Add support for separating media files per chat

Whatsapp_Chat_Exporter/utility.py

@@ -3,6 +3,8 @@ import json
 import os
 from bleach import clean as sanitize
 from markupsafe import Markup
+import unicodedata
+import re
 from datetime import datetime
 from enum import IntEnum
 from Whatsapp_Chat_Exporter.data_model import ChatStore
@@ -309,6 +311,23 @@ def setup_template(template, no_avatar):
 APPLE_TIME = datetime.timestamp(datetime(2001, 1, 1))
 
 
+def slugify(value, allow_unicode=False):
+    """
+    Taken from https://github.com/django/django/blob/master/django/utils/text.py
+    Convert to ASCII if 'allow_unicode' is False. Convert spaces or repeated
+    dashes to single dashes. Remove characters that aren't alphanumerics,
+    underscores, or hyphens. Convert to lowercase. Also strip leading and
+    trailing whitespace, dashes, and underscores.
+    """
+    value = str(value)
+    if allow_unicode:
+        value = unicodedata.normalize('NFKC', value)
+    else:
+        value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore').decode('ascii')
+    value = re.sub(r'[^\w\s-]', '', value.lower())
+    return re.sub(r'[-\s]+', '-', value).strip('-_')
+
+
 class WhatsAppIdentifier(StrEnum):
     MESSAGE = "7c7fba66680ef796b916b067077cc246adacf01d"
     CONTACT = "b8548dc30aa1030df0ce18ef08b882cf7ab5212f"