@extends('layouts.app')

@section('title', 'Réinscriptions')
@section('heading', 'Réinscriptions — passage de classe')
@section('subheading', $current && $previous ? "De {$previous->name} vers {$current->name}" : '')

@section('content')
    <div class="mb-3">
        <a href="{{ route('settings.index') }}" class="btn btn-sm btn-outline-secondary">
            <i class="bi bi-arrow-left me-1"></i>Paramètres
        </a>
    </div>

    @if (! $current)
        <div class="alert alert-warning"><i class="bi bi-exclamation-triangle me-2"></i>Aucune année courante.</div>
    @elseif ($current->status === 'closed')
        <div class="alert alert-warning d-flex gap-2">
            <i class="bi bi-exclamation-triangle"></i>
            <div>
                L'année courante <strong>{{ $current->name }}</strong> est clôturée.
                <a href="{{ route('settings.years.index') }}" class="alert-link">Créez l'année suivante et rendez-la courante</a>
                avant de réinscrire.
            </div>
        </div>
    @elseif (! $previous)
        <div class="alert alert-light border">
            <i class="bi bi-info-circle me-2"></i>
            Aucune année clôturée avant {{ $current->name }} : rien à réinscrire en lot.
            Les nouveaux élèves s'inscrivent depuis <a href="{{ route('students.create') }}">Élèves → Inscrire</a>.
        </div>
    @elseif ($classes->isEmpty())
        <div class="alert alert-light border">
            <i class="bi bi-info-circle me-2"></i>
            Aucun élève clôturé en {{ $previous->name }} : rien à réinscrire en lot.
        </div>
    @elseif ($current->classes()->doesntExist())
        <div class="alert alert-warning">
            <i class="bi bi-exclamation-triangle me-2"></i>
            Aucune classe ouverte en {{ $current->name }}.
            <a href="{{ route('classes.index') }}" class="alert-link">Créez les classes</a> avant de réinscrire.
        </div>
    @else
        <form method="POST" action="{{ route('reenrollment.store') }}" id="form-reinscription">
            @csrf

            <div class="alert alert-light border small d-flex gap-2">
                <i class="bi bi-info-circle"></i>
                <div>
                    La classe proposée suit la décision de fin d'année : niveau suivant pour un
                    promu, même niveau pour un redoublant. Un élève en <strong>repêchage</strong>
                    est proposé au même niveau — changez la cible s'il a réussi l'épreuve.
                    Chaque réinscription génère l'échéancier de {{ $current->name }}.
                </div>
            </div>

            @foreach ($classes as ['class' => $class, 'rows' => $rows, 'targets' => $targets])
                @php $eligible = $rows->filter(fn ($r) => ! $r['already'] && ! $r['left'] && ! $r['graduated']); @endphp
                <div class="card mb-3">
                    <div class="card-header bg-white d-flex justify-content-between align-items-center flex-wrap gap-2">
                        <span class="fw-semibold">
                            {{ $class->name }} <span class="text-secondary fw-normal small">({{ $previous->name }})</span>
                        </span>
                        @if ($eligible->isNotEmpty())
                            <button type="button" class="btn btn-sm btn-outline-secondary cocher-tout" data-class="{{ $class->id }}">
                                <i class="bi bi-check2-square me-1"></i>Tout cocher
                            </button>
                        @endif
                    </div>

                    <div class="table-responsive">
                        <table class="table table-sm align-middle mb-0">
                            <thead>
                                <tr>
                                    <th style="width: 2.5rem;"></th>
                                    <th>Élève</th>
                                    <th class="text-end">Moyenne</th>
                                    <th>Décision</th>
                                    <th style="min-width: 12rem;">Classe {{ $current->name }}</th>
                                </tr>
                            </thead>
                            <tbody>
                                @foreach ($rows as $row)
                                    @php $e = $row['enrollment']; $blocked = $row['already'] || $row['left'] || $row['graduated']; @endphp
                                    <tr @class(['text-secondary' => $blocked])>
                                        <td>
                                            @unless ($blocked)
                                                <input type="checkbox" class="form-check-input" name="selected[{{ $e->id }}]" value="1"
                                                       data-class="{{ $class->id }}" @checked($row['suggested'] !== null)
                                                       aria-label="Réinscrire {{ $e->student->fullName() }}">
                                            @endunless
                                        </td>
                                        <td>{{ $e->student->last_name }}, {{ $e->student->first_name }}</td>
                                        <td class="text-end">
                                            {{ $e->general_average !== null ? number_format($e->general_average, 2, ',', ' ') : '—' }}
                                        </td>
                                        <td><span class="badge {{ $row['decision']->badgeClass() }}">{{ $row['decision']->label() }}</span></td>
                                        <td>
                                            @if ($row['already'])
                                                <span class="small"><i class="bi bi-check-lg text-success me-1"></i>Déjà inscrit(e)</span>
                                            @elseif ($row['graduated'])
                                                <span class="small">Fin de scolarité</span>
                                            @elseif ($row['left'])
                                                <span class="small">A quitté l'école</span>
                                            @else
                                                <select name="targets[{{ $e->id }}]" class="form-select form-select-sm">
                                                    @foreach ($targets as $target)
                                                        <option value="{{ $target->id }}" @selected($row['suggested']?->id === $target->id)>
                                                            {{ $target->name }}
                                                        </option>
                                                    @endforeach
                                                </select>
                                                @if ($row['suggested'] === null && $row['target_level'])
                                                    <div class="form-text text-warning mb-0">
                                                        Aucune classe de {{ $row['target_level']->shortLabel() }} en {{ $current->name }}.
                                                    </div>
                                                @endif
                                            @endif
                                        </td>
                                    </tr>
                                @endforeach
                            </tbody>
                        </table>
                    </div>
                </div>
            @endforeach

            <div class="d-flex justify-content-end">
                <button type="submit" class="btn btn-primary">
                    <i class="bi bi-people me-1"></i>Réinscrire les élèves cochés
                </button>
            </div>
        </form>

        <script>
            document.querySelectorAll('.cocher-tout').forEach((btn) => {
                btn.addEventListener('click', () => {
                    document.querySelectorAll(`input[type=checkbox][data-class="${btn.dataset.class}"]`)
                        .forEach((c) => { c.checked = true; });
                });
            });
        </script>
    @endif
@endsection