<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Services\VpnManager;
use Illuminate\Support\Facades\Validator;

class VpnController extends Controller
{
    private $vpnManager;

    public function __construct(VpnManager $vpnManager)
    {
        $this->vpnManager = $vpnManager;
    }

    public function showCredentialsForm()
    {
        $status = $this->vpnManager->getVpnStatus();
        return view('vpn.credentials', compact('status'));
    }

    public function updateCredentials(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'username' => 'required|string',
            'password' => 'required|string',
            'server' => 'required|string',
        ]);

        if ($validator->fails()) {
            return redirect()->back()
                ->withErrors($validator)
                ->withInput();
        }

        $success = $this->vpnManager->updateCredentials(
            $request->username,
            $request->password,
            $request->server
        );

        if ($success) {
            return redirect()->back()->with('success', 'Credenziali VPN aggiornate con successo!');
        } else {
            return redirect()->back()->with('error', 'Errore nell\'aggiornamento delle credenziali VPN.');
        }
    }

    public function getStatus()
    {
        $status = $this->vpnManager->getVpnStatus();
        $lastUpdate = $this->vpnManager->getLastUpdate();

        return response()->json([
            'status' => $status,
            'last_update' => $lastUpdate
        ]);
    }

    public function connect()
    {
        try {
            $result = $this->vpnManager->connectVpn();

            if ($result) {
                return response()->json(['success' => true, 'message' => 'Connessione VPN avviata']);
            } else {
                return response()->json(['success' => false, 'message' => 'Errore nella connessione VPN']);
            }
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => 'Errore: ' . $e->getMessage()]);
        }
    }

    public function disconnect()
    {
        try {
            $result = $this->vpnManager->disconnectVpn();

            if ($result) {
                return response()->json(['success' => true, 'message' => 'Disconnessione VPN avviata']);
            } else {
                return response()->json(['success' => false, 'message' => 'Errore nella disconnessione VPN']);
            }
        } catch (\Exception $e) {
            return response()->json(['success' => false, 'message' => 'Errore: ' . $e->getMessage()]);
        }
    }

        public function showManagementPage()
    {
        $status = $this->vpnManager->getVpnStatus();
        $lastUpdate = $this->vpnManager->getLastUpdate();
        return view('vpn.management', compact('status', 'lastUpdate'));
    }
}