@extends('layouts.app')

@section('page-title', 'Sell Product')

@section('content')
<div class="row">
    <div class="col-xl-12">
        <div class="card">
            <div class="card-header border-0 pb-0">
                <div class="d-flex align-items-center justify-content-between">
                    <h4 class="card-title mb-0">Sell Product</h4>
                    <a href="{{ route('product-sales.index') }}" class="btn btn-info btn-sm">
                        <i class="fas fa-list"></i> View Sales History
                    </a>
                </div>
            </div>
            <div class="card-body">
                @if(session('success'))
                    <div class="alert alert-success alert-dismissible fade show" role="alert">
                        {{ session('success') }}
                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                    </div>
                @endif

                <form action="{{ route('product-sales.store') }}" method="POST" id="saleForm">
                    @csrf
                    <div class="row">
                        <div class="col-md-6 mb-3">
                            <label class="form-label required">Product</label>
                            <select name="product_id" id="product_id" class="selectpicker form-select @error('product_id') is-invalid @enderror" required>
                                <option value="">Select Product</option>
                                @foreach($products as $product)
                                    <option value="{{ $product->id }}" 
                                        data-price="{{ $product->price }}" 
                                        data-stock="{{ $product->stock_quantity }}"
                                        {{ old('product_id') == $product->id ? 'selected' : '' }}>
                                        {{ $product->name }} - Rs {{ number_format($product->price, 2) }} (Stock: {{ $product->stock_quantity }})
                                    </option>
                                @endforeach
                            </select>
                            @error('product_id')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                            <small class="text-muted" id="stock-info"></small>
                        </div>
                        <div class="col-md-6 mb-3">
                            <label class="form-label required">Quantity</label>
                            <input type="number" name="quantity" id="quantity" class="form-control @error('quantity') is-invalid @enderror" 
                                placeholder="Enter quantity" value="{{ old('quantity', 1) }}" min="1" required>
                            @error('quantity')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-6 mb-3">
                            <label class="form-label">Unit Price</label>
                            <input type="text" id="unit_price" class="form-control" readonly value="Rs 0.00">
                            <small class="text-muted">Price per unit</small>
                        </div>
                        <div class="col-md-6 mb-3">
                            <label class="form-label">Total Amount</label>
                            <input type="text" id="total_amount" class="form-control fw-bold text-primary" readonly value="Rs 0.00" style="font-size: 1.2em;">
                            <small class="text-muted">Calculated automatically</small>
                        </div>
                        <div class="col-md-6 mb-3">
                            <label class="form-label">Customer Name</label>
                            <input type="text" name="customer_name" class="form-control @error('customer_name') is-invalid @enderror" 
                                placeholder="Enter customer name (optional)" value="{{ old('customer_name') }}">
                            @error('customer_name')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-6 mb-3">
                            <label class="form-label">Customer Phone</label>
                            <input type="text" name="customer_phone" class="form-control @error('customer_phone') is-invalid @enderror" 
                                placeholder="Enter customer phone (optional)" value="{{ old('customer_phone') }}">
                            @error('customer_phone')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                        <div class="col-md-12 mb-3">
                            <label class="form-label">Notes</label>
                            <textarea name="notes" class="form-control @error('notes') is-invalid @enderror" rows="3" 
                                placeholder="Enter any additional notes (optional)">{{ old('notes') }}</textarea>
                            @error('notes')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>
                    </div>
                    <div class="card-footer justify-content-end">
                        <a href="{{ route('products.index') }}" class="btn btn-danger light">Cancel</a>
                        <button type="submit" class="btn btn-success">
                            <i class="fas fa-shopping-cart"></i> Complete Sale
                        </button>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script src="{{ asset('assets/vendor/bootstrap-select/dist/js/bootstrap-select.min.js') }}"></script>
<script>
    $(document).ready(function() {
        function calculateTotal() {
            const productSelect = $('#product_id');
            const quantityInput = $('#quantity');
            const unitPriceInput = $('#unit_price');
            const totalAmountInput = $('#total_amount');
            const stockInfo = $('#stock-info');
            
            const selectedOption = productSelect.find('option:selected');
            const price = parseFloat(selectedOption.data('price')) || 0;
            const stock = parseInt(selectedOption.data('stock')) || 0;
            const quantity = parseInt(quantityInput.val()) || 0;
            
            if (productSelect.val() && price > 0) {
                unitPriceInput.val('Rs ' + price.toFixed(2));
                const total = price * quantity;
                totalAmountInput.val('Rs ' + total.toFixed(2));
                stockInfo.text('Available stock: ' + stock);
                
                if (quantity > stock) {
                    stockInfo.removeClass('text-muted').addClass('text-danger');
                    stockInfo.text('⚠️ Insufficient stock! Available: ' + stock);
                } else {
                    stockInfo.removeClass('text-danger').addClass('text-muted');
                }
            } else {
                unitPriceInput.val('Rs 0.00');
                totalAmountInput.val('Rs 0.00');
                stockInfo.text('');
            }
        }
        
        $('#product_id').on('change', calculateTotal);
        $('#quantity').on('input', calculateTotal);
        
        // Calculate on page load if values exist
        calculateTotal();
    });
</script>
@endpush