Complete tasks 4.1-4.2: Page management service and HTTP endpoints
- Implemented PageService with full CRUD operations - Added GetPages, CreatePage, UpdatePage, DeletePage, ReorderPages methods - Cascade deletion of widgets when page is deleted - Prevention of last page deletion - Created page HTTP endpoints (GET, POST, PUT, DELETE, reorder) - HTMX-friendly HTML fragment responses - Comprehensive unit tests for service and handlers - Updated dashboard to use PageService and create default pages
This commit is contained in:
275
internal/handlers/page_handler.go
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275
internal/handlers/page_handler.go
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package handlers
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import (
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"encoding/json"
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"html/template"
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"log"
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"net/http"
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"path/filepath"
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"custom-start-page/internal/middleware"
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"custom-start-page/internal/services"
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)
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// PageHandler handles page-related HTTP requests
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type PageHandler struct {
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pageService services.PageServiceInterface
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templates *template.Template
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}
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// NewPageHandler creates a new page handler
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func NewPageHandler(pageService services.PageServiceInterface) *PageHandler {
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// Parse templates
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templates := template.Must(template.ParseGlob(filepath.Join("templates", "*.html")))
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template.Must(templates.ParseGlob(filepath.Join("templates", "layouts", "*.html")))
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template.Must(templates.ParseGlob(filepath.Join("templates", "partials", "*.html")))
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return &PageHandler{
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pageService: pageService,
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templates: templates,
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}
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}
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// HandleGetPage returns the widget grid HTML fragment for a specific page
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// GET /pages/:id
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func (h *PageHandler) HandleGetPage(w http.ResponseWriter, r *http.Request) {
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// Get user ID from context
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userID, ok := middleware.GetUserIDFromContext(r.Context())
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if !ok {
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http.Error(w, "User ID not found in context", http.StatusInternalServerError)
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return
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}
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// Get page ID from URL path
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pageID := r.PathValue("id")
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if pageID == "" {
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http.Error(w, "Page ID is required", http.StatusBadRequest)
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return
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}
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// TODO: Fetch widgets for this page
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// For now, return empty widget grid
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data := map[string]interface{}{
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"PageID": pageID,
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"UserID": userID,
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"Widgets": []interface{}{},
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}
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if err := h.templates.ExecuteTemplate(w, "widget-grid.html", data); err != nil {
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log.Printf("Failed to render widget grid template: %v", err)
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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}
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// HandleCreatePage creates a new page and returns updated page tabs HTML
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// POST /pages
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func (h *PageHandler) HandleCreatePage(w http.ResponseWriter, r *http.Request) {
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// Get user ID from context
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userID, ok := middleware.GetUserIDFromContext(r.Context())
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if !ok {
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http.Error(w, "User ID not found in context", http.StatusInternalServerError)
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return
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}
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// Parse form data
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if err := r.ParseForm(); err != nil {
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http.Error(w, "Failed to parse form data", http.StatusBadRequest)
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return
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}
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pageName := r.FormValue("name")
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if pageName == "" {
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http.Error(w, "Page name is required", http.StatusBadRequest)
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return
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}
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// Validate page name length
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if len(pageName) < 1 || len(pageName) > 50 {
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http.Error(w, "Page name must be between 1 and 50 characters", http.StatusBadRequest)
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return
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}
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// Create the page
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_, err := h.pageService.CreatePage(r.Context(), userID, pageName)
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if err != nil {
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log.Printf("Failed to create page: %v", err)
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http.Error(w, "Failed to create page", http.StatusInternalServerError)
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return
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}
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// Get all pages to render updated tabs
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pages, err := h.pageService.GetPages(r.Context(), userID)
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if err != nil {
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log.Printf("Failed to get pages: %v", err)
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http.Error(w, "Failed to get pages", http.StatusInternalServerError)
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return
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}
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// Render page tabs partial
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data := map[string]interface{}{
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"Pages": pages,
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}
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if err := h.templates.ExecuteTemplate(w, "page-tabs.html", data); err != nil {
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log.Printf("Failed to render page tabs template: %v", err)
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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}
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// HandleUpdatePage updates a page and returns updated page tab HTML
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// PUT /pages/:id
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func (h *PageHandler) HandleUpdatePage(w http.ResponseWriter, r *http.Request) {
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// Get user ID from context
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userID, ok := middleware.GetUserIDFromContext(r.Context())
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if !ok {
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http.Error(w, "User ID not found in context", http.StatusInternalServerError)
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return
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}
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// Get page ID from URL path
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pageID := r.PathValue("id")
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if pageID == "" {
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http.Error(w, "Page ID is required", http.StatusBadRequest)
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return
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}
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// Parse form data
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if err := r.ParseForm(); err != nil {
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http.Error(w, "Failed to parse form data", http.StatusBadRequest)
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return
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}
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pageName := r.FormValue("name")
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if pageName == "" {
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http.Error(w, "Page name is required", http.StatusBadRequest)
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return
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}
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// Validate page name length
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if len(pageName) < 1 || len(pageName) > 50 {
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http.Error(w, "Page name must be between 1 and 50 characters", http.StatusBadRequest)
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return
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}
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// Update the page
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page, err := h.pageService.UpdatePage(r.Context(), userID, pageID, pageName)
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if err != nil {
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log.Printf("Failed to update page: %v", err)
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http.Error(w, "Failed to update page", http.StatusInternalServerError)
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return
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}
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// Render single page tab partial
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data := map[string]interface{}{
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"Page": page,
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}
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if err := h.templates.ExecuteTemplate(w, "page-tab.html", data); err != nil {
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log.Printf("Failed to render page tab template: %v", err)
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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}
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// HandleDeletePage deletes a page and returns updated page tabs HTML
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// DELETE /pages/:id
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func (h *PageHandler) HandleDeletePage(w http.ResponseWriter, r *http.Request) {
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// Get user ID from context
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userID, ok := middleware.GetUserIDFromContext(r.Context())
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if !ok {
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http.Error(w, "User ID not found in context", http.StatusInternalServerError)
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return
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}
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// Get page ID from URL path
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pageID := r.PathValue("id")
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if pageID == "" {
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http.Error(w, "Page ID is required", http.StatusBadRequest)
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return
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}
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// Delete the page
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err := h.pageService.DeletePage(r.Context(), userID, pageID)
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if err != nil {
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if err.Error() == "cannot delete the last page" {
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http.Error(w, "Cannot delete the last page. You must have at least one page.", http.StatusBadRequest)
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return
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}
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log.Printf("Failed to delete page: %v", err)
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http.Error(w, "Failed to delete page", http.StatusInternalServerError)
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return
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}
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// Get all pages to render updated tabs
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pages, err := h.pageService.GetPages(r.Context(), userID)
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if err != nil {
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log.Printf("Failed to get pages: %v", err)
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http.Error(w, "Failed to get pages", http.StatusInternalServerError)
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return
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}
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// Render page tabs partial
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data := map[string]interface{}{
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"Pages": pages,
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}
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if err := h.templates.ExecuteTemplate(w, "page-tabs.html", data); err != nil {
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log.Printf("Failed to render page tabs template: %v", err)
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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}
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// HandleReorderPages reorders pages and returns updated page tabs HTML
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// POST /pages/reorder
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func (h *PageHandler) HandleReorderPages(w http.ResponseWriter, r *http.Request) {
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// Get user ID from context
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userID, ok := middleware.GetUserIDFromContext(r.Context())
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if !ok {
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http.Error(w, "User ID not found in context", http.StatusInternalServerError)
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return
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}
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// Parse form data
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if err := r.ParseForm(); err != nil {
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http.Error(w, "Failed to parse form data", http.StatusBadRequest)
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return
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}
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// Get page order from form
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orderJSON := r.FormValue("order")
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if orderJSON == "" {
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http.Error(w, "Page order is required", http.StatusBadRequest)
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return
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}
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var pageOrder []string
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if err := json.Unmarshal([]byte(orderJSON), &pageOrder); err != nil {
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http.Error(w, "Invalid page order format", http.StatusBadRequest)
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return
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}
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// Reorder pages
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err := h.pageService.ReorderPages(r.Context(), userID, pageOrder)
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if err != nil {
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log.Printf("Failed to reorder pages: %v", err)
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http.Error(w, "Failed to reorder pages", http.StatusInternalServerError)
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return
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}
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// Get all pages to render updated tabs
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pages, err := h.pageService.GetPages(r.Context(), userID)
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if err != nil {
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log.Printf("Failed to get pages: %v", err)
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http.Error(w, "Failed to get pages", http.StatusInternalServerError)
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return
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}
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// Render page tabs partial
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data := map[string]interface{}{
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"Pages": pages,
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}
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if err := h.templates.ExecuteTemplate(w, "page-tabs.html", data); err != nil {
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log.Printf("Failed to render page tabs template: %v", err)
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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}
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