Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplepress-backend/pkg/emailer/mailgun/mailgun.go

@@ -0,0 +1,86 @@
+package mailgun
+
+import (
+	"context"
+	"time"
+
+	"github.com/mailgun/mailgun-go/v4"
+	"go.uber.org/zap"
+)
+
+type mailgunEmailer struct {
+	config  MailgunConfigurationProvider
+	logger  *zap.Logger
+	Mailgun *mailgun.MailgunImpl
+}
+
+func NewEmailer(config MailgunConfigurationProvider, logger *zap.Logger) Emailer {
+	logger = logger.Named("mailgun-emailer")
+
+	// Initialize Mailgun client
+	mg := mailgun.NewMailgun(config.GetDomainName(), config.GetAPIKey())
+	mg.SetAPIBase(config.GetAPIBase()) // Override to support our custom email requirements.
+
+	logger.Info("✓ Mailgun emailer initialized",
+		zap.String("domain", config.GetDomainName()),
+		zap.String("api_base", config.GetAPIBase()))
+
+	return &mailgunEmailer{
+		config:  config,
+		logger:  logger,
+		Mailgun: mg,
+	}
+}
+
+func (me *mailgunEmailer) Send(ctx context.Context, sender, subject, recipient, body string) error {
+	me.logger.Debug("Sending email",
+		zap.String("sender", sender),
+		zap.String("recipient", recipient),
+		zap.String("subject", subject))
+
+	message := me.Mailgun.NewMessage(sender, subject, "", recipient)
+	message.SetHtml(body)
+
+	ctx, cancel := context.WithTimeout(ctx, time.Second*10)
+	defer cancel()
+
+	// Send the message with a 10 second timeout
+	resp, id, err := me.Mailgun.Send(ctx, message)
+
+	if err != nil {
+		me.logger.Error("Failed to send email",
+			zap.String("sender", sender),
+			zap.String("recipient", recipient),
+			zap.String("subject", subject),
+			zap.Error(err))
+		return err
+	}
+
+	me.logger.Info("Email sent successfully",
+		zap.String("recipient", recipient),
+		zap.String("subject", subject),
+		zap.String("message_id", id),
+		zap.String("response", resp))
+
+	return nil
+}
+
+func (me *mailgunEmailer) GetDomainName() string {
+	return me.config.GetDomainName()
+}
+
+func (me *mailgunEmailer) GetSenderEmail() string {
+	return me.config.GetSenderEmail()
+}
+
+func (me *mailgunEmailer) GetBackendDomainName() string {
+	return me.config.GetBackendDomainName()
+}
+
+func (me *mailgunEmailer) GetFrontendDomainName() string {
+	return me.config.GetFrontendDomainName()
+}
+
+func (me *mailgunEmailer) GetMaintenanceEmail() string {
+	return me.config.GetMaintenanceEmail()
+}