@extends('layouts.portal')

@section('title', 'Audit Logs')
@section('page_title', 'Audit Logs')
@section('page_subtitle', 'System activity and security logs')

@section('sidebar')
    @include('admin.partials.sidebar', ['active' => 'audit'])
@endsection

@section('content')
    <div class="bg-white rounded-xl shadow-sm p-6">
        <div class="flex justify-between items-center mb-6">
            <h3 class="text-lg font-semibold text-gray-800">System Audit Logs</h3>
            <form action="{{ route('admin.audit.filter') }}" method="GET" class="flex gap-3">
                <select name="action" class="px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-cyan-400 outline-none">
                    <option value="">All Actions</option>
                    <optgroup label="CRUD Operations">
                        <option value="created">Created</option>
                        <option value="updated">Updated</option>
                        <option value="deleted">Deleted</option>
                    </optgroup>
                    <optgroup label="System Actions">
                        <option value="login">Login</option>
                        <option value="will_viewed">Will Viewed</option>
                        <option value="will_stored">Will Stored</option>
                        <option value="client_created">Client Created</option>
                    </optgroup>
                </select>
                <select name="entity_type" class="px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-cyan-400 outline-none">
                    <option value="">All Entities</option>
                    <option value="App\Models\Client">Client</option>
                    <option value="App\Models\Will">Will</option>
                    <option value="App\Models\User">User</option>
                    <option value="App\Models\Asset">Asset</option>
                    <option value="App\Models\Appointment">Appointment</option>
                    <option value="App\Models\Payment">Payment</option>
                </select>
                <button type="submit" class="px-4 py-2 bg-gray-100 border border-gray-300 rounded-lg hover:bg-gray-200">
                    <i class="fas fa-filter mr-1"></i> Filter
                </button>
            </form>
            <a href="{{ route('admin.audit.export', request()->query()) }}" class="px-4 py-2 bg-cyan-600 text-white rounded-lg hover:bg-cyan-700 whitespace-nowrap">
                <i class="fas fa-file-csv mr-1"></i> Export CSV
            </a>
        </div>
        
        @if($logs->count() > 0)
            <div class="overflow-x-auto">
                <table class="w-full">
                    <thead>
                        <tr class="text-left text-xs font-medium text-gray-500 uppercase tracking-wider border-b border-gray-200">
                            <th class="pb-3">Timestamp</th>
                            <th class="pb-3">User</th>
                            <th class="pb-3">Action</th>
                            <th class="pb-3">Description</th>
                            <th class="pb-3">Entity</th>
                            <th class="pb-3">IP Address</th>
                        </tr>
                    </thead>
                    <tbody class="divide-y divide-gray-200">
                        @foreach($logs as $log)
                            <tr class="hover:bg-gray-50">
                                <td class="py-3 text-sm text-gray-600">{{ $log->created_at->format('d M Y H:i:s') }}</td>
                                <td class="py-3">
                                    <p class="font-medium text-gray-800">{{ $log->user?->name ?? 'System' }}</p>
                                    <p class="text-xs text-gray-500">{{ $log->user?->role ?? 'N/A' }}</p>
                                </td>
                                <td class="py-3">
                                    @php
                                        $actionColors = [
                                            'created' => 'bg-green-100 text-green-800',
                                            'updated' => 'bg-yellow-100 text-yellow-800',
                                            'deleted' => 'bg-red-100 text-red-800',
                                            'login' => 'bg-blue-100 text-blue-800',
                                            'default' => 'bg-gray-100 text-gray-800'
                                        ];
                                        $colorClass = $actionColors[$log->action] ?? $actionColors['default'];
                                    @endphp
                                    <span class="px-2 py-1 text-xs font-medium rounded-full {{ $colorClass }}">
                                        {{ $log->action }}
                                    </span>
                                </td>
                                <td class="py-3 text-sm text-gray-600">
                                    {{ $log->description }}
                                    @if($log->old_values || $log->new_values)
                                        <button onclick="toggleChanges({{ $log->id }})" class="ml-2 text-cyan-600 hover:text-cyan-800 text-xs underline">
                                            <i class="fas fa-eye mr-1"></i>View Changes
                                        </button>
                                        <div id="changes-{{ $log->id }}" class="hidden mt-4 p-4 bg-gray-50 rounded text-xs overflow-x-auto border border-gray-200">
                                            @php
                                                $oldValues = is_array($log->old_values) ? $log->old_values : json_decode($log->old_values, true) ?? [];
                                                $newValues = is_array($log->new_values) ? $log->new_values : json_decode($log->new_values, true) ?? [];
                                                $allKeys = array_unique(array_merge(array_keys($oldValues), array_keys($newValues)));
                                            @endphp
                                            @if(count($allKeys) > 0)
                                                <table class="w-full text-xs border-collapse">
                                                    <thead>
                                                        <tr class="bg-gray-200">
                                                            <th class="px-3 py-2 text-left font-semibold text-gray-700 border border-gray-300">Field</th>
                                                            <th class="px-3 py-2 text-left font-semibold text-red-700 border border-gray-300">Old Value</th>
                                                            <th class="px-3 py-2 text-left font-semibold text-green-700 border border-gray-300">New Value</th>
                                                        </tr>
                                                    </thead>
                                                    <tbody>
                                                        @foreach($allKeys as $key)
                                                            @php
                                                                $oldVal = $oldValues[$key] ?? '-';
                                                                $newVal = $newValues[$key] ?? '-';
                                                                $changed = $oldVal !== $newVal;
                                                            @endphp
                                                            <tr class="{{ $changed ? 'bg-yellow-50' : 'bg-white' }} border border-gray-300">
                                                                <td class="px-3 py-2 font-medium text-gray-800 border border-gray-300">{{ $key }}</td>
                                                                <td class="px-3 py-2 border border-gray-300"><span class="text-red-600 {{ $changed ? 'font-semibold' : '' }}">{{ is_array($oldVal) || is_object($oldVal) ? json_encode($oldVal) : ($oldVal === '' ? '(empty)' : $oldVal) }}</span></td>
                                                                <td class="px-3 py-2 border border-gray-300"><span class="text-green-600 {{ $changed ? 'font-semibold' : '' }}">{{ is_array($newVal) || is_object($newVal) ? json_encode($newVal) : ($newVal === '' ? '(empty)' : $newVal) }}</span></td>
                                                            </tr>
                                                        @endforeach
                                                    </tbody>
                                                </table>
                                            @else
                                                <p class="text-gray-500">No changes recorded</p>
                                            @endif
                                        </div>
                                    @endif
                                </td>
                                <td class="py-3 text-sm text-gray-500">{{ $log->entity_type ? class_basename($log->entity_type) . ' #' . $log->entity_id : '-' }}</td>
                                <td class="py-3 text-sm text-gray-500 font-mono">{{ $log->ip_address }}</td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>
            <div class="mt-4">
                {{ $logs->links() }}
            </div>
        @else
            <div class="text-center py-12">
                <i class="fas fa-shield-alt text-gray-300 text-5xl mb-4"></i>
                <p class="text-gray-500">No audit logs found.</p>
            </div>
        @endif
    </div>
@endsection

@section('scripts')
<script>
function toggleChanges(logId) {
    const element = document.getElementById('changes-' + logId);
    if (element.classList.contains('hidden')) {
        element.classList.remove('hidden');
    } else {
        element.classList.add('hidden');
    }
}
</script>