Add theme to user preferences

server/internal/handlers/admin_handlers.go

@@ -22,6 +22,7 @@ type CreateUserRequest struct {
 	DisplayName string          `json:"displayName"`
 	Password    string          `json:"password"`
 	Role        models.UserRole `json:"role"`
+	Theme       string          `json:"theme,omitempty"`
 }
 
 // UpdateUserRequest holds the request fields for updating a user
@@ -30,6 +31,7 @@ type UpdateUserRequest struct {
 	DisplayName string          `json:"displayName,omitempty"`
 	Password    string          `json:"password,omitempty"`
 	Role        models.UserRole `json:"role,omitempty"`
+	Theme       string          `json:"theme,omitempty"`
 }
 
 // WorkspaceStats holds workspace statistics
@@ -164,11 +166,24 @@ func (h *Handler) AdminCreateUser() http.HandlerFunc {
 			return
 		}
 
+		// Handle theme with validation and default
+		theme := req.Theme
+		if theme == "" {
+			theme = "dark" // Default theme
+		} else if theme != "light" && theme != "dark" {
+			// Invalid theme, fallback to dark
+			log.Debug("invalid theme value in user creation, falling back to dark",
+				"theme", theme,
+			)
+			theme = "dark"
+		}
+
 		user := &models.User{
 			Email:        req.Email,
 			DisplayName:  req.DisplayName,
 			PasswordHash: string(hashedPassword),
 			Role:         req.Role,
+			Theme:        theme,
 		}
 
 		insertedUser, err := h.DB.CreateUser(user)
@@ -196,6 +211,7 @@ func (h *Handler) AdminCreateUser() http.HandlerFunc {
 			"newUserID", insertedUser.ID,
 			"email", insertedUser.Email,
 			"role", insertedUser.Role,
+			"theme", insertedUser.Theme,
 		)
 		respondJSON(w, insertedUser)
 	}
@@ -322,6 +338,17 @@ func (h *Handler) AdminUpdateUser() http.HandlerFunc {
 			user.Role = req.Role
 			updates["role"] = req.Role
 		}
+		if req.Theme != "" {
+			// Validate theme value, fallback to "dark" if invalid
+			if req.Theme != "light" && req.Theme != "dark" {
+				log.Debug("invalid theme value, falling back to dark",
+					"theme", req.Theme,
+				)
+				req.Theme = "dark"
+			}
+			user.Theme = req.Theme
+			updates["theme"] = req.Theme
+		}
 		if req.Password != "" {
 			hashedPassword, err := bcrypt.GenerateFromPassword([]byte(req.Password), bcrypt.DefaultCost)
 			if err != nil {

server/internal/handlers/user_handlers.go

@@ -16,6 +16,7 @@ type UpdateProfileRequest struct {
 	Email           string `json:"email"`
 	CurrentPassword string `json:"currentPassword"`
 	NewPassword     string `json:"newPassword"`
+	Theme           string `json:"theme"`
 }
 
 // DeleteAccountRequest represents a user account deletion request
@@ -149,6 +150,19 @@ func (h *Handler) UpdateProfile() http.HandlerFunc {
 			updates["displayNameChanged"] = true
 		}
 
+		// Update theme if provided
+		if req.Theme != "" {
+			// Validate theme value, fallback to "dark" if invalid
+			if req.Theme != "light" && req.Theme != "dark" {
+				log.Debug("invalid theme value, falling back to dark",
+					"theme", req.Theme,
+				)
+				req.Theme = "dark"
+			}
+			user.Theme = req.Theme
+			updates["themeChanged"] = true
+		}
+
 		// Update user in database
 		if err := h.DB.UpdateUser(user); err != nil {
 			log.Error("failed to update user in database",

server/internal/handlers/workspace_handlers.go

@@ -87,7 +87,7 @@ func (h *Handler) CreateWorkspace() http.HandlerFunc {
 			"clientIP", r.RemoteAddr,
 		)
 
-		var workspace models.Workspace
+			var workspace models.Workspace
 		if err := json.NewDecoder(r.Body).Decode(&workspace); err != nil {
 			log.Debug("invalid request body received",
 				"error", err.Error(),
@@ -104,7 +104,21 @@ func (h *Handler) CreateWorkspace() http.HandlerFunc {
 			return
 		}
 
+		// Get user to access their theme preference
+		user, err := h.DB.GetUserByID(ctx.UserID)
+		if err != nil {
+			log.Error("failed to fetch user from database",
+				"error", err.Error(),
+			)
+			respondError(w, "Failed to get user", http.StatusInternalServerError)
+			return
+		}
+
 		workspace.UserID = ctx.UserID
+		// Use user's theme as default if not provided
+		if workspace.Theme == "" {
+			workspace.Theme = user.Theme
+		}
 		if err := h.DB.CreateWorkspace(&workspace); err != nil {
 			log.Error("failed to create workspace in database",
 				"error", err.Error(),
@@ -145,6 +159,7 @@ func (h *Handler) CreateWorkspace() http.HandlerFunc {
 		log.Info("workspace created",
 			"workspaceID", workspace.ID,
 			"workspaceName", workspace.Name,
+			"theme", workspace.Theme,
 			"gitEnabled", workspace.GitEnabled,
 		)
 		respondJSON(w, workspace)