| """Date parsing helpers.""" |
|
|
| from __future__ import annotations |
|
|
| from datetime import datetime |
| from typing import Any |
|
|
| _DATE_FORMATS = ("%Y-%m-%d", "%d/%m/%Y", "%d.%m.%Y") |
|
|
|
|
| def parse_date(value: Any) -> datetime | None: |
| """Parse common ISO / EU date strings.""" |
| if not value or not isinstance(value, str): |
| return None |
| raw = value.strip()[:10] |
| for fmt in _DATE_FORMATS: |
| try: |
| return datetime.strptime(raw, fmt) |
| except ValueError: |
| continue |
| return None |
|
|
|
|
| def to_iso_date(value: str | None) -> str | None: |
| """Normalize a date string to YYYY-MM-DD when possible.""" |
| if not value: |
| return None |
| parsed = parse_date(value) |
| if parsed is None: |
| return value.strip() |
| return parsed.strftime("%Y-%m-%d") |
|
|
