package main

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/mailgun/mailgun-go/v4"
)

const yourDomain string = "sandbox403bedf0d09d4e539131fabf0ab7c11f.mailgun.org" // e.g. mg.yourcompany.com
const privateAPIKey string = "key-2b58bc1193c549df83d8d5ed54e1c982"

func main() {
	for {
		log.Println("Checking Fridge")
		if !endPointAlive() {
			log.Println("He Dead")
			sendMail()
		} else {
			log.Println("He Alive")
		}
		time.Sleep(3600 * time.Second)
	}
}

func endPointAlive() bool {

	res, err := http.Get("http://localhost:2122/heartbeat")
	if err != nil {
		log.Println(err)
		return false
	}

	if res.StatusCode != 200 {
		log.Println("Status Code ", res.StatusCode)
		return false
	} else {
		return true
	}
}

func sendMail() {
	mg := mailgun.NewMailgun(yourDomain, privateAPIKey)

	sender := "robviren@gmail.com"
	subject := "Fridge Lost Power!"
	body := "Make Rob go fix it!"
	recipient := "rcviren@gmail.com"

	message := mg.NewMessage(sender, subject, body, recipient)

	ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
	defer cancel()

	resp, id, err := mg.Send(ctx, message)

	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("ID: %s Resp: %s\n", id, resp)
}