@extends('layouts.app')

@section('title', 'Facturas de Venta')

@section('content')
<div class="container-fluid py-4">
    <!-- Header -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-1 text-dark">
                <i class="fas fa-file-invoice-dollar me-2 text-primary"></i>Facturas de Venta
            </h1>
            <p class="text-muted mb-0 small">Gestión y seguimiento de facturas de venta</p>
        </div>
                        <div>
            <a href="{{ route('admin.sales.invoices.index', ['show_history' => 1]) }}" class="btn btn-secondary me-2">
                <i class="fas fa-history me-1"></i>Historial Completo
            </a>
            <a href="{{ route('admin.sales.invoices.create') }}" class="btn btn-primary">
                <i class="fas fa-plus me-1"></i>Nueva Factura
                            </a>
                        </div>
                    </div>

                    <!-- Estadísticas -->
    <div class="row g-3 mb-4">
        <div class="col-xl-3 col-md-6">
            <div class="stat-card stat-card-primary">
                <div class="stat-card-icon">
                    <i class="fas fa-file-invoice-dollar"></i>
                </div>
                <div class="stat-card-content">
                    <div class="stat-card-label">Total Facturas</div>
                    <div class="stat-card-value">{{ $stats['total_invoices'] }}</div>
                                </div>
                            </div>
                        </div>
        <div class="col-xl-3 col-md-6">
            <div class="stat-card stat-card-warning">
                <div class="stat-card-icon">
                    <i class="fas fa-edit"></i>
                </div>
                <div class="stat-card-content">
                    <div class="stat-card-label">Borradores</div>
                    <div class="stat-card-value">{{ $stats['draft_invoices'] }}</div>
                                </div>
                            </div>
                        </div>
        <div class="col-xl-3 col-md-6">
            <div class="stat-card stat-card-info">
                <div class="stat-card-icon">
                    <i class="fas fa-paper-plane"></i>
                                </div>
                <div class="stat-card-content">
                    <div class="stat-card-label">Procesadas</div>
                    <div class="stat-card-value">{{ $stats['sent_invoices'] }}</div>
                                </div>
                            </div>
                        </div>
        <div class="col-xl-3 col-md-6">
            <div class="stat-card stat-card-success">
                <div class="stat-card-icon">
                    <i class="fas fa-check-circle"></i>
                                </div>
                <div class="stat-card-content">
                    <div class="stat-card-label">Pagadas</div>
                    <div class="stat-card-value">{{ $stats['paid_invoices'] }}</div>
                                </div>
                            </div>
                        </div>
                    </div>

    <!-- Tabla Principal -->
    <div class="card shadow-sm border-0">
        <div class="card-header bg-white border-bottom py-3">
            <div class="d-flex justify-content-between align-items-center">
                <h5 class="mb-0 text-dark">
                    <i class="fas fa-list me-2 text-primary"></i>Listado de Facturas
                </h5>
                <!-- Filtros Compactos -->
                <div class="d-flex gap-2 align-items-center">
                    <select id="client_filter" class="form-select form-select-sm" style="width: 180px;">
                        <option value="">Todos los clientes</option>
                        @foreach($clients as $client)
                            <option value="{{ $client->id }}" {{ request('client_id') == $client->id ? 'selected' : '' }}>{{ $client->business_name }}</option>
                        @endforeach
                    </select>
                    <select id="status_filter" class="form-select form-select-sm" style="width: 150px;">
                        <option value="">Todos (sin pagadas)</option>
                        @foreach($statuses as $status)
                            <option value="{{ $status }}" {{ request('status') === $status ? 'selected' : '' }}>
                                @if($status === 'sent')
                                    Procesada
                                @elseif($status === 'paid')
                                    Pagada
                                @elseif($status === 'overdue')
                                    Vencida
                                @else
                                    {{ ucfirst($status) }}
                                @endif
                            </option>
                        @endforeach
                        <option value="paid" {{ request('status') === 'paid' ? 'selected' : '' }}>Pagadas</option>
                    </select>
                    <select id="salesman_filter" class="form-select form-select-sm" style="width: 150px;">
                        <option value="">Todos los vendedores</option>
                        @foreach($salesmen as $salesman)
                            <option value="{{ $salesman->id }}" {{ request('salesman_id') == $salesman->id ? 'selected' : '' }}>{{ $salesman->first_name }} {{ $salesman->last_name }}</option>
                        @endforeach
                    </select>
                    <button type="button" class="btn btn-sm btn-secondary" onclick="applyFilters()">
                        <i class="fas fa-filter me-1"></i>Filtrar
                    </button>
                </div>
            </div>
        </div>
        <div class="card-body p-0">
                    <div class="table-responsive">
                <table class="table table-hover align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th class="border-0 ps-4">N° Factura</th>
                            <th class="border-0">Cliente</th>
                            <th class="border-0">Vendedor</th>
                            <th class="border-0">Fecha</th>
                            <th class="border-0">Vencimiento</th>
                            <th class="border-0 text-end">Monto a Cobrar</th>
                            <th class="border-0 text-end">Pagado</th>
                            <th class="border-0 text-end">Pendiente</th>
                            <th class="border-0">Estado</th>
                            <th class="border-0 text-center pe-4">Acciones</th>
                                </tr>
                            </thead>
                            <tbody>
                                @forelse($invoices as $invoice)
                            <tr class="table-row-hover">
                                <td class="ps-4">
                                    <span class="badge bg-primary bg-opacity-10 text-primary fw-bold">{{ $invoice->invoice_number }}</span>
                                        </td>
                                        <td>
                                    @if($invoice->client)
                                            <div>
                                            <div class="fw-semibold text-dark mb-1">{{ Str::limit($invoice->client->business_name, 30) }}</div>
                                                @if($invoice->client->legal_name)
                                                <small class="text-muted">{{ Str::limit($invoice->client->legal_name, 25) }}</small>
                                                @endif
                                            </div>
                                    @else
                                        <span class="text-muted">N/A</span>
                                    @endif
                                        </td>
                                        <td>
                                            @if($invoice->salesman)
                                        <span class="text-dark">{{ $invoice->salesman->first_name }} {{ $invoice->salesman->last_name }}</span>
                                            @else
                                                <span class="text-muted">N/A</span>
                                            @endif
                                        </td>
                                        <td>
                                    <span class="text-muted">{{ $invoice->invoice_date ? $invoice->invoice_date->format('d/m/Y') : 'N/A' }}</span>
                                        </td>
                                        <td>
                                    @if($invoice->due_date)
                                        <span class="text-muted">{{ $invoice->due_date->format('d/m/Y') }}</span>
                                    @else
                                        <span class="text-muted">N/A</span>
                                    @endif
                                </td>
                                <td class="text-end">
                                    @php
                                        // Monto a cobrar: total_legal (USD) si existe, sino total_amount_usd, sino total_amount
                                        $amountToCollect = $invoice->total_legal ?? $invoice->total_amount_usd ?? $invoice->total_amount;
                                    @endphp
                                    <span class="fw-bold text-success">${{ number_format($amountToCollect, 2) }}</span>
                                </td>
                                <td class="text-end">
                                    @php
                                        // Pagado: convertir a USD si es necesario
                                        $paidUSD = $invoice->amount_paid;
                                        if ($invoice->currency !== 'USD' && $invoice->total_legal > 0 && $invoice->total_amount > 0) {
                                            $rate = $invoice->total_amount / $invoice->total_legal;
                                            $paidUSD = $invoice->amount_paid / $rate;
                                        }
                                    @endphp
                                    <span class="text-info">${{ number_format($paidUSD, 2) }}</span>
                                        </td>
                                <td class="text-end">
                                    @php
                                        // Pendiente: monto a cobrar - pagado
                                        $pending = $amountToCollect - $paidUSD;
                                    @endphp
                                    <span class="text-warning fw-semibold">${{ number_format(max(0, $pending), 2) }}</span>
                                        </td>
                                        <td>
                                            @php
                                        $statusConfig = [
                                            'draft' => ['class' => 'secondary', 'icon' => 'edit', 'label' => 'Borrador'],
                                            'sent' => ['class' => 'primary', 'icon' => 'paper-plane', 'label' => 'Procesada'],
                                            'paid' => ['class' => 'success', 'icon' => 'check-circle', 'label' => 'Pagada'],
                                            'overdue' => ['class' => 'danger', 'icon' => 'exclamation-triangle', 'label' => 'Vencida']
                                            // Las facturas no se cancelan, se devuelven mediante notas de crédito
                                        ];
                                        $status = $statusConfig[$invoice->status] ?? ['class' => 'secondary', 'icon' => 'circle', 'label' => ucfirst($invoice->status)];
                                            @endphp
                                    <span class="badge bg-{{ $status['class'] }} px-3 py-2">
                                        <i class="fas fa-{{ $status['icon'] }} me-1"></i>{{ $status['label'] }}
                                            </span>
                                        </td>
                                <td class="text-center pe-4">
                                    <div class="btn-group btn-group-sm" role="group">
                                                <a href="{{ route('admin.sales.invoices.show', $invoice) }}" 
                                           class="btn btn-outline-info" title="Ver detalles">
                                                    <i class="fas fa-eye"></i>
                                                </a>
                                                <a href="{{ route('admin.sales.invoices.edit', $invoice) }}" 
                                           class="btn btn-outline-warning" title="Editar">
                                                    <i class="fas fa-edit"></i>
                                                </a>
                                                @if($invoice->status === 'draft')
                                                    <form action="{{ route('admin.sales.invoices.destroy', $invoice) }}" 
                                                          method="POST" class="d-inline"
                                                  onsubmit="return confirm('¿Estás seguro de eliminar esta factura? Esta acción no se puede deshacer.')">
                                                        @csrf
                                                        @method('DELETE')
                                                <button type="submit" class="btn btn-outline-danger" title="Eliminar">
                                                            <i class="fas fa-trash"></i>
                                                        </button>
                                                    </form>
                                                @endif
                                            </div>
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                <td colspan="10" class="text-center py-5">
                                    <div class="empty-state">
                                        <i class="fas fa-file-invoice-dollar fa-4x text-muted mb-3"></i>
                                        <h5 class="text-muted">No hay facturas registradas</h5>
                                        <p class="text-muted mb-3">Comienza creando tu primera factura.</p>
                                        <a href="{{ route('admin.sales.invoices.create') }}" class="btn btn-primary">
                                            <i class="fas fa-plus me-1"></i>Crear Primera Factura
                                        </a>
                                    </div>
                                        </td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>
        </div>
                    @if($invoices->hasPages())
            <div class="card-footer bg-white border-top py-3">
                        <div class="d-flex justify-content-center">
                    {{ $invoices->appends(request()->query())->links() }}
                </div>
                        </div>
                    @endif
                </div>
            </div>

@push('styles')
<style>
    /* Estilos para las tarjetas de estadísticas */
    .stat-card {
        background: white;
        border-radius: 12px;
        padding: 1.5rem;
        display: flex;
        align-items: center;
        gap: 1rem;
        box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        transition: all 0.3s ease;
        border-left: 4px solid;
        height: 100%;
    }

    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    }

    .stat-card-primary {
        border-left-color: #007bff;
    }

    .stat-card-warning {
        border-left-color: #ffc107;
    }

    .stat-card-info {
        border-left-color: #17a2b8;
    }

    .stat-card-success {
        border-left-color: #28a745;
    }

    .stat-card-icon {
        width: 60px;
        height: 60px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        flex-shrink: 0;
    }

    .stat-card-primary .stat-card-icon {
        background: rgba(0, 123, 255, 0.1);
        color: #007bff;
    }

    .stat-card-warning .stat-card-icon {
        background: rgba(255, 193, 7, 0.1);
        color: #ffc107;
    }

    .stat-card-info .stat-card-icon {
        background: rgba(23, 162, 184, 0.1);
        color: #17a2b8;
    }

    .stat-card-success .stat-card-icon {
        background: rgba(40, 167, 69, 0.1);
        color: #28a745;
    }

    .stat-card-label {
        font-size: 0.875rem;
        color: #6c757d;
        font-weight: 500;
        margin-bottom: 0.25rem;
    }

    .stat-card-value {
        font-size: 1.75rem;
        font-weight: 700;
        color: #2c3e50;
        line-height: 1;
    }

    /* Estilos para la tabla */
    .table thead th {
        font-weight: 600;
        font-size: 0.875rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: #495057;
        padding: 1rem;
    }

    .table tbody td {
        padding: 1rem;
        vertical-align: middle;
    }

    .table-row-hover {
        transition: background-color 0.2s ease;
    }

    .table-row-hover:hover {
        background-color: #f8f9fa;
    }

    .empty-state {
        padding: 2rem;
    }

    .card {
        border-radius: 12px;
        overflow: hidden;
    }

    .badge {
        font-weight: 500;
        letter-spacing: 0.3px;
    }

    .btn-outline-info:hover,
    .btn-outline-warning:hover,
    .btn-outline-success:hover,
    .btn-outline-danger:hover {
        transform: translateY(-1px);
        box-shadow: 0 2px 6px rgba(0,0,0,0.15);
        transition: all 0.2s ease;
    }
</style>
@endpush

@push('scripts')
<script>
function applyFilters() {
    const clientId = document.getElementById('client_filter').value;
    const status = document.getElementById('status_filter').value;
    const salesmanId = document.getElementById('salesman_filter').value;
    const dateFrom = document.getElementById('date_from')?.value;
    const dateTo = document.getElementById('date_to')?.value;
    
    const params = new URLSearchParams();
    if (clientId) params.append('client_id', clientId);
    if (status) params.append('status', status);
    if (salesmanId) params.append('salesman_id', salesmanId);
    if (dateFrom) params.append('date_from', dateFrom);
    if (dateTo) params.append('date_to', dateTo);
    
    window.location.href = '{{ route("admin.sales.invoices.index") }}?' + params.toString();
}

// Auto-submit al cambiar filtros
document.getElementById('client_filter').addEventListener('change', applyFilters);
document.getElementById('status_filter').addEventListener('change', applyFilters);
document.getElementById('salesman_filter').addEventListener('change', applyFilters);
</script>
@endpush
@endsection