"""
Company: eXonware.com
Author: Eng. Muhammad AlShehri
Email: connect@exonware.com
Version: 0.0.1.360
Generation Date: September 04, 2025

Timezone utilities - Placeholder.
"""

from datetime import datetime, timezone
from typing import List, Optional, Dict, Any
import pytz


class TimezoneManager:
    """Timezone manager for handling timezone operations."""
    
    def __init__(self):
        """Initialize timezone manager."""
        self._timezones = {}
    
    def get_timezone(self, name: str) -> Optional[timezone]:
        """Get timezone by name."""
        try:
            return pytz.timezone(name)
        except pytz.UnknownTimeZoneError:
            return None
    
    def list_timezones(self) -> List[str]:
        """List all available timezones."""
        return pytz.all_timezones
    
    def get_local_timezone(self) -> timezone:
        """Get local timezone."""
        return datetime.now().astimezone().tzinfo


class TimezoneUtils:
    """Utility class for timezone operations."""
    
    @staticmethod
    def convert_timezone(dt: datetime, target_tz: str) -> datetime:
        """Convert datetime to target timezone.
        
        Args:
            dt: Source datetime
            target_tz: Target timezone name
            
        Returns:
            Converted datetime
        """
        if dt.tzinfo is None:
            dt = dt.replace(tzinfo=timezone.utc)
        
        target_timezone = pytz.timezone(target_tz)
        return dt.astimezone(target_timezone)
    
    @staticmethod
    def get_timezone_info(tz_name: str) -> Dict[str, Any]:
        """Get timezone information.
        
        Args:
            tz_name: Timezone name
            
        Returns:
            Timezone information dictionary
        """
        try:
            tz = pytz.timezone(tz_name)
            now = datetime.now(tz)
            return {
                'name': tz_name,
                'offset': now.strftime('%z'),
                'dst': now.dst().total_seconds() if now.dst() else 0,
                'zone': now.tzname()
            }
        except pytz.UnknownTimeZoneError:
            return {}
    
    @staticmethod
    def list_timezones() -> List[str]:
        """List all available timezones."""
        return pytz.all_timezones
    
    @staticmethod
    def get_local_timezone() -> str:
        """Get local timezone name."""
        return str(datetime.now().astimezone().tzinfo)
    
    @staticmethod
    def utc_now() -> datetime:
        """Get current UTC time."""
        return datetime.now(timezone.utc)
    
    @staticmethod
    def local_now() -> datetime:
        """Get current local time."""
        return datetime.now()


def convert_timezone(dt, tz):
    """Convert timezone - backward compatibility."""
    return TimezoneUtils.convert_timezone(dt, tz)
    
def get_timezone_info(tz):
    """Get timezone info - backward compatibility."""
    return TimezoneUtils.get_timezone_info(tz)
    
def list_timezones():
    """List timezones - backward compatibility."""
    return TimezoneUtils.list_timezones()
    
def get_local_timezone():
    """Get local timezone - backward compatibility."""
    return TimezoneUtils.get_local_timezone()
    
def utc_now():
    """Get UTC now - backward compatibility."""
    return TimezoneUtils.utc_now()
    
def local_now():
    """Get local now - backward compatibility."""
    return TimezoneUtils.local_now()
