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

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

@@ -0,0 +1,61 @@
+package mailgun
+
+type MailgunConfigurationProvider interface {
+	GetSenderEmail() string
+	GetDomainName() string // Deprecated
+	GetBackendDomainName() string
+	GetFrontendDomainName() string
+	GetMaintenanceEmail() string
+	GetAPIKey() string
+	GetAPIBase() string
+}
+
+type mailgunConfigurationProviderImpl struct {
+	senderEmail      string
+	domain           string
+	apiBase          string
+	maintenanceEmail string
+	frontendDomain   string
+	backendDomain    string
+	apiKey           string
+}
+
+func NewMailgunConfigurationProvider(senderEmail, domain, apiBase, maintenanceEmail, frontendDomain, backendDomain, apiKey string) MailgunConfigurationProvider {
+	return &mailgunConfigurationProviderImpl{
+		senderEmail:      senderEmail,
+		domain:           domain,
+		apiBase:          apiBase,
+		maintenanceEmail: maintenanceEmail,
+		frontendDomain:   frontendDomain,
+		backendDomain:    backendDomain,
+		apiKey:           apiKey,
+	}
+}
+
+func (me *mailgunConfigurationProviderImpl) GetDomainName() string {
+	return me.domain
+}
+
+func (me *mailgunConfigurationProviderImpl) GetSenderEmail() string {
+	return me.senderEmail
+}
+
+func (me *mailgunConfigurationProviderImpl) GetBackendDomainName() string {
+	return me.backendDomain
+}
+
+func (me *mailgunConfigurationProviderImpl) GetFrontendDomainName() string {
+	return me.frontendDomain
+}
+
+func (me *mailgunConfigurationProviderImpl) GetMaintenanceEmail() string {
+	return me.maintenanceEmail
+}
+
+func (me *mailgunConfigurationProviderImpl) GetAPIKey() string {
+	return me.apiKey
+}
+
+func (me *mailgunConfigurationProviderImpl) GetAPIBase() string {
+	return me.apiBase
+}

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

@@ -0,0 +1,12 @@
+package mailgun
+
+import "context"
+
+type Emailer interface {
+	Send(ctx context.Context, sender, subject, recipient, htmlContent string) error
+	GetSenderEmail() string
+	GetDomainName() string // Deprecated
+	GetBackendDomainName() string
+	GetFrontendDomainName() string
+	GetMaintenanceEmail() string
+}

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()
+}

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

@@ -0,0 +1,26 @@
+// File Path: monorepo/cloud/maplepress-backend/pkg/emailer/mailgun/provider.go
+package mailgun
+
+import (
+	"go.uber.org/zap"
+
+	"codeberg.org/mapleopentech/monorepo/cloud/maplepress-backend/config"
+)
+
+// ProvideMailgunConfigurationProvider creates a new Mailgun configuration provider from the application config.
+func ProvideMailgunConfigurationProvider(cfg *config.Config) MailgunConfigurationProvider {
+	return NewMailgunConfigurationProvider(
+		cfg.Mailgun.SenderEmail,
+		cfg.Mailgun.Domain,
+		cfg.Mailgun.APIBase,
+		cfg.Mailgun.MaintenanceEmail,
+		cfg.Mailgun.FrontendDomain,
+		cfg.Mailgun.BackendDomain,
+		cfg.Mailgun.APIKey,
+	)
+}
+
+// ProvideEmailer creates a new Mailgun emailer from the configuration provider.
+func ProvideEmailer(config MailgunConfigurationProvider, logger *zap.Logger) Emailer {
+	return NewEmailer(config, logger)
+}