server and web app

apps/server/internal/email/sender.go

@@ -0,0 +1,67 @@
+package email
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"net/smtp"
+
+	"github.com/tim/cairnquire/apps/server/internal/config"
+)
+
+type Sender interface {
+	Send(ctx context.Context, to []string, subject, body string) error
+}
+
+type SMTPConfig struct {
+	Host string
+	Port int
+	From string
+}
+
+type SMTPSender struct {
+	cfg    SMTPConfig
+	logger *slog.Logger
+}
+
+func NewSMTPSender(cfg config.EmailConfig, logger *slog.Logger) *SMTPSender {
+	return &SMTPSender{
+		cfg: SMTPConfig{
+			Host: cfg.SMTPHost,
+			Port: cfg.SMTPPort,
+			From: cfg.From,
+		},
+		logger: logger,
+	}
+}
+
+func (s *SMTPSender) Send(ctx context.Context, to []string, subject, body string) error {
+	if s.cfg.Host == "" {
+		return fmt.Errorf("email host not configured")
+	}
+	addr := fmt.Sprintf("%s:%d", s.cfg.Host, s.cfg.Port)
+	msg := []byte(fmt.Sprintf("To: %s\r\nSubject: %s\r\n\r\n%s\r\n", to[0], subject, body))
+	
+	s.logger.Info("sending email", "to", to, "subject", subject, "addr", addr)
+	
+	// Use SMTP without auth for local testing (Mailpit/MailHog)
+	var auth smtp.Auth
+	err := smtp.SendMail(addr, auth, s.cfg.From, to, msg)
+	if err != nil {
+		return fmt.Errorf("send email: %w", err)
+	}
+	return nil
+}
+
+type NoOpSender struct {
+	logger *slog.Logger
+}
+
+func NewNoOpSender(logger *slog.Logger) *NoOpSender {
+	return &NoOpSender{logger: logger}
+}
+
+func (n *NoOpSender) Send(ctx context.Context, to []string, subject, body string) error {
+	n.logger.Info("email noop", "to", to, "subject", subject, "body_len", len(body))
+	return nil
+}