Display date_added in bookmark list (#85)

* Display date_added in bookmark list (#85)

* Allow switching between different types of date formats

* Improve date formatting

* Use pluralize

* Fix comment

* Fix styles

Co-authored-by: Sascha Ißbrücker <sissbruecker@lyska.io>

bookmarks/utils.py

@@ -1,2 +1,55 @@
+from datetime import datetime
+
+from dateutil.relativedelta import relativedelta
+from django.template.defaultfilters import pluralize
+from django.utils import timezone, formats
+
+
 def unique(elements, key):
     return list({key(element): element for element in elements}.values())
+
+
+weekday_names = {
+    1: 'Monday',
+    2: 'Tuesday',
+    3: 'Wednesday',
+    4: 'Thursday',
+    5: 'Friday',
+    6: 'Saturday',
+    7: 'Sunday',
+}
+
+
+def humanize_absolute_date(value: datetime, now=timezone.now()):
+    delta = relativedelta(now, value)
+    yesterday = now - relativedelta(days=1)
+
+    is_older_than_a_week = delta.years > 0 or delta.months > 0 or delta.weeks > 0
+
+    if is_older_than_a_week:
+        return formats.date_format(value, 'SHORT_DATE_FORMAT')
+    elif value.day == now.day:
+        return 'Today'
+    elif value.day == yesterday.day:
+        return 'Yesterday'
+    else:
+        return weekday_names[value.isoweekday()]
+
+
+def humanize_relative_date(value: datetime, now: datetime = timezone.now()):
+    delta = relativedelta(now, value)
+
+    if delta.years > 0:
+        return f'{delta.years} year{pluralize(delta.years)} ago'
+    elif delta.months > 0:
+        return f'{delta.months} month{pluralize(delta.months)} ago'
+    elif delta.weeks > 0:
+        return f'{delta.weeks} week{pluralize(delta.weeks)} ago'
+    else:
+        yesterday = now - relativedelta(days=1)
+        if value.day == now.day:
+            return 'Today'
+        elif value.day == yesterday.day:
+            return 'Yesterday'
+        else:
+            return weekday_names[value.isoweekday()]