package main

import (
    "fmt"
    "log"

    "github.com/elchemista/elsys_sensor"
)

func main() {
    // create a new decoder
    d := elsys.NewDecoder()

    // base64 payload from your device
    payload := "AQDXAjI="

    // decode to measurements
    measurements, err := d.Decode(payload)
    if err != nil {
        log.Fatalf("decode error: %v", err)
    }

    // print out each metric
    for _, m := range measurements {
        fmt.Printf("%-12s = %.2f\n", m.Name, m.Value)
    }
}

type Measurement struct {
    Name  string  // metric key, e.g. "temperature", "co2", "vdd"
    Value float64 // value in appropriate units
}

type Decoder struct{}

func NewDecoder() *Decoder
    // returns a fresh Decoder

func (d *Decoder) Decode(b64 string) ([]Measurement, error)
    // parses an Elsys Base64 payload into typed measurements