@extends('admin.layouts.netgescon')

@section('title', 'Palazzine dello stabile')

@section('content')
<div class="container-fluid">
    <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center mb-4">
        <div class="mb-3 mb-md-0">
            <h1 class="h2 mb-2">
                <i class="fas fa-city me-3 text-primary"></i>
                Palazzine dello stabile
                <span class="text-muted">{{ $stabile->denominazione ?? $stabile->codice_stabile }}</span>
            </h1>
            <p class="text-muted mb-0">
                <i class="fas fa-map-marker-alt me-2"></i>
                {{ $stabile->indirizzo ?? 'Indirizzo non disponibile' }}
            </p>
        </div>
        <div class="d-flex gap-2">
            <a href="{{ route('admin.stabili.show', ['stabile' => $stabile->id]) }}" class="btn btn-outline-secondary">
                <i class="fas fa-arrow-left me-2"></i>
                Torna allo stabile
            </a>
            <a href="{{ route('admin.palazzine.create', ['stabile_id' => $stabile->id]) }}" class="btn btn-netgescon-primary">
                <i class="fas fa-plus me-2"></i>
                Nuova Palazzina
            </a>
        </div>
    </div>

    @php
        $totalePalazzine = $palazzine->count();
        $totaleUnitaStabile = $palazzine->getCollection()->sum(fn ($palazzina) => $palazzina->unitaImmobiliari->count());
        $formatPiano = static function ($value): string {
            if ($value === null || $value === '') {
                return 'Piano N/D';
            }

            if (is_numeric($value)) {
                $piano = (int) $value;

                return match (true) {
                    $piano === 0 => 'Piano terra',
                    $piano < 0 => 'Interrato ' . abs($piano),
                    default => 'Piano ' . $piano,
                };
            }

            $normalized = strtoupper(trim((string) $value));

            return match ($normalized) {
                'T', 'PT', 'R', 'PR' => 'Piano terra',
                'S', 'PS' => 'Interrato 1',
                default => 'Piano ' . $normalized,
            };
        };
        $sortPiano = static function ($value): int {
            if ($value === null || $value === '') {
                return -999;
            }

            if (is_numeric($value)) {
                return (int) $value;
            }

            return match (strtoupper(trim((string) $value))) {
                'T', 'PT', 'R', 'PR' => 0,
                'S', 'PS' => -1,
                default => is_numeric((string) $value) ? (int) $value : -999,
            };
        };
    @endphp

    <div class="row g-3 mb-4">
        <div class="col-12 col-md-4">
            <div class="card border-0 shadow-sm h-100">
                <div class="card-body">
                    <div class="text-muted text-uppercase small">Palazzine</div>
                    <div class="display-6 fw-semibold mb-0">{{ $totalePalazzine }}</div>
                </div>
            </div>
        </div>
        <div class="col-12 col-md-4">
            <div class="card border-0 shadow-sm h-100">
                <div class="card-body">
                    <div class="text-muted text-uppercase small">Unità visibili</div>
                    <div class="display-6 fw-semibold mb-0">{{ $totaleUnitaStabile }}</div>
                </div>
            </div>
        </div>
        <div class="col-12 col-md-4">
            <div class="card border-0 shadow-sm h-100">
                <div class="card-body">
                    <div class="text-muted text-uppercase small">Vista operativa</div>
                    <div class="small text-muted">Ogni palazzina mostra le unità per scala e per piano, con adiacenze orizzontali e riferimenti verticali utili per guasti e perdite.</div>
                </div>
            </div>
        </div>
    </div>

    @if($palazzine->isEmpty())
        <div class="card shadow-sm border-0">
            <div class="card-body py-5 text-center text-muted">
                <i class="fas fa-building fa-3x mb-3"></i>
                <p class="mb-2">Non ci sono ancora palazzine censite per questo stabile.</p>
                <p class="small">Usa il pulsante "Nuova Palazzina" per iniziare oppure importa i dati dallo strumento Gescon.</p>
            </div>
        </div>
    @else
        <div class="d-grid gap-4">
            @foreach($palazzine as $palazzina)
                @php
                    $totaleUnita = $palazzina->unitaImmobiliari->count();
                    $unitaOccupate = $palazzina->unitaImmobiliari->whereIn('stato_occupazione', ['occupata_proprietario', 'occupata_inquilino'])->count();
                    $unitaLibere = $palazzina->unitaImmobiliari->where('stato_occupazione', 'libera')->count();
                    $scaleGroups = $palazzina->unitaImmobiliari
                        ->groupBy(fn ($unita) => trim((string) ($unita->scala ?? 'A')) ?: 'A')
                        ->sortKeys();
                @endphp

                <div class="card border-0 shadow-sm">
                    <div class="card-body p-4">
                        <div class="d-flex flex-column flex-xl-row justify-content-between gap-3 mb-4">
                            <div>
                                <h2 class="h4 mb-1">
                                    <i class="fas fa-building me-2 text-primary"></i>
                                    Palazzina {{ $palazzina->codice_palazzina ?? '-' }}
                                </h2>
                                <p class="text-muted mb-2">{{ $palazzina->denominazione ?? 'Senza denominazione' }}</p>
                                <div class="d-flex flex-wrap gap-2 small text-muted">
                                    <span class="badge bg-light text-dark">{{ $totaleUnita }} unità</span>
                                    <span class="badge bg-success-subtle text-success">{{ $unitaOccupate }} occupate</span>
                                    <span class="badge bg-warning-subtle text-warning">{{ $unitaLibere }} libere</span>
                                    <span class="badge bg-info-subtle text-info">{{ $scaleGroups->count() }} scale</span>
                                </div>
                            </div>

                            <div class="d-flex flex-wrap gap-2 align-items-start">
                                <span class="text-muted small align-self-center">Aggiornata {{ optional($palazzina->updated_at)->diffForHumans() ?? 'N/D' }}</span>
                                <a href="{{ route('admin.palazzine.show', $palazzina) }}" class="btn btn-sm btn-outline-primary">
                                    <i class="fas fa-eye me-1"></i>Dettagli
                                </a>
                                <a href="{{ route('admin.palazzine.edit', $palazzina) }}" class="btn btn-sm btn-outline-secondary">
                                    <i class="fas fa-edit me-1"></i>Modifica
                                </a>
                            </div>
                        </div>

                        @if($scaleGroups->isEmpty())
                            <div class="rounded border border-dashed border-secondary-subtle bg-light p-4 text-center text-muted">
                                Nessuna unità collegata a questa palazzina.
                            </div>
                        @else
                            <div class="row g-4">
                                @foreach($scaleGroups as $scala => $scaleUnits)
                                    @php
                                        $orderedScaleUnits = $scaleUnits->sortBy([
                                            fn ($unit) => -1 * $sortPiano($unit->piano),
                                            fn ($unit) => (string) ($unit->interno ?? ''),
                                            fn ($unit) => (int) $unit->id,
                                        ])->values();
                                        $floorGroups = $scaleUnits
                                            ->groupBy(fn ($unit) => (string) ($unit->piano ?? 'nd'))
                                            ->sortByDesc(fn ($units, $key) => $sortPiano($key));
                                    @endphp
                                    <div class="col-12 col-xl-6">
                                        <div class="rounded-4 border border-secondary-subtle bg-light p-3 h-100">
                                            <div class="d-flex justify-content-between align-items-center mb-3">
                                                <div>
                                                    <div class="text-uppercase small text-muted">Scala</div>
                                                    <div class="h5 mb-0">{{ $scala }}</div>
                                                </div>
                                                <span class="badge bg-dark-subtle text-dark">{{ $scaleUnits->count() }} unità</span>
                                            </div>

                                            <div class="d-grid gap-3">
                                                @foreach($floorGroups as $pianoKey => $floorUnits)
                                                    @php
                                                        $orderedFloorUnits = $floorUnits->sortBy(fn ($unit) => (string) ($unit->interno ?? ''))->values();
                                                    @endphp
                                                    <div class="rounded-3 border border-white bg-white p-3 shadow-sm">
                                                        <div class="d-flex align-items-center gap-2 mb-3">
                                                            <span class="badge bg-primary-subtle text-primary">{{ $formatPiano($pianoKey) }}</span>
                                                            <span class="text-muted small">Adiacenze orizzontali sulla stessa riga</span>
                                                        </div>

                                                        <div class="row g-3">
                                                            @foreach($orderedFloorUnits as $index => $unita)
                                                                @php
                                                                    $prev = $orderedFloorUnits->get($index - 1);
                                                                    $next = $orderedFloorUnits->get($index + 1);
                                                                    $stack = $orderedScaleUnits
                                                                        ->filter(fn ($candidate) => trim((string) ($candidate->interno ?? '')) === trim((string) ($unita->interno ?? '')))
                                                                        ->values();
                                                                    $stackIndex = $stack->search(fn ($candidate) => (int) $candidate->id === (int) $unita->id);
                                                                    $above = $stackIndex !== false && $stackIndex > 0 ? $stack->get($stackIndex - 1) : null;
                                                                    $below = $stackIndex !== false ? $stack->get($stackIndex + 1) : null;
                                                                    $status = (string) ($unita->stato_occupazione ?? '');
                                                                    $statusClass = match ($status) {
                                                                        'occupata_proprietario', 'occupata_inquilino' => 'bg-success-subtle text-success',
                                                                        'libera' => 'bg-warning-subtle text-warning',
                                                                        default => 'bg-secondary-subtle text-secondary',
                                                                    };
                                                                @endphp
                                                                <div class="col-12 col-md-6 col-xxl-4">
                                                                    <div class="rounded-3 border border-secondary-subtle p-3 h-100 bg-light">
                                                                        <div class="d-flex justify-content-between align-items-start gap-2 mb-2">
                                                                            <div>
                                                                                <div class="fw-semibold text-dark">Interno {{ $unita->interno ?? 'N/D' }}</div>
                                                                                <div class="small text-muted">{{ $unita->codice_unita ?? ('Unità #' . $unita->id) }}</div>
                                                                            </div>
                                                                            <span class="badge {{ $statusClass }}">{{ $status !== '' ? str_replace('_', ' ', $status) : 'stato N/D' }}</span>
                                                                        </div>

                                                                        <div class="small text-dark mb-2">{{ $unita->denominazione ?? 'Denominazione non disponibile' }}</div>

                                                                        <div class="small text-muted d-grid gap-1">
                                                                            <div><strong>Accanto SX:</strong> {{ $prev?->interno ? 'Int. ' . $prev->interno : '—' }}</div>
                                                                            <div><strong>Accanto DX:</strong> {{ $next?->interno ? 'Int. ' . $next->interno : '—' }}</div>
                                                                            <div><strong>Sopra:</strong> {{ $above?->piano !== null ? $formatPiano($above->piano) . ' · Int. ' . ($above->interno ?? 'N/D') : '—' }}</div>
                                                                            <div><strong>Sotto:</strong> {{ $below?->piano !== null ? $formatPiano($below->piano) . ' · Int. ' . ($below->interno ?? 'N/D') : '—' }}</div>
                                                                        </div>
                                                                    </div>
                                                                </div>
                                                            @endforeach
                                                        </div>
                                                    </div>
                                                @endforeach
                                            </div>
                                        </div>
                                    </div>
                                @endforeach
                            </div>
                        @endif
                    </div>
                </div>
            @endforeach
        </div>

        <div class="mt-4">
            {{ $palazzine->withQueryString()->links() }}
        </div>
    @endif
</div>
@endsection