[motherless] Fix review issues and improve extraction (closes #26495, closes #27450)

Less than a week old videos use a '20h ago' or '1d ago' format.

I kept the support for 'Ago' with uppercase start at is was already in the code.

youtube_dl/extractor/motherless.py

@@ -61,6 +61,23 @@ class MotherlessIE(InfoExtractor):
         # no keywords
         'url': 'http://motherless.com/8B4BBC1',
         'only_matching': True,
+    }, {
+        # see https://motherless.com/videos/recent for recent videos with
+        # uploaded date in "ago" format
+        'url': 'https://motherless.com/3C3E2CF',
+        'info_dict': {
+            'id': '3C3E2CF',
+            'ext': 'mp4',
+            'title': 'a/ Hot Teens',
+            'categories': list,
+            'upload_date': '20210104',
+            'uploader_id': 'yonbiw',
+            'thumbnail': r're:https?://.*\.jpg',
+            'age_limit': 18,
+        },
+        'params': {
+            'skip_download': True,
+        },
     }]
 
     def _real_extract(self, url):
@@ -85,20 +102,28 @@ class MotherlessIE(InfoExtractor):
             or 'http://cdn4.videos.motherlessmedia.com/videos/%s.mp4?fs=opencloud' % video_id)
         age_limit = self._rta_search(webpage)
         view_count = str_to_int(self._html_search_regex(
-            (r'>(\d+)\s+Views<', r'<strong>Views</strong>\s+([^<]+)<'),
+            (r'>([\d,.]+)\s+Views<', r'<strong>Views</strong>\s+([^<]+)<'),
             webpage, 'view count', fatal=False))
         like_count = str_to_int(self._html_search_regex(
-            (r'>(\d+)\s+Favorites<', r'<strong>Favorited</strong>\s+([^<]+)<'),
+            (r'>([\d,.]+)\s+Favorites<',
+             r'<strong>Favorited</strong>\s+([^<]+)<'),
             webpage, 'like count', fatal=False))
 
-        upload_date = self._html_search_regex(
+        upload_date = unified_strdate(self._search_regex(
-            (r'class=["\']count[^>]+>(\d+\s+[a-zA-Z]{3}\s+\d{4})<',
+            r'class=["\']count[^>]+>(\d+\s+[a-zA-Z]{3}\s+\d{4})<', webpage,
-             r'<strong>Uploaded</strong>\s+([^<]+)<'), webpage, 'upload date')
+            'upload date', default=None))
-        if 'Ago' in upload_date:
+        if not upload_date:
-            days = int(re.search(r'([0-9]+)', upload_date).group(1))
+            uploaded_ago = self._search_regex(
-            upload_date = (datetime.datetime.now() - datetime.timedelta(days=days)).strftime('%Y%m%d')
+                r'>\s*(\d+[hd])\s+[aA]go\b', webpage, 'uploaded ago',
-        else:
+                default=None)
-            upload_date = unified_strdate(upload_date)
+            if uploaded_ago:
+                delta = int(uploaded_ago[:-1])
+                _AGO_UNITS = {
+                    'h': 'hours',
+                    'd': 'days',
+                }
+                kwargs = {_AGO_UNITS.get(uploaded_ago[-1]): delta}
+                upload_date = (datetime.datetime.utcnow() - datetime.timedelta(**kwargs)).strftime('%Y%m%d')
 
         comment_count = webpage.count('class="media-comment-contents"')
         uploader_id = self._html_search_regex(