🔶 fix passed time converter function

server/app/serializer.py

@@ -1,7 +1,57 @@
 from dataclasses import dataclass
+from datetime import datetime
 from app import models
 
 
+def date_string_to_time_passed(dstring: str) -> str:
+    """
+    Converts a date string to time passed. eg. 2 minutes ago, 1 hour ago, yesterday, 2 days ago, 2 weeks ago, etc.
+    """
+
+    now = datetime.now()
+    then = datetime.strptime(dstring, "%Y-%m-%d %H:%M:%S")
+
+    diff = now - then
+    days = diff.days
+
+    if days < 0:
+        return "in the future"
+
+    elif days == 0:
+        seconds = diff.seconds
+        if seconds < 15:
+            return "now"
+        elif seconds < 60:
+            return str(seconds) + " seconds ago"
+        elif seconds < 3600:
+            return str(seconds // 60) + " minutes ago"
+        else:
+            return str(seconds // 3600) + " hours ago"
+
+    elif days == 1:
+        return "yesterday"
+    elif days < 7:
+        if days == 1:
+            return "1 day ago"
+
+        return str(days) + " days ago"
+    elif days < 30:
+        if days == 7:
+            return "1 week ago"
+
+        return str(days // 7) + " weeks ago"
+    elif days < 365:
+        if days == 30:
+            return "1 month ago"
+
+        return str(days // 30) + " months ago"
+    elif days > 365:
+        if days == 365:
+            return "1 year ago"
+
+        return str(days // 365) + " years ago"
+
+
 @dataclass
 class Playlist:
     playlistid: str
@@ -11,10 +61,16 @@ class Playlist:
     description: str
     count: int = 0
 
-    def __init__(self, p: models.Playlist) -> None:
+    def __init__(self, p: models.Playlist, construct_last_updated: bool = True) -> None:
         self.playlistid = p.playlistid
         self.name = p.name
         self.image = p.image
         self.lastUpdated = p.lastUpdated
         self.description = p.description
         self.count = p.count
+
+        if construct_last_updated:
+            self.lastUpdated = self.l_updated(p.lastUpdated)
+
+    def l_updated(self, date: str) -> str:
+        return date_string_to_time_passed(date)