u

src/utils/categoryUtils.js

@@ -132,3 +132,48 @@ export function getCategoryDescendantIds(categories, categoryId) {
   }
   return result;
 }
+
+/**
+ * Normalizes a category slug path by stripping leading/trailing slashes.
+ * @param {string|null|undefined} slugPath
+ * @returns {string}
+ */
+export function cleanCategorySlugPath(slugPath) {
+  return (slugPath ?? '').replace(/^\/+|\/+$/g, '');
+}
+
+/**
+ * Resolves a numeric/string category ID from a URL slug path using the category tree.
+ * @param {object} categories - id -> node map
+ * @param {number|string|null} rootCategoryId
+ * @param {string|null|undefined} slugPath
+ * @returns {number|string|null}
+ */
+export function resolveCategoryIdFromSlugPath(categories, rootCategoryId, slugPath) {
+  if (!categories || rootCategoryId == null) return null;
+
+  let segments = (slugPath ?? '')
+    .split('/')
+    .filter(Boolean)
+    .map((segment) => decodeURIComponent(segment));
+
+  if (segments[0] === ROOT_CATEGORY_NAME) {
+    segments = segments.slice(1);
+  }
+
+  if (segments.length === 0) {
+    return rootCategoryId;
+  }
+
+  let currentId = rootCategoryId;
+  for (const slug of segments) {
+    const children = getCategoryChildren(categories, currentId);
+    const match = children.find(
+      (child) => categorySlug(child, rootCategoryId) === slug,
+    );
+    if (!match) return null;
+    currentId = match.id;
+  }
+
+  return currentId;
+}