package business

import (
	"Dynamic_environmental_detection/connect"
	"encoding/json"
	"fmt"
	"strconv"
	"time"

	"Dynamic_environmental_detection/logger"
	"github.com/goburrow/modbus"
)

// BusinessManager 业务管理器
type BusinessManager struct {
	modbusClient   modbus.Client
	modbusConfig   *ModbusConfig
	dataCollector  *DataCollector
	dataProcessor  *DataProcessor
	reportManager  *ReportManager
	sensorConfigs  []SensorConfig
	hostUUID       string
	isFirstCollect bool
}

// NewBusinessManager 创建业务管理器
func NewBusinessManager(sensorConfigs []SensorConfig) (*BusinessManager, error) {
	if len(sensorConfigs) == 0 {
		return nil, fmt.Errorf("sensor configuration is empty")
	}

	// 从第一个配置获取host_uuid
	hostUUID := sensorConfigs[0].HostUUID

	// 创建Modbus配置
	modbusConfig := DefaultModbusConfig()

	// 创建数据采集器、处理器和上报管理器
	dataCollector := NewDataCollector(modbusConfig)
	dataProcessor := NewDataProcessor()
	reportManager := NewReportManager(hostUUID)

	logger.Logger.Printf("DEBUG: Business manager created, isFirstCollect initialized to: true")

	return &BusinessManager{
		modbusConfig:   modbusConfig,
		dataCollector:  dataCollector,
		dataProcessor:  dataProcessor,
		reportManager:  reportManager,
		sensorConfigs:  sensorConfigs,
		hostUUID:       hostUUID,
		isFirstCollect: true, // 初始化第一次采集标志
	}, nil
}

// StartDataCollection 启动数据采集和上报
func (bm *BusinessManager) StartDataCollection() error {
	logger.Logger.Printf("Starting sensor data collection, total sensors: %d", len(bm.sensorConfigs))
	startTime := time.Now()

	// 批量读取传感器数据
	sensorDataList, readErrors := bm.dataCollector.BatchReadSensorData(bm.sensorConfigs)

	// 更新设备状态并上报事件
	bm.updateDeviceStatuses(sensorDataList, readErrors)

	// 批量处理传感器数据
	processedDataList, processErrors := bm.dataProcessor.BatchProcessSensorData(sensorDataList)

	if len(processErrors) > 0 {
		logger.Logger.Printf("Partial data processing failed, error count: %d", len(processErrors))
		for _, err := range processErrors {
			logger.Logger.Printf("Processing error: %v", err)
		}
	}

	// 添加调试信息，检查是否为第一次采集
	logger.Logger.Printf("DEBUG: Is first collection: %v", bm.isFirstCollect)

	// 如果是第一次采集，上报整体状态
	if bm.isFirstCollect {
		logger.Logger.Printf("DEBUG: Processing first collection status report")
		bm.reportFirstCollectionStatus(sensorDataList, readErrors, processedDataList)
		bm.isFirstCollect = false // 标记为已完成第一次采集
		logger.Logger.Printf("DEBUG: First collection status report completed, isFirstCollect set to: %v", bm.isFirstCollect)
	}

	// 上报指标数据
	if len(processedDataList) > 0 {
		if err := bm.reportManager.ReportMetricData(processedDataList, bm.sensorConfigs); err != nil {
			logger.Logger.Printf("Failed to report metric data: %v", err)
		}
	}

	// 统计信息
	successCount := 0
	for _, data := range processedDataList {
		if bm.dataProcessor.IsDataValid(data) {
			successCount++
		}
	}

	totalTime := time.Since(startTime)
	logger.Logger.Printf("Data collection completed - Success: %d/%d, Read errors: %d, Process errors: %d, Total time: %v",
		successCount, len(bm.sensorConfigs), len(readErrors), len(processErrors), totalTime)

	return nil
}

// updateDeviceStatuses 更新所有设备状态
func (bm *BusinessManager) updateDeviceStatuses(sensorDataList []*SensorData, readErrors []error) {
	// 创建错误映射表
	errorMap := make(map[string]string)
	for _, err := range readErrors {
		// 从错误信息中提取deviceUUID（需要根据实际错误格式调整）
		errorMap["unknown"] = err.Error()
	}

	// 更新成功读取的设备状态
	for _, sensorData := range sensorDataList {
		bm.reportManager.UpdateAndReportDeviceStatus(
			sensorData.DeviceUUID,
			true,
			"",
			sensorData.SensorType,
		)
	}

	// 更新读取失败的设备状态
	for _, config := range bm.sensorConfigs {
		found := false
		for _, sensorData := range sensorDataList {
			if sensorData.DeviceUUID == config.DeviceUUID {
				found = true
				break
			}
		}

		if !found {
			// 设备读取失败
			errMsg := "Device read timeout or communication failure"
			if len(readErrors) > 0 {
				errMsg = readErrors[0].Error()
			}

			bm.reportManager.UpdateAndReportDeviceStatus(
				config.DeviceUUID,
				false,
				errMsg,
				config.GetSensorType(),
			)
		}
	}
}

// reportFirstCollectionStatus 上报第一次采集的系统状态
// reportFirstCollectionStatus 上报第一次采集的系统状态（新协议：批量发送所有在线设备的 online 事件）
func (bm *BusinessManager) reportFirstCollectionStatus(_ []*SensorData, _ []error, processedDataList []*ProcessedSensorData) {
	// 只使用 processedDataList 就够了，另外两个参数我们不需要但必须保留（调用方传了），用 _ 忽略
	successCount := len(processedDataList)
	totalCount := len(bm.sensorConfigs)

	logger.Logger.Printf("=== System First Collection Status Report ===")
	logger.Logger.Printf("Total devices: %d, Successfully collected and processed: %d", totalCount, successCount)

	// 收集成功设备的 UUID
	successUUIDs := make([]string, 0, successCount)
	for _, data := range processedDataList {
		successUUIDs = append(successUUIDs, data.DeviceUUID)
	}

	// 统一时间戳
	timestamp := strconv.FormatInt(time.Now().Unix(), 10)

	// 事件数组
	var events []map[string]interface{}

	for _, uuid := range successUUIDs {
		sensorName := "Unknown Sensor"
		for _, cfg := range bm.sensorConfigs {
			if cfg.DeviceUUID == uuid {
				sensorName = GetSensorTypeName(cfg.GetSensorType())
				break
			}
		}

		events = append(events, map[string]interface{}{
			"description": "Sensor online",
			"timestamp":   timestamp,
			"host_uuid":   bm.hostUUID,
			"deviceuuid":  uuid,
			"level":       "online",
			"sensor_type": sensorName,
		})
	}

	if len(events) == 0 {
		logger.Logger.Printf("No successful devices in first collection, skipping report")
		return
	}

	metric := map[string]interface{}{
		"type": "event",
		"args": events, // 批量数组！
	}

	routeKey := fmt.Sprintf("/dthjjc/device/%s/event", bm.hostUUID)

	// 打印完整 JSON 方便你看
	fullMsg := map[string]interface{}{
		"method": "metric_data",
		"params": map[string]interface{}{
			"route_key": routeKey,
			"metric":    metric,
		},
	}
	if b, err := json.Marshal(fullMsg); err == nil {
		logger.Logger.Printf("First collection batch online events: %s", string(b))
	}

	// 发送
	if err := connect.ReportMetricData(routeKey, metric); err != nil {
		logger.Logger.Printf("Failed to report first batch online events: %v", err)
	} else {
		logger.Logger.Printf("First collection successful, batch reported %d devices online", len(events))
	}
}

func (bm *BusinessManager) GetReportManager() *ReportManager {
	return bm.reportManager
}

// Close 关闭资源
func (bm *BusinessManager) Close() {
	logger.Logger.Printf("Business manager resources released")
}