@extends('layouts.adminlte-layout')

@section('title', 'Dashboard')

@section('content-header')
<div class="row mb-2">
    <div class="col-sm-6">
        <h1 class="m-0">Dashboard</h1>
    </div>
    <div class="col-sm-6">
        <ol class="breadcrumb float-sm-right">
            <li class="breadcrumb-item active">{{ now()->format('l, F j, Y') }}</li>
        </ol>
    </div>
</div>
@endsection

@section('page-content')
        <!-- Statistics Cards -->
        <div class="row">
            <div class="col-lg-3 col-6">
                <div class="small-box bg-info">
                    <div class="inner">
                        <h3>{{ $stats['total_clients'] ?? 0 }}</h3>
                        <p>Total Clients</p>
                    </div>
                    <div class="icon">
                        <i class="fas fa-users"></i>
                    </div>
                    <a href="{{ route('vpn.clients.index') }}" class="small-box-footer">More info <i class="fas fa-arrow-circle-right"></i></a>
                </div>
            </div>

            <div class="col-lg-3 col-6">
                <div class="small-box bg-success">
                    <div class="inner">
                        <h3>{{ $stats['active_clients'] ?? 0 }}</h3>
                        <p>Active Clients</p>
                    </div>
                    <div class="icon">
                        <i class="fas fa-user-check"></i>
                    </div>
                    <a href="{{ route('vpn.clients.index') }}?status=active" class="small-box-footer">More info <i class="fas fa-arrow-circle-right"></i></a>
                </div>
            </div>

            <div class="col-lg-3 col-6">
                <div class="small-box bg-warning">
                    <div class="inner">
                        <h3>{{ $stats['connected_clients'] ?? 0 }}</h3>
                        <p>Connected Now</p>
                    </div>
                    <div class="icon">
                        <i class="fas fa-link"></i>
                    </div>
                    <a href="{{ route('vpn.status') }}" class="small-box-footer">More info <i class="fas fa-arrow-circle-right"></i></a>
                </div>
            </div>

            <div class="col-lg-3 col-6">
                <div class="small-box bg-danger">
                    <div class="inner">
                        <h3>
                            @php
                                $bytes = $stats['total_traffic'] ?? 0;
                                $units = ['B', 'KB', 'MB', 'GB', 'TB'];
                                for ($i = 0; $bytes > 1024 && $i < count($units) - 1; $i++) {
                                    $bytes /= 1024;
                                }
                                echo round($bytes, 2) . ' ' . $units[$i];
                            @endphp
                        </h3>
                        <p>Total Traffic</p>
                    </div>
                    <div class="icon">
                        <i class="fas fa-chart-line"></i>
                    </div>
                    <a href="{{ route('vpn.status') }}" class="small-box-footer">More info <i class="fas fa-arrow-circle-right"></i></a>
                </div>
            </div>
        </div>

        <div class="row">
            <div class="col-md-6">
                <div class="card card-primary">
                    <div class="card-header">
                        <h3 class="card-title">
                            <i class="fas fa-users mr-2"></i>Recent Clients
                        </h3>
                    </div>
                    <div class="card-body p-0">
                        @if(isset($recentClients) && count($recentClients) > 0)
                            <table class="table table-striped">
                                <thead>
                                    <tr>
                                        <th>Name</th>
                                        <th>Email</th>
                                        <th>Status</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($recentClients as $client)
                                    <tr>
                                        <td>
                                            <a href="{{ route('vpn.clients.show', $client->id) }}">
                                                <i class="fas fa-user mr-1"></i>
                                                <strong>{{ $client->name }}</strong>
                                            </a>
                                        </td>
                                        <td>
                                            <small>{{ $client->email ?? 'No email' }}</small>
                                        </td>
                                        <td>
                                            <span class="badge
                                                @if($client->status == 'active') badge-success
                                                @elseif($client->status == 'revoked') badge-danger
                                                @else badge-secondary
                                                @endif">
                                                {{ ucfirst($client->status) }}
                                            </span>
                                        </td>
                                    </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        @else
                            <div class="text-center p-4">
                                <i class="fas fa-users fa-2x text-muted mb-2"></i>
                                <p class="text-muted">No clients yet</p>
                            </div>
                        @endif
                    </div>
                </div>
            </div>

            <div class="col-md-6">
                <div class="card card-success">
                    <div class="card-header">
                        <h3 class="card-title">
                            <i class="fas fa-plug mr-2"></i>Connected Clients
                        </h3>
                        <div class="card-tools">
                            <span class="badge badge-light">{{ count($activeConnections) }} Online</span>
                            <div class="custom-control custom-switch custom-switch-sm d-inline-block ml-2">
                                <input type="checkbox" class="custom-control-input" id="auto-refresh-dashboard" onchange="toggleAutoRefresh()">
                                <label class="custom-control-label" for="auto-refresh-dashboard" title="Auto-refresh every 10 seconds">Auto</label>
                            </div>
                            <button type="button" class="btn btn-tool" onclick="location.reload()">
                                <i class="fas fa-sync-alt"></i>
                            </button>
                        </div>
                    </div>
                    <div class="card-body p-0">
                        @if(isset($activeConnections) && count($activeConnections) > 0)
                            <table class="table table-striped">
                                <thead>
                                    <tr>
                                        <th>Client</th>
                                        <th>IP Address</th>
                                        <th>Traffic</th>
                                        <th>Time</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($activeConnections as $connection)
                                    <tr>
                                        <td>
                                            @if($connection->vpn_client_id && $connection->client)
                                                <a href="{{ route('vpn.clients.show', $connection->vpn_client_id) }}">
                                                    <i class="fas fa-circle text-success"></i>
                                                    <strong>{{ $connection->client->name }}</strong>
                                                </a>
                                            @else
                                                <i class="fas fa-circle text-success"></i>
                                                <strong>Unknown Client</strong>
                                            @endif
                                        </td>
                                        <td>
                                            <small>{{ $connection->real_address ?? 'N/A' }}</small><br>
                                            <span class="badge badge-info">{{ $connection->virtual_address ?? 'N/A' }}</span>
                                        </td>
                                        <td>
                                            <small>
                                                <i class="fas fa-upload text-success"></i> {{ number_format(($connection->bytes_sent ?? 0) / 1024) }} KB<br>
                                                <i class="fas fa-download text-primary"></i> {{ number_format(($connection->bytes_received ?? 0) / 1024) }} KB
                                            </small>
                                        </td>
                                        <td>
                                            <small>{{ $connection->connected_at->diffForHumans(null, true) }}</small>
                                        </td>
                                    </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        @else
                            <div class="text-center p-4">
                                <i class="fas fa-plug fa-2x text-muted mb-2"></i>
                                <p class="text-muted">No active connections</p>
                            </div>
                        @endif
                    </div>
                </div>
            </div>
        </div>

        <!-- Quick Actions -->
        <div class="row">
            <div class="col-12">
                <div class="card">
                    <div class="card-header">
                        <h3 class="card-title">Quick Actions</h3>
                    </div>
                    <div class="card-body">
                        <div class="row">
                            <div class="col-md-4">
                                <a href="{{ route('vpn.clients.create') }}" class="btn btn-primary btn-block">
                                    <i class="fas fa-user-plus mr-2"></i> Add New Client
                                </a>
                            </div>
                            <div class="col-md-4">
                                <a href="{{ route('vpn.clients.index') }}" class="btn btn-success btn-block">
                                    <i class="fas fa-list mr-2"></i> View All Clients
                                </a>
                            </div>
                            <div class="col-md-4">
                                <a href="{{ route('vpn.status') }}" class="btn btn-info btn-block">
                                    <i class="fas fa-server mr-2"></i> Server Status
                                </a>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        
        <script>
        // Auto-refresh for connected clients
        let autoRefreshInterval = null;

        function toggleAutoRefresh() {
            const checkbox = document.getElementById('auto-refresh-dashboard');
            
            if (checkbox && checkbox.checked) {
                // Start auto-refresh every 10 seconds
                autoRefreshInterval = setInterval(() => {
                    location.reload();
                }, 10000);
                
                // Store preference
                localStorage.setItem('dashboard-auto-refresh', 'true');
            } else {
                // Stop auto-refresh
                if (autoRefreshInterval) {
                    clearInterval(autoRefreshInterval);
                    autoRefreshInterval = null;
                }
                localStorage.setItem('dashboard-auto-refresh', 'false');
            }
        }

        // Check saved preference on page load
        document.addEventListener('DOMContentLoaded', function() {
            const savedPref = localStorage.getItem('dashboard-auto-refresh');
            if (savedPref === 'true') {
                const checkbox = document.getElementById('auto-refresh-dashboard');
                if (checkbox) {
                    checkbox.checked = true;
                    toggleAutoRefresh();
                }
            }
        });
        </script>
@endsection