package main

import (
	MQTT "github.com/eclipse/paho.mqtt.golang"
	"math/rand"
	"encoding/json"
	"time"
)

type sensordata struct {
	Temperature	float32
	Humidity	float32
	Battery		float32
	Light		float32
}

func main() {
	opts := MQTT.NewClientOptions().AddBroker("tcp://localhost:1883")
	opts.SetClientID("go-sipmle-publish")

	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	rand.Seed(time.Now().UTC().UnixNano())

	for i := 0; i < 1000; i ++ {
		d := sensordata{randfun(0, 20), randfun(10, 30), randfun(0, 100), randfun(0, 255)}
		text, _ := json.Marshal(d)
		token := c.Publish("abqGF3nbCeYIYzOckDrU1vOq6uuU16rb/test/counter2/", 2, false, text)
		if token.Wait() && token.Error() != nil {
			panic(token.Error())
		}
		time.Sleep(5 * time.Second)
	}
}


func randfun(min int, max int) float32 {
	t := rand.Float32() * float32(max-min)

	return float32(min) + t
}