@extends('layouts.app')

@section('title', 'Nueva Devolución de Compra')

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="card">
                <div class="card-header">
                    <div class="d-flex justify-content-between align-items-center">
                        <h3 class="card-title">
                            <i class="fas fa-undo mr-2"></i>
                            Nueva Devolución de Compra
                        </h3>
                        <div>
                            <a href="{{ route('admin.purchases.returns.index') }}" class="btn btn-secondary">
                                <i class="fas fa-arrow-left mr-1"></i>
                                Volver al Listado
                            </a>
                        </div>
                    </div>
                </div>

                <form action="{{ route('admin.purchases.returns.store') }}" method="POST">
                    @csrf
                    <div class="card-body">
                        <!-- Información General -->
                        <div class="row mb-4">
                            <div class="col-md-6">
                                <div class="card">
                                    <div class="card-header">
                                        <h5 class="mb-0"><i class="fas fa-info-circle mr-2"></i>Información General</h5>
                                    </div>
                                    <div class="card-body">
                                        <div class="form-group">
                                            <label for="supplier_id">Proveedor <span class="text-danger">*</span></label>
                                            <select name="supplier_id" id="supplier_id" class="form-control @error('supplier_id') is-invalid @enderror" required>
                                                <option value="">Seleccionar Proveedor</option>
                                                @foreach($suppliers as $supplier)
                                                    <option value="{{ $supplier->id }}" {{ old('supplier_id') == $supplier->id ? 'selected' : '' }}>
                                                        {{ $supplier->business_name }}
                                                    </option>
                                                @endforeach
                                            </select>
                                            @error('supplier_id')
                                                <div class="invalid-feedback">{{ $message }}</div>
                                            @enderror
                                        </div>

                                        <div class="form-group">
                                            <label for="purchase_invoice_id">Factura de Compra <span class="text-danger">*</span></label>
                                            <div class="input-group">
                                                <input type="text" id="selected_invoice_display" class="form-control" placeholder="Seleccionar factura..." readonly>
                                                <input type="hidden" name="purchase_invoice_id" id="purchase_invoice_id">
                                                <button type="button" class="btn btn-outline-primary" id="searchInvoiceBtn">
                                                    <i class="fas fa-search me-1"></i>Buscar Factura
                                                </button>
                                            </div>
                                            @error('purchase_invoice_id')
                                                <div class="invalid-feedback">{{ $message }}</div>
                                            @enderror
                                        </div>

                                        <div class="form-group">
                                            <label for="return_date">Fecha de Devolución <span class="text-danger">*</span></label>
                                            <input type="date" name="return_date" id="return_date" class="form-control @error('return_date') is-invalid @enderror" value="{{ old('return_date', date('Y-m-d')) }}" required>
                                            @error('return_date')
                                                <div class="invalid-feedback">{{ $message }}</div>
                                            @enderror
                                        </div>
                                    </div>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="card">
                                    <div class="card-header">
                                        <h5 class="mb-0"><i class="fas fa-comment mr-2"></i>Motivo y Notas</h5>
                                    </div>
                                    <div class="card-body">
                                        <div class="form-group">
                                            <label for="return_reason">Motivo de Devolución <span class="text-danger">*</span></label>
                                            <input type="text" name="return_reason" id="return_reason" class="form-control @error('return_reason') is-invalid @enderror" value="{{ old('return_reason') }}" placeholder="Ej: Producto defectuoso" required>
                                            @error('return_reason')
                                                <div class="invalid-feedback">{{ $message }}</div>
                                            @enderror
                                        </div>

                                        <div class="form-group">
                                            <label for="notes">Notas Adicionales</label>
                                            <textarea name="notes" id="notes" class="form-control @error('notes') is-invalid @enderror" rows="3" placeholder="Notas adicionales sobre la devolución">{{ old('notes') }}</textarea>
                                            @error('notes')
                                                <div class="invalid-feedback">{{ $message }}</div>
                                            @enderror
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <!-- Productos a Devolver -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <div class="card">
                                    <div class="card-header">
                                        <h5 class="mb-0"><i class="fas fa-boxes mr-2"></i>Productos a Devolver</h5>
                                    </div>
                                    <div class="card-body">
                                        <div class="table-responsive">
                                            <table class="table table-striped" id="products-table">
                                                <thead class="thead-dark">
                                                    <tr>
                                                        <th>Producto</th>
                                                        <th>Cantidad Ordenada</th>
                                                        <th>Cantidad Recibida</th>
                                                        <th>Cantidad a Devolver</th>
                                                        <th>Precio Unitario</th>
                                                        <th>Total</th>
                                                        <th>Acciones</th>
                                                    </tr>
                                                </thead>
                                                <tbody id="products-tbody">
                                                    <tr id="no-products-row">
                                                        <td colspan="7" class="text-center text-muted">
                                                            <i class="fas fa-info-circle mr-2"></i>
                                                            Seleccione una factura para ver los productos disponibles
                                                        </td>
                                                    </tr>
                                                </tbody>
                                            </table>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <!-- Resumen -->
                        <div class="row mb-4">
                            <div class="col-md-8"></div>
                            <div class="col-md-4">
                                <div class="card">
                                    <div class="card-header">
                                        <h5 class="mb-0"><i class="fas fa-calculator mr-2"></i>Resumen de Devolución</h5>
                                    </div>
                                    <div class="card-body">
                                        <div class="row">
                                            <div class="col-6"><strong>Productos:</strong></div>
                                            <div class="col-6 text-right" id="total-products">0</div>
                                        </div>
                                        <div class="row">
                                            <div class="col-6"><strong>Cantidad Total:</strong></div>
                                            <div class="col-6 text-right" id="total-quantity">0</div>
                                        </div>
                                        <div class="row">
                                            <div class="col-6"><strong>Valor Total:</strong></div>
                                            <div class="col-6 text-right" id="total-value">$0.00</div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>

                    <div class="card-footer">
                        <div class="d-flex justify-content-between">
                            <a href="{{ route('admin.purchases.returns.index') }}" class="btn btn-secondary">
                                <i class="fas fa-times mr-1"></i>
                                Cancelar
                            </a>
                            <button type="submit" class="btn btn-primary" id="submit-btn" disabled>
                                <i class="fas fa-save mr-1"></i>
                                Crear Devolución
                            </button>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>

<!-- Modal de Búsqueda de Facturas -->
@include('components.invoice-search-modal')

@endsection

@push('scripts')
<script>
// Versión simplificada sin jQuery para el modal
document.addEventListener('DOMContentLoaded', function() {
    console.log('Script cargado');
    
    // Pasar facturas desde PHP a JavaScript
    window.invoicesBySupplier = @json($invoices);
    console.log('Facturas cargadas:', window.invoicesBySupplier.length);
    
    let selectedProducts = [];
    
    // Abrir modal de búsqueda de facturas - versión sin jQuery
    const searchBtn = document.getElementById('searchInvoiceBtn');
    if (searchBtn) {
        searchBtn.addEventListener('click', function() {
            console.log('Botón clickeado');
            const modalElement = document.getElementById('invoiceSearchModal');
            if (modalElement) {
                console.log('Modal encontrado');
                const modal = new bootstrap.Modal(modalElement);
                modal.show();
            } else {
                console.error('Modal no encontrado');
            }
        });
    } else {
        console.error('Botón no encontrado');
    }
    
    // Callback cuando se selecciona una factura
    window.onInvoiceSelected = function(invoice) {
        $('#purchase_invoice_id').val(invoice.id);
        $('#selected_invoice_display').val(`${invoice.invoice_number} - ${invoice.supplier_name} - $${invoice.total_amount}`);
        
        // Cargar productos de la factura seleccionada
        loadInvoiceProducts(invoice.id);
    };
    
    // Función para cargar productos de la factura
    function loadInvoiceProducts(invoiceId) {
        const tbody = $('#products-tbody');
        tbody.empty();
        
        // Buscar la factura en los datos cargados
        const invoice = window.invoicesBySupplier.find(inv => inv.id == invoiceId);
        
        if (invoice && invoice.details) {
            if (invoice.details.length > 0) {
                invoice.details.forEach(function(detail) {
                    const row = `
                        <tr data-product-id="${detail.product_id}">
                            <td>
                                <strong>${detail.product.name}</strong><br>
                                <small class="text-muted">${detail.product.code}</small>
                            </td>
                            <td class="text-center">${detail.quantity_ordered}</td>
                            <td class="text-center">${detail.quantity_received}</td>
                            <td class="text-center">
                                <input type="number" name="products[${detail.product_id}][quantity]" 
                                       class="form-control quantity-input" 
                                       min="1" max="${detail.quantity_received}" 
                                       value="0" style="width: 80px;">
                            </td>
                            <td class="text-right">$${parseFloat(detail.unit_price).toFixed(2)}</td>
                            <td class="text-right product-total">$0.00</td>
                            <td class="text-center">
                                <input type="hidden" name="products[${detail.product_id}][product_id]" value="${detail.product_id}">
                                <input type="hidden" name="products[${detail.product_id}][unit_price]" value="${detail.unit_price}">
                            </td>
                        </tr>
                    `;
                    tbody.append(row);
                });
            } else {
                tbody.append('<tr><td colspan="7" class="text-center text-muted">No hay productos disponibles en esta factura</td></tr>');
            }
        } else {
            tbody.append('<tr><td colspan="7" class="text-center text-danger">Error al cargar productos de la factura</td></tr>');
        }
        
        updateSummary();
    }
    
    // Actualizar totales cuando cambia la cantidad
    $(document).on('input', '.quantity-input', function() {
        const row = $(this).closest('tr');
        const quantity = parseFloat($(this).val()) || 0;
        const unitPrice = parseFloat(row.find('input[name*="[unit_price]"]').val()) || 0;
        const total = quantity * unitPrice;
        
        row.find('.product-total').text('$' + total.toFixed(2));
        updateSummary();
    });
    
    function updateSummary() {
        let totalProducts = 0;
        let totalQuantity = 0;
        let totalValue = 0;
        
        $('.quantity-input').each(function() {
            const quantity = parseFloat($(this).val()) || 0;
            if (quantity > 0) {
                totalProducts++;
                totalQuantity += quantity;
                const row = $(this).closest('tr');
                const unitPrice = parseFloat(row.find('input[name*="[unit_price]"]').val()) || 0;
                totalValue += quantity * unitPrice;
            }
        });
        
        $('#total-products').text(totalProducts);
        $('#total-quantity').text(totalQuantity);
        $('#total-value').text('$' + totalValue.toFixed(2));
        
        // Habilitar/deshabilitar botón de envío
        $('#submit-btn').prop('disabled', totalProducts === 0);
    }
});
</script>
@endpush