utils.py

import json
import os
import time
import platform

CONFIG_FILE = "config_dana.json"

# 🎨 Paleta hacker
def color(texto, color):
    colores = {
        "red": "\033[91m",
        "green": "\033[92m",
        "yellow": "\033[93m",
        "cyan": "\033[96m",
        "blue": "\033[94m",
        "magenta": "\033[95m",
        "white": "\033[97m",
        "reset": "\033[0m"
    }
    return f"{colores.get(color, '')}{texto}{colores['reset']}"

# 📂 Configuración
def cargar_config():
    """Carga configuración desde archivo JSON."""
    if not os.path.exists(CONFIG_FILE):
        return {}
    try:
        with open(CONFIG_FILE, "r") as f:
            return json.load(f)
    except Exception:
        return {}

def guardar_config(config):
    """Guarda configuración en archivo JSON."""
    try:
        with open(CONFIG_FILE, "w") as f:
            json.dump(config, f, indent=4)
    except Exception as e:
        print(color(f"[!] Error guardando configuración: {e}", "red"))

def cargar_top_ports(path="top_1000_nmap_ports.json"):
    try:
        with open(path, "r", encoding="utf-8") as f:
            import json
            return json.load(f)
    except Exception as e:
        print(color(f"[!] No se pudo cargar top ports: {e}", "red"))
        return []

# 🧹 Limpieza de pantalla
def limpiar_pantalla():
    os.system("cls" if platform.system() == "Windows" else "clear")

# 💀 Banner estilo hacker
def banner():
    limpiar_pantalla()
    arte = r"""
╔════════════════════════════════════════════╗
║   ██████╗  █████╗ ███╗   ██╗ █████╗        ║
║   ██╔══██╗██╔══██╗████╗  ██║██╔══██╗       ║
║   ██║  ██║███████║██╔██╗ ██║███████║       ║
║   ██║  ██║██╔══██║██║╚██╗██║██╔══██║       ║
║   ██████╔╝██║  ██║██║ ╚████║██║  ██║       ║
║   ╚═════╝ ╚═╝  ╚═╝╚═╝  ╚═══╝╚═╝  ╚═╝       ║
║        D.A.N.A  Network Tools v2.0         ║
╚════════════════════════════════════════════╝
    """
    for linea in arte.split("\n"):
        print(color(linea, "green"))
        time.sleep(0.02)  # efecto "animado"
    print(color("[*] Bienvenido a DANA - Herramienta Modular de Escaneo\n", "cyan"))