@foreach( $variations as $variation)
    <tr data-row-index="{{ $row_count }}" data-has-subunits="{{ !empty($sub_units) ? 1 : 0 }}" data-base-unit-name="{{ $product->unit->short_name }}" @if(!empty($purchase_order_line)) data-purchase_order_id="{{$purchase_order_line->transaction_id}}" @endif @if(!empty($purchase_requisition_line)) data-purchase_requisition_id="{{$purchase_requisition_line->transaction_id}}" @endif>
        <td><span class="sr_number"></span></td>
        <td>
            {{ $product->name }} ({{$variation->sub_sku}})
            @if( $product->type == 'variable' )
                <br/>
                (<b>{{ $variation->product_variation->name }}</b> : {{ $variation->name }})
            @endif
            @if($product->enable_stock == 1)
                <br>
                <small class="text-muted" style="white-space: nowrap;">@lang('report.current_stock'): @if(!empty($variation->variation_location_details->first())) {{@num_format($variation->variation_location_details->first()->qty_available)}} @else 0 @endif {{ $product->unit->short_name }}</small>
            @endif
            
        </td>
        <td>
            @if(!empty($purchase_order_line))
                {!! Form::hidden('purchases[' . $row_count . '][purchase_order_line_id]', $purchase_order_line->id ); !!}
            @endif

            @if(!empty($purchase_requisition_line))
                {!! Form::hidden('purchases[' . $row_count . '][purchase_requisition_line_id]', $purchase_requisition_line->id ); !!}
            @endif

            {!! Form::hidden('purchases[' . $row_count . '][product_id]', $product->id ); !!}
            {!! Form::hidden('purchases[' . $row_count . '][variation_id]', $variation->id , ['class' => 'hidden_variation_id']); !!}

            {{-- R3: when a store GRN row was seeded from the warehouse's dispatched
                 batch, carry the source warehouse purchase_line so the store's
                 received stock is linked back to the exact warehouse batch. --}}
            @if(!empty(($dispatch_batch ?? null)['source_purchase_line_id']))
                {!! Form::hidden('purchases[' . $row_count . '][source_purchase_line_id]', $dispatch_batch['source_purchase_line_id']); !!}
            @endif

            @php
                $check_decimal = 'false';
                if($product->unit->allow_decimal == 0){
                    $check_decimal = 'true';
                }
                $currency_precision = session('business.currency_precision', 2);
                $quantity_precision = session('business.quantity_precision', 2);

                $quantity_value = !empty($purchase_order_line) ? $purchase_order_line->quantity : 1;

                $quantity_value = !empty($purchase_requisition_line) ? $purchase_requisition_line->quantity - $purchase_requisition_line->po_quantity_purchased : $quantity_value;
                $max_quantity = !empty($purchase_order_line) ? $purchase_order_line->quantity - $purchase_order_line->po_quantity_purchased - $purchase_order_line->po_quantity_damaged - $purchase_order_line->po_quantity_lost : 0;

                $max_quantity = !empty($purchase_requisition_line) ? $purchase_requisition_line->quantity - $purchase_requisition_line->po_quantity_purchased : $max_quantity;

                $quantity_value = !empty($imported_data) ? $imported_data['quantity'] : $quantity_value;

                // MULTI-BATCH GRN: when one PO line was dispatched from several
                // batches, purchase_order_lines.blade.php renders one row PER BATCH
                // and passes that batch's own quantity here. Each row then carries
                // its own lot / expiry / manufacturer, so the store records the real
                // split instead of the whole quantity under the first lot.
                $quantity_value = isset($batch_quantity_override) ? $batch_quantity_override : $quantity_value;

                // Figure out the pre-selected unit here (ahead of the <select>
                // markup below) so the max-value rule can also be expressed in
                // BASE units - the unit dropdown's change handler needs that to
                // rescale the rule correctly if the user switches units, since
                // $max_quantity above is already in the pre-selected unit's
                // terms (the PO/requisition line was converted to that unit by
                // the controller).
                $_line_obj = null;
                if (!empty($purchase_order_line)) {
                    $_line_obj = $purchase_order_line;
                } elseif (!empty($purchase_requisition_line)) {
                    $_line_obj = $purchase_requisition_line;
                } elseif (!empty($purchase_line)) {
                    $_line_obj = $purchase_line;
                }

                $_preselect_purchase = null;
                if (!empty($sub_units)) {
                    if (!empty($_line_obj) && !empty($_line_obj->sub_unit_id) && isset($sub_units[$_line_obj->sub_unit_id])) {
                        $_preselect_purchase = $_line_obj->sub_unit_id;
                    } elseif (empty($imported_data) && !empty($product->default_purchase_sub_unit_id) && isset($sub_units[$product->default_purchase_sub_unit_id])) {
                        $_preselect_purchase = $product->default_purchase_sub_unit_id;
                    } else {
                        $_first = array_key_first($sub_units);
                        $_preselect_purchase = ($_first !== null) ? $_first : null;
                    }
                }

                $_preselect_multiplier = (!empty($_preselect_purchase) && isset($sub_units[$_preselect_purchase]))
                    ? ($sub_units[$_preselect_purchase]['multiplier'] ?? 1)
                    : 1;
                $max_quantity_base = $max_quantity * $_preselect_multiplier;
            @endphp

            <input type="text"
                name="purchases[{{$row_count}}][quantity]"
                value="{{@format_quantity($quantity_value)}}"
                class="form-control input-sm purchase_quantity input_number mousetrap"
                required
                data-rule-abs_digit={{$check_decimal}}
                data-msg-abs_digit="{{__('lang_v1.decimal_value_not_allowed')}}"
                @if(!empty($max_quantity))
                    data-rule-max-value="{{$max_quantity}}"
                    data-msg-max-value="{{__('lang_v1.max_quantity_quantity_allowed', ['quantity' => $max_quantity])}}"
                    data-max-quantity-base="{{$max_quantity_base}}"
                @endif
            >


            <input type="hidden" class="base_unit_cost" value="{{$variation->default_purchase_price}}">
            <input type="hidden" class="base_unit_selling_price" value="{{$variation->sell_price_inc_tax}}">

            <input type="hidden" name="purchases[{{$row_count}}][product_unit_id]" value="{{$product->unit->id}}">
            @if(!empty($sub_units))
                @php
                    // $_preselect_purchase was already computed above (needed
                    // there to convert $max_quantity into base-unit terms too).
                    // Rows whose prices were prefilled from a negotiated
                    // source (PO lines, imported CSV costs) must not have
                    // them recomputed from the product's default price
                    // when the pre-selected unit is applied on insert.
                    $_skip_price_sync = (!empty($purchase_order_line) || !empty($imported_data)) ? 1 : 0;
                @endphp
                <br>
                <select name="purchases[{{$row_count}}][sub_unit_id]" class="form-control input-sm sub_unit" @if($_skip_price_sync) data-skip_price_sync="1" @endif>
                    @foreach($sub_units as $key => $value)
                        <option value="{{$key}}" data-multiplier="{{$value['multiplier']}}" data-allow_decimal="{{$value['allow_decimal']}}" @if($_preselect_purchase == $key) selected @endif>
                            {{$value['name']}}
                        </option>
                    @endforeach
                </select>
            @else
                {{ $product->unit->short_name }}
            @endif

            @if(!empty($product->second_unit))
                @php
                    $secondary_unit_quantity = !empty($purchase_requisition_line) ? $purchase_requisition_line->secondary_unit_quantity : "";
                @endphp
                <br>
                <span style="white-space: nowrap;">
                @lang('lang_v1.quantity_in_second_unit', ['unit' => $product->second_unit->short_name])*:</span><br>
                <input type="text" 
                name="purchases[{{$row_count}}][secondary_unit_quantity]" 
                @if($secondary_unit_quantity !== '')value="{{@format_quantity($secondary_unit_quantity)}}" @endif
                class="form-control input-sm input_number"
                required>
            @endif
        </td>
        <td class="add_without_price_hide">
            @php
                $pp_without_discount = !empty($purchase_order_line) ? $purchase_order_line->pp_without_discount/$purchase_order->exchange_rate : $variation->default_purchase_price;

                $discount_percent = !empty($purchase_order_line) ? $purchase_order_line->discount_percent : 0;

                $purchase_price = !empty($purchase_order_line) ? $purchase_order_line->purchase_price/$purchase_order->exchange_rate : $variation->default_purchase_price;

                $tax_id = !empty($purchase_order_line) ? $purchase_order_line->tax_id : $product->tax;

                $tax_id = !empty($imported_data['tax_id']) ? $imported_data['tax_id'] : $tax_id;

                $pp_without_discount = !empty($imported_data['unit_cost_before_discount']) ? $imported_data['unit_cost_before_discount'] : $pp_without_discount;

                $discount_percent = !empty($imported_data['discount_percent']) ? $imported_data['discount_percent'] : $discount_percent;
            @endphp
            {!! Form::text('purchases[' . $row_count . '][pp_without_discount]',
            number_format($pp_without_discount, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator), ['class' => 'form-control input-sm purchase_unit_cost_without_discount input_number', 'required']); !!}

            @if(!empty($last_purchase_line))
                @php
                    // The stored last-purchase price is per BASE unit;
                    // scale it to the pre-selected sub-unit so the hint
                    // is comparable with the cost input beside it.
                    $_prev_price_multiplier = 1;
                    if (!empty($sub_units) && isset($_preselect_purchase) && isset($sub_units[$_preselect_purchase])) {
                        $_prev_price_multiplier = $sub_units[$_preselect_purchase]['multiplier'] ?? 1;
                    }
                @endphp
                <br>
                <small class="text-muted">@lang('lang_v1.prev_unit_price'): <span class="prev_unit_price_display" data-base_price="{{$last_purchase_line->pp_without_discount}}">@format_currency($last_purchase_line->pp_without_discount * $_prev_price_multiplier)</span></small>
            @endif
        </td>
        <td class="add_without_price_hide">
            {!! Form::text('purchases[' . $row_count . '][discount_percent]', number_format($discount_percent, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator), ['class' => 'form-control input-sm inline_discounts input_number', 'required']); !!}

            @if(!empty($last_purchase_line))
                <br>
                <small class="text-muted">
                    @lang('lang_v1.prev_discount'): 
                    {{@num_format($last_purchase_line->discount_percent)}}%
                </small>
            @endif
        </td>
        <td class="add_without_price_hide">
            {!! Form::text('purchases[' . $row_count . '][purchase_price]',
            number_format($purchase_price, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator), ['class' => 'form-control input-sm purchase_unit_cost input_number', 'required']); !!}
        </td>
        <td class="{{$hide_tax}} add_without_price_hide">
            <span class="row_subtotal_before_tax display_currency">0</span>
            <input type="hidden" class="row_subtotal_before_tax_hidden" value=0>
        </td>
        <td class="{{$hide_tax}} add_without_price_hide">
            <div class="input-group">
                <select name="purchases[{{ $row_count }}][purchase_line_tax_id]" class="form-control select2 input-sm purchase_line_tax_id" placeholder="'Please Select'">
                    <option value="" data-tax_amount="0" @if( $hide_tax == 'hide' )
                    selected @endif >@lang('lang_v1.none')</option>
                    @foreach($taxes as $tax)
                        <option value="{{ $tax->id }}" data-tax_amount="{{ $tax->amount }}" @if( $tax_id == $tax->id && $hide_tax != 'hide') selected @endif >{{ $tax->name }}</option>
                    @endforeach
                </select>
                {!! Form::hidden('purchases[' . $row_count . '][item_tax]', 0, ['class' => 'purchase_product_unit_tax']); !!}
                <span class="input-group-addon purchase_product_unit_tax_text">
                    0.00</span>
            </div>
        </td>
        <td class="{{$hide_tax}} add_without_price_hide">
            @php
                $dpp_inc_tax = number_format($variation->dpp_inc_tax, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator);
                if($hide_tax == 'hide'){
                    $dpp_inc_tax = number_format($variation->default_purchase_price, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator);
                }

                $dpp_inc_tax = !empty($purchase_order_line) ? number_format($purchase_order_line->purchase_price_inc_tax/$purchase_order->exchange_rate, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator) : $dpp_inc_tax;

            @endphp
            {!! Form::text('purchases[' . $row_count . '][purchase_price_inc_tax]', $dpp_inc_tax, ['class' => 'form-control input-sm purchase_unit_cost_after_tax input_number', 'required']); !!}
        </td>
        <td class="add_without_price_hide">
            <span class="row_subtotal_after_tax display_currency">0</span>
            <input type="hidden" class="row_subtotal_after_tax_hidden" value=0>
        </td>
        <td class="add_without_price_hide @if(!session('business.enable_editing_product_from_purchase') || !empty($is_purchase_order)) hide @endif">
            {!! Form::text('purchases[' . $row_count . '][profit_percent]', number_format($variation->profit_percent, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator), ['class' => 'form-control input-sm input_number profit_percent', 'required']); !!}
        </td>
        @if(empty($is_purchase_order))
        <td class="add_without_price_hide">
            @if(session('business.enable_editing_product_from_purchase'))
                {!! Form::text('purchases[' . $row_count . '][default_sell_price]', number_format($variation->sell_price_inc_tax, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator), ['class' => 'form-control input-sm input_number default_sell_price', 'required']); !!}
            @else
                {{ number_format($variation->sell_price_inc_tax, $currency_precision, $currency_details->decimal_separator, $currency_details->thousand_separator)}}
            @endif
        </td>
        @if(session('business.enable_lot_number'))
            @php
                // R3 prefill: imported CSV value first, else the warehouse's
                // dispatched batch (store GRN from a warehouse-fulfilled PO).
                $lot_number = !empty($imported_data['lot_number'])
                    ? $imported_data['lot_number']
                    : (!empty(($dispatch_batch ?? null)['lot_number']) ? $dispatch_batch['lot_number'] : null);
            @endphp
            <td>
                {{-- Supplier warehouse (pharma GRN): lot is mandatory. Stores: unchanged. --}}
                {!! Form::text('purchases[' . $row_count . '][lot_number]', $lot_number, array_merge(['class' => 'form-control input-sm'], session('business.is_supplier_warehouse') ? ['required' => 'required'] : [])); !!}
            </td>
            @php
                // Batch manufacturer, defaulted then left editable — same idiom as
                // lot/expiry above. Preference order:
                //   1. imported CSV value
                //   2. the warehouse's dispatched batch (store GRN, R3 prefill)
                //   3. the PO line this GRN row came from
                //   4. the product's primary manufacturer
                $batch_manufacturer_id = !empty($imported_data['manufacturer_id'])
                    ? $imported_data['manufacturer_id']
                    : (!empty(($dispatch_batch ?? null)['manufacturer_id'])
                        ? $dispatch_batch['manufacturer_id']
                        : (!empty($purchase_order_line->manufacturer_id)
                            ? $purchase_order_line->manufacturer_id
                            : $product->manufacturer_id));
                $row_manufacturers = $product->selectableManufacturers();
            @endphp
            <td>
                @if($row_manufacturers->isNotEmpty())
                    {{-- Mandatory on a supplier WAREHOUSE, exactly like lot number and
                         expiry above: the batch's maker must travel to the store and
                         onto the patient's invoice, so it cannot be left blank at the
                         point it is captured. Stores inherit it from the dispatch
                         prefill, so it stays optional there. --}}
                    {!! Form::select('purchases[' . $row_count . '][manufacturer_id]', $row_manufacturers, $batch_manufacturer_id,
                        array_merge(['class' => 'form-control input-sm', 'placeholder' => __('messages.please_select')],
                        session('business.is_supplier_warehouse') ? ['required' => 'required'] : [])); !!}
                @else
                    <div class="text-center"><small class="text-muted">@lang('product.not_applicable')</small></div>
                @endif
            </td>
        @endif
        @if(session('business.enable_product_expiry'))
            <td style="text-align: left;">

                {{-- Maybe this condition for checkin expiry date need to be removed --}}
                @php
                    $expiry_period_type = !empty($product->expiry_period_type) ? $product->expiry_period_type : 'month';
                @endphp
                @if(!empty($expiry_period_type))
                <input type="hidden" class="row_product_expiry" value="{{ $product->expiry_period }}">
                <input type="hidden" class="row_product_expiry_type" value="{{ $expiry_period_type }}">

                @if(session('business.expiry_type') == 'add_manufacturing' || session('business.is_supplier_warehouse'))
                    {{-- Expose Mfg date on a supplier warehouse too (pharma), even
                         though warehouses use expiry_type='add_expiry'. --}}
                    @php
                        $hide_mfg = false;
                    @endphp
                @else
                    @php
                        $hide_mfg = true;
                    @endphp
                @endif

                @php
                    // R3 prefill: imported CSV value first, else the warehouse's
                    // dispatched batch, formatted to the business date format.
                    $_df = session('business.date_format') ?: 'm/d/Y';
                    $mfg_date = !empty($imported_data['mfg_date']) ? $imported_data['mfg_date']
                        : (!empty(($dispatch_batch ?? null)['mfg_date']) ? \Carbon\Carbon::parse($dispatch_batch['mfg_date'])->format($_df) : null);
                    $exp_date = !empty($imported_data['exp_date']) ? $imported_data['exp_date']
                        : (!empty(($dispatch_batch ?? null)['exp_date']) ? \Carbon\Carbon::parse($dispatch_batch['exp_date'])->format($_df) : null);
                @endphp

                <b class="@if($hide_mfg) hide @endif"><small>@lang('product.mfg_date'):</small></b>
                <div class="input-group @if($hide_mfg) hide @endif">
                    <span class="input-group-addon">
                        <i class="fa fa-calendar"></i>
                    </span>
                    {!! Form::text('purchases[' . $row_count . '][mfg_date]', $mfg_date, ['class' => 'form-control input-sm expiry_datepicker mfg_date', 'readonly']); !!}
                </div>
                <b><small>@lang('product.exp_date'):</small></b>
                <div class="input-group">
                    <span class="input-group-addon">
                        <i class="fa fa-calendar"></i>
                    </span>
                    {{-- Supplier warehouse (pharma GRN): expiry is mandatory. Stores: unchanged. --}}
                    {!! Form::text('purchases[' . $row_count . '][exp_date]', $exp_date, array_merge(['class' => 'form-control input-sm expiry_datepicker exp_date', 'readonly'], session('business.is_supplier_warehouse') ? ['required' => 'required'] : [])); !!}
                </div>
                @else
                <div class="text-center">
                    @lang('product.not_applicable')
                </div>
                @endif
            </td>
        @endif
        @endif
        {{-- PURCHASE ORDER rows: choose the manufacturer to order THIS product
             from. Independent of the requisition — the same medicine can be made
             by several manufacturers, so the maker is picked fresh on every PO,
             limited to those mapped to the product (product_manufacturers).
             On save the PO is split into one PO per manufacturer. --}}
        @if(!empty($is_purchase_order) && session('business.is_supplier_warehouse'))
            @php
                $row_manufacturers = $product->selectableManufacturers();
            @endphp
            <td>
                @if($row_manufacturers->isNotEmpty())
                    {!! Form::select('purchases[' . $row_count . '][manufacturer_id]', $row_manufacturers, $product->manufacturer_id, ['class' => 'form-control input-sm po_line_manufacturer', 'placeholder' => __('messages.please_select'), 'required']); !!}
                @else
                    <span class="text-danger"><small>@lang('lang_v1.no_manufacturer_mapped')</small></span>
                @endif
            </td>
        @endif
        @if(session('business.enable_damage_loss_tracking'))
            <td class="text-center">
                <button type="button" class="btn btn-xs btn-default damage_loss_btn" data-row="{{ $row_count }}" title="@lang('purchase.mark_damage_loss')">
                    <i class="fa fa-exclamation-triangle" aria-hidden="true"></i>
                </button>
                <br>
                <small class="damage_loss_badge text-danger" style="white-space:nowrap;"></small>
                {!! Form::hidden('purchases[' . $row_count . '][quantity_damaged]', 0, ['class' => 'damage_loss_qty_damaged']); !!}
                {!! Form::hidden('purchases[' . $row_count . '][quantity_lost]', 0, ['class' => 'damage_loss_qty_lost']); !!}
                {!! Form::hidden('purchases[' . $row_count . '][damage_loss_reason]', '', ['class' => 'damage_loss_reason_hidden']); !!}
                {!! Form::hidden('purchases[' . $row_count . '][damage_loss_note]', '', ['class' => 'damage_loss_note_hidden']); !!}
                {!! Form::hidden('purchases[' . $row_count . '][usable_qty]', 0, ['class' => 'damage_loss_usable_qty']); !!}
            </td>
        @endif
        
        <td><i class="fa fa-times remove_purchase_entry_row text-danger" title="Remove" style="cursor:pointer;"></i></td>
    </tr>
@endforeach

<input type="hidden" id="row_count" value="{{ $row_count }}">