package entity

import (
	"regexp"
	"strings"
	"time"
)

var testEmailRe = regexp.MustCompile(`^test(0[1-9]|10)@spark\.com$`)

// EmailBinding maps one normalized email to one user.
type EmailBinding struct {
	Email     string
	UserID    int64
	CreatedAt time.Time
}

func NormalizeEmail(email string) string {
	return strings.ToLower(strings.TrimSpace(email))
}

func IsTestEmail(email string) bool {
	return testEmailRe.MatchString(NormalizeEmail(email))
}