@extends('admin.layouts.inventory')

@section('title', $purchaseOrder->document_number)

@section('content')
@php
    $statusValue = $purchaseOrder->status?->value ?? $purchaseOrder->status;
    $lineTotal = fn ($line) => $line->unit_price !== null ? (float) $line->qty * (float) $line->unit_price : null;
    $grandTotal = $purchaseOrder->lines->sum(fn ($line) => $lineTotal($line) ?? 0);
    $hasPricing = $purchaseOrder->lines->contains(fn ($line) => $line->unit_price !== null);
@endphp

<div class="document-show">
    @include('admin.inventory.partials.document_show_header', [
        'title' => $purchaseOrder->document_number,
        'subtitle' => 'Purchase order',
        'back' => route('admin.inventory.purchase-orders.index'),
        'status' => $purchaseOrder->status,
        'actions' => $statusValue === 'draft'
            ? '<a href="'.route('admin.inventory.purchase-orders.edit', $purchaseOrder).'" class="btn btn-secondary">Edit</a>'
            : ($statusValue === 'completed'
                ? '<a href="'.route('admin.inventory.purchase-orders.pdf', $purchaseOrder).'" class="btn btn-secondary">Download PDF</a>'
                : null),
    ])

    <div class="box doc-meta-card">
        <div class="doc-meta-grid">
            <div class="doc-meta-item">
                <span class="doc-meta-label">Supplier</span>
                <span class="doc-meta-value">{{ $purchaseOrder->supplier?->name ?? '—' }}</span>
            </div>
            <div class="doc-meta-item">
                <span class="doc-meta-label">Transaction date</span>
                <span class="doc-meta-value">{{ $purchaseOrder->transaction_date?->format('d M Y') ?? '—' }}</span>
            </div>
            <div class="doc-meta-item">
                <span class="doc-meta-label">Effective date</span>
                <span class="doc-meta-value">{{ $purchaseOrder->effective_date?->format('d M Y') ?? '—' }}</span>
            </div>
            @if ($purchaseOrder->reference_number)
                <div class="doc-meta-item">
                    <span class="doc-meta-label">Reference</span>
                    <span class="doc-meta-value">
                        {{ $purchaseOrder->reference_number }}
                        @if ($purchaseOrder->reference_date)
                            <span class="doc-meta-sub">({{ $purchaseOrder->reference_date->format('d M Y') }})</span>
                        @endif
                    </span>
                </div>
            @endif
            @if ($purchaseOrder->project)
                <div class="doc-meta-item">
                    <span class="doc-meta-label">Project</span>
                    <span class="doc-meta-value">{{ $purchaseOrder->project->customer_name }}</span>
                </div>
            @endif
            @if ($purchaseOrder->projectRevision)
                <div class="doc-meta-item">
                    <span class="doc-meta-label">Revision</span>
                    <span class="doc-meta-value"><code>{{ $purchaseOrder->projectRevision->document_number }}</code></span>
                </div>
            @endif
        </div>

        @if ($purchaseOrder->remarks)
            <div class="doc-remarks">
                <span class="doc-meta-label">Remarks</span>
                <p>{{ $purchaseOrder->remarks }}</p>
            </div>
        @endif
    </div>

    <div class="box doc-section">
        <div class="doc-section-header">
            <h3>Line items</h3>
            <span class="muted">{{ $purchaseOrder->lines->count() }} {{ str('item')->plural($purchaseOrder->lines->count()) }}</span>
        </div>

        @if ($purchaseOrder->lines->isEmpty())
            <p class="empty">No line items on this purchase order.</p>
        @else
            <div class="table-wrap">
                <table class="doc-lines-table">
                    <thead>
                        <tr>
                            <th>#</th>
                            <th>SKU / Item</th>
                            <th class="num">Qty</th>
                            <th>Unit</th>
                            <th class="num">Base qty</th>
                            @if ($hasPricing)
                                <th class="num">Unit price</th>
                                <th class="num">Line total</th>
                            @endif
                        </tr>
                    </thead>
                    <tbody>
                        @foreach ($purchaseOrder->lines as $line)
                            @php
                                $item = $line->sku?->variant?->item;
                                $total = $lineTotal($line);
                            @endphp
                            <tr>
                                <td class="col-line-no">{{ $line->line_number }}</td>
                                <td>
                                    <div class="sku-cell-main"><code>{{ $line->sku?->sku_code }}</code></div>
                                    @if ($item)
                                        <div class="sku-cell-sub">
                                            {{ $item->name }}
                                            @if ($line->sku?->variant?->variant)
                                                — {{ $line->sku->variant->variant }}
                                            @endif
                                        </div>
                                    @endif
                                </td>
                                <td class="num">@qty($line->qty)</td>
                                <td>{{ $line->unit?->symbol ?? $line->unit?->name ?? '—' }}</td>
                                <td class="num muted">@qty($line->qty_in_base_uom, $line->sku)</td>
                                @if ($hasPricing)
                                    <td class="num">{{ $line->unit_price !== null ? number_format((float) $line->unit_price, 2) : '—' }}</td>
                                    <td class="num">{{ $total !== null ? number_format($total, 2) : '—' }}</td>
                                @endif
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>

            @if ($hasPricing && $grandTotal > 0)
                <div class="doc-totals">
                    <div class="doc-total-row">
                        <span class="doc-total-label">Estimated total</span>
                        <span class="doc-total-amount">₹{{ number_format($grandTotal, 2) }}</span>
                    </div>
                </div>
            @endif
        @endif
    </div>

    @if ($statusValue === 'draft')
        <div class="box doc-actions-bar">
            <p class="muted doc-actions-hint">Completing this PO locks it for goods receipt against supplier delivery.</p>
            <div class="actions">
                <a href="{{ route('admin.inventory.purchase-orders.edit', $purchaseOrder) }}" class="btn btn-secondary">Edit</a>
                <form method="post" action="{{ route('admin.inventory.purchase-orders.complete', $purchaseOrder) }}" class="inline-form">
                    @csrf
                    <button type="submit" class="btn">Complete PO</button>
                </form>
            </div>
        </div>
    @endif

    <div class="doc-attachments">
        @include('admin.inventory.partials.attachments', [
            'documentType' => $attachmentDocumentType ?? 'purchase_order',
            'documentId' => $purchaseOrder->id,
            'documentStatus' => $statusValue,
        ])
    </div>
</div>
@endsection