package main

import (
	"errors"
	"log"
	"net/http"
	"os"
)

func CreateNewEntry(email, password string) error {
	server := os.Getenv("FREEMAIL_SMTP_MAILER_MX")

	if !ValidateEmail(email) {
		return errors.New("This doesn't look like a mail adress.")
	}

	vU := VirtualUser{Email: email, Password: password}

	if vU.EmailExists() {
		return errors.New("Mail adress already exists.")
	}

	vD := VirtualDomain{}
	vD.Name = GetDomain(vU.Email)

	// Checks for correct DNS
	if !vD.ValidateDomainMX(server) {
		if !vD.ValidateDomain(server) {
			return errors.New("Neither the MX record nor the domain itself point to this server. Please fix your DNS.")
		}
	}

	if !vD.DomainExists() {
		if !vD.CreateDomain() {
			return errors.New("There was an error.")
		}
	}

	vU.DomainId = vD.GetPrimaryKey()
	if vU.DomainId == 0 {
		return errors.New("There was an error.")
	}

	if !vU.CreateEmail() {
		return errors.New("There was an error.")
	}
	return nil
}

func ExecTemplate(template string, w http.ResponseWriter, flash Flash) error {
	index := mainTempl.Lookup(template)

	err := index.ExecuteTemplate(w, template, flash)
	if err != nil {
		log.Println(err)
		return err
	}
	return nil
}