heroweb/lib/tools/datetime.py
2024-09-01 20:00:13 +02:00

56 lines
2.1 KiB
Python

from datetime import datetime, timezone, timedelta
import re
def epoch_get(deadline: str) -> int:
"""
Set the deadline based on various input formats.
Supports:
- Relative: +1h (hours), +2d (days), +1w (week), +1m (month)
- Absolute: 20/10/2024, 20/10, 20/10/24 (all same day)
If hour not specified, defaults to midday (noon).
Returns the deadline as a Unix timestamp (epoch).
"""
now = datetime.now(timezone.utc)
# Check for relative time format
relative_match = re.match(r'\+(\d+)([hdwm])', deadline)
if relative_match:
amount, unit = relative_match.groups()
amount = int(amount)
if unit == 'h':
delta = timedelta(hours=amount)
elif unit == 'd':
delta = timedelta(days=amount)
elif unit == 'w':
delta = timedelta(weeks=amount)
elif unit == 'm':
delta = timedelta(days=amount * 30) # Approximate
new_deadline = now + delta
return int(new_deadline.timestamp())
# Check for absolute date format
date_formats = ['%d/%m/%Y', '%d/%m/%y', '%d/%m']
for fmt in date_formats:
try:
date_obj = datetime.strptime(deadline, fmt)
if fmt == '%d/%m':
# If year is not provided, use the current year
date_obj = date_obj.replace(year=now.year)
# If the resulting date is in the past, assume next year
if date_obj.replace(tzinfo=timezone.utc) < now:
date_obj = date_obj.replace(year=date_obj.year + 1)
# Set time to noon (12:00)
date_obj = date_obj.replace(hour=12, minute=0, second=0, microsecond=0, tzinfo=timezone.utc)
return int(date_obj.timestamp())
except ValueError:
continue
raise ValueError("Invalid deadline format. Use +Xh/d/w/m for relative or DD/MM/YYYY for absolute dates.")