"""
User authorization
"""
from typing import Optional
from bot.config import settings
from bot.modules.database.session import AsyncSessionLocal
from bot.modules.database.models import User
import logging

logger = logging.getLogger(__name__)


async def is_authorized(user_id: int) -> bool:
    """
    Check user authorization
    
    Args:
        user_id: User ID
    
    Returns:
        True if user is authorized, False otherwise
    """
    # Check blacklist
    if user_id in settings.blocked_users_list:
        return False
    
    # Check in database
    async with AsyncSessionLocal() as session:
        user = await session.get(User, user_id)
        if user and user.is_blocked:
            return False
    
    # If private mode is enabled, check only whitelist
    if settings.PRIVATE_MODE:
        # Check in configuration
        if user_id in settings.authorized_users_list:
            return True
        
        # Check in database (users added via /adduser)
        async with AsyncSessionLocal() as session:
            user = await session.get(User, user_id)
            if user and not user.is_blocked:
                return True
        
        # In private mode, access only for authorized users
        return False
    
    # If private mode is disabled
    # Check whitelist (if configured)
    if settings.authorized_users_list:
        return user_id in settings.authorized_users_list
    
    # If whitelist is not configured, check in database
    async with AsyncSessionLocal() as session:
        user = await session.get(User, user_id)
        # If user exists in database and is not blocked - allow access
        if user and not user.is_blocked:
            return True
    
    # By default - deny access
    return False


async def is_admin(user_id: int) -> bool:
    """
    Check if user is administrator
    
    Args:
        user_id: User ID
    
    Returns:
        True if administrator, False otherwise
    """
    # Check in configuration
    if user_id in settings.admin_ids_list:
        return True
    
    # Check in database
    async with AsyncSessionLocal() as session:
        user = await session.get(User, user_id)
        if user and user.is_admin:
            return True
    
    return False


async def is_owner(user_id: int) -> bool:
    """
    Check if user is owner
    
    Args:
        user_id: User ID
    
    Returns:
        True if owner, False otherwise
    """
    return user_id == settings.OWNER_ID