From 63b63038d19759a3867375e94eacc6828f3a9b67 Mon Sep 17 00:00:00 2001
From: Nikolai Papin <nikolai@weirdcat.ru>
Date: Tue, 8 Jul 2025 23:21:00 +0300
Subject: [PATCH] feat: initialized smtp service; refactor: config now returns
 a copy of a struct to prevent editing; chore: corrected identation

---
 backend/cmd/main.go                    |  2 +-
 backend/config/config.go               |  6 +++---
 backend/internal/controllers/auth.go   | 14 +++++++-------
 backend/internal/errors/smtp.go        | 10 ++++++++++
 backend/internal/middleware/request.go |  8 ++++----
 backend/internal/services/smtp.go      | 19 +++++++++++++++++++
 6 files changed, 44 insertions(+), 15 deletions(-)
 create mode 100644 backend/internal/errors/smtp.go

diff --git a/backend/cmd/main.go b/backend/cmd/main.go
index 8bf69dd..e2071de 100644
--- a/backend/cmd/main.go
+++ b/backend/cmd/main.go
@@ -108,5 +108,5 @@ func main() {
 			})
 		}),
 
-  ).Run()
+	).Run()
 }
diff --git a/backend/config/config.go b/backend/config/config.go
index 56f62ba..410aeb3 100644
--- a/backend/config/config.go
+++ b/backend/config/config.go
@@ -153,16 +153,16 @@ func Load() (*Config, error) {
 	return &cfg, nil
 }
 
-func GetConfig() *Config {
+func GetConfig() Config {
 
 	if config == nil {
-		
+
 		if _, err := Load(); err != nil {
 			panic(err)
 		}
 	}
 
-	return config
+	return *config
 }
 
 var config *Config
diff --git a/backend/internal/controllers/auth.go b/backend/internal/controllers/auth.go
index 75a8927..0b3e1b1 100644
--- a/backend/internal/controllers/auth.go
+++ b/backend/internal/controllers/auth.go
@@ -146,7 +146,7 @@ func (a *authControllerImpl) RegistrationBegin(c *gin.Context) {
 // @Router /auth/registrationComplete [post]
 func (a *authControllerImpl) RegistrationComplete(c *gin.Context) {
 	request, ok := utils.GetRequest[models.RegistrationCompleteRequest](c)
-		if !ok {
+	if !ok {
 		c.Status(http.StatusBadRequest)
 		return
 	}
@@ -168,10 +168,10 @@ func (a *authControllerImpl) RegistrationComplete(c *gin.Context) {
 }
 
 func (a *authControllerImpl) RegisterRoutes(group *gin.RouterGroup) {
-    group.POST("/registrationBegin", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.RegistrationBegin)
-    group.POST("/registrationComplete", middleware.RequestMiddleware[models.RegistrationCompleteRequest](enums.GuestRole), a.RegistrationComplete)
-    group.POST("/login", middleware.RequestMiddleware[models.LoginRequest](enums.GuestRole), a.Login)
-    group.POST("/refresh", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.UserRole), a.Refresh)
-    group.POST("/passwordResetBegin", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.PasswordResetBegin)
-    group.POST("/passwordResetComplete", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.PasswordResetComplete)
+	group.POST("/registrationBegin", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.RegistrationBegin)
+	group.POST("/registrationComplete", middleware.RequestMiddleware[models.RegistrationCompleteRequest](enums.GuestRole), a.RegistrationComplete)
+	group.POST("/login", middleware.RequestMiddleware[models.LoginRequest](enums.GuestRole), a.Login)
+	group.POST("/refresh", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.UserRole), a.Refresh)
+	group.POST("/passwordResetBegin", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.PasswordResetBegin)
+	group.POST("/passwordResetComplete", middleware.RequestMiddleware[models.RegistrationBeginRequest](enums.GuestRole), a.PasswordResetComplete)
 }
diff --git a/backend/internal/errors/smtp.go b/backend/internal/errors/smtp.go
new file mode 100644
index 0000000..4b45f59
--- /dev/null
+++ b/backend/internal/errors/smtp.go
@@ -0,0 +1,10 @@
+package errors
+
+import (
+	"errors"
+)
+
+var (
+	ErrSmtpDisabled = errors.New("Smtp is not enabled in the config")
+	ErrSmtpSendFailure = errors.New("Failed to send email")
+)
diff --git a/backend/internal/middleware/request.go b/backend/internal/middleware/request.go
index 2665b20..36ef57b 100644
--- a/backend/internal/middleware/request.go
+++ b/backend/internal/middleware/request.go
@@ -46,15 +46,15 @@ func UserInfoFromContext(c *gin.Context) (*UserInfo, bool) {
 	var ok bool
 
 	username, ok = c.Get("username") ; if !ok {
-     return &UserInfo{Username: "", Role: enums.GuestRole}, true
+		return &UserInfo{Username: "", Role: enums.GuestRole}, true
 	}
 
 	role, ok = c.Get("role"); if !ok {
-     return nil, false
+		return nil, false
 	}
 
 	if username == nil {
-     return &UserInfo{Username: "", Role: enums.GuestRole}, true
+		return &UserInfo{Username: "", Role: enums.GuestRole}, true
 	}
 
 	if role == nil {
@@ -103,7 +103,7 @@ func RequestMiddleware[T any](role enums.Role) gin.HandlerFunc {
 			User: *userInfo,
 			Body: body,
 		}
-		
+
 		c.Set(requestKey, request)
 		c.Next()
 	})
diff --git a/backend/internal/services/smtp.go b/backend/internal/services/smtp.go
index f56b2f7..c477953 100644
--- a/backend/internal/services/smtp.go
+++ b/backend/internal/services/smtp.go
@@ -16,3 +16,22 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 package services
+
+import "go.uber.org/zap"
+
+type SmtpService interface {
+	SendEmail(to string, content string)
+}
+
+type smtpServiceImpl struct {
+	log *zap.Logger
+}
+
+func NewSmtpService(_log *zap.Logger) SmtpService {
+	return &smtpServiceImpl{log: _log}
+}
+
+func (s *smtpServiceImpl) SendEmail(to string, content string) {
+	panic("unimplemented")
+}
+