{{--
    Ports app/Views/student/show.php's renderGroupCard() (legacy, lines 76-282)
    — see the Phase 8 plan. Stats/tariff/month-grouping are precomputed in
    StudentProfileController@loadGroupInfo/computeGroupStats/resolveGroupTariff
    (Blade partials shouldn't run SQL or business logic), not recomputed here.
--}}
@php
    $tariff = $group->tariff;
    $stats = $group->stats;
    $uniqueId = $group->uniqueId;
@endphp
<div class="card shadow-sm mb-3 {{ $group->is_active ? '' : 'border-secondary opacity-75' }}">
    <div class="card-body">
        <div class="d-flex justify-content-between align-items-start">
            <h5 class="card-title mb-1">
                <a href="/group_admin_info.php?group_id={{ $group->group_id }}"
                   class="text-decoration-none link-primary">
                    {{ $group->group_name }}
                </a>
            </h5>
            <span class="badge bg-{{ $group->is_active ? 'success' : 'secondary' }}">
                {{ $group->is_active ? 'Активен' : 'Неактивен' }}
            </span>
        </div>
        <p class="mb-1"><strong>Предмет:</strong> {{ $group->discipline_name }}</p>
        <p class="mb-1"><strong>Учитель:</strong> {{ $group->teacher_name ?? '—' }}</p>
        <p class="mb-1 small text-muted">
            <strong>С:</strong> {{ date('d.m.Y', strtotime($group->joined_at)) }}
            @if ($group->end_date)
                <strong> по </strong> {{ date('d.m.Y', strtotime($group->end_date)) }}
            @endif
        </p>

        @if (!empty($group->schedule))
            <p class="mb-1 small">
                <strong>Расписание:</strong>
                @foreach ($group->schedule as $schedule)
                    <span class="d-inline-block me-2">
                        {{ \App\Support\Weekdays::toString((int) $schedule->weekdays) }}
                        {{ date('H:i', strtotime($schedule->begin_time)) }}&ndash;{{ date('H:i', strtotime($schedule->end_time)) }}
                        @if (!empty($schedule->classroom_name))
                            ({{ $schedule->classroom_name }})
                        @endif
                    </span>
                @endforeach
            </p>
        @endif

        @if ($tariff)
            <div class="d-flex align-items-start justify-content-between mt-2 mb-2 p-2 rounded border"
                 style="background:#f8fafc; font-size:14px;">
                <div>
                    @if ($tariff->source === 'student')
                        <span class="badge bg-primary me-1" style="font-size:10px;">Инд. тариф</span>
                    @elseif ($tariff->source === 'general')
                        <span class="badge bg-info text-dark me-1" style="font-size:10px;">Общий тариф</span>
                    @else
                        <span class="badge bg-secondary me-1" style="font-size:10px;">Тариф группы</span>
                    @endif
                    <strong>{{ preg_replace('/^\[manual\]\s*/', '', $tariff->name) }}</strong>
                    &nbsp;&middot;&nbsp;
                    @if (!empty($tariff->discounted_price))
                        <s class="text-muted">{{ number_format((float) $tariff->price, 0, ',', ' ') }} &#8376;</s>
                        {{ number_format($tariff->discounted_price, 0, ',', ' ') }} &#8376;
                        <span class="badge bg-success" style="font-size:10px;">-{{ $tariff->discount_percent }}%</span>
                    @else
                        {{ number_format((float) $tariff->price, 0, ',', ' ') }} &#8376;
                    @endif
                    / {{ $tariff->lessons_count }} уроков
                    @if ($tariff->lessons_count > 0)
                        @php $perLessonBase = $tariff->discounted_price ?? (float) $tariff->price; @endphp
                        <span class="text-muted">({{ number_format($perLessonBase / $tariff->lessons_count, 0, ',', ' ') }} &#8376;/ур.)</span>
                    @endif
                    @if ($tariff->start_date && $tariff->end_date)
                        <br>
                        <span class="text-muted">
                            {{ date('d.m.Y', strtotime($tariff->start_date)) }}
                            &mdash; {{ date('d.m.Y', strtotime($tariff->end_date)) }}
                        </span>
                    @endif
                    @if ($tariff->source === 'student' && $tariff->lessons_remaining !== null)
                        &nbsp;&middot;&nbsp;
                        <span class="{{ (int) $tariff->lessons_remaining <= 2 ? 'text-danger fw-bold' : 'text-success' }}">
                            осталось уроков: {{ (int) $tariff->lessons_remaining }}
                        </span>
                    @endif
                </div>
                @if ($tariff->source === 'student')
                    <button class="btn btn-outline-secondary btn-sm ms-2"
                            onclick="openEditTariffModal({{ $tariff->st_id }}, {{ $group->group_id }}, '{{ addslashes($tariff->name) }}', {{ $tariff->price }}, {{ $tariff->lessons_count }}, '{{ $tariff->start_date }}', '{{ $tariff->end_date }}')">
                        &#9998;
                    </button>
                @else
                    <button class="btn btn-outline-primary btn-sm ms-2"
                            onclick="openAddTariffModal({{ $group->group_id }})"
                            title="Назначить индивидуальный тариф">
                        + Инд.
                    </button>
                @endif
            </div>
        @else
            <div class="d-flex align-items-center justify-content-between mt-2 mb-2 p-2 rounded border border-warning"
                 style="background:#fffbeb; font-size:14px;">
                <span class="text-warning">&#9888; Тариф не назначен</span>
                <button class="btn btn-outline-primary btn-sm"
                        onclick="openAddTariffModal({{ $group->group_id }})">
                    + Назначить
                </button>
            </div>
        @endif

        @if ($stats)
            <div class="row g-2 mb-3 mt-1">
                @foreach (['week' => '📅 За 7 дней', 'month' => '📆 За 30 дней'] as $key => $label)
                    @php
                        $s = $stats[$key];
                        $pctColor = $s['percent'] < 50 ? 'red' : ($s['percent'] < 80 ? 'warning' : 'green');
                        $pctHex = ['green' => '#28a745', 'amber' => '#ffc107', 'red' => '#dc3545'][$pctColor] ?? '';
                    @endphp
                    <div class="col-sm-6">
                        <div class="p-2 border rounded bg-light small">
                            <strong>{{ $label }}</strong><br>
                            Уроков: {{ $s['total'] }} &nbsp;|&nbsp;
                            Посетил: {{ $s['attended'] }} &nbsp;|&nbsp;
                            Пропуски: {{ $s['absences'] }}<br>
                            Процент:
                            <span style="color:{{ $pctHex }}; font-weight:bold;">
                                {{ $s['percent'] }}%
                            </span>
                            &nbsp;|&nbsp; КР: {{ $s['krAvg'] }}
                            &nbsp;|&nbsp; ДЗ: {{ $s['dzAvg'] }}
                        </div>
                    </div>
                @endforeach
            </div>
        @endif

        @if (!empty($group->lessons))
            <div class="mt-2">
                <strong>Уроки и посещаемость:</strong>
                <div class="position-relative mt-2">
                    <div class="d-flex justify-content-between align-items-center mb-2">
                        <button class="btn btn-sm btn-outline-primary" onclick="changeMonth('{{ $uniqueId }}', -1)">&larr;</button>
                        <h6 id="month-label-{{ $uniqueId }}" class="mb-0" data-current-index="0"></h6>
                        <button class="btn btn-sm btn-outline-primary" onclick="changeMonth('{{ $uniqueId }}', 1)">&rarr;</button>
                    </div>

                    @foreach ($group->months as $monthKey => $monthLessons)
                        <div class="month-lessons" id="month-{{ $uniqueId }}-{{ $monthKey }}" style="display:none;">
                            <div class="d-flex flex-wrap gap-2 mt-2">
                                @foreach ($monthLessons as $lesson)
                                    @php
                                        if (!empty($lesson->is_frozen)) {
                                            $bgColor = '#5bc0de';
                                        } else {
                                            $bgColor = match ($lesson->status ?? '') {
                                                'attended' => '#28a745',
                                                'paid_absence' => '#dc3545',
                                                'free_absence' => '#007bff',
                                                default => '#6c757d',
                                            };
                                        }
                                    @endphp
                                    <div class="p-2 text-white rounded lesson-block"
                                         data-lesson-id="{{ $lesson->lesson_id ?? '' }}"
                                         data-status="{{ $lesson->status ?? '' }}"
                                         data-date="{{ date('d.m.Y', strtotime($lesson->lesson_date)) }}"
                                         data-kr="{{ $lesson->kr_score ?? '' }}"
                                         data-dz="{{ $lesson->dz_score ?? '' }}"
                                         data-lateness="{{ $lesson->lateness ?? '' }}"
                                         data-comments="{{ $lesson->comments_combined ?? '' }}"
                                         data-frozen="{{ !empty($lesson->is_frozen) ? '1' : '' }}"
                                         style="background-color: {{ $bgColor }}; cursor:pointer;"
                                         @if (!empty($lesson->has_weekly_test)) title="Проведён еженедельный тест" @endif>
                                        {{ date('d.m.Y', strtotime($lesson->lesson_date)) }}{{ !empty($lesson->has_weekly_test) ? ' *' : '' }}
                                    </div>
                                @endforeach
                            </div>
                        </div>
                    @endforeach
                </div>
            </div>
        @endif
    </div>
</div>