import sqlite3

def main():
    conn = sqlite3.connect("hl7_forwarder.db")
    cursor = conn.cursor()
    try:
        cursor.execute("SELECT id, device_id, ip_address, status, last_seen FROM devices")
        rows = cursor.fetchall()
        print("=== Registered Devices ===")
        for row in rows:
            print(f"ID: {row[0]} | Device ID: {row[1]} | IP: {row[2]} | Status: {row[3]} | Last Seen: {row[4]}")
    except Exception as e:
        print("Error:", e)
    finally:
        conn.close()

if __name__ == "__main__":
    main()