package draginoLsn50

import (
  "fmt"
  "encoding/json"
  "udi/database"
)

/*
      "decoded_payload": {
        "ALARM_status": "FALSE",
        "BatV": 3.659,
        "Temp_Black": 3276.7,
        "Temp_Red": 22.6,
        "Temp_White": 3276.7,
        "Work_mode": "DS18B20"
      },
*/
type message struct {
  ALARM_status string `json:"ALARM_status"`
  Bat float32 `json:"BatV"`
  Work_mode string `json:"Work_mode"`
  Temp_Black float32 `json:"Temp_Black"`
  Temp_Red float32 `json:"Temp_Red"`
  Temp_White float32 `json:"Temp_White"`
}

func Parse(fPort int, decodedPayload []byte, _ string, variables *map[string]database.VariableType, attributes *map[string]interface{}, device *database.Device) error {
  if fPort != 2 {
    return fmt.Errorf("Unexpected fPort %d", fPort)
  }
  var message message
  err := json.Unmarshal(decodedPayload, &message)
  if err != nil {
    return fmt.Errorf("Unable to parse payload, fPort %d, error %s", fPort, err)
  }
  (*variables)["Battery"] = database.VariableType {
    Label: "Battery",
    Variable: "Voltage",
    Unit: "V",
    Value: message.Bat,
  }
  (*variables)["Alarm"] = database.VariableType {
    Label: "Alarm",
    Variable: "Alarm",
    Unit: "",
    Value: message.ALARM_status,
  }
  (*variables)["Temp_Red"] = database.VariableType {
    Label: "Temp_Red",
    Variable: "Temperature",
    Unit: "°C",
    Value: message.Temp_Red,
  }
  (*variables)["Temp_Black"] = database.VariableType {
    Label: "Temp_Black",
    Variable: "Temperature",
    Unit: "°C",
    Value: message.Temp_Black,
  }
  (*variables)["Temp_White"] = database.VariableType {
    Label: "Temp_White",
    Variable: "Temperature",
    Unit: "°C",
    Value: message.Temp_White,
  }

  (*attributes)["Status"] = "Ok"

  return nil
}