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mailer.go
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mailer.go
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package mailer
import (
"github.com/pkg/errors"
"github.com/qor/assetfs"
"github.com/qor/render"
)
// SenderInterface sender's interface
type SenderInterface interface {
Send(Email) error
}
// Mailer mailer struct
type Mailer struct {
*Config
}
// Config mailer config
type Config struct {
DefaultEmailTemplate *Email
AssetFS assetfs.Interface
Sender SenderInterface
*render.Render
}
// New initialize mailer
func New(config *Config) (*Mailer, error) {
if config == nil {
config = &Config{}
}
if config.AssetFS == nil {
config.AssetFS = assetfs.AssetFS().NameSpace("mailer")
}
if err := config.AssetFS.RegisterPath("app/views/auth/mail"); err != nil {
return nil, errors.Wrap(err, "Mailer: could not registerPath")
}
if config.Render == nil {
config.Render = render.New(nil)
config.Render.SetAssetFS(config.AssetFS)
}
return &Mailer{config}, nil
}
// Send send email
func (mailer Mailer) Send(email Email, templates ...Template) error {
if mailer.DefaultEmailTemplate != nil {
email = mailer.DefaultEmailTemplate.Merge(email)
}
if len(templates) == 0 {
return mailer.Sender.Send(email)
}
for i, template := range templates {
m, err := mailer.Render(template)
if err != nil {
return errors.Wrapf(err, "failed to render email template(%d): %s", i, template.Name)
}
if err := mailer.Sender.Send(m.Merge(email)); err != nil {
return errors.Wrapf(err, "failed to send email template(%d): %s", i, template.Name)
}
}
return nil
}