@extends('layouts.app', ['title' => 'Inventur #'.$inventory->id])
@section('content')
<div class="container-fluid py-4" style="max-width:900px;">

    <div class="d-flex align-items-center justify-content-between mb-4">
        <div>
            <h4 class="fw-bold mb-0">Inventur #{{ $inventory->id }} — {{ $inventory->warehouse?->name }}</h4>
            <small class="text-muted">
                {{ $inventory->inventory_date->format('d.m.Y') }} ·
                <span class="badge bg-{{ $inventory->status === 'closed' ? 'success' : 'warning text-dark' }}">
                    {{ $inventory->status === 'closed' ? 'Abgeschlossen' : 'Offen' }}
                </span>
            </small>
        </div>
        <a href="{{ route('wms.inventory.index') }}" class="btn btn-sm btn-outline-secondary">
            <i class="bi bi-arrow-left me-1"></i>Zurück
        </a>
    </div>

    @if(session('success'))
        <div class="alert alert-success alert-dismissible fade show">{{ session('success') }}<button type="button" class="btn-close" data-bs-dismiss="alert"></button></div>
    @endif

    <div class="card border-0 shadow-sm">
        <div class="card-body p-0">
            <form method="POST" action="{{ route('wms.inventory.save', $inventory) }}">
                @csrf
                <table class="table align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th class="px-4 py-2">Artikel</th>
                            <th class="text-end">Soll (System)</th>
                            <th class="text-end" style="width:160px;">Ist (manuell)</th>
                            <th class="text-end">Differenz</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach($inventory->lines as $i => $line)
                        <tr>
                            <td class="px-4">
                                {{ $line->item?->name }}
                                <small class="text-muted">{{ $line->item?->unit?->name }}</small>
                                <input type="hidden" name="lines[{{ $i }}][fk_inventory_line_id]" value="{{ $line->id }}">
                            </td>
                            <td class="text-end">{{ number_format($line->quantity_system, 2, ',', '.') }}</td>
                            <td class="text-end">
                                @if($inventory->status === 'open')
                                <input type="number" name="lines[{{ $i }}][quantity_actual]"
                                       class="form-control form-control-sm text-end"
                                       step="0.001" min="0"
                                       value="{{ $line->quantity_actual ?? '' }}">
                                @else
                                    {{ $line->quantity_actual !== null ? number_format($line->quantity_actual, 2, ',', '.') : '—' }}
                                @endif
                            </td>
                            <td class="text-end fw-semibold">
                                @if($line->quantity_diff !== null)
                                    <span class="{{ $line->quantity_diff < 0 ? 'text-danger' : ($line->quantity_diff > 0 ? 'text-success' : 'text-muted') }}">
                                        {{ ($line->quantity_diff > 0 ? '+' : '') . number_format($line->quantity_diff, 2, ',', '.') }}
                                    </span>
                                @else — @endif
                            </td>
                        </tr>
                        @endforeach
                    </tbody>
                </table>

                @if($inventory->status === 'open')
                <div class="p-3 d-flex gap-2">
                    <button type="submit" class="btn btn-primary btn-sm">
                        <i class="bi bi-floppy me-1"></i>Ist-Bestände speichern
                    </button>
                </div>
                @endif
            </form>
        </div>
    </div>

    @if($inventory->status === 'open')
    <div class="mt-3">
        <form method="POST" action="{{ route('wms.inventory.close', $inventory) }}"
              onsubmit="return confirm('Inventur abschließen? Bestandsdifferenzen werden als Korrekturbuchungen gebucht.')">
            @csrf
            <button type="submit" class="btn btn-success btn-sm">
                <i class="bi bi-check-circle me-1"></i>Inventur abschließen & Bestände korrigieren
            </button>
        </form>
    </div>
    @endif
</div>
@endsection