package utl

import (
	"gopkg.in/gomail.v2"
)

type IMessager interface {
	Send([]string, string, string) error
}

type smtp struct {
	host               string
	port               int
	username, password string
	alias              string
}

func NewSmtp(host string, port int, username, password, alias string) IMessager {
	return &smtp{
		host:     host,
		port:     port,
		username: username,
		password: password,
		alias:    alias,
	}
}

func (self *smtp) Send(to []string, subject, body string) error {
	m := gomail.NewMessage( /* gomail.SetEncoding(gomail.Base64) */ )
	m.SetHeader("From", m.FormatAddress(self.username, self.alias))
	m.SetHeader("To", to...)
	m.SetHeader("Subject", subject)
	m.SetBody("text/html", body)
	//m.Attach("/tmp/foo.txt",
	//	gomail.Rename("foo.txt"),
	//	gomail.SetHeader(map[string][]string{
	//		"Content-Disposition": []string{
	//			fmt.Sprintf(`attachment; filename="%s"`, mime.QEncoding.Encode("UTF-8", name)),
	//		},
	//	}),
	//)
	d := gomail.NewDialer(self.host, self.port, self.username, self.password)
	return d.DialAndSend(m)
}

type disableMessager struct{}

func NewDisableMessager() IMessager {
	return &disableMessager{}
}

func (self *disableMessager) Send(to []string, subject, body string) error {
	return nil
}