@extends('layouts.app')

@section('title', 'Clientes Más Importantes')

@section('content')
<div class="container-fluid">
    <div class="row mb-4">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center">
                <h2 class="mb-0">
                    <i class="fas fa-users me-2"></i>Clientes Más Importantes
                </h2>
                <div>
                    <a href="{{ route('admin.reports.index') }}" class="btn btn-secondary">
                        <i class="fas fa-arrow-left me-2"></i>Volver a Reportes
                    </a>
                    <a href="{{ route('admin.reports.top-clients', array_merge(request()->all(), ['export' => 'excel'])) }}" class="btn btn-success">
                        <i class="fas fa-file-excel me-2"></i>Exportar Excel
                    </a>
                    <button onclick="window.print()" class="btn btn-primary">
                        <i class="fas fa-print me-2"></i>Imprimir
                    </button>
                </div>
            </div>
        </div>
    </div>

    <!-- Filtros -->
    <div class="card shadow-sm mb-4">
        <div class="card-header bg-light">
            <h5 class="mb-0">
                <i class="fas fa-filter me-2"></i>Filtros
            </h5>
        </div>
        <div class="card-body">
            <form method="GET" action="{{ route('admin.reports.top-clients') }}" class="row g-3">
                <div class="col-md-3">
                    <label for="date_from" class="form-label">Fecha Desde</label>
                    <input type="date" name="date_from" id="date_from" class="form-control" value="{{ $dateFrom ?? '' }}">
                </div>
                <div class="col-md-3">
                    <label for="date_to" class="form-label">Fecha Hasta</label>
                    <input type="date" name="date_to" id="date_to" class="form-control" value="{{ $dateTo ?? '' }}">
                </div>
                <div class="col-md-3">
                    <label for="limit" class="form-label">Top N Clientes</label>
                    <input type="number" name="limit" id="limit" class="form-control" value="{{ $limit ?? 50 }}" min="1" max="200">
                </div>
                <div class="col-md-3 d-flex align-items-end">
                    <button type="submit" class="btn btn-primary me-2">
                        <i class="fas fa-search me-2"></i>Buscar
                    </button>
                    <a href="{{ route('admin.reports.top-clients') }}" class="btn btn-secondary">
                        <i class="fas fa-redo me-2"></i>Limpiar
                    </a>
                </div>
            </form>
        </div>
    </div>

    <!-- Resumen -->
    <div class="card shadow-sm mb-4">
        <div class="card-header bg-primary text-white">
            <h5 class="mb-0">
                <i class="fas fa-chart-pie me-2"></i>Resumen
            </h5>
        </div>
        <div class="card-body">
            <div class="row text-center">
                <div class="col-md-3">
                    <h3 class="text-primary mb-0">{{ count($topClients) }}</h3>
                    <p class="text-muted mb-0">Clientes Listados</p>
                </div>
                <div class="col-md-3">
                    <h3 class="text-success mb-0">${{ number_format(array_sum(array_column($topClients, 'total_amount')), 2) }}</h3>
                    <p class="text-muted mb-0">Total de Ventas</p>
                </div>
                <div class="col-md-3">
                    <h3 class="text-info mb-0">${{ number_format(array_sum(array_column($topClients, 'total_paid')), 2) }}</h3>
                    <p class="text-muted mb-0">Total Pagado</p>
                </div>
                <div class="col-md-3">
                    <h3 class="text-warning mb-0">${{ number_format(array_sum(array_column($topClients, 'total_due')), 2) }}</h3>
                    <p class="text-muted mb-0">Deuda Actual</p>
                </div>
            </div>
        </div>
    </div>

    <!-- Tabla de Clientes -->
    <div class="card shadow-sm">
        <div class="card-header bg-light">
            <h5 class="mb-0">
                <i class="fas fa-list me-2"></i>Top {{ $limit ?? 50 }} Clientes Más Importantes
            </h5>
        </div>
        <div class="card-body p-0">
            <div class="table-responsive">
                <table class="table table-bordered table-striped table-hover mb-0">
                    <thead class="table-dark">
                        <tr>
                            <th>#</th>
                            <th>Cliente</th>
                            <th>RIF/NIT</th>
                            <th>Teléfono</th>
                            <th class="text-end">Facturas</th>
                            <th class="text-end">Total Ventas</th>
                            <th class="text-end">Total Pagado</th>
                            <th class="text-end">Total Pendiente</th>
                            <th class="text-end">Deuda Actual</th>
                            <th class="text-end">Promedio por Factura</th>
                            <th class="text-end">% del Total</th>
                        </tr>
                    </thead>
                    <tbody>
                        @php
                            $grandTotal = array_sum(array_column($topClients, 'total_amount'));
                        @endphp
                        @forelse($topClients as $index => $item)
                            <tr>
                                <td>{{ $index + 1 }}</td>
                                <td>
                                    <strong>{{ $item['client']->business_name }}</strong>
                                    @if($item['client']->contact_name)
                                        <br><small class="text-muted">{{ $item['client']->contact_name }}</small>
                                    @endif
                                </td>
                                <td>{{ $item['client']->tax_id ?? 'N/A' }}</td>
                                <td>{{ $item['client']->phone ?? 'N/A' }}</td>
                                <td class="text-end">{{ number_format($item['invoice_count'], 0) }}</td>
                                <td class="text-end">
                                    <strong>${{ number_format($item['total_amount'], 2) }}</strong>
                                </td>
                                <td class="text-end text-success">${{ number_format($item['total_paid'], 2) }}</td>
                                <td class="text-end text-warning">${{ number_format($item['total_due'], 2) }}</td>
                                <td class="text-end">
                                    <span class="badge bg-{{ $item['current_debt'] > 0 ? 'danger' : 'success' }}">
                                        ${{ number_format($item['current_debt'], 2) }}
                                    </span>
                                </td>
                                <td class="text-end">${{ number_format($item['avg_amount'], 2) }}</td>
                                <td class="text-end">
                                    <span class="badge bg-{{ $grandTotal > 0 && ($item['total_amount'] / $grandTotal * 100) > 5 ? 'success' : 'info' }}">
                                        {{ $grandTotal > 0 ? number_format(($item['total_amount'] / $grandTotal * 100), 2) : 0 }}%
                                    </span>
                                </td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="11" class="text-center py-4">
                                    <i class="fas fa-info-circle me-2"></i>No se encontraron clientes con ventas en el período seleccionado.
                                </td>
                            </tr>
                        @endforelse
                    </tbody>
                    @if(count($topClients) > 0)
                    <tfoot class="table-light">
                        <tr>
                            <th colspan="4" class="text-end">Totales:</th>
                            <th class="text-end">{{ number_format(array_sum(array_column($topClients, 'invoice_count')), 0) }}</th>
                            <th class="text-end">${{ number_format($grandTotal, 2) }}</th>
                            <th class="text-end">${{ number_format(array_sum(array_column($topClients, 'total_paid')), 2) }}</th>
                            <th class="text-end">${{ number_format(array_sum(array_column($topClients, 'total_due')), 2) }}</th>
                            <th class="text-end">${{ number_format(array_sum(array_column($topClients, 'current_debt')), 2) }}</th>
                            <th class="text-end">-</th>
                            <th class="text-end">100%</th>
                        </tr>
                    </tfoot>
                    @endif
                </table>
            </div>
        </div>
    </div>
</div>

<style>
    @media print {
        .btn, .card-header, .navbar, .sidebar {
            display: none !important;
        }
        .card {
            border: none !important;
            box-shadow: none !important;
        }
    }
</style>
@endsection