package main

import (
	"net/smtp"
	"os"
)

var smtpConfigured bool
var smtpAuth smtp.Auth

func smtpConfigure() error {
	username := os.Getenv("SMTP_USERNAME")
	password := os.Getenv("SMTP_PASSWORD")
	host := os.Getenv("SMTP_HOST")
	if username == "" || password == "" || host == "" {
		logger.Warningf("smtp not configured, no emails will be sent")
		smtpConfigured = false
		return nil
	}

	if os.Getenv("SMTP_FROM_ADDRESS") == "" {
		logger.Errorf("SMTP_FROM_ADDRESS not set")
		smtpConfigured = false
		return errorMissingSmtpAddress
	}

	logger.Infof("configuring smtp: %s", host)
	smtpAuth = smtp.PlainAuth("", username, password, host)
	smtpConfigured = true
	return nil
}