metric_type: MetricType.TEMPERATURE,
  //   metric_value: 20 + Math.random() * 15,
  //   unit: '°C',
  //   status: DeviceStatus.NORMAL
  // });
  
  // // 湿度 - 所有设备类型
  // data.push({
  //   device_id: device.id,
  //   metric_type: MetricType.HUMIDITY,
  //   metric_value: 40 + Math.random() * 40,
  //   unit: '%',
  //   status: DeviceStatus.NORMAL
  // });
  
  // // 网络流量 - 所有设备类型
  // data.push({
  //   device_id: device.id,
  //   metric_type: MetricType.NETWORK_TRAFFIC,
  //   metric_value: Math.random() * 1000,
  //   unit: 'MB/s',
  //   status: DeviceStatus.NORMAL
  // });
  
  // IP地址连通性检测 - 根据不同协议生成不同的监控数据
  if (protocol === DeviceProtocolType.TCP && device.address) {
    // 使用真实的 IP 监控数据
    const ipResult = await new Promise<IPMonitorResult>((resolve) => {
      ipMonitor.startMonitor(device.address!, (result) => {
        resolve(result);
      });
    });
    
    // 根据协议类型添加特定的监控数据
    // switch (protocol) {
    //   case DeviceProtocolType.SNMP: {
    //     // SNMP协议设备 - 添加SNMP特有的监控指标
    //     const snmpResponseTime = Math.floor(10 + Math.random() * 90);
    //     data.push({
    //       device_id: device.id,
    //       metric_type: MetricType.SNMP_RESPONSE_TIME,
    //       metric_value: snmpResponseTime,
    //       unit: 'ms',
    //       status: snmpResponseTime > 80 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
    //     });
        
    //     // SNMP错误计数
    //     const snmpErrors = Math.floor(Math.random() * 5);
    //     data.push({
    //       device_id: device.id,
    //       metric_type: MetricType.SNMP_ERRORS,
    //       metric_value: snmpErrors,
    //       unit: '',
    //       status: snmpErrors > 2 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
    //     });
    //     break;
    //   }
        
    //   case DeviceProtocolType.HTTP: {
    //     // HTTP协议设备 - 添加HTTP特有的监控指标
    //     // HTTP响应时间
    //     const httpResponseTime = Math.floor(20 + Math.random() * 200);
    //     data.push({
    //       device_id: device.id,
    //       metric_type: MetricType.HTTP_RESPONSE_TIME,
    //       metric_value: httpResponseTime,
    //       unit: 'ms',
    //       status: httpResponseTime > 180 ? DeviceStatus.FAULT : 
    //              httpResponseTime > 100 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
    //     });
        
    //     // HTTP状态码
    //     const httpStatus = Math.random() > 0.9 ? 500 : 
    //                       Math.random() > 0.95 ? 404 : 200;
    //     data.push({
    //       device_id: device.id,
    //       metric_type: MetricType.HTTP_STATUS,
    //       metric_value: httpStatus,
    //       unit: '',
    //       status: httpStatus !== 200 ? DeviceStatus.FAULT : DeviceStatus.NORMAL
    //     });
    //     break;
    //   }
        
    //   case DeviceProtocolType.TCP: {
    //     // TCP协议设备
    //     // TCP连接时间
    //     const tcpConnTime = Math.floor(5 + Math.random() * 45);
    //     data.push({
    //       device_id: device.id,
    //       metric_type: MetricType.TCP_CONNECTION_TIME,
    //       metric_value: tcpConnTime,
    //       unit: 'ms',
    //       status: tcpConnTime > 30 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
    //     });
    //     break;
    //   }
    // }
    
    // 添加 IP 监控数据
    if (ipResult.success) {
      data.push({
        device_id: device.id,
        metric_type: MetricType.PING_TIME,
        metric_value: ipResult.responseTime || 0,
        unit: 'ms',
        status: ipResult.responseTime && ipResult.responseTime > 150 ? DeviceStatus.FAULT : 
               ipResult.responseTime && ipResult.responseTime > 100 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
      });
      
      data.push({
        device_id: device.id,
        metric_type: MetricType.PACKET_LOSS,
        metric_value: ipResult.packetLoss || 0,
        unit: '%',
        status: ipResult.packetLoss && ipResult.packetLoss > 5 ? DeviceStatus.FAULT : 
               ipResult.packetLoss && ipResult.packetLoss > 2 ? DeviceStatus.MAINTAIN : DeviceStatus.NORMAL
      });
      
      data.push({
        device_id: device.id,
        metric_type: MetricType.CONNECTION_STATUS,
        metric_value: ipResult.success ? NetworkStatus.CONNECTED : NetworkStatus.DISCONNECTED,
        unit: '',
        status: ipResult.success ? DeviceStatus.NORMAL : DeviceStatus.FAULT
      });
    } else {
      // IP 监控失败
      data.push({
        device_id: device.id,
        metric_type: MetricType.CONNECTION_STATUS,
        metric_value: NetworkStatus.DISCONNECTED,
        unit: '',
        status: DeviceStatus.FAULT
      });
    }
  }
  
  return data;
};

// 检查是否触发告警
export const checkAndTriggerAlert = async (apiClient: APIClient, monitorData: DeviceMonitorData) => {
  try {
    // 获取设备告警规则
    const rules = await apiClient.database.table('device_alert_rules')
      .select('*')
      .where('device_id', monitorData.device_id)
      .where('metric_type', monitorData.metric_type)
      .where('is_enabled', EnableStatus.ENABLED)
      .where('is_deleted', DeleteStatus.NOT_DELETED);
    
    if (!rules || rules.length === 0) {
      log.app(`未找到设备ID: ${monitorData.device_id} 的告警规则`);
      return;
    }
    
    // 获取设备信息 - 联合查询设备实例和资产信息
    const deviceInfo = await apiClient.database
      .table('device_instances as di')
      .leftJoin('zichan_info as zi', 'di.id', 'zi.id')
      .select('di.*', 'zi.asset_name', 'zi.device_category')
      .where('di.id', monitorData.device_id)
      .first();
    
    if (!deviceInfo) {
      log.app(`未找到设备ID: ${monitorData.device_id} 的信息`);
      return;
    }
    
    // 检查每条规则
    for (const rule of rules) {
      let isTriggered = false;

      // 确保 最小值 和 最大值 是数字
      if (rule.min_value !== null && typeof rule.min_value !== 'number') {
        rule.min_value = Number(rule.min_value);
      }
      if (rule.max_value !== null && typeof rule.max_value !== 'number') {
        rule.max_value = Number(rule.max_value);
      }
      
      // 检查最小值
      if (rule.min_value !== null && monitorData.metric_value < rule.min_value) {
        isTriggered = true;
      }
      
      // 检查最大值
      if (rule.max_value !== null && monitorData.metric_value > rule.max_value) {
        isTriggered = true;
      }
      
      if (isTriggered) {
        // 替换告警消息模板中的变量
        let alertMessage = rule.alert_message || `设备${deviceInfo.asset_name || deviceInfo.id}的${monitorData.metric_type}值异常: ${monitorData.metric_value}${monitorData.unit || ''}`;
        
        // 替换模板变量
        alertMessage = alertMessage
          .replace(/\{\{device_name\}\}/g, deviceInfo.asset_name || `设备${deviceInfo.id}`)
          .replace(/\{\{metric_value\}\}/g, monitorData.metric_value.toString())
          .replace(/\{\{unit\}\}/g, monitorData.unit || '');
        
        // 创建告警记录
        const [alertId] = await apiClient.database.table('device_alerts').insert({
          device_id: monitorData.device_id,
          device_name: deviceInfo.asset_name || `设备${deviceInfo.id}`,
          metric_type: monitorData.metric_type,
          metric_value: monitorData.metric_value,
          alert_level: rule.alert_level,
          alert_message: alertMessage,
          status: AlertStatus.PENDING,
          created_at: apiClient.database.fn.now(),
          updated_at: apiClient.database.fn.now()
        });
        
        const alert = await apiClient.database.table('device_alerts')
          .select('*')
          .where('id', alertId)
          .first();
        
        if (alert) {
          log.app(`触发告警: ${alertMessage}`);
          // 发送告警通知
          await sendAlertNotification(apiClient, alert);
        }
      }
    }
  } catch (error) {
    log.app('检查告警失败:', error);
  }
};

// 发送告警通知
export const sendAlertNotification = async (apiClient: APIClient, alert: DeviceAlert) => {
  try {
    // 查询告警通知配置
    const notifyConfigs = await apiClient.database.table('alert_notify_configs')
      .select('*')
      .where('device_id', alert.device_id)
      .where('alert_level', alert.alert_level)
      .where('is_enabled', EnableStatus.ENABLED)
      .where('is_deleted', DeleteStatus.NOT_DELETED);
    
    if (!notifyConfigs || notifyConfigs.length === 0) {
      log.app(`设备 ${alert.device_id} 没有配置告警级别 ${alert.alert_level} 的通知`);
      return;
    }
    
    // 对每个通知配置进行处理
    for (const config of notifyConfigs) {
      log.debug('通知配置 %O',config)
      // 解析通知用户列表
      const notifyUsers = config.notify_users || [];
      
      if (notifyUsers.length === 0) {
        log.app(`设备 ${alert.device_id} 的通知配置 ${config.id} 没有指定通知用户`);
        continue;
      }
      
      // 查询用户信息
      const users = await apiClient.database.table('users')
        .select('*')
        .whereIn('id', notifyUsers);
      
      if (!users || users.length === 0) {
        log.app(`找不到通知配置 ${config.id} 指定的用户`);
        continue;
      }
      
      // 替换通知模板变量
      let notifyContent = config.notify_template || `告警: ${alert.alert_message}`;
      notifyContent = notifyContent
        .replace(/\{\{alert_message\}\}/g, alert.alert_message)
        .replace(/\{\{alert_level\}\}/g, AlertLevel[alert.alert_level] || '未知');
      
      // 根据通知类型发送通知
      switch (config.notify_type) {
        case NotifyType.SMS:
          // 实现短信通知
          for (const user of users) {
            if (user.phone) {
              try {
                const smsContent = `【告警通知】
设备ID: ${alert.device_id}
告警级别: ${AlertLevel[alert.alert_level] || '未知'}
告警时间: ${new Date(alert.created_at).toLocaleString()}
告警内容: ${alert.alert_message}`;
                
                const mockCtx = {
                  req: {
                    json: async () => ({
                      phone: user.phone,
                      content: smsContent
                    })
                  }
                } as Context;
                await SmsController.sendSms(mockCtx);
                
                log.app(`成功发送短信通知给用户 ${user.username}(${user.phone})`);
              } catch (error) {
                log.app(`发送短信通知给用户 ${user.username}(${user.phone}) 失败:`, error);
              }
            } else {
              log.app(`用户 ${user.username} 没有配置手机号，无法发送短信通知`);
            }
          }
          break;
        
        case NotifyType.EMAIL:
          // 实现邮件通知
          for (const user of users) {
            if (user.email) {
              log.app(`向用户 ${user.username}(${user.email}) 发送邮件通知: ${notifyContent}`);
              // 实际环境中调用邮件发送API
            } else {
              log.app(`用户 ${user.username} 没有配置邮箱，无法发送邮件通知`);
            }
          }
          break;
        
        case NotifyType.WECHAT:
          // 实现微信通知
          for (const user of users) {
            log.app(`向用户 ${user.username} 发送微信通知: ${notifyContent}`);
            // 实际环境中调用微信发送API
          }
          break;
          
        default:
          log.app(`不支持的通知类型: ${config.notify_type}`);
          break;
      }
    }
  } catch (error) {
    log.app('发送告警通知失败:', error);
  }
};

// 从MODBUS设备读取传感器数据
async function readModbusSensorData(
  address: string,
  metricType: string
): Promise<{ value: number; unit: string } | null> {
  try {
    // 根据传感器类型设置不同的寄存器地址
    let registerAddress = 0;
    switch (metricType) {
      case MetricType.TEMPERATURE:
        registerAddress = 0x1000; // 温度寄存器地址
        break;
      case MetricType.HUMIDITY:
        registerAddress = 0x1002; // 湿度寄存器地址
        break;
      case 'smoke':
        registerAddress = 0x1004; // 烟感寄存器地址
        break;
      case 'water':
        registerAddress = 0x1006; // 水浸寄存器地址
        break;
    }

    // 调用modbus_rtu.ts中的方法读取数据
    const result = await readModbusRTU(address, registerAddress, 2);
    
    // 解析返回的数据
    if (result && result.length >= 2) {
      const value = (result[0] << 8) | result[1]; // 组合高低字节
      return {
        value: metricType === 'smoke' || metricType === 'water'
          ? value > 0 ? 1 : 0  // 烟感/水浸为开关量
          : value / 10,        // 温湿度为模拟量，除以10得到实际值
        unit: metricType === MetricType.TEMPERATURE ? '°C' :
              metricType === MetricType.HUMIDITY ? '%' : ''
      };
    }
    return null;
  } catch (error) {
    log.app(`读取MODBUS传感器数据失败: ${error}`);
    return null;
  }
}

// 设备监控功能
/**
 * 解析温湿度传感器十六进制数据
 * @param hexData 十六进制数据字符串，格式如"[02 04 04 01 02 02 65 A9 F3]"
 * @returns { temperature: number, humidity: number } 解析后的温湿度对象
 * @throws 如果数据格式无效会抛出错误
 */
export function parseTemperatureHumidity(hexData: string): {
  temperature: { value: number; unit: string };
  humidity: { value: number; unit: string };
  error?: string;
} {
  try {
    // 验证数据格式
    if (!/^\[\s*(?:[0-9A-Fa-f]{2}\s*)+\]$/.test(hexData)) {
      return {
        temperature: { value: 0, unit: '°C' },
        humidity: { value: 0, unit: '%' },
        error: '数据格式错误: 必须以方括号开头和结尾'
      };
    }

    // 提取十六进制字节数组
    const bytes = hexData
      .replace(/[\[\]\s]/g, '')
      .match(/.{1,2}/g)
      ?.map(byte => parseInt(byte, 16)) || [];

    if (bytes.length < 7) {
      return {
        temperature: { value: 0, unit: '°C' },
        humidity: { value: 0, unit: '%' },
        error: '数据长度不足: 至少需要7个十六进制字节'
      };
    }

    // 解析温度值 (01位)
    const tempInt = bytes[3];  // 整数部分
    const tempFrac = bytes[4]; // 小数部分
    const temperature = parseFloat(`${tempInt}.${tempFrac}`);

    // 解析湿度值 (02位)
    const humidityInt = bytes[5]; // 整数部分
    const humidityFrac = bytes[6]; // 小数部分
    const humidity = parseFloat(`${humidityInt}.${humidityFrac}`);

    return {
      temperature: { value: temperature, unit: '°C' },
      humidity: { value: humidity, unit: '%' }
    };
  } catch (error) {
    return {
      temperature: { value: 0, unit: '°C' },
      humidity: { value: 0, unit: '%' },
      error: '数据解析失败: ' + (error instanceof Error ? error.message : String(error))
    };
  }
}