"""
RFID reader initialization and handling
"""

import logging
from config_settings import SERIAL_DEVICES, CONFIG_CARD_ID
from logger_module import log_with_server


def initialize_rfid_reader():
    """
    Initialize RFID reader with multiple device attempts and error handling
    
    Returns:
        Reader object or None if initialization fails
    """
    try:
        from rdm6300 import Reader
    except ImportError:
        print("✗ rdm6300 module not installed")
        return None
    
    print("Initializing RFID reader...")
    
    for device in SERIAL_DEVICES:
        try:
            print(f"Attempting to initialize RFID reader on {device}...")
            r = Reader(device)
            r.start()
            print(f"✓ RFID reader successfully initialized on {device}")
            return r
            
        except FileNotFoundError:
            print(f"✗ Device {device} not found")
            continue
        except PermissionError:
            print(f"✗ Permission denied for {device}")
            print(f"  Hint: Try adding user to dialout group: sudo usermod -a -G dialout $USER")
            continue
        except Exception as e:
            print(f"✗ Failed to initialize on {device}: {e}")
            continue
    
    # If we get here, all devices failed
    print("✗ Could not initialize RFID reader on any device")
    print("Available solutions:")
    print("  1. Check hardware connections")
    print("  2. Enable UART: sudo raspi-config -> Interface Options -> Serial")
    print("  3. Add user to dialout group: sudo usermod -a -G dialout $USER")
    print("  4. Reboot the system after making changes")
    
    return None