@extends('layouts.app')

@section('title', 'Оплаты')

@section('content')
    <div class="container mt-4 pb-5">

        <!-- Header -->
        <div class="d-flex justify-content-between align-items-center mb-4 flex-wrap gap-2">
            <h2 class="mb-0">Оплаты</h2>

            <!-- Month picker -->
            @php
                $extraParams = http_build_query(array_filter([
                    'search' => $search,
                    'status_id' => $statusId,
                    'amount_min' => $amountMin,
                    'amount_max' => $amountMax,
                ], fn ($v) => $v !== ''));
            @endphp
            <div class="d-flex align-items-center gap-2">
                <a href="?date_from={{ $prevFrom }}&date_to={{ $prevTo }}&{{ $extraParams }}"
                   class="btn btn-outline-secondary btn-sm">&larr;</a>

                <form method="GET" class="d-flex gap-2 align-items-center">
                    <input type="hidden" name="search" value="{{ $search }}">
                    <input type="hidden" name="status_id" value="{{ $statusId }}">
                    <input type="hidden" name="amount_min" value="{{ $amountMin }}">
                    <input type="hidden" name="amount_max" value="{{ $amountMax }}">
                    <input type="date" name="date_from" class="form-control form-control-sm" style="width:145px"
                           value="{{ $dateFrom }}">
                    <span class="text-muted">&mdash;</span>
                    <input type="date" name="date_to" class="form-control form-control-sm" style="width:145px"
                           value="{{ $dateTo }}">
                    <button type="submit" class="btn btn-primary btn-sm">Применить</button>
                </form>

                <a href="?date_from={{ $nextFrom }}&date_to={{ $nextTo }}&{{ $extraParams }}"
                   class="btn btn-outline-secondary btn-sm">&rarr;</a>
            </div>
        </div>

        <!-- Summary card -->
        <div class="row g-3 mb-4">
            <div class="col-md-4">
                <div class="card border-success shadow-sm h-100">
                    <div class="card-body">
                        <div class="small text-muted">Всего оплачено за период</div>
                        <div class="fw-bold fs-4 text-success js-payments-total" data-amount="{{ $totalAmount }}">
                            {{ number_format($totalAmount, 0, ',', ' ') }} &#8376;
                        </div>
                        <div class="small text-muted"><span id="paymentsCountLabel">{{ $payments->total() }}</span> платежей</div>
                    </div>
                </div>
            </div>
            <div class="col-md-8">
                <div class="card border-light shadow-sm h-100">
                    <div class="card-body">
                        <!-- Search + filters -->
                        <form method="GET" class="row g-2 align-items-center">
                            <input type="hidden" name="date_from" value="{{ $dateFrom }}">
                            <input type="hidden" name="date_to" value="{{ $dateTo }}">
                            <div class="col-md-4">
                                <input type="text" name="search" class="form-control"
                                       placeholder="Поиск по ученику"
                                       value="{{ $search }}">
                            </div>
                            <div class="col-md-3">
                                <select name="status_id" class="form-select">
                                    <option value="">Все статусы</option>
                                    @foreach ($allStatuses as $st)
                                        <option value="{{ $st->id }}" {{ (string) $statusId === (string) $st->id ? 'selected' : '' }}>
                                            {{ $st->name }}
                                        </option>
                                    @endforeach
                                </select>
                            </div>
                            <div class="col-md-2">
                                <input type="number" name="amount_min" class="form-control" placeholder="Сумма от"
                                       min="0" step="0.01" value="{{ $amountMin }}">
                            </div>
                            <div class="col-md-2">
                                <input type="number" name="amount_max" class="form-control" placeholder="Сумма до"
                                       min="0" step="0.01" value="{{ $amountMax }}">
                            </div>
                            <div class="col-md-1 d-flex gap-1">
                                <button class="btn btn-outline-secondary" type="submit" title="Применить">&#128269;</button>
                                @if ($search || $statusId !== '' || $amountMin !== '' || $amountMax !== '')
                                    <a href="?date_from={{ $dateFrom }}&date_to={{ $dateTo }}"
                                       class="btn btn-outline-danger" title="Сбросить">&times;</a>
                                @endif
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>

        <!-- Table -->
        <div id="paymentsAlert"></div>
        @if ($payments->isNotEmpty())
            <div class="table-responsive">
                <table class="table table-bordered table-hover align-middle">
                    <thead class="table-light">
                    <tr>
                        <th>#</th>
                        <th>Ученик</th>
                        <th>Статус</th>
                        <th class="text-end">Сумма</th>
                        <th>Дата</th>
                        <th>Описание</th>
                        <th></th>
                    </tr>
                    </thead>
                    <tbody>
                    @foreach ($payments as $p)
                        <tr>
                            <td class="text-muted small">{{ $p->id }}</td>
                            <td>
                                <a href="/student_admin_info.php?student_id={{ $p->student->id }}"
                                   class="fw-semibold text-decoration-none">
                                    {{ $p->student->last_name }} {{ $p->student->first_name }}
                                </a>
                                @if ($p->student->phone)
                                    <br><small class="text-muted">{{ $p->student->phone }}</small>
                                @endif
                            </td>
                            <td>
                                @if ($p->status)
                                    <span class="badge bg-{{ $p->status->color }}">
                                        {{ $p->status->name }}
                                    </span>
                                @else
                                    <span class="text-muted">&mdash;</span>
                                @endif
                            </td>
                            <td class="text-end text-success fw-semibold">
                                {{ number_format($p->amount, 0, ',', ' ') }} &#8376;
                            </td>
                            <td>{{ $p->payment_date }}</td>
                            <td class="text-muted small">{{ $p->description ?? '—' }}</td>
                            <td>
                                {{-- Laravel-native CSRF since Phase 9 — /delete_payment.php now
                                     has its own route+handler in PaymentController@destroy,
                                     no longer shared with any not-yet-migrated legacy page. --}}
                                <form method="POST" action="/delete_payment.php"
                                      class="js-ajax-form" data-remove-target="tr" data-alert-target="#paymentsAlert"
                                      data-amount="{{ $p->amount }}"
                                      onsubmit="return confirm('Удалить платёж #{{ $p->id }}?');">
                                    @csrf
                                    <input type="hidden" name="payment_id" value="{{ $p->id }}">
                                    <input type="hidden" name="student_id" value="{{ $p->student->id }}">
                                    <input type="hidden" name="redirect_to" value="payments.php?date_from={{ $dateFrom }}&date_to={{ $dateTo }}">
                                    <button type="submit" class="btn btn-outline-danger btn-sm">&times;</button>
                                </form>
                            </td>
                        </tr>
                    @endforeach
                    </tbody>
                    <tfoot class="table-secondary fw-bold">
                    <tr>
                        <td colspan="3">Итого</td>
                        <td class="text-end text-success js-payments-total" data-amount="{{ $totalAmount }}">
                            {{ number_format($totalAmount, 0, ',', ' ') }} &#8376;
                        </td>
                        <td colspan="3"></td>
                    </tr>
                    </tfoot>
                </table>
            </div>
        @else
            <div class="alert alert-light text-muted">Платежей за выбранный период нет.</div>
        @endif

        <!-- Pagination -->
        {{ $payments->withQueryString()->links('pagination::bootstrap-5') }}

    </div>
@endsection

@push('scripts')
<script>
document.getElementById('paymentsAlert').closest('.container').addEventListener('ajax-form:success', function (e) {
    const amount = parseFloat(e.target.dataset.amount);
    if (Number.isNaN(amount)) return;

    document.querySelectorAll('.js-payments-total').forEach(el => {
        const remaining = parseFloat(el.dataset.amount) - amount;
        el.dataset.amount = remaining;
        el.textContent = remaining.toLocaleString('ru', { maximumFractionDigits: 0 }) + ' ₸';
    });

    const countLabel = document.getElementById('paymentsCountLabel');
    if (countLabel) {
        countLabel.textContent = Math.max(0, parseInt(countLabel.textContent, 10) - 1);
    }
});
</script>
@endpush