@extends('layouts.app')

@section('title', 'Reporte de Stock Bajo')

@section('content')
<div class="container-fluid">
    <!-- Título de la página -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h1 class="h3 mb-0 text-gray-800">
            <i class="fas fa-exclamation-triangle text-warning me-2"></i>Reporte de Stock Bajo
        </h1>
        <div class="btn-group" role="group">
            <button type="button" class="btn btn-success" onclick="window.print()">
                <i class="fas fa-print me-2"></i>Imprimir
            </button>
            <a href="{{ route('admin.inventory.reports') }}" class="btn btn-secondary">
                <i class="fas fa-arrow-left me-2"></i>Volver
            </a>
        </div>
    </div>

    <!-- Información del Reporte -->
    <div class="card mb-4">
        <div class="card-header bg-warning text-dark">
            <h5 class="mb-0">
                <i class="fas fa-info-circle me-2"></i>Información del Reporte
            </h5>
        </div>
        <div class="card-body">
            <div class="row">
                <div class="col-md-3">
                    <strong>Fecha de Generación:</strong><br>
                    {{ now()->format('d/m/Y H:i:s') }}
                </div>
                <div class="col-md-3">
                    <strong>Total de Productos:</strong><br>
                    <span class="badge bg-warning fs-6">{{ $products->count() }}</span>
                </div>
                <div class="col-md-3">
                    <strong>Estado:</strong><br>
                    <span class="badge bg-warning">Stock Bajo</span>
                </div>
                <div class="col-md-3">
                    <strong>Generado por:</strong><br>
                    {{ Auth::user()->name }}
                </div>
            </div>
        </div>
    </div>

    <!-- Tabla de Productos -->
    <div class="card shadow">
        <div class="card-header bg-gradient-warning text-dark py-3">
            <h6 class="m-0 font-weight-bold">
                <i class="fas fa-exclamation-triangle me-2"></i>Productos con Stock Bajo ({{ $products->count() }} productos)
            </h6>
        </div>
        <div class="card-body p-0">
            @if($products->count() > 0)
                <div class="table-responsive">
                    <table class="table table-hover mb-0" id="lowStockTable">
                        <thead class="table-light">
                            <tr>
                                <th class="border-0">
                                    <i class="fas fa-barcode text-muted me-1"></i>Código
                                </th>
                                <th class="border-0">
                                    <i class="fas fa-tag text-muted me-1"></i>Nombre
                                </th>
                                <th class="border-0">
                                    <i class="fas fa-folder text-muted me-1"></i>Categoría
                                </th>
                                <th class="border-0">
                                    <i class="fas fa-award text-muted me-1"></i>Marca
                                </th>
                                <th class="border-0 text-center">
                                    <i class="fas fa-warehouse text-muted me-1"></i>Stock Actual
                                </th>
                                <th class="border-0 text-center">
                                    <i class="fas fa-arrow-down text-muted me-1"></i>Stock Mínimo
                                </th>
                                <th class="border-0 text-center">
                                    <i class="fas fa-arrow-up text-muted me-1"></i>Stock Máximo
                                </th>
                                <th class="border-0 text-center">
                                    <i class="fas fa-calculator text-muted me-1"></i>Diferencia
                                </th>
                                <th class="border-0 text-center">
                                    <i class="fas fa-toggle-on text-muted me-1"></i>Estado
                                </th>
                                <th class="border-0 text-center" style="width: 100px;">
                                    <i class="fas fa-cogs text-muted me-1"></i>Acciones
                                </th>
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($products as $product)
                                @php
                                    $difference = $product->stock_min - $product->total_stock;
                                @endphp
                                <tr class="report-row {{ $product->total_stock == 0 ? 'table-danger' : 'table-warning' }}">
                                    <td class="align-middle">
                                        <div class="product-code">
                                            <div class="fw-bold text-primary">{{ $product->code }}</div>
                                            <small class="text-muted">{{ $product->sku }}</small>
                                        </div>
                                    </td>
                                    <td class="align-middle">
                                        <div class="product-name">
                                            <div class="fw-bold">{{ $product->name }}</div>
                                        </div>
                                    </td>
                                    <td class="align-middle">
                                        <span class="category-badge" style="background-color: {{ $product->category->color }}; color: white;">
                                            <i class="fas fa-folder me-1"></i>{{ $product->category->name }}
                                        </span>
                                    </td>
                                    <td class="align-middle">
                                        <div class="brand-info">
                                            <i class="fas fa-award text-muted me-1"></i>{{ $product->brand->name }}
                                        </div>
                                    </td>
                                    <td class="text-center align-middle">
                                        <span class="stock-badge bg-{{ $product->total_stock == 0 ? 'danger' : 'warning' }}">
                                            {{ $product->total_stock }} {{ $product->unit_of_measure }}
                                        </span>
                                    </td>
                                    <td class="text-center align-middle">
                                        <span class="min-stock-badge">{{ $product->stock_min }}</span>
                                    </td>
                                    <td class="text-center align-middle">
                                        <span class="max-stock-badge">{{ $product->stock_max }}</span>
                                    </td>
                                    <td class="text-center align-middle">
                                        <span class="difference-badge bg-danger">{{ $difference }}</span>
                                    </td>
                                    <td class="text-center align-middle">
                                        <span class="status-badge bg-{{ $product->is_active ? 'success' : 'danger' }}">
                                            <i class="fas fa-{{ $product->is_active ? 'check' : 'times' }} me-1"></i>
                                            {{ $product->is_active ? 'Activo' : 'Inactivo' }}
                                        </span>
                                    </td>
                                    <td class="text-center align-middle">
                                        <div class="action-buttons">
                                            <a href="{{ route('admin.inventory.products.show', $product) }}" 
                                               class="btn btn-sm btn-outline-info me-1" title="Ver detalles">
                                                <i class="fas fa-eye"></i>
                                            </a>
                                            <a href="{{ route('admin.inventory.products.edit', $product) }}" 
                                               class="btn btn-sm btn-outline-primary" title="Editar">
                                                <i class="fas fa-edit"></i>
                                            </a>
                                        </div>
                                    </td>
                                </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>
            @else
                <div class="text-center text-muted py-5">
                    <i class="fas fa-check-circle fa-4x text-success mb-3"></i>
                    <h4>¡Excelente!</h4>
                    <p class="lead">No hay productos con stock bajo en este momento.</p>
                    <p>Todos los productos tienen stock suficiente según sus niveles mínimos establecidos.</p>
                </div>
            @endif
        </div>
    </div>

    <!-- Resumen por Categoría -->
    @if($products->count() > 0)
        <div class="card mt-4">
            <div class="card-header bg-info text-white">
                <h5 class="mb-0">
                    <i class="fas fa-chart-pie me-2"></i>Resumen por Categoría
                </h5>
            </div>
            <div class="card-body">
                <div class="row">
                    @php
                        $categories = $products->groupBy('category.name');
                    @endphp
                    @foreach($categories as $categoryName => $categoryProducts)
                        <div class="col-md-4 mb-3">
                            <div class="card border-left-info">
                                <div class="card-body">
                                    <div class="row no-gutters align-items-center">
                                        <div class="col mr-2">
                                            <div class="text-xs font-weight-bold text-info text-uppercase mb-1">
                                                {{ $categoryName }}
                                            </div>
                                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                                {{ $categoryProducts->count() }} productos
                                            </div>
                                        </div>
                                        <div class="col-auto">
                                            <i class="fas fa-tags fa-2x text-gray-300"></i>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    @endforeach
                </div>
            </div>
        </div>
    @endif
</div>

@push('scripts')
<script>
    // Inicializar DataTable
    $(document).ready(function() {
        $('#lowStockTable').DataTable({
            "language": {
                "url": "//cdn.datatables.net/plug-ins/1.10.25/i18n/Spanish.json"
            },
            "pageLength": 25,
            "order": [[7, "desc"]], // Ordenar por diferencia
            "columnDefs": [
                { "orderable": false, "targets": [9] } // No ordenar acciones
            ]
        });
    });
</script>
@endpush

@push('styles')
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.25/css/dataTables.bootstrap5.min.css">
<style>
    /* Estilos personalizados para reportes */
    .report-row {
        transition: all 0.3s ease;
        border-bottom: 1px solid #e3e6f0;
    }
    
    .report-row:hover {
        background-color: #f8f9fc;
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    
    .product-code {
        min-width: 120px;
    }
    
    .product-name {
        min-width: 200px;
    }
    
    .category-badge {
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 500;
        display: inline-block;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    
    .brand-info {
        font-weight: 500;
        color: #5a5c69;
    }
    
    .stock-badge {
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        display: inline-block;
    }
    
    .min-stock-badge, .max-stock-badge {
        padding: 4px 8px;
        border-radius: 15px;
        background-color: #e9ecef;
        color: #495057;
        font-weight: 600;
        font-size: 0.8rem;
        display: inline-block;
    }
    
    .difference-badge {
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        display: inline-block;
    }
    
    .status-badge {
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        display: inline-block;
    }
    
    .action-buttons {
        display: flex;
        gap: 4px;
        justify-content: center;
    }
    
    .action-buttons .btn {
        width: 32px;
        height: 32px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 6px;
        transition: all 0.3s ease;
    }
    
    .action-buttons .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    }
    
    /* Header de la tabla mejorado */
    .table thead th {
        background-color: #f8f9fc;
        border-bottom: 2px solid #e3e6f0;
        font-weight: 600;
        color: #5a5c69;
        padding: 15px 12px;
        font-size: 0.9rem;
    }
    
    /* Gradiente en el header de la card */
    .bg-gradient-warning {
        background: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
    }
    
    /* Responsive mejoras */
    @media (max-width: 768px) {
        .action-buttons {
            flex-direction: column;
            gap: 2px;
        }
        
        .action-buttons .btn {
            width: 28px;
            height: 28px;
        }
    }
    
    @media print {
        .btn, .card-header .btn-group {
            display: none !important;
        }
        .card {
            border: none !important;
            box-shadow: none !important;
        }
    }
</style>
@endpush

@push('scripts')
<script src="https://cdn.datatables.net/1.10.25/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/1.10.25/js/dataTables.bootstrap5.min.js"></script>
@endpush
@endsection