BE: chore datetime_utils

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

server/helper.py

@@ -7,7 +7,6 @@ import os
 import re
 import unicodedata
 import subprocess
-from typing import Union
 import pytz
 from pytz import timezone
 import json
@@ -29,144 +28,6 @@ from logger import mylog, logResult
 # Register NetAlertX directories
 INSTALL_PATH="/app"
 
-#-------------------------------------------------------------------------------
-# DateTime
-#-------------------------------------------------------------------------------
-def timeNowTZ():
-    if conf.tz:
-        return datetime.datetime.now(conf.tz).replace(microsecond=0)
-    else:
-        return datetime.datetime.now().replace(microsecond=0)
-
-def timeNow():
-    return datetime.datetime.now().replace(microsecond=0)
-
-def get_timezone_offset():    
-    now = datetime.datetime.now(conf.tz)
-    offset_hours = now.utcoffset().total_seconds() / 3600        
-    offset_formatted =  "{:+03d}:{:02d}".format(int(offset_hours), int((offset_hours % 1) * 60))
-    return offset_formatted
-
-def timeNowDB(local=True):
-    """
-    Return the current time (local or UTC) as ISO 8601 for DB storage.
-    Safe for SQLite, PostgreSQL, etc.
-
-    Example local: '2025-11-04 18:09:11'
-    Example UTC:   '2025-11-04 07:09:11'
-    """
-    if local:
-        try:
-            if isinstance(conf.tz, datetime.tzinfo):
-                tz = conf.tz
-            elif conf.tz:
-                tz = ZoneInfo(conf.tz)
-            else:
-                tz = None
-        except Exception:
-            tz = None
-        return datetime.datetime.now(tz).strftime('%Y-%m-%d %H:%M:%S')
-    else:
-        return datetime.datetime.now(datetime.UTC).strftime('%Y-%m-%d %H:%M:%S')
-
-
-#-------------------------------------------------------------------------------
-#  Date and time methods
-#-------------------------------------------------------------------------------
-
-# -------------------------------------------------------------------------------------------
-def format_date_iso(date1: str) -> str:
-    """Return ISO 8601 string for a date or None if empty"""
-    if date1 is None:
-        return None
-    dt = datetime.datetime.fromisoformat(date1) if isinstance(date1, str) else date1
-    return dt.isoformat()
-
-# -------------------------------------------------------------------------------------------
-def format_event_date(date_str: str, event_type: str) -> str:
-    """Format event date with fallback rules."""
-    if date_str:
-        return format_date(date_str)
-    elif event_type == "<missing event>":
-        return "<missing event>"
-    else:
-        return "<still connected>"
-
-# -------------------------------------------------------------------------------------------
-def ensure_datetime(dt: Union[str, datetime.datetime, None]) -> datetime.datetime:
-    if dt is None:
-        return timeNowTZ()
-    if isinstance(dt, str):
-        return datetime.datetime.fromisoformat(dt)
-    return dt
-
-
-def parse_datetime(dt_str):
-    if not dt_str:
-        return None
-    try:
-        # Try ISO8601 first
-        return datetime.datetime.fromisoformat(dt_str)
-    except ValueError:
-        # Try RFC1123 / HTTP format
-        try:
-            return datetime.datetime.strptime(dt_str, '%a, %d %b %Y %H:%M:%S GMT')
-        except ValueError:
-            return None
-
-def format_date(date_str: str) -> str:
-    try:
-        dt = parse_datetime(date_str)
-        if dt.tzinfo is None:
-            # Set timezone if missing — change to timezone.utc if you prefer UTC
-            now = datetime.datetime.now(conf.tz)
-            dt = dt.replace(tzinfo=now.astimezone().tzinfo)
-        return dt.astimezone().isoformat()
-    except Exception:
-        return "invalid"
-
-def format_date_diff(date1, date2):
-    """
-    Return difference between two datetimes as 'Xd   HH:MM'.
-    Uses app timezone if datetime is naive.
-    date2 can be None (uses now).
-    """
-    # Get timezone from settings
-    tz_name = get_setting_value("TIMEZONE") or "UTC"
-    tz = pytz.timezone(tz_name)
-
-    def parse_dt(dt):
-        if dt is None:
-            return datetime.datetime.now(tz)
-        if isinstance(dt, str):
-            try:
-                dt_parsed = email.utils.parsedate_to_datetime(dt)
-            except Exception:
-                # fallback: parse ISO string
-                dt_parsed = datetime.datetime.fromisoformat(dt)
-            # convert naive GMT/UTC to app timezone
-            if dt_parsed.tzinfo is None:
-                dt_parsed = tz.localize(dt_parsed)
-            else:
-                dt_parsed = dt_parsed.astimezone(tz)
-            return dt_parsed
-        return dt if dt.tzinfo else tz.localize(dt)
-
-    dt1 = parse_dt(date1)
-    dt2 = parse_dt(date2)
-
-    delta = dt2 - dt1
-    total_minutes = int(delta.total_seconds() // 60)
-    days, rem_minutes = divmod(total_minutes, 1440)  # 1440 mins in a day
-    hours, minutes = divmod(rem_minutes, 60)
-
-    return {
-        "text": f"{days}d {hours:02}:{minutes:02}",
-        "days": days,
-        "hours": hours,
-        "minutes": minutes,
-        "total_minutes": total_minutes
-    }
 
 #-------------------------------------------------------------------------------
 # File system permission handling