<?php

namespace App\Http\Livewire;

use Livewire\Component;
use App\Services\VpnManager;
use Illuminate\Support\Facades\Log;
use Illuminate\Validation\ValidationException;

class VpnManagement extends Component
{
    public $username = 'com.cmrmp013.0001';
    public $password = '';
    public $server = 'anyvpn.ilportaledellautomobilista.it/utentiMCTC';
    public $vpnStatus = 'unknown';
    public $lastUpdate = null;
    public $successMessage = '';
    public $errorMessage = '';

    protected $rules = [
        'username' => 'required|string',
        'password' => 'required|string',
        'server' => 'required|string',
    ];

    protected $vpnManager;

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

    public function mount()
    {
        // Al caricamento, forza una sincronizzazione con il sistema
        $this->refreshStatus(true);
    }

    public function render()
    {
        return view('livewire.vpn-management');
    }

    public function refreshStatus($forceSystemCheck = false)
    {
        $this->vpnStatus = $this->vpnManager->getVpnStatus($forceSystemCheck);
        $this->lastUpdate = $this->vpnManager->getLastUpdate();
        $this->emit('vpnStatusUpdated', $this->vpnStatus);
    }

    public function syncWithSystem()
    {
        try {
            $realStatus = $this->vpnManager->syncStatusWithSystem();
            $this->vpnStatus = $realStatus;
            $this->lastUpdate = $this->vpnManager->getLastUpdate();

            $this->emit('vpnStatusUpdated', $this->vpnStatus);
            $this->emit('showToast', 'success', 'Stato sincronizzato: ' . $this->getStatusText());

            Log::info('VPN status manually synced from frontend', [
                'new_status' => $realStatus
            ]);

        } catch (\Exception $e) {
            $this->emit('showToast', 'error', 'Errore nella sincronizzazione: ' . $e->getMessage());
            Log::error('Error syncing VPN status from frontend: ' . $e->getMessage());
        }
    }

    public function connectVpn()
    {
        try {
            // Se già connesso, non fare nulla
            if ($this->vpnStatus === 'connected') {
                $this->emit('showToast', 'info', 'VPN già connessa');
                return;
            }

            $result = $this->vpnManager->connectVpn();

            if ($result) {
                $this->emit('showToast', 'success', 'Comando di connessione VPN inviato!');
                Log::info('VPN connection command sent from frontend');

                // Refresh status after a delay
                $this->emit('refreshStatusDelayed');
            } else {
                $this->emit('showToast', 'error', 'Errore nel lancio della connessione VPN');
                Log::error('Failed to send VPN connection command from frontend');
            }
        } catch (\Exception $e) {
            $this->emit('showToast', 'error', 'Errore: ' . $e->getMessage());
            Log::error('Error in connectVpn from frontend: ' . $e->getMessage());
        }
    }

    public function disconnectVpn()
    {
        try {
            // Se già disconnesso, non fare nulla
            if ($this->vpnStatus === 'disconnected') {
                $this->emit('showToast', 'info', 'VPN già disconnessa');
                return;
            }

            $result = $this->vpnManager->disconnectVpn();

            if ($result) {
                $this->emit('showToast', 'success', 'Comando di disconnessione VPN inviato!');
                Log::info('VPN disconnection command sent from frontend');

                // Update status immediately for disconnect
                $this->vpnStatus = 'disconnected';
                $this->lastUpdate = now();
                $this->emit('vpnStatusUpdated', $this->vpnStatus);

            } else {
                $this->emit('showToast', 'error', 'Errore nella disconnessione VPN');
                Log::error('Failed to send VPN disconnection command from frontend');
            }
        } catch (\Exception $e) {
            $this->emit('showToast', 'error', 'Errore: ' . $e->getMessage());
            Log::error('Error in disconnectVpn from frontend: ' . $e->getMessage());
        }
    }

    public function updateCredentials()
    {
        try {
            $this->validate();

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

            if ($success) {
                $this->successMessage = 'Credenziali VPN aggiornate con successo!';
                $this->errorMessage = '';
                $this->password = ''; // Clear password field for security

                // Emit event for JavaScript notification
                $this->emit('showToast', 'success', 'Credenziali VPN aggiornate con successo!');

                Log::info('VPN credentials updated successfully');
            } else {
                $this->errorMessage = 'Errore nell\'aggiornamento delle credenziali VPN.';
                $this->successMessage = '';
                $this->emit('showToast', 'error', 'Errore nell\'aggiornamento delle credenziali VPN.');
            }
        } catch (ValidationException $e) {
            // Validation errors are handled automatically by Livewire
            $this->emit('showToast', 'error', 'Errori di validazione nei campi');
        } catch (\Exception $e) {
            $this->errorMessage = 'Errore: ' . $e->getMessage();
            $this->successMessage = '';
            $this->emit('showToast', 'error', 'Errore: ' . $e->getMessage());
            Log::error('Error updating VPN credentials: ' . $e->getMessage());
        }
    }

    public function getStatusBadgeClass()
    {
        return match($this->vpnStatus) {
            'connected' => 'badge badge-success',
            'disconnected' => 'badge badge-danger',
            'error' => 'badge badge-danger',
            default => 'badge badge-warning'
        };
    }

    public function getStatusBadgeText()
    {
        return match($this->vpnStatus) {
            'connected' => 'ON',
            'disconnected' => 'OFF',
            'error' => 'ERR',
            default => '?'
        };
    }

    public function getStatusIconClass()
    {
        return match($this->vpnStatus) {
            'connected' => 'info-box-icon bg-success',
            'disconnected' => 'info-box-icon bg-danger',
            'error' => 'info-box-icon bg-danger',
            default => 'info-box-icon bg-warning'
        };
    }

    public function getStatusIcon()
    {
        return match($this->vpnStatus) {
            'connected' => 'fas fa-check',
            'disconnected' => 'fas fa-times',
            'error' => 'fas fa-exclamation-triangle',
            default => 'fas fa-question'
        };
    }

    public function getStatusText()
    {
        return match($this->vpnStatus) {
            'connected' => 'Connesso',
            'disconnected' => 'Disconnesso',
            'error' => 'Errore',
            default => 'Sconosciuto'
        };
    }
}