Complete API handlers refactoring to eliminate type switching and use repository pattern consistently

internal/api/middleware.go

@@ -3,6 +3,7 @@ package api
 import (
 	"log"
 	"net/http"
+	"slices"
 	"strings"
 	"time"
 )
@@ -92,13 +93,7 @@ func CORSPreflightHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Check if origin is allowed
-	originAllowed := false
-	for _, allowed := range allowedOrigins {
-		if origin == allowed {
-			originAllowed = true
-			break
-		}
-	}
+	originAllowed := slices.Contains(allowedOrigins, origin)
 
 	if originAllowed {
 		w.Header().Set("Access-Control-Allow-Origin", origin)

internal/api/models.go

@@ -1,35 +1,7 @@
 package api
 
-import "time"
-
-// API request/response models
-type ContentItem struct {
-	ID               string    `json:"id"`
-	SiteID           string    `json:"site_id"`
-	HTMLContent      string    `json:"html_content"`
-	OriginalTemplate string    `json:"original_template"`
-	CreatedAt        time.Time `json:"created_at"`
-	UpdatedAt        time.Time `json:"updated_at"`
-	LastEditedBy     string    `json:"last_edited_by"`
-}
-
-type ContentVersion struct {
-	VersionID        int64     `json:"version_id"`
-	ContentID        string    `json:"content_id"`
-	SiteID           string    `json:"site_id"`
-	HTMLContent      string    `json:"html_content"`
-	OriginalTemplate string    `json:"original_template"`
-	CreatedAt        time.Time `json:"created_at"`
-	CreatedBy        string    `json:"created_by"`
-}
-
-type ContentResponse struct {
-	Content []ContentItem `json:"content"`
-}
-
-type ContentVersionsResponse struct {
-	Versions []ContentVersion `json:"versions"`
-}
+// Use db package types directly for API responses - no duplication needed
+// Request models are kept below as they're different (input DTOs)
 
 // Element context for backend ID generation
 type ElementContext struct {
@@ -55,44 +27,7 @@ type RollbackContentRequest struct {
 	RolledBackBy string `json:"rolled_back_by,omitempty"`
 }
 
-// Collection API models
-type CollectionItem struct {
-	ID            string               `json:"id"`
-	SiteID        string               `json:"site_id"`
-	ContainerHTML string               `json:"container_html"`
-	CreatedAt     time.Time            `json:"created_at"`
-	UpdatedAt     time.Time            `json:"updated_at"`
-	LastEditedBy  string               `json:"last_edited_by"`
-	Templates     []CollectionTemplate `json:"templates,omitempty"`
-	Items         []CollectionItemData `json:"items,omitempty"`
-}
-
-type CollectionTemplate struct {
-	TemplateID   int       `json:"template_id"`
-	CollectionID string    `json:"collection_id"`
-	SiteID       string    `json:"site_id"`
-	Name         string    `json:"name"`
-	HTMLTemplate string    `json:"html_template"`
-	IsDefault    bool      `json:"is_default"`
-	CreatedAt    time.Time `json:"created_at"`
-}
-
-type CollectionItemData struct {
-	ItemID       string    `json:"item_id"`
-	CollectionID string    `json:"collection_id"`
-	SiteID       string    `json:"site_id"`
-	TemplateID   int       `json:"template_id"`
-	HTMLContent  string    `json:"html_content"`
-	Position     int       `json:"position"`
-	CreatedAt    time.Time `json:"created_at"`
-	UpdatedAt    time.Time `json:"updated_at"`
-	LastEditedBy string    `json:"last_edited_by"`
-	TemplateName string    `json:"template_name,omitempty"`
-}
-
-type CollectionResponse struct {
-	Collections []CollectionItem `json:"collections"`
-}
+// Collection response types also use db package directly
 
 // Collection request models
 type CreateCollectionRequest struct {