package main

import (
	"log"
	"net/smtp"
)

func sendEmail(mail_to, mail_default_authuser, mail_message string) {
	var auth smtp.Auth
	if getenv("MAILSERVER_USER", "") != "" {
		// Set up authentication information.
		auth = smtp.PlainAuth(
			"",
			getenv("MAILSERVER_USER", ""),
			getenv("MAILSERVER_PASSWORD", ""),
			getenv("MAILSERVER_HOST", "127.0.0.1"),
		)
	}
	// Connect to the server, authenticate, set the sender and recipient,
	// and send the email all in one step.
	err := smtp.SendMail(
		getenv("MAILSERVER_HOST", "127.0.0.1")+":"+getenv("MAILSERVER_PORT", "25"),
		auth,
		getenv("MAILSERVER_USER", mail_default_authuser),
		[]string{mail_to},
		[]byte(mail_message),
	)

	if err != nil {
		log.Fatal(err)
	}
}

func sendEmailMessage(username, message string) {
	mail_message := "To: " + username + `
From: info@wo-bisch.ch
Subject: ` + message + `

Lieber Benutzer von wo-bisch.ch

` + message + `
--
wo-bisch.ch`

	sendEmail(username, "mail@wo-bisch.ch", mail_message)
}