Docs Add Category to Coveo search engine (#26932)

### Details:
 - *item1*
 - *...*

### Tickets:
 - *ticket-id*

Author: akopytko

docs/openvino_custom_sphinx_sitemap/openvino_custom_sphinx_sitemap/__init__.py

@@ -39,7 +39,8 @@ def create_sitemap(app, exception):
     urlset = app.builder.config.ov_sitemap_urlset
     meta = app.builder.config.ov_sitemap_meta
 
-    site_url = app.builder.config.site_url or app.builder.config.html_baseurl
+    site_url = app.builder.config.site_url
+
     if site_url:
         site_url.rstrip("/") + "/"
     else:
@@ -71,29 +72,28 @@ def create_sitemap(app, exception):
     else:
         version = ""
 
+    url = ET.SubElement(root, "url")
+    scheme = app.config.sitemap_url_scheme
+    unique_links = set()
     while True:
         try:
             link = app.env.app.sitemap_links.get_nowait()  # type: ignore
+            if link in unique_links:
+                continue
+            unique_links.add(link)
         except queue.Empty:
             break
 
-        url = ET.SubElement(root, "url")
-        scheme = app.config.sitemap_url_scheme
         if app.builder.config.language:
             lang = app.builder.config.language + "/"
         else:
             lang = ""
-
+                
         ET.SubElement(url, "loc").text = site_url + scheme.format(
             lang=lang, version=version, link=link
         )
 
-        if meta:
-            for entry in meta:
-                namespace, values = entry
-                namespace_element = ET.SubElement(url, namespace)
-                for tag_name, tag_value in values.items():
-                    ET.SubElement(namespace_element, tag_name).text = tag_value
+        process_coveo_meta(meta, url, link)
 
         for lang in locales:
             lang = lang + "/"
@@ -111,4 +111,23 @@ def create_sitemap(app, exception):
                                encoding='utf-8',
                                method="xml")
     print("%s was generated for URL %s in %s" % (app.config.sitemap_filename,
-          site_url, filename))
+          site_url, filename))
+
+def process_coveo_meta(meta, url, link):
+    if not meta:
+        return
+
+    for namespace, values in meta:
+        namespace_element = ET.SubElement(url, namespace)
+
+        for tag_name, tag_value in values.items():
+            if tag_name == 'ovcategory':
+                processed_link = process_link(link)
+                ET.SubElement(namespace_element, tag_name).text = processed_link
+            else:
+                ET.SubElement(namespace_element, tag_name).text = tag_value
+
+def process_link(link):
+    if '/' in link:
+        return link.split('/')[0]
+    return link.split('.html')[0]

docs/sphinx_setup/conf.py

@@ -55,7 +55,7 @@
     '.md': 'markdown',
 }
 
-html_baseurl = 'https://docs.openvino.ai/canonical/'
+# html_baseurl = 'https://docs.openvino.ai/canonical/'
 
 # -- Sitemap configuration ---------------------------------------------------
 
@@ -72,10 +72,10 @@
 ov_sitemap_meta = [
     ('coveo:metadata', {
         'ovversion': version_name,
+        'ovcategory': 'null'
     })
 ]
 
-
 # ----------------------------------------------------
 
 html_favicon = '_static/favicon.ico'