{% extends 'base.html' %}
{% from 'macros.html' import rating_badge %}
{% block title %}Главная — Электронная библиотека{% endblock %}

{% block content %}
<h2 class="mb-3">Каталог книг</h2>

{# ── Форма поиска (Вариант 3) ────────────────────────────────────────────── #}
<div class="card mb-4">
    <div class="card-header">
        <strong>Поиск книг</strong>
    </div>
    <div class="card-body">
        <form method="get" action="{{ url_for('index') }}">
            <div class="row g-2">
                <div class="col-md-4">
                    <label class="form-label">Название</label>
                    <input type="text" class="form-control" name="title" value="{{ q_title }}">
                </div>
                <div class="col-md-4">
                    <label class="form-label">Автор</label>
                    <input type="text" class="form-control" name="author" value="{{ q_author }}">
                </div>
                <div class="col-md-2">
                    <label class="form-label">Страниц от</label>
                    <input type="number" class="form-control" name="pages_from" value="{{ q_pages_from }}" min="1">
                </div>
                <div class="col-md-2">
                    <label class="form-label">Страниц до</label>
                    <input type="number" class="form-control" name="pages_to" value="{{ q_pages_to }}" min="1">
                </div>
                <div class="col-md-6">
                    <label class="form-label">Жанр</label>
                    <select class="form-select" name="genres" multiple size="4">
                        {% for genre in all_genres %}
                            <option value="{{ genre.id }}"
                                {% if genre.id in q_genres %}selected{% endif %}>
                                {{ genre.name }}
                            </option>
                        {% endfor %}
                    </select>
                    <div class="form-text">Ctrl — несколько жанров</div>
                </div>
                <div class="col-md-6">
                    <label class="form-label">Год</label>
                    <select class="form-select" name="years" multiple size="4">
                        {% for row in all_years %}
                            <option value="{{ row.year }}"
                                {% if row.year in q_years %}selected{% endif %}>
                                {{ row.year }}
                            </option>
                        {% endfor %}
                    </select>
                    <div class="form-text">Ctrl — несколько лет</div>
                </div>
            </div>
            <div class="mt-3 d-flex gap-2">
                <button type="submit" class="btn btn-primary">
                    <i class="bi bi-search"></i> Найти
                </button>
                <a href="{{ url_for('index') }}" class="btn btn-outline-secondary">Сбросить</a>
            </div>
        </form>
    </div>
</div>

{# ── Список книг ─────────────────────────────────────────────────────────── #}
{% if books %}
<div class="table-responsive">
    <table class="table table-striped align-middle">
        <thead class="table-dark">
            <tr>
                <th>Обложка</th>
                <th>Название</th>
                <th>Жанр(ы)</th>
                <th>Год</th>
                <th>Средняя оценка</th>
                <th>Рецензий</th>
                <th>Действия</th>
            </tr>
        </thead>
        <tbody>
            {% for book in books %}
            <tr>
                <td>
                    {% if book.cover_filename %}
                        <img src="{{ url_for('uploaded_file', filename=book.cover_filename) }}"
                             class="cover-thumb rounded" alt="обложка">
                    {% else %}
                        <div class="cover-thumb bg-secondary rounded d-flex align-items-center justify-content-center text-white">
                            <i class="bi bi-book"></i>
                        </div>
                    {% endif %}
                </td>
                <td><strong>{{ book.title }}</strong><br>
                    <small class="text-muted">{{ book.author }}</small>
                </td>
                <td><small>{{ book.genres or '—' }}</small></td>
                <td>{{ book.year }}</td>
                <td>
                    {% if book.avg_rating is not none %}
                        {{ rating_badge(book.avg_rating) }}
                    {% else %}
                        <span class="text-muted">—</span>
                    {% endif %}
                </td>
                <td>{{ book.review_count }}</td>
                <td>
                    <a href="{{ url_for('book_view', book_id=book.id) }}"
                       class="btn btn-sm btn-outline-primary" title="Просмотр">
                        <i class="bi bi-eye"></i>
                    </a>
                    {% if current_user and current_user.role_name in ['администратор', 'модератор'] %}
                    <a href="{{ url_for('book_edit', book_id=book.id) }}"
                       class="btn btn-sm btn-outline-secondary" title="Редактировать">
                        <i class="bi bi-pencil"></i>
                    </a>
                    {% endif %}
                    {% if current_user and current_user.role_name == 'администратор' %}
                    <button type="button" class="btn btn-sm btn-outline-danger"
                            title="Удалить"
                            data-bs-toggle="modal"
                            data-bs-target="#deleteModal"
                            data-book-id="{{ book.id }}"
                            data-book-title="{{ book.title }}">
                        <i class="bi bi-trash"></i>
                    </button>
                    {% endif %}
                </td>
            </tr>
            {% endfor %}
        </tbody>
    </table>
</div>

{# ── Пагинация ────────────────────────────────────────────────────────────── #}
{% if total_pages > 1 %}
<nav>
    <ul class="pagination justify-content-center">
        {% for p in range(1, total_pages + 1) %}
        <li class="page-item {% if p == page %}active{% endif %}">
            <a class="page-link"
               href="{{ url_for('index', page=p,
                       title=q_title, author=q_author,
                       pages_from=q_pages_from, pages_to=q_pages_to,
                       genres=q_genres, years=q_years) }}">{{ p }}</a>
        </li>
        {% endfor %}
    </ul>
</nav>
{% endif %}

{% else %}
<div class="alert alert-info">Книги не найдены</div>
{% endif %}

{% if current_user and current_user.role_name == 'администратор' %}
<div class="mt-3">
    <a href="{{ url_for('book_add') }}" class="btn btn-success">
        <i class="bi bi-plus-circle"></i> Добавить книгу
    </a>
</div>
{% endif %}

{# ── Модальное окно удаления ──────────────────────────────────────────────── #}
<div class="modal fade" id="deleteModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Удаление книги</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p id="deleteMessage"></p>
            </div>
            <div class="modal-footer">
                <form id="deleteForm" method="post">
                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Нет</button>
                    <button type="submit" class="btn btn-danger">Да</button>
                </form>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
const deleteModal = document.getElementById('deleteModal');
deleteModal.addEventListener('show.bs.modal', function(event) {
    const btn = event.relatedTarget;
    const bookId = btn.dataset.bookId;
    const bookTitle = btn.dataset.bookTitle;
    document.getElementById('deleteMessage').textContent =
        'Вы уверены, что хотите удалить книгу «' + bookTitle + '»?';
    document.getElementById('deleteForm').action = '/book/' + bookId + '/delete';
});
</script>
{% endblock %}