package main

import (
	"fmt"
	"net/http"
	"net/url"
	"strconv"
)

type NotificationService interface {
	Post(message string)
}

type NotificationServices []NotificationService

// Post to all Notification Services
func (notificationServices *NotificationServices) Post(message string) {
	for _, notificationService := range *notificationServices {
		notificationService.Post(message)
	}
}

// Telegram
type Telegram struct {
	userId   int
	botToken string
}

var telegramBaseUrl = "https://api.telegram.org/bot"

func (t *Telegram) Post(message string) {
	params := url.Values{}
	params.Add("chat_id", strconv.Itoa(t.userId))
	params.Add("text", message)
	tgUrl, err := url.Parse(telegramBaseUrl + t.botToken + "/sendMessage")
	if err != nil {
		fmt.Println("Failed to create Telegram request")
		return
	}
	tgUrl.RawQuery = params.Encode()
	req, _ := http.NewRequest(http.MethodPost, tgUrl.String(), nil)
	resp, err := http.DefaultClient.Do(req)
	if err != nil || resp.StatusCode != 200 {
		fmt.Println("Failed to send Telegram message")
		return
	}
}