@extends('layouts.layoutapp')

@section('content')

<div class="main-content">
    <div class="row">
        <div class="col-12">
            <div class="card mb-4 mx-4">
                <div class="card-header pb-0">
                    <div class="d-flex flex-row justify-content-between">
                        <div>
                            <h5 class="mb-0">Add New Invoice</h5>
                        </div>
                    </div>
                </div>

                <div class="card-body">
                    <form action="{{ route('invoice-store') }}" method="POST" id="invoiceForm">
                        @csrf
                        <div class="row">
                            <div class="col-lg-3 mb-3">
                                <label for="client_name" class="form-label">Client Name:</label>
                                <input type="text" name="client_name" id="client_name" class="form-control" value="{{ old('client_name') }}">
                                <span class="text-danger d-block mt-1" id="client_name_error"></span>
                                @error('client_name')
                                    <span class="text-danger">{{ $message }}</span>
                                @enderror
                            </div>
                            <div class="col-lg-3 mb-3">
                                <label for="client_num" class="form-label">Client Number:</label>
                                <select name="client_num" id="client_num_select" class="select2 form-select" multiple >
                                    @foreach ($clients as $client)
                                        <option value="{{ $client->user->phone }}" {{ in_array($client->user->phone, (array)old('client_num', [])) ? 'selected' : '' }}>
                                            {{ $client->user->phone }}
                                        </option>
                                    @endforeach
                                </select>
                                <div id="client_num_error" class="text-danger small" style="display: none;"></div>
                                @error('client_num')
                                    <span class="text-danger">{{ $message }}</span>
                                @enderror
                            </div>
                            <div class="col-lg-3 mb-3">
                                <label for="invoice_id" class="form-label">Invoice number:</label>
                                <input type="text" id="invoice_id" class="form-control" value="" readonly>
                            </div>
                            <div class="col-lg-3 mb-3">
                                <label for="invoice_date" class="form-label">Invoice Date:</label>
                                <input type="date" id="invoice_date" class="form-control" name="invoice_date" 
                                       value="{{ old('invoice_date', \Carbon\Carbon::now()->format('Y-m-d')) }}" required>
                                @error('invoice_date')
                                    <span class="text-danger">{{ $message }}</span>
                                @enderror
                            </div>
                            <div class="col-lg-3 mb-3">
                                <label for="due_date" class="form-label">Due Date:</label>
                                <input type="date" id="due_date" class="form-control" name="due_date" 
                                       value="{{ old('due_date', \Carbon\Carbon::now()->format('Y-m-d')) }}" required>
                                @error('due_date')
                                    <span class="text-danger">{{ $message }}</span>
                                @enderror
                            </div>
                            <div class="col-lg-3 mb-3">
                                <label for="gst" class="form-label">GST/Non-GST:</label>
                                <select name="gst" id="gst" class="form-select" onchange="toggleTaxes()">
                                    <option value="">Select</option>
                                    <option value="Y" {{ old('gst') == 'Y' ? 'selected' : '' }} selected>GST</option>
                                    <option value="N" {{ old('gst') == 'N' ? 'selected' : '' }}>Non-GST</option>
                                </select>
                                @error('gst')
                                    <span class="text-danger">{{ $message }}</span>
                                @enderror
                            </div>
                        </div>
                        <hr>
                        <div>
                            <h5>Product Details:</h5>
                            <div class="row align-items-center">
                                <div class="col-lg-4 d-flex align-items-center mb-3">
                                    <i class="fa-solid fa-qrcode" style="width: 30px; height: 30px; margin-right: 10px;"></i>
                                    <input class="form-control" type="text" id="product-code-input" onkeydown="preventFormSubmit(event)">
                                </div>
                                <div class="col-lg-4">
                                    <button type="button" onclick="addRow(event)" class="btn btn-primary">
                                        <i class="fas fa-plus"></i> Add Row
                                    </button>
                                </div>
                            </div>

                            <div class="table-responsive">
                                <table class="table table-bordered table-striped text-sm" id="productsTable">
                                    <thead class="thead-dark">
                                        <tr>
                                            <th>#</th>
                                            <th>Product</th>
                                            <th>Avl. Qty</th>
                                            <th>Qty</th>
                                            <th>Unit Price</th>
                                            <th>Tax</th>
                                            <th>Amount</th>
                                            <th>Action</th>
                                        </tr>
                                    </thead>
                                    <tbody id="productRows">
                                        <!-- Dynamic rows will be added here -->
                                    </tbody>
                                </table>
                            </div>
                        </div>
                        <div class="row mt-5">
                            <div class="col-lg-6 mb-3 d-flex">
                                <div class="col-lg-6">
                                    <label for="discount_type" class="form-label">Discount type:</label>
                                    <select name="discount_type" id="discount_type" class="form-select" onchange="calculateTotal()">
                                        <option value="">Select discount type</option>
                                        @foreach ($discount_types as $type)
                                            <option value="{{ $type->id }}" {{ old('discount_type') == $type->id ? 'selected' : '' }}>
                                                {{ $type->type }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('discount_type')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>

                                <div class="col-lg-6">
                                    <label for="discount" class="form-label">Discount:</label>
                                    <input type="number" id="discount" name="discount" class="form-control" 
                                           value="{{ old('discount') }}" onchange="calculateTotal()" 
                                           {{ empty(old('discount_type')) ? 'readonly' : '' }}>
                                    @error('discount')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-lg-5 mb-3">
                                <div class="card shadow-lg">
                                    <div class="card-body">
                                        <div class="d-flex justify-content-between pl-5">
                                            <span>Sub Total:</span>
                                            <span id="subTotalDisplay">0 ₹</span>
                                        </div>
                                        <div class="d-flex justify-content-between pl-5">
                                            <span>Discount:</span>
                                            <span id="discountDisplay">0 ₹</span>
                                        </div>
                                        <div class="d-flex justify-content-between pl-5">
                                            <span>Tax:</span>
                                            <span id="taxDisplay">0 ₹</span>
                                        </div>
                                        <div class="d-flex justify-content-between pl-5">
                                            <span>Total:</span>
                                            <span id="totalDisplay">0 ₹</span>
                                        </div>
                                        <input type="hidden" id="sub_total" name="sub_total" value="0">
                                        <input type="hidden" id="discount_amt" name="discount_amt" value="0">
                                        <input type="hidden" id="tax" name="tax" value="0">
                                        <input type="hidden" id="total_amt" name="total_amt" value="0">
                                    </div>
                                </div>
                            </div>
                        </div>

                        <hr>
                        <div>
                            <h5>Payment Details:</h5>
                            <div class="row">
                                <div class="col-lg-3 mb-3">
                                    <label for="status" class="form-label">Status:</label>
                                    <select name="status" id="status" class="form-select" required>
                                        <option value="">Select status</option>
                                        @foreach ($payment_status as $status)
                                            <option value="{{ $status->id }}" {{ old('status') == $status->id ? 'selected' : '' }}>
                                                {{ $status->name }}
                                            </option>
                                        @endforeach
                                    </select>
                                    @error('status')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>
                                <div class="col-lg-3 mb-3">
                                    <label for="upi" class="form-label">UPI:</label>
                                    <input type="text" name="upi" id="upi" class="form-control" value="{{ old('upi') }}">
                                    @error('upi')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>
                                <div class="col-lg-3 mb-3">
                                    <label for="cash" class="form-label">Cash:</label>
                                    <input type="text" name="cash" id="cash" class="form-control" value="{{ old('cash') }}">
                                    @error('cash')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>
                                <div class="col-lg-3 mb-3">
                                    <label for="online" class="form-label">Online:</label>
                                    <input type="text" name="online" id="online" class="form-control" value="{{ old('online') }}">
                                    @error('online')
                                        <span class="text-danger">{{ $message }}</span>
                                    @enderror
                                </div>
                                @if ($errors->has('payment_total'))
                                    <div class="text-danger">
                                        {{ $errors->first('payment_total') }}
                                    </div>
                                @endif
                            </div>
                        </div>

                        <hr>
                        <div>
                            <button type="button" onclick="toggleNotesAndTerms()" class="btn btn-primary" id="notesTermsBtn">
                                <i class="fas fa-plus"></i> Add Note & Term
                            </button>
                            <div class="row" id="notesTermsSection" style="display: none;">
                                <div class="col-lg-6">
                                    <label for="note" class="form-label">Note:</label>
                                    <textarea class="form-control" name="note" id="note">{{ old('note') }}</textarea>
                                </div>
                                <div class="col-lg-6">
                                    <label for="term" class="form-label">Term:</label>
                                    <textarea class="form-control" name="term" id="term">{{ old('term') }}</textarea>
                                </div>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="submit" id="submit" class="btn btn-primary">Save</button>
                            <a href="{{ route('invoice-index') }}" class="btn btn-secondary">Cancel</a>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
    // Product data from backend
    const products = @json($products);
    const taxes = @json($all_taxes);
    const defaultTaxIds = @json($default_taxes);        

    let rowCount = 0;
    let hasQuantityError = false;
    
    function preventFormSubmit(event) {
        if (event.key === 'Enter') {
            event.preventDefault();
            addProductRow();
            setTimeout(() => {
                document.getElementById('product-code-input').focus();
            }, 1000);
        }
    }
    
    function addRow(event) {
        event.preventDefault();
        addProductRow();
        setTimeout(() => {
            document.getElementById('product-code-input').focus();
        }, 1000);
    }
    
    function addProductRow() {
        const productCode = document.getElementById('product-code-input').value;
        if (!productCode) {
            addEmptyRow();
            return;
        }
        
        const product = products.find(p => p.code === productCode);
        if (product) {
            const existingRow = findProductRow(product.id);
            
            if (existingRow) {
                const qtyInput = existingRow.querySelector('.qty');
                const currentQty = parseFloat(qtyInput.value) || 0;
                qtyInput.value = currentQty + 1;
                calculateRowAmount(existingRow.id.split('-')[1]); 
                checkQuantity(existingRow.id.split('-')[1]);
            } else {
                addProductToTable(product);
            }
            
            document.getElementById('product-code-input').value = '';
        } else {
            alert('Product not found!');
        }
    }

    function findProductRow(productId) {
        const rows = document.querySelectorAll('#productRows tr');
        for (const row of rows) {
            const select = row.querySelector('.product-select');
            if (select && select.value == productId) {
                return row;
            }
        }
        return null;
    }
    
    function addEmptyRow() {
        rowCount++;
        const row = `
            <tr id="row-${rowCount}">
                <td>${rowCount}</td>
                <td>
                    <select name="dynamicFields[${rowCount}][product]" class="form-select product-select" 
                            onchange="updateProductDetails(${rowCount})">
                        <option value="">Select Product</option>
                        ${products.map(p => `<option value="${p.id}">${p.code}-${p.name}</option>`).join('')}
                    </select>
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][avl_qty]" class="form-control avl-qty" readonly />
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][qty]" class="form-control qty" 
                           onchange="calculateRowAmount(${rowCount})" 
                           oninput="checkQuantity(${rowCount})" />
                    <div class="invalid-feedback quantity-error" style="display: none;">
                        Quantity exceeds available stock!
                    </div>
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][unit_price]" class="form-control unit-price"
                           onchange="calculateRowAmount(${rowCount})" />
                </td>
               <td style="min-width: 150px;">
    <select name="dynamicFields[${rowCount}][tax][]" class="form-select tax-select" multiple
            style="height: auto; min-height: 38px;"
            onchange="calculateRowAmount(${rowCount})">
        ${taxes.map(t => {
    const taxId = t.id; // No need to convert to string if IDs are numbers
    const isDefault = defaultTaxIds.includes(taxId);
    
    return `<option value="${t.id}" ${isDefault ? 'selected' : ''}>${t.name} - ${t.value}%</option>`;
}).join('')}
    </select>
</td>
                <td style="width:150px;">
                    <input type="text" name="dynamicFields[${rowCount}][amount]" class="form-control amount" readonly />
                </td>
                <td>
                    <button type="button" onclick="removeRow(${rowCount})" class="btn btn-danger btn-sm">
                        <i class="fas fa-trash"></i>
                    </button>
                </td>
            </tr>
        `;
        document.getElementById('productRows').insertAdjacentHTML('beforeend', row);
        $(`#row-${rowCount} .product-select`).select2({
        placeholder: "Select Product",
        width: '100%'
    });

        // If GST is selected, enable taxes, otherwise disable
        const gstValue = document.getElementById('gst').value;
        if (gstValue === 'N') {
            const taxSelect = document.querySelector(`#row-${rowCount} .tax-select`);
            taxSelect.innerHTML = '<option value="no-tax" selected>No Tax</option>';
            taxSelect.disabled = true;
        }
    }

    function addProductToTable(product) {
        rowCount++;
        const row = `
            <tr id="row-${rowCount}">
                <td>${rowCount}</td>
                <td>
                    <select name="dynamicFields[${rowCount}][product]" class="form-select product-select" 
                            onchange="updateProductDetails(${rowCount})">
                        <option value="">Select Product</option>
                        ${products.map(p => `<option value="${p.id}" ${p.id == product.id ? 'selected' : ''}>${p.code}-${p.name}</option>`).join('')}
                    </select>
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][avl_qty]" class="form-control avl-qty" 
                           value="${product.qty}" readonly />
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][qty]" class="form-control qty" 
                           value="1" onchange="calculateRowAmount(${rowCount})" 
                           oninput="checkQuantity(${rowCount})" />
                    <div class="invalid-feedback quantity-error" style="display: none;">
                        Quantity exceeds available stock!
                    </div>
                </td>
                <td style="width:120px;">
                    <input type="text" name="dynamicFields[${rowCount}][unit_price]" class="form-control unit-price" 
                           value="${product.unit_price}" onchange="calculateRowAmount(${rowCount})" />
                </td>
                <td style="min-width: 150px;">
                    <select name="dynamicFields[${rowCount}][tax][]" class="form-select tax-select" multiple
                            style="height: auto; min-height: 38px;"
                            onchange="calculateRowAmount(${rowCount})">
                        ${taxes.map(t => {
                            const isDefault = defaultTaxIds.includes(t.id);
                            const isProductTax = product.taxes ? product.taxes.includes(t.id) : false;
                            const shouldSelect = isDefault || isProductTax;
                            return `<option value="${t.id}" ${shouldSelect ? 'selected' : ''}>${t.name} - ${t.value}%</option>`;
                        }).join('')}
                    </select>
                </td>
                <td style="width:150px;">
                    <input type="text" name="dynamicFields[${rowCount}][amount]" class="form-control amount" 
                           value="${product.unit_price}" readonly  />
                </td>
                <td>
                    <button type="button" onclick="removeRow(${rowCount})" class="btn btn-danger btn-sm">
                        <i class="fas fa-trash"></i>
                    </button>
                </td>
            </tr>
        `;
        document.getElementById('productRows').insertAdjacentHTML('beforeend', row);
        $(`#row-${rowCount} .product-select`).select2({
        placeholder: "Select Product",
        width: '100%'
    });

        calculateRowAmount(rowCount);
        checkQuantity(rowCount);
        
        // If GST is selected, enable taxes, otherwise disable
        const gstValue = document.getElementById('gst').value;
        if (gstValue === 'N') {
            const taxSelect = document.querySelector(`#row-${rowCount} .tax-select`);
            Array.from(taxSelect.options).forEach(option => option.selected = false);
            taxSelect.disabled = true;
            calculateRowAmount(rowCount);
        }
    }
    
    function updateProductDetails(rowId) {
        const row = document.getElementById(`row-${rowId}`);
        const productId = row.querySelector('.product-select').value;
        const product = products.find(p => p.id == productId);
        
        if (product) {
            row.querySelector('.avl-qty').value = product.qty;
            row.querySelector('.qty').value = 1;
            row.querySelector('.unit-price').value = product.unit_price;
            calculateRowAmount(rowId);
            checkQuantity(rowId);
        }
    }
    
    function checkQuantity(rowId) {
        const row = document.getElementById(`row-${rowId}`);
        const qtyInput = row.querySelector('.qty');
        const avlQty = parseFloat(row.querySelector('.avl-qty').value) || 0;
        const qty = parseFloat(qtyInput.value) || 0;
        const errorElement = row.querySelector('.quantity-error');
        
        if (qty > avlQty) {
            qtyInput.classList.add('is-invalid');
            errorElement.style.display = 'block';
            hasQuantityError = true;
            return false;
        } else {
            qtyInput.classList.remove('is-invalid');
            errorElement.style.display = 'none';
            
            // Check if all other rows are also valid
            hasQuantityError = false;
            document.querySelectorAll('#productRows tr').forEach(r => {
                const rQtyInput = r.querySelector('.qty');
                const rAvlQty = parseFloat(r.querySelector('.avl-qty').value) || 0;
                const rQty = parseFloat(rQtyInput?.value) || 0;
                
                if (rQty > rAvlQty) {
                    hasQuantityError = true;
                }
            });
            
            return true;
        }
    }
    
    function calculateRowAmount(rowId) {
        const row = document.getElementById(`row-${rowId}`);
        const qty = parseFloat(row.querySelector('.qty').value) || 0;
        const unitPrice = parseFloat(row.querySelector('.unit-price').value) || 0;
        const amount = qty * unitPrice;
        
        // Calculate tax
        const taxSelect = row.querySelector('.tax-select');
        const selectedTaxes = Array.from(taxSelect.selectedOptions).map(opt => parseInt(opt.value));
        let taxRate = 0;
        
        selectedTaxes.forEach(taxId => {
            const tax = taxes.find(t => t.id == taxId);
            if (tax) taxRate += tax.value;
        });
        
        const taxAmount = amount * (taxRate / 100);
        const totalWithTax = amount + taxAmount;
        
        row.querySelector('.amount').value = amount.toFixed(2);
        calculateTotal();
    }
    
    function calculateTotal() {
        let subTotal = 0;
        let totalTax = 0;
        
        document.querySelectorAll('#productRows tr').forEach(row => {
            const amount = parseFloat(row.querySelector('.amount').value) || 0;
            const qty = parseFloat(row.querySelector('.qty').value) || 0;
            const unitPrice = parseFloat(row.querySelector('.unit-price').value) || 0;
            const rowAmount = qty * unitPrice;
            
            subTotal += rowAmount;
            
            // Calculate tax for this row
            const taxSelect = row.querySelector('.tax-select');
            const selectedTaxes = Array.from(taxSelect.selectedOptions).map(opt => parseInt(opt.value));
            let taxRate = 0;
            
            selectedTaxes.forEach(taxId => {
                const tax = taxes.find(t => t.id == taxId);
                if (tax) taxRate += tax.value;
            });
            
            totalTax += rowAmount * (taxRate / 100);
        });
        
        // Calculate discount
        const discountType = document.getElementById('discount_type').value;
        const discountValue = parseFloat(document.getElementById('discount').value) || 0;
        let discountAmount = 0;

        var subtotalWithTax = subTotal + totalTax;
        
        if (discountType == 1) {
            discountAmount = discountValue;
        } else if (discountType == 2) {
            discountAmount = subtotalWithTax * (discountValue / 100);
        }
        
        const total = subtotalWithTax - discountAmount;
        
        // Update display
        document.getElementById('subTotalDisplay').textContent = subTotal.toFixed(2) + ' ₹';
        document.getElementById('discountDisplay').textContent = discountAmount.toFixed(2) + ' ₹';
        document.getElementById('taxDisplay').textContent = totalTax.toFixed(2) + ' ₹';
        document.getElementById('totalDisplay').textContent = Math.floor(total).toFixed(2) + ' ₹';
        
        // Update hidden fields
        document.getElementById('sub_total').value = subTotal.toFixed(2);
        document.getElementById('discount_amt').value = discountAmount.toFixed(2);
        document.getElementById('tax').value = totalTax.toFixed(2);
        document.getElementById('total_amt').value = Math.floor(total).toFixed(2);
    }
    
    function toggleTaxes() {
        const gstValue = document.getElementById('gst').value;
        const taxSelects = document.querySelectorAll('.tax-select');

        taxSelects.forEach(select => {
            if (gstValue === 'N') {
                select.innerHTML = '<option value="no-tax" selected>No Tax</option>';
                select.disabled = true;
            } else {
                select.disabled = false;
                select.innerHTML = taxes.map(t => {
                    const isDefault = defaultTaxIds.includes(t.id);
                    return `<option value="${t.id}" ${isDefault ? 'selected' : ''}>${t.name} - ${t.value}%</option>`;
                }).join('');
            }
        });

        calculateTotal();
    }
    
    function toggleNotesAndTerms() {
        const section = document.getElementById('notesTermsSection');
        const btn = document.getElementById('notesTermsBtn');
        
        if (section.style.display === 'none') {
            section.style.display = 'flex';
            btn.innerHTML = '<i class="fas fa-minus"></i> remove Note & Term';
        } else {
            section.style.display = 'none';
            btn.innerHTML = '<i class="fas fa-plus"></i> Add Note & Term';
        }
    }
    
    function removeRow(rowId) {
        document.getElementById(`row-${rowId}`).remove();
        calculateTotal();
        
        // After removing a row, check if we still have quantity errors
        hasQuantityError = false;
        document.querySelectorAll('#productRows tr').forEach(r => {
            const rQtyInput = r.querySelector('.qty');
            const rAvlQty = parseFloat(r.querySelector('.avl-qty').value) || 0;
            const rQty = parseFloat(rQtyInput?.value) || 0;
            
            if (rQty > rAvlQty) {
                hasQuantityError = true;
            }
        });
    }
    
    // Form submission validation
    function validateForm(event) {
        // First check all quantities
        document.querySelectorAll('#productRows tr').forEach(row => {
            const rowId = row.id.split('-')[1];
            checkQuantity(rowId);
        });
        
        if (hasQuantityError) {
            event.preventDefault();
            Swal.fire({
                icon: 'error',
                title: 'Quantity Error',
                text: 'Please fix quantity errors before submitting. Some items have quantity greater than available stock.',
                confirmButtonText: 'OK',
            });
            return false;
        }
        
        return true;
    }
    
    // Initialize on page load
    $(document).ready(function() {
        $('#client_num_select').select2({
            placeholder: "Search or type a number",
            allowClear: true,
            tags: true,
            tokenSeparators: [',', ' '],
            width: '100%',
            createTag: function(params) {
                if (params.term.trim() === '') {
                    return null;
                }
                
                return {
                    id: params.term,
                    text: params.term
                };
            }
        });     
        
        document.getElementById('invoice_date').valueAsDate = new Date();
        document.getElementById('due_date').valueAsDate = new Date();
        
        document.getElementById('discount_type').addEventListener('change', function() {
            document.getElementById('discount').readOnly = !this.value;
            calculateTotal();
        });
        
        // Add form submission handler
        document.querySelector('form').addEventListener('submit', validateForm);
    });
    
    $(document).ready(function () {
        toggleTaxes();

        $('#gst').on('change', function () {
            toggleTaxes();
        });
    });
    
    $(document).ready(function () {
    let existingClientNumbers = $("#client_num_select option").map(function () {
        return $(this).val();
    }).get();

    $(document).ready(function () {
    let existingClientNumbers = $("#client_num_select option").map(function () {
        return $(this).val();
    }).get();

    $("#client_num_select").on("change", function () {
        let selectedNumbers = $(this).val() || [];
        let errorElement = $("#client_num_error");
        
        // Check if empty
        if (selectedNumbers.length === 0) {
            errorElement.text("Please select or enter a client number").show();
            return;
        } else {
            errorElement.hide();
        }

        let hasNewNumber = selectedNumbers.some(num => !existingClientNumbers.includes(num));

        if (hasNewNumber) {
            $("#client_name").prop("required", true);
            $("#client_name_error").text("Please enter Client Name").show();
        } else {
            $("#client_name").prop("required", false); 
            $("#client_name_error").hide();
        }
    });

    $('form').on('submit', function(e) {
        let selectedNumbers = $("#client_num_select").val() || [];
        let errorElement = $("#client_num_error");
        
        if (selectedNumbers.length === 0) {
            errorElement.text("Please select or enter a client number").show();
            e.preventDefault();
            
            // Scroll to the error
            $('html, body').animate({
                scrollTop: errorElement.offset().top - 100
            }, 500);
            
            return false;
        }
        return true;
    });

    $("#client_name").on("input", function () {
        if ($(this).val().trim() !== "") {
            $("#client_name_error").hide();
        }
    });
});    
});
</script>
@endpush