@extends('layouts.app')
@section('title', 'Detail Purchase Order')

@section('content')
<div class="d-flex justify-content-between align-items-center mb-3">
    <h4 class="mb-0">Purchase Order {{ $purchaseOrder->kode }}</h4>
    <div class="d-flex align-items-center gap-2">
        <a href="{{ route('purchase-orders.cetak', $purchaseOrder) }}" target="_blank" class="btn btn-sm btn-outline-secondary">
            <i class="bi bi-printer"></i> Cetak PO
        </a>
        <span class="badge bg-{{ $purchaseOrder->statusBadge() }} fs-6">{{ $purchaseOrder->statusLabel() }}</span>
    </div>
</div>

{{-- Progress alur PO --}}
<div class="card mb-4">
    <div class="card-body">
        @php
            $steps = ['dibuat' => 'PO Dibuat', 'diterima_vendor' => 'Diterima Vendor', 'diproses_vendor' => 'Diproses Vendor', 'dikirim_ke_gudang' => 'Dikirim ke Gudang', 'barang_diterima' => 'Barang Diterima'];
            $statusKeys = array_keys($steps);
            $currentIndex = array_search($purchaseOrder->status, $statusKeys);
            // status lanjutan (dikirim_ke_kapal / draft) berarti seluruh tahap di atas sudah selesai
            if ($currentIndex === false) {
                $currentIndex = count($statusKeys) - 1;
            }
        @endphp
        <div class="d-flex justify-content-between">
            @foreach($steps as $key => $label)
            <div class="text-center flex-fill">
                <div class="rounded-circle mx-auto d-flex align-items-center justify-content-center
                    {{ $loop->index <= $currentIndex ? 'bg-primary text-white' : 'bg-light text-muted' }}"
                    style="width:32px;height:32px;">
                    {{ $loop->index + 1 }}
                </div>
                <div class="small mt-1 {{ $loop->index <= $currentIndex ? 'fw-semibold' : 'text-muted' }}">{{ $label }}</div>
            </div>
            @if(!$loop->last)<div class="flex-fill border-top mt-4"></div>@endif
            @endforeach
        </div>

        @if(auth()->user()->canExecuteWarehouseFlow())
            @php $next = \App\Models\PurchaseOrder::nextStatus($purchaseOrder->status); @endphp
            @if($next)
            <form method="POST" action="{{ route('purchase-orders.update-status', $purchaseOrder) }}" class="text-center mt-3 d-inline-block me-2">
                @csrf
                <button class="btn btn-sm btn-primary">Update Status &rarr; {{ $steps[$next] }}</button>
            </form>
            @endif
            @if($purchaseOrder->bisaDiRevertStatus())
            <form method="POST" action="{{ route('purchase-orders.revert-status', $purchaseOrder) }}" class="text-center mt-3 d-inline-block"
                onsubmit="return confirm('Kembalikan status PO ke langkah sebelumnya? Gunakan ini kalau salah pencet tombol Update Status.');">
                @csrf
                <button class="btn btn-sm btn-outline-secondary"><i class="bi bi-arrow-counterclockwise"></i> Kembalikan Status</button>
            </form>
            @endif
            @if($purchaseOrder->status == 'dikirim_ke_gudang' && $purchaseOrder->items->contains(fn($i) => !$i->isPendingVendor()))
            <div class="text-center mt-3">
                <a href="{{ route('goods-receipts.create', $purchaseOrder) }}" class="btn btn-sm btn-success">
                    <i class="bi bi-box-seam"></i> Terima Barang (Barang Masuk)
                </a>
            </div>
            @endif

            @if($purchaseOrder->adaItemPendingVendor() && !$purchaseOrder->isDraft())
            <div class="alert alert-warning text-center mt-3 mb-0">
                <i class="bi bi-hourglass-split"></i> <strong>Ada barang yang masih menunggu vendor (pending).</strong>
                Barang lain yang sudah ada vendornya tetap bisa diproses &amp; dikirim duluan; lengkapi vendor barang tersebut
                di bagian "Barang Menunggu Vendor (PO Menyusul)" di bawah.
            </div>
            @endif

            @if($purchaseOrder->dariPR() && !$purchaseOrder->isDraft())
            @if($purchaseOrder->adaItemSiapDikirim())
            <div class="text-center mt-3">
                @if($purchaseOrder->purchaseRequest->isFullyApproved())
                <a href="{{ route('goods-deliveries.create', $purchaseOrder) }}" class="btn btn-sm btn-warning">
                    <i class="bi bi-truck"></i> Kirim ke Kapal
                </a>
                @else
                <button type="button" class="btn btn-sm btn-warning" disabled
                    title="Belum bisa dikirim ke kapal - approval PR belum lengkap ({{ $purchaseOrder->purchaseRequest->ringkasanApproval() }})">
                    <i class="bi bi-truck"></i> Kirim ke Kapal (menunggu approval {{ $purchaseOrder->purchaseRequest->ringkasanApproval() }})
                </button>
                @endif
                <div class="form-text">Barang boleh dikirim sebagian (tidak harus lengkap) &mdash; sisanya bisa dikirim menyusul.</div>
            </div>
            @elseif(!$purchaseOrder->sudahLengkapTerkirim() && $purchaseOrder->goodsDeliveries->isNotEmpty())
            <div class="alert alert-danger text-center mt-3 mb-0">
                <i class="bi bi-bell"></i> <strong>Reminder:</strong> pengiriman ke kapal belum lengkap, masih ada sisa barang yang belum terkirim
                (menunggu diterima gudang dan/atau menunggu vendor).
            </div>
            @endif
            @if($purchaseOrder->sudahLengkapTerkirim() && $purchaseOrder->adaPengirimanBelumDikonfirmasi())
            <div class="alert alert-primary text-center mt-3 mb-0">
                <i class="bi bi-truck"></i> Semua barang sudah dikirim ke kapal. Menunggu konfirmasi "Barang Sampai di Kapal" pada halaman
                <a href="{{ route('purchase-requests.show', $purchaseOrder->purchase_request_id) }}">Purchase Request {{ $purchaseOrder->purchaseRequest->kode }}</a>.
            </div>
            @endif
            @endif

            @if($purchaseOrder->status == 'draft')
            <div class="alert alert-dark text-center mt-3 mb-0">
                <i class="bi bi-archive"></i> PO ini sudah selesai dan diarsipkan sebagai <strong>Draft</strong>
                @if($purchaseOrder->draft_at) sejak {{ $purchaseOrder->draft_at->format('d M Y H:i') }} @endif.
                Lihat halaman <a href="{{ route('laporan.index') }}">Laporan</a> untuk daftar lengkap.
            </div>
            @endif
        @endif
    </div>
</div>

<div class="row g-3 mb-3">
    <div class="col-md-4"><div class="card p-3"><div class="text-muted small">PR Terkait</div><div class="fw-semibold">
        @if($purchaseOrder->purchase_request_id)
            <a href="{{ route('purchase-requests.show', $purchaseOrder->purchase_request_id) }}">{{ $purchaseOrder->purchaseRequest->kode }}</a>
        @else
            <span class="badge bg-secondary">Langsung (Tanpa PR)</span>
        @endif
    </div></div></div>
    <div class="col-md-4"><div class="card p-3"><div class="text-muted small">Vendor</div><div class="fw-semibold">{{ $purchaseOrder->vendorNames() }} @if($purchaseOrder->isMultiVendor())<span class="badge bg-info">Multi-Vendor</span>@endif</div></div></div>
    <div class="col-md-4"><div class="card p-3"><div class="text-muted small">Dibuat Oleh</div><div class="fw-semibold">{{ $purchaseOrder->pembuat->name }}</div></div></div>
</div>

@if($purchaseOrder->catatan)
<div class="alert alert-light border">{{ $purchaseOrder->catatan }}</div>
@endif

<div class="card mb-4">
    <div class="card-header bg-white fw-semibold">Item Purchase Order</div>
    <div class="table-responsive">
        <table class="table mb-0 align-middle">
            <thead class="table-light"><tr><th>Nama Barang</th><th>Part Number</th><th>Vendor</th><th>Qty</th><th>Satuan</th><th>Harga Satuan</th><th>Subtotal</th>
                @if($purchaseOrder->dariPR())<th>Diterima</th><th>Terkirim</th><th>Sisa</th>@endif
            </tr></thead>
            <tbody>
            @forelse($purchaseOrder->itemsSudahAdaVendor() as $item)
                <tr>
                    <td>{{ $item->nama_barang }}</td>
                    <td>{{ $item->part_number ?: '-' }}</td>
                    <td>{{ $item->vendor->nama ?? '-' }}</td>
                    <td>{{ $item->qty }}</td>
                    <td>{{ $item->satuan }}</td>
                    <td>Rp {{ number_format($item->harga_satuan, 0, ',', '.') }}</td>
                    <td>Rp {{ number_format($item->harga_satuan * $item->qty, 0, ',', '.') }}</td>
                    @if($purchaseOrder->dariPR())
                    <td>{{ $item->qty_diterima }}</td>
                    <td>{{ $item->qty_terkirim }}</td>
                    <td>
                        @if($item->sisaQty() > 0)
                            <span class="badge bg-danger">{{ $item->sisaQty() }}</span>
                        @else
                            <span class="badge bg-success">Lengkap</span>
                        @endif
                    </td>
                    @endif
                </tr>
            @empty
                <tr><td colspan="10" class="text-center text-muted py-3">Belum ada barang dengan vendor pada PO ini. Lihat bagian "Barang Menunggu Vendor" di bawah.</td></tr>
            @endforelse
            </tbody>
        </table>
    </div>
</div>

@if($purchaseOrder->itemsPendingVendor()->isNotEmpty())
<div class="card mb-4 border-warning">
    <div class="card-header bg-warning-subtle fw-semibold">
        <i class="bi bi-hourglass-split"></i> Barang Menunggu Vendor (PO Menyusul)
    </div>
    <div class="card-body pb-2">
        <p class="text-muted small mb-3">
            Barang di bawah ini <strong>belum ditentukan vendornya</strong> sehingga belum masuk ke tabel Item Purchase Order
            di atas, belum tercetak di PO, belum bisa diterima gudang, dan belum bisa dikirim ke kapal. Isi vendornya untuk
            memproses barang ini menyusul &mdash; tetap pada <strong>PO {{ $purchaseOrder->kode }}</strong> ini, tidak perlu
            membuat PO baru.
        </p>
    </div>
    <div class="table-responsive">
        <table class="table mb-0 align-middle">
            <thead class="table-light"><tr><th>Nama Barang</th><th>Part Number</th><th>Qty</th><th>Satuan</th>
                @if(auth()->user()->canExecuteWarehouseFlow() && !$purchaseOrder->isDraft())<th style="width:280px;">Tentukan Vendor</th>@endif
            </tr></thead>
            <tbody>
            @foreach($purchaseOrder->itemsPendingVendor() as $item)
                <tr>
                    <td>{{ $item->nama_barang }}</td>
                    <td>{{ $item->part_number ?: '-' }}</td>
                    <td>{{ $item->qty }}</td>
                    <td>{{ $item->satuan }}</td>
                    @if(auth()->user()->canExecuteWarehouseFlow() && !$purchaseOrder->isDraft())
                    <td>
                        <form method="POST" action="{{ route('purchase-orders.items.update-vendor', [$purchaseOrder, $item]) }}" class="d-flex gap-1">
                            @csrf
                            <input type="text" name="vendor" class="form-control form-control-sm" list="vendorOptionsShow" placeholder="Nama vendor" required>
                            <button class="btn btn-sm btn-outline-primary">Set</button>
                        </form>
                    </td>
                    @endif
                </tr>
            @endforeach
            </tbody>
        </table>
    </div>
</div>
@endif

<datalist id="vendorOptionsShow">
    @foreach(\App\Models\Vendor::orderBy('nama')->pluck('nama') as $namaVendor)
        <option value="{{ $namaVendor }}">
    @endforeach
</datalist>

@if($purchaseOrder->goodsReceipts->isNotEmpty())
<div class="card">
    <div class="card-header bg-white fw-semibold">Riwayat Berita Acara Penerimaan</div>
    <div class="card-body">
        @foreach($purchaseOrder->goodsReceipts as $receipt)
        <div class="mb-3 pb-3 {{ !$loop->last ? 'border-bottom' : '' }}">
            <p class="mb-1"><strong>Kode:</strong> {{ $receipt->kode }}<br>
            <strong>Diterima oleh:</strong> {{ $receipt->penerima->name }}<br>
            <strong>Tanggal:</strong> {{ \Carbon\Carbon::parse($receipt->tanggal_terima)->format('d M Y') }}</p>
            <ul class="small mb-1">
                @foreach($receipt->items as $ri)
                    <li>{{ $ri->nama_barang }}: {{ $ri->qty }} {{ $ri->satuan }}</li>
                @endforeach
            </ul>
            @if($receipt->berita_acara_path)
            <a href="{{ Storage::url($receipt->berita_acara_path) }}" target="_blank" class="btn btn-sm btn-outline-secondary">Lihat Dokumen</a>
            @endif
        </div>
        @endforeach
    </div>
</div>
@endif
@endsection