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"""Helper utility functions.""" from datetime import datetime from dateutil import parser def format_date(date_str: str) -> str: """ Format date string to standard format. Args: date_str: Input date string Returns: Formatted date string (DD MMM YYYY) """ try: if date_str.lower() == "today": dt = datetime.today() else: dt = parser.parse(date_str) return dt.strftime("%d %b %Y") except Exception: return datetime.today().strftime("%d %b %Y") def validate_days(days: int) -> int: """ Validate number of days is within reasonable range. Args: days: Number of days Returns: Validated number of days (1-14) """ if days < 1: return 1 elif days > 14: return 14 return days def format_temperature(temp: float) -> str: """ Format temperature with appropriate description. Args: temp: Temperature in Celsius Returns: Formatted temperature string with description """ temp_str = f"{temp:.1f}°C" if temp < 20: desc = "Cool" elif temp < 25: desc = "Pleasant" elif temp < 30: desc = "Warm" elif temp < 35: desc = "Hot" else: desc = "Very Hot" return f"{temp_str} ({desc})"