package classes

import (
	"context"

	"git.golem15.com/golem15/sm-user-plugin/models"
	"git.golem15.com/golem15/summercms/modules/towel"
)

// MailTemplate appends -en for English and leaves every other locale,
// including empty and pl, on the unsuffixed Polish template name.
func MailTemplate(base, locale string) string {
	if locale == "en" {
		return base + "-en"
	}
	return base
}

// ResolveMailLocale prefers the user's saved locale, then the request locale.
func ResolveMailLocale(ctx context.Context, user *models.User) string {
	if user != nil && user.PreferredLocale != nil && *user.PreferredLocale != "" {
		return *user.PreferredLocale
	}
	if loc, ok := towel.Locale(ctx); ok {
		return loc
	}
	return ""
}