package main

import (
	"time"
)

// 传感器数据结构
type SensorData struct {
	WindSpeed        int
	WindForce        int
	WindDirection8   int
	WindDirection360 int
	Humidity         int
	Temperature      int
	Noise            int
	PM25             int
	PM10             int
	AtmPressure      int
	Lux20WH          int
	Lux20WL          int
	Light20W         int
	OpticalRain      int
	CompassAngle     int
	SolarRadiation   int
	Timestamp        time.Time
}

// 解析传感器数据
func parseData(data []byte) *SensorData {
	// 检查响应格式是否正确
	if len(data) < 37 || data[0] != 0x01 || data[1] != 0x03 || data[2] != 0x20 {
		logger.Println("响应格式无效")
		return nil
	}

	// 提取数据部分
	dataBytes := data[3:35] // 跳过地址码、功能码、长度，不包括CRC

	sensorData := SensorData{
		WindSpeed:        bytesToInt(dataBytes[0:2]),
		WindForce:        bytesToInt(dataBytes[2:4]),
		WindDirection8:   bytesToInt(dataBytes[4:6]),
		WindDirection360: bytesToInt(dataBytes[6:8]),
		Humidity:         bytesToInt(dataBytes[8:10]),
		Temperature:      bytesToInt(dataBytes[10:12]),
		Noise:            bytesToInt(dataBytes[12:14]),
		PM25:             bytesToInt(dataBytes[14:16]),
		PM10:             bytesToInt(dataBytes[16:18]),
		AtmPressure:      bytesToInt(dataBytes[18:20]),
		Lux20WH:          bytesToInt(dataBytes[20:22]),
		Lux20WL:          bytesToInt(dataBytes[22:24]),
		Light20W:         bytesToInt(dataBytes[24:26]),
		OpticalRain:      bytesToInt(dataBytes[26:28]),
		CompassAngle:     bytesToInt(dataBytes[28:30]),
		SolarRadiation:   bytesToInt(dataBytes[30:32]),
		Timestamp:        time.Now(),
	}

	return &sensorData
}

// 记录传感器数据到日志
func logSensorData(data SensorData) {
	logger.Printf("[传感器] 时间: %s, 温度: %.1f°C, 湿度: %.1f%%, 风速: %.2fm/s (%d°), 雨量: %.1fmm, PM2.5: %dμg/m³", 
		data.Timestamp.Format("2006-01-02 15:04:05"),
		float64(data.Temperature)/10.0,
		float64(data.Humidity)/10.0,
		float64(data.WindSpeed)/100.0,
		data.WindDirection360,
		float64(data.OpticalRain)/10.0,
		data.PM25)
}

// 将两个字节转换为整数
func bytesToInt(bytes []byte) int {
	if len(bytes) != 2 {
		return 0
	}
	return int(bytes[0])<<8 | int(bytes[1])
}