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

{% block content %}
<div class="row">
    <div class="col-md-3 mb-4">
        {% if book.cover_filename %}
            <img src="{{ url_for('uploaded_file', filename=book.cover_filename) }}"
                 class="img-fluid cover-main rounded shadow" alt="обложка">
        {% else %}
            <div class="bg-secondary text-white rounded d-flex align-items-center justify-content-center"
                 style="width:220px;height:320px;font-size:3rem;">
                <i class="bi bi-book"></i>
            </div>
        {% endif %}
    </div>

    <div class="col-md-9">
        <h2>{{ book.title }}</h2>
        <table class="table table-borderless w-auto mb-3">
            <tr><th class="pe-4">Автор</th><td>{{ book.author }}</td></tr>
            <tr><th>Издательство</th><td>{{ book.publisher }}</td></tr>
            <tr><th>Год</th><td>{{ book.year }}</td></tr>
            <tr><th>Жанр(ы)</th><td>{{ book.genres or '—' }}</td></tr>
            <tr><th>Объём</th><td>{{ book.pages }} стр.</td></tr>
            <tr>
                <th>Средняя оценка</th>
                <td>
                    {% if book.avg_rating is not none %}
                        {{ rating_badge(book.avg_rating) }}
                        <small class="text-muted">({{ book.review_count }} рец.)</small>
                    {% else %}
                        <span class="text-muted">Нет оценок</span>
                    {% endif %}
                </td>
            </tr>
        </table>

        {% if current_user and current_user.role_name in ['администратор', 'модератор'] %}
        <a href="{{ url_for('book_edit', book_id=book.id) }}" class="btn btn-outline-secondary me-2">
            <i class="bi bi-pencil"></i> Редактировать
        </a>
        {% endif %}
        {% if current_user and current_user.role_name == 'администратор' %}
        <button class="btn btn-outline-danger"
                data-bs-toggle="modal" data-bs-target="#deleteModal"
                data-book-id="{{ book.id }}" data-book-title="{{ book.title }}">
            <i class="bi bi-trash"></i> Удалить
        </button>
        {% endif %}
    </div>
</div>

<hr>
<h4>Описание</h4>
<div class="mb-4">{{ desc_html | safe }}</div>

<hr>
<h4>Рецензии</h4>

{% if reviews %}
    {% for review in reviews %}
    <div class="card mb-3">
        <div class="card-body">
            <div class="d-flex justify-content-between mb-1">
                <strong>{{ review.last_name }} {{ review.first_name }}
                    {% if review.middle_name %} {{ review.middle_name }}{% endif %}
                </strong>
                {{ rating_badge(review.rating) }}
                <small class="text-muted">{{ rating_labels[review.rating] }}</small>
            </div>
            <small class="text-muted">{{ review.created_at }}</small>
            <div class="mt-2">{{ review.text | safe }}</div>
        </div>
    </div>
    {% endfor %}
{% else %}
    <p class="text-muted">Рецензий пока нет.</p>
{% endif %}

{% if current_user %}
    {% if user_review %}
        <div class="alert alert-info">Вы уже оставили рецензию на эту книгу.</div>
    {% else %}
        <a href="{{ url_for('review_add', book_id=book.id) }}" class="btn btn-primary mt-2">
            <i class="bi bi-chat-left-text"></i> Написать рецензию
        </a>
    {% endif %}
{% 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');
if (deleteModal) {
    deleteModal.addEventListener('show.bs.modal', function(event) {
        const btn = event.relatedTarget;
        document.getElementById('deleteMessage').textContent =
            'Вы уверены, что хотите удалить книгу «' + btn.dataset.bookTitle + '»?';
        document.getElementById('deleteForm').action = '/book/' + btn.dataset.bookId + '/delete';
    });
}
</script>
{% endblock %}