initial commit. Cloned timetracker repository

app/service/emailService/email.go

@@ -0,0 +1,138 @@
+package emailService
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"net/smtp"
+	"strings"
+
+	"git.ma-al.com/goc_marek/timetracker/app/config"
+	"git.ma-al.com/goc_marek/timetracker/app/service/langs"
+	"git.ma-al.com/goc_marek/timetracker/app/templ/emails"
+	"git.ma-al.com/goc_marek/timetracker/app/utils/i18n"
+	"git.ma-al.com/goc_marek/timetracker/app/view"
+)
+
+// EmailService handles sending emails
+type EmailService struct {
+	config *config.EmailConfig
+}
+
+// NewEmailService creates a new EmailService instance
+func NewEmailService() *EmailService {
+	return &EmailService{
+		config: &config.Get().Email,
+	}
+}
+
+// getLangID returns the language ID from the ISO code using the language service
+func getLangID(isoCode string) uint {
+	if isoCode == "" {
+		isoCode = "en"
+	}
+
+	lang, err := langs.LangSrv.GetLanguageByISOCode(isoCode)
+	if err != nil || lang == nil {
+		return 1 // Default to English (ID 1)
+	}
+
+	return uint(lang.ID)
+}
+
+// SendEmail sends an email to the specified recipient
+func (s *EmailService) SendEmail(to, subject, body string) error {
+	if !s.config.Enabled {
+		return fmt.Errorf("email service is disabled")
+	}
+
+	// Set up authentication
+	auth := smtp.PlainAuth("", s.config.SMTPUser, s.config.SMTPPassword, s.config.SMTPHost)
+
+	// Create email headers
+	headers := make(map[string]string)
+	headers["From"] = fmt.Sprintf("%s <%s>", s.config.FromName, s.config.FromEmail)
+	headers["To"] = to
+	headers["Subject"] = subject
+	headers["MIME-Version"] = "1.0"
+	headers["Content-Type"] = "text/html; charset=utf-8"
+
+	// Build email message
+	var msg strings.Builder
+	for k, v := range headers {
+		msg.WriteString(fmt.Sprintf("%s: %s\r\n", k, v))
+	}
+	msg.WriteString("\r\n")
+	msg.WriteString(body)
+
+	// Send email
+	addr := fmt.Sprintf("%s:%d", s.config.SMTPHost, s.config.SMTPPort)
+	if err := smtp.SendMail(addr, auth, s.config.FromEmail, []string{to}, []byte(msg.String())); err != nil {
+		return fmt.Errorf("failed to send email: %w", err)
+	}
+
+	return nil
+}
+
+// SendVerificationEmail sends an email verification email
+func (s *EmailService) SendVerificationEmail(to, token, baseURL, lang string) error {
+	// Use default language if not provided
+	if lang == "" {
+		lang = "en"
+	}
+	verificationURL := fmt.Sprintf("%s/%s/verify-email?token=%s", baseURL, lang, token)
+
+	langID := getLangID(lang)
+	subject := i18n.T___(langID, "email.email_verification_subject")
+	body := s.verificationEmailTemplate(to, verificationURL, langID)
+
+	return s.SendEmail(to, subject, body)
+}
+
+// SendPasswordResetEmail sends a password reset email
+func (s *EmailService) SendPasswordResetEmail(to, token, baseURL, lang string) error {
+	// Use default language if not provided
+	if lang == "" {
+		lang = "en"
+	}
+	resetURL := fmt.Sprintf("%s/%s/reset-password?token=%s", baseURL, lang, token)
+
+	langID := getLangID(lang)
+	subject := i18n.T___(langID, "email.email_password_reset_subject")
+	body := s.passwordResetEmailTemplate(to, resetURL, langID)
+
+	return s.SendEmail(to, subject, body)
+}
+
+// SendNewUserAdminNotification sends an email to admin when a new user completes registration
+func (s *EmailService) SendNewUserAdminNotification(userEmail, userName, baseURL string) error {
+	if s.config.AdminEmail == "" {
+		return nil // No admin email configured
+	}
+
+	subject := "New User Registration - Repository Assignment Required"
+	body := s.newUserAdminNotificationTemplate(userEmail, userName, baseURL)
+
+	return s.SendEmail(s.config.AdminEmail, subject, body)
+}
+
+// verificationEmailTemplate returns the HTML template for email verification
+func (s *EmailService) verificationEmailTemplate(name, verificationURL string, langID uint) string {
+	buf := bytes.Buffer{}
+	emails.EmailVerificationWrapper(view.EmailLayout[view.EmailVerificationData]{LangID: langID, Data: view.EmailVerificationData{VerificationURL: verificationURL}}).Render(context.Background(), &buf)
+	return buf.String()
+}
+
+// passwordResetEmailTemplate returns the HTML template for password reset
+func (s *EmailService) passwordResetEmailTemplate(name, resetURL string, langID uint) string {
+	buf := bytes.Buffer{}
+	emails.EmailPasswordResetWrapper(view.EmailLayout[view.EmailPasswordResetData]{LangID: langID, Data: view.EmailPasswordResetData{ResetURL: resetURL}}).Render(context.Background(), &buf)
+	return buf.String()
+}
+
+// newUserAdminNotificationTemplate returns the HTML template for admin notification
+func (s *EmailService) newUserAdminNotificationTemplate(userEmail, userName, baseURL string) string {
+	buf := bytes.Buffer{}
+	emails.EmailAdminNotificationWrapper(view.EmailLayout[view.EmailAdminNotificationData]{LangID: 2, Data: view.EmailAdminNotificationData{UserEmail: userEmail, UserName: userName, BaseURL: baseURL}}).Render(context.Background(), &buf)
+	return buf.String()
+}