@php
    use App\Helpers\GstHelper;
    $items = $documentItems ?? collect();
    $gstIsIgst = $gstIsIgst ?? false;
    $hasDiscountCol = $items->contains(fn ($li) => (float) $li->discount_percent > 0);
    $totalTaxable = 0;
    $totalCgst = 0;
    $totalSgst = 0;
    $totalIgst = 0;
    $totalAmount = 0;
    $combinedRate = 0;
    $labelColspan = 4;
@endphp
<table class="billing-invoice-doc__items billing-invoice-doc__items--gst">
    <thead>
        <tr>
            <th class="col-no">#</th>
            <th class="col-item">{{ $docLbl['col_item'] ?? 'Item' }} &amp; {{ $docLbl['col_description'] ?? 'Description' }}</th>
            <th class="col-hsn">HSN/SAC</th>
            <th class="col-qty-uom">Qty / UoM</th>
            <th class="col-price">Price (₹)</th>
            @if($hasDiscountCol)
                <th class="col-disc">{{ $docLbl['col_discount'] ?? 'Discount' }}</th>
            @endif
            @if($gstIsIgst)
                <th class="col-igst">IGST (₹)</th>
            @else
                <th class="col-cgst">CGST (₹)</th>
                <th class="col-sgst">SGST (₹)</th>
            @endif
            <th class="col-amt">Amount (₹)</th>
        </tr>
    </thead>
    <tbody>
        @foreach($items as $i => $line)
            @php
                $lineTaxable = round((float) $line->amount - (float) $line->tax_amount, 2);
                $cgstAmt = (float) ($line->cgst_amount ?? 0);
                $sgstAmt = (float) ($line->sgst_amount ?? 0);
                $igstAmt = (float) ($line->igst_amount ?? 0);
                if ($cgstAmt + $sgstAmt + $igstAmt <= 0 && (float) $line->tax_amount > 0) {
                    $split = GstHelper::splitLineTax($lineTaxable, (float) $line->tax_rate, $gstIsIgst);
                    $cgstAmt = $split['cgst_amount'];
                    $sgstAmt = $split['sgst_amount'];
                    $igstAmt = $split['igst_amount'];
                    $cgstRate = $split['cgst_rate'];
                    $sgstRate = $split['sgst_rate'];
                    $igstRate = $split['igst_rate'];
                } else {
                    $cgstRate = (float) ($line->cgst_rate ?? 0);
                    $sgstRate = (float) ($line->sgst_rate ?? 0);
                    $igstRate = (float) ($line->igst_rate ?? 0);
                }
                $qtyDisplay = number_format($line->quantity, 0) == $line->quantity
                    ? (string) (int) $line->quantity
                    : number_format($line->quantity, 3);
                $qtyUom = trim($qtyDisplay . ($line->unit ? ' ' . $line->unit : ''));
                $totalTaxable += $lineTaxable;
                $totalCgst += $cgstAmt;
                $totalSgst += $sgstAmt;
                $totalIgst += $igstAmt;
                $totalAmount += (float) $line->amount;
                if ((float) $line->tax_rate > $combinedRate) {
                    $combinedRate = (float) $line->tax_rate;
                }
            @endphp
            <tr>
                <td>{{ $i + 1 }}</td>
                <td>
                    <span class="item-name">{{ $line->item_name }}</span>
                    @if($line->description)
                        <span class="item-desc">{{ $line->description }}</span>
                    @endif
                </td>
                <td class="num">{{ $line->hsn_sac ?: '—' }}</td>
                <td class="num col-qty-uom-cell">{{ $qtyUom ?: '—' }}</td>
                <td class="num">{{ number_format($line->rate, 2) }}</td>
                @if($hasDiscountCol)
                    <td class="num">
                        @if((float) $line->discount_percent > 0)
                            {{ rtrim(rtrim(number_format($line->discount_percent, 2), '0'), '.') }}%
                        @else
                            —
                        @endif
                    </td>
                @endif
                @if($gstIsIgst)
                    <td class="num">
                        @if($igstAmt > 0)
                            {{ number_format($igstAmt, 2) }}
                            @if($igstRate > 0)<span class="tax-pct">{{ rtrim(rtrim(number_format($igstRate, 2), '0'), '.') }}%</span>@endif
                        @else — @endif
                    </td>
                @else
                    <td class="num">
                        @if($cgstAmt > 0)
                            {{ number_format($cgstAmt, 2) }}
                            @if($cgstRate > 0)<span class="tax-pct">{{ rtrim(rtrim(number_format($cgstRate, 2), '0'), '.') }}%</span>@endif
                        @else — @endif
                    </td>
                    <td class="num">
                        @if($sgstAmt > 0)
                            {{ number_format($sgstAmt, 2) }}
                            @if($sgstRate > 0)<span class="tax-pct">{{ rtrim(rtrim(number_format($sgstRate, 2), '0'), '.') }}%</span>@endif
                        @else — @endif
                    </td>
                @endif
                <td class="num amount">{{ number_format($line->amount, 2) }}</td>
            </tr>
        @endforeach
    </tbody>
    <tfoot>
        <tr class="billing-invoice-doc__items-total-row">
            <td colspan="{{ $labelColspan }}" class="text-end fw-semibold">
                @if($combinedRate > 0)
                    Total ({{ rtrim(rtrim(number_format($combinedRate, 2), '0'), '.') }}%)
                @else
                    Total
                @endif
            </td>
            <td class="num fw-semibold">{{ number_format($totalTaxable, 2) }}</td>
            @if($hasDiscountCol)
                <td class="num"></td>
            @endif
            @if($gstIsIgst)
                <td class="num fw-semibold">{{ number_format($totalIgst, 2) }}</td>
            @else
                <td class="num fw-semibold">{{ number_format($totalCgst, 2) }}</td>
                <td class="num fw-semibold">{{ number_format($totalSgst, 2) }}</td>
            @endif
            <td class="num amount fw-semibold">{{ number_format($totalAmount, 2) }}</td>
        </tr>
    </tfoot>
</table>