gogjango/gjango

package mail

import (
    "os"

    "github.com/gogjango/gjango/config"
    "github.com/gogjango/gjango/model"
    "github.com/sendgrid/sendgrid-go"
    s "github.com/sendgrid/sendgrid-go/helpers/mail"
)

// NewMail generates new Mail variable
func NewMail(mc *config.MailConfig, sc *config.SiteConfig) *Mail {
    return &Mail{
        ExternalURL: sc.ExternalURL,
        FromName:    mc.Name,
        FromEmail:   mc.Email,
    }
}

// Mail provides a mail service implementation
type Mail struct {
    ExternalURL string
    FromName    string
    FromEmail   string
}

// Send email with sendgrid
func (m *Mail) Send(subject string, toName string, toEmail string, content string) error {
    from := s.NewEmail(m.FromName, m.FromEmail)
    to := s.NewEmail(toName, toEmail)
    plainTextContent := content
    message := s.NewSingleEmail(from, subject, to, plainTextContent, content)
    client := sendgrid.NewSendClient(os.Getenv("SENDGRID_API_KEY"))
    _, err := client.Send(message)
    if err != nil {
        return err
    }
    return nil
}

// SendWithDefaults assumes some defaults for sending out email with sendgrid
func (m *Mail) SendWithDefaults(subject, toEmail, content string) error {
    err := m.Send(subject, toEmail, toEmail, content)
    if err != nil {
        return err
    }
    return nil
}

// SendVerificationEmail assumes defaults and generates a verification email
func (m *Mail) SendVerificationEmail(toEmail string, v *model.Verification) error {
    url := m.ExternalURL + "/verification/" + v.Token
    content := "Click on this to verify your account " + url
    err := m.SendWithDefaults("Verification Email", toEmail, content)
    if err != nil {
        return err
    }
    return nil
}