use helper function

index_for_search.py

@@ -3,6 +3,7 @@ import json
 import sqlite3
 from datetime import datetime
 import re
+import helperfunctions as hf
 
 SEARCH_DB_NAME = 'search.db'
 ACCESS_LOG_DB_NAME = 'access_log.db'
@@ -70,51 +71,6 @@ def get_hit_count(relative_path):
     return row["hit_count"] if row else 0
 
 
-def extract_date_from_string(string_with_date):
-    # grab X.Y.Z where X,Y,Z are 1–4 digits
-    m = re.search(r'(\d{1,4}\.\d{1,2}\.\d{1,4})', string_with_date)
-    if not m:
-        return None
-
-    date_str = m.group(1)
-    parts = date_str.split('.')
-    
-    # 1) Unambiguous “last group = YYYY”
-    if len(parts) == 3 and len(parts[2]) == 4:
-        fmt = '%d.%m.%Y'
-
-    # 2) Unambiguous “first group = YYYY”
-    elif len(parts) == 3 and len(parts[0]) == 4:
-        fmt = '%Y.%m.%d'
-
-    # 3) Ambiguous “XX.XX.XX” → prefer DD.MM.YY, fallback to YY.MM.DD
-    elif len(parts) == 3 and all(len(p) == 2 for p in parts):
-        # try last-group-as-year first
-        try:
-            dt = datetime.strptime(date_str, '%d.%m.%y')
-            return dt.strftime('%Y-%m-%d')
-        except ValueError:
-            # fallback to first-group-as-year
-            fmt = '%y.%m.%d'
-
-    else:
-        # optional: handle ISO with dashes
-        if '-' in date_str:
-            try:
-                dt = datetime.strptime(date_str, '%Y-%m-%d')
-                return dt.strftime('%Y-%m-%d')
-            except ValueError:
-                return None
-        return None
-
-    # parse with whichever fmt we settled on
-    try:
-        dt = datetime.strptime(date_str, fmt)
-        return dt.strftime('%Y-%m-%d')
-    except ValueError:
-        return None
-
-
 def updatefileindex():
     cursor = search_db.cursor()
 
@@ -215,7 +171,7 @@ def updatefileindex():
                     titel = None
                     name = None
                     
-                performance_date = extract_date_from_string(relative_path)
+                performance_date = hf.extract_date_from_string(relative_path)
 
                 scanned_files.append((relative_path, foldername, entry.name, filetype, category, titel, name, performance_date, site, transcript, hit_count))
                 current_keys.add((relative_path, entry.name))