backend/internal/handlers/auth_handlers.go

@@ -67,6 +67,7 @@ func (h *AuthHandlers) LoginGithub(c *gin.Context) {
 // @Failure 500 {object} map[string]string "Exchange failed"
 // @Router /callback/github [get]
 func (h *AuthHandlers) CallbackGithub(c *gin.Context) {
+	var id int
 	h.logger.Info("CallbackGithub called")
 
 	code := c.Query("code")
@@ -84,6 +85,7 @@ func (h *AuthHandlers) CallbackGithub(c *gin.Context) {
 		c.JSON(500, gin.H{"error": "exchange failed", "details": err.Error()})
 		return
 	}
+
 	client := h.config.Client(c.Request.Context(), token)
 	resp, err := client.Get("https://api.github.com/user")
 	if err != nil {
@@ -91,6 +93,7 @@ func (h *AuthHandlers) CallbackGithub(c *gin.Context) {
 		c.JSON(500, gin.H{"error": "get request failed to github", "details": err.Error()})
 		return
 	}
+
 	var ghUser storage.UserReg
 	err = json.NewDecoder(resp.Body).Decode(&ghUser)
 	if err != nil {
@@ -98,20 +101,41 @@ func (h *AuthHandlers) CallbackGithub(c *gin.Context) {
 		c.JSON(500, gin.H{"error": "decode failed", "details": err.Error()})
 		return
 	}
+
 	isreg, err := h.repo.IsRegistered(c.Request.Context(), ghUser.GithubID)
 	if err != nil {
+		h.logger.Error("Database check failed: " + err.Error())
 		c.JSON(500, gin.H{"error": "database error", "details": err.Error()})
 		return
 	}
-	if isreg {
-		c.JSON(200, gin.H{"user": ghUser})
-
-		reg := h.repo.Register(c.Request.Context(), ghUser)
-		if reg = nil {
-			c.JSON(500, gin.H{"error": "database error", "details": reg.Error()})
-			}
 
+	if !isreg {
+		h.logger.Info("New user, registering: " + ghUser.GithubLogin)
+		id, err = h.repo.Register(c.Request.Context(), ghUser)
+		if err != nil {
+			h.logger.Error("Registration failed: " + err.Error())
+			c.JSON(500, gin.H{"error": "registration failed", "details": err.Error()})
+			return
 		}
 	}
+	user := storage.User{
+		ID:          id,
+		GithubID:    ghUser.GithubID,
+		GithubLogin: ghUser.GithubLogin,
+		Email:       ghUser.Email,
+		AvatarURL:   ghUser.AvatarURL,
+	}
+	jwtToken, err := auth.GenerateJWT(user)
+	if err != nil {
+		h.logger.Error("JWT generation failed: " + err.Error())
+		c.JSON(500, gin.H{"error": "token generation failed", "details": err.Error()})
+		return
+	}
 
+	h.logger.Info("Authentication successful for user: " + ghUser.GithubLogin)
+
+	c.JSON(200, gin.H{
+		"token": jwtToken,
+		"user":  ghUser,
+	})
 }

backend/internal/repositories/auth_repository.go

@@ -30,7 +30,11 @@ func (a *authRepository) Register(ctx context.Context, user storage.UserReg) (in
 		return 0, err
 	}
 	row := a.db.QueryRow("SELECT id FROM users WHERE github_id = ?", user.GithubID)
-	row.Scan(&id)
+	err = row.Scan(&id)
+	if err != nil {
+		a.logger.Error("error scan: " + err.Error())
+		return 0, err
+	}
 
 	a.logger.Info("User registered:", "email", user.Email)
 	return id, nil