@extends('layouts.app')

@section('title', 'Журнал действий')

{{--
    Audit feed for /admin/activity_log.php. Rows come from two sources
    (activity_log + student_status_history) already normalised into one
    column shape by ActivityLogController, so this view only formats them.

    `changes` arrives as a JSON string in both cases — MySQL's JSON_OBJECT()
    on the status-history side, json_encode() on the activity_log side.
--}}

@php
    $actionLabels = [
        'payment.created' => 'Платёж добавлен',
        'payment.deleted' => 'Платёж удалён',
        'payment.status_changed' => 'Статус платежа изменён',
        'charge.created' => 'Начисление добавлено',
        'charge.deleted' => 'Начисление удалено',
        'expense.created' => 'Расход добавлен',
        'expense.updated' => 'Расход изменён',
        'expense.deleted' => 'Расход удалён',
        'teacher_bonus.created' => 'Бонус преподавателю начислен',
        'tariff.created' => 'Тариф создан',
        'tariff.updated' => 'Тариф изменён',
        'tariff.deleted' => 'Тариф удалён',
        'student_tariff.created' => 'Тариф назначен ученику',
        'student_tariff.updated' => 'Тариф ученика изменён',
        'student_general_tariff.updated' => 'Общий тариф ученика изменён',
        'student_individual_tariff.updated' => 'Индивидуальный тариф ученика изменён',
        'group_tariff.created' => 'Тариф назначен группе',
        'group_tariff.updated' => 'Тариф группы изменён',
        'group_tariff.deleted' => 'Тариф группы удалён',
        'student_discount.updated' => 'Скидка изменена',
        'student.status_changed' => 'Статус ученика изменён',
    ];

    $fieldLabels = [
        'amount' => 'Сумма',
        'payment_date' => 'Дата оплаты',
        'charged_date' => 'Дата начисления',
        'expense_date' => 'Дата расхода',
        'bonus_date' => 'Дата бонуса',
        'start_date' => 'Начало',
        'end_date' => 'Окончание',
        'description' => 'Описание',
        'title' => 'Описание',
        'note' => 'Примечание',
        'category' => 'Категория',
        'status_id' => 'Статус',
        'status' => 'Статус',
        'reason' => 'Причина',
        'discount_percent' => 'Скидка, %',
        'tariff_id' => 'Тариф (ID)',
        'general_tariff_id' => 'Общий тариф (ID)',
        'individual_tariff_id' => 'Индивидуальный тариф (ID)',
        'lessons_remaining' => 'Осталось уроков',
        'lessons_count' => 'Уроков в тарифе',
        'duration_days' => 'Срок, дней',
        'price' => 'Цена',
        'name' => 'Название',
        'group_id' => 'Группа (ID)',
        'student_id' => 'Ученик (ID)',
        'teacher_id' => 'Преподаватель (ID)',
        'created_by' => 'Кем создано (ID)',
        'id' => 'ID',
    ];

    $actionBadge = function (string $action): string {
        return match (true) {
            str_ends_with($action, '.deleted') => 'danger',
            str_ends_with($action, '.created') => 'success',
            default => 'secondary',
        };
    };

    $formatValue = function ($value): string {
        if ($value === null || $value === '') {
            return '—';
        }

        return is_scalar($value) ? (string) $value : json_encode($value, JSON_UNESCAPED_UNICODE);
    };
@endphp

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

    <div class="d-flex justify-content-between align-items-center mb-4 flex-wrap gap-2">
        <h2 class="mb-0">Журнал действий</h2>
        <span class="text-muted">Всего записей: {{ $entries->total() }}</span>
    </div>

    <div class="ax-card ax-card--muted mb-4">
        <form method="GET" action="/admin/activity_log.php" class="row g-2 align-items-center">
            <div class="col-md-2">
                <input type="date" name="date_from" class="form-control" value="{{ $dateFrom }}" title="Дата с">
            </div>
            <div class="col-md-2">
                <input type="date" name="date_to" class="form-control" value="{{ $dateTo }}" title="Дата по">
            </div>
            <div class="col-md-3">
                <select name="user_id" class="form-select">
                    <option value="">Все сотрудники</option>
                    @foreach ($actors as $actor)
                        <option value="{{ $actor->id }}" {{ (string) $userId === (string) $actor->id ? 'selected' : '' }}>
                            {{ $actor->name }}
                        </option>
                    @endforeach
                </select>
            </div>
            <div class="col-md-3">
                <select name="entity_type" class="form-select">
                    <option value="">Все объекты</option>
                    @foreach ($entityLabels as $value => $label)
                        <option value="{{ $value }}" {{ $entityType === $value ? 'selected' : '' }}>{{ $label }}</option>
                    @endforeach
                </select>
            </div>
            <div class="col-md-2">
                <input type="text" name="search" class="form-control" placeholder="Ученик" value="{{ $search }}">
            </div>
            <div class="col-12 d-flex gap-2">
                <button type="submit" class="btn btn-primary btn-sm">Применить</button>
                @if ($dateFrom || $dateTo || $userId !== '' || $entityType !== '' || $search !== '')
                    <a href="/admin/activity_log.php" class="btn btn-outline-danger btn-sm">Сбросить</a>
                @endif
            </div>
        </form>
    </div>

    @if ($entries->isNotEmpty())
        <div class="table-responsive">
            <table class="table table-bordered table-hover align-middle">
                <thead class="table-light">
                <tr>
                    <th style="white-space:nowrap;">Дата и время</th>
                    <th>Кто</th>
                    <th>Действие</th>
                    <th>Ученик</th>
                    <th>Изменения</th>
                    <th>IP</th>
                </tr>
                </thead>
                <tbody>
                @foreach ($entries as $entry)
                    @php
                        $changes = json_decode((string) $entry->changes, true) ?: [];
                        $before = $changes['before'] ?? [];
                        $after = $changes['after'] ?? [];
                        $keys = array_keys($before + $after);
                    @endphp
                    <tr>
                        <td style="white-space:nowrap;">{{ $entry->created_at }}</td>
                        <td>
                            {{ $entry->user_name ?? '—' }}
                            @if ($entry->user_role)
                                <div class="text-muted small">{{ $entry->user_role }}</div>
                            @endif
                        </td>
                        <td>
                            <span class="badge bg-{{ $actionBadge($entry->action) }}">
                                {{ $actionLabels[$entry->action] ?? $entry->action }}
                            </span>
                            @if ($entry->entity_id)
                                <div class="text-muted small">#{{ $entry->entity_id }}</div>
                            @endif
                        </td>
                        <td>
                            @if ($entry->student_id && trim((string) $entry->student_name) !== '')
                                <a href="/student_admin_info.php?student_id={{ $entry->student_id }}">
                                    {{ $entry->student_name }}
                                </a>
                            @else
                                —
                            @endif
                        </td>
                        <td>
                            @if ($keys === [])
                                <span class="text-muted">—</span>
                            @else
                                @foreach ($keys as $key)
                                    <div class="small">
                                        <span class="text-muted">{{ $fieldLabels[$key] ?? $key }}:</span>
                                        <span>{{ $formatValue($before[$key] ?? null) }}</span>
                                        &rarr;
                                        <strong>{{ $formatValue($after[$key] ?? null) }}</strong>
                                    </div>
                                @endforeach
                            @endif
                        </td>
                        <td class="text-muted small">{{ $entry->ip ?? '—' }}</td>
                    </tr>
                @endforeach
                </tbody>
            </table>
        </div>

        {{ $entries->withQueryString()->links('pagination::bootstrap-5') }}
    @else
        <div class="alert alert-info">Записей не найдено.</div>
    @endif

</div>
@endsection