{% extends "base.html" %}

{% block title %}Каталог материалов{% endblock %}

{% block content %}
    <!-- Заголовок с корзиной и кнопкой добавления -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h2 class="page-title">Каталог материалов</h2>
        <div class="d-flex gap-2">
            <a href="{{ url_for('add_product') }}" class="btn btn-primary">
                <i class="fas fa-plus"></i> Добавить материал
            </a>
            <a href="{{ url_for('view_cart') }}" class="btn btn-primary">
                <i class="fas fa-shopping-cart"></i> Корзина
                {% if cart_count > 0 %}
                    <span class="cart-badge">{{ cart_count }}</span>
                {% endif %}
            </a>
        </div>
    </div>

    <!-- Поиск и сортировка - УЛУЧШЕННЫЙ UX -->
    <div class="search-section mb-4">
        <div class="search-header">
            <h4 class="search-title">
                <i class="fas fa-sliders-h"></i> Фильтры и поиск
            </h4>
            <a href="{{ url_for('catalog') }}" class="btn-clear">
                <i class="fas fa-times"></i> Сбросить все
            </a>
        </div>
        
        <form method="GET" action="{{ url_for('catalog') }}" id="filterForm" class="search-form">
            <!-- Строка поиска -->
            <div class="search-row">
                <div class="search-input-wrapper">
                    <i class="fas fa-search search-icon"></i>
                    <input type="text" class="search-input" name="search" id="search" 
                           placeholder="Поиск по названию или артикулу..." 
                           value="{{ request.args.get('search', '') }}" autocomplete="off">
                    {% if request.args.get('search') %}
                        <a href="{{ url_for('catalog', category=request.args.get('category'), sort=request.args.get('sort'), supplier=request.args.get('supplier')) }}" class="search-clear">
                            <i class="fas fa-times-circle"></i>
                        </a>
                    {% endif %}
                </div>
            </div>

            <!-- Фильтры -->
            <div class="filters-row">
                <div class="filter-group">
                    <label for="supplier" class="filter-label">
                        <i class="fas fa-truck"></i> Поставщик
                    </label>
                    <select class="filter-select" name="supplier" id="supplier">
                        <option value="all" {% if request.args.get('supplier') == 'all' or not request.args.get('supplier') %}selected{% endif %}>Все поставщики</option>
                        {% for supplier in suppliers %}
                            <option value="{{ supplier.id }}" {% if request.args.get('supplier')|int == supplier.id %}selected{% endif %}>
                                {{ supplier.name }}
                            </option>
                        {% endfor %}
                    </select>
                </div>

                <div class="filter-group">
                    <label for="category" class="filter-label">
                        <i class="fas fa-tag"></i> Категория
                    </label>
                    <select class="filter-select" name="category" id="category">
                        <option value="all" {% if request.args.get('category') == 'all' or not request.args.get('category') %}selected{% endif %}>Все категории</option>
                        {% for category in categories %}
                            <option value="{{ category.id }}" {% if request.args.get('category')|int == category.id %}selected{% endif %}>
                                {{ category.category_name }}
                            </option>
                        {% endfor %}
                    </select>
                </div>

                <div class="filter-group">
                    <label for="sort" class="filter-label">
                        <i class="fas fa-sort-amount-down"></i> Сортировка
                    </label>
                    <select class="filter-select" name="sort" id="sort">
                        <option value="name_asc" {% if request.args.get('sort') == 'name_asc' or not request.args.get('sort') %}selected{% endif %}>Название (А-Я)</option>
                        <option value="name_desc" {% if request.args.get('sort') == 'name_desc' %}selected{% endif %}>Название (Я-А)</option>
                        <option value="price_asc" {% if request.args.get('sort') == 'price_asc' %}selected{% endif %}>Сначала дешевые</option>
                        <option value="price_desc" {% if request.args.get('sort') == 'price_desc' %}selected{% endif %}>Сначала дорогие</option>
                        <option value="stock_desc" {% if request.args.get('sort') == 'stock_desc' %}selected{% endif %}>По наличию</option>
                    </select>
                </div>

                <button type="submit" class="btn-apply">
                    <i class="fas fa-check"></i> Применить
                </button>
            </div>
        </form>
    </div>

    <!-- Активные фильтры -->
    {% if request.args.get('search') or (request.args.get('category') and request.args.get('category') != 'all') or (request.args.get('supplier') and request.args.get('supplier') != 'all') %}
    <div class="active-filters mb-3">
        <span class="active-filters-label">Активные фильтры:</span>
        <div class="filter-tags">
            {% if request.args.get('search') %}
                <span class="filter-tag">
                    Поиск: "{{ request.args.get('search') }}"
                    <a href="{{ url_for('catalog', category=request.args.get('category'), sort=request.args.get('sort'), supplier=request.args.get('supplier')) }}" class="remove-tag">
                        <i class="fas fa-times"></i>
                    </a>
                </span>
            {% endif %}
            {% if request.args.get('category') and request.args.get('category') != 'all' %}
                <span class="filter-tag">
                    {% for category in categories %}
                        {% if category.id == request.args.get('category')|int %}
                            Категория: {{ category.category_name }}
                        {% endif %}
                    {% endfor %}
                    <a href="{{ url_for('catalog', search=request.args.get('search'), sort=request.args.get('sort'), supplier=request.args.get('supplier')) }}" class="remove-tag">
                        <i class="fas fa-times"></i>
                    </a>
                </span>
            {% endif %}
            {% if request.args.get('supplier') and request.args.get('supplier') != 'all' %}
                <span class="filter-tag">
                    {% for supplier in suppliers %}
                        {% if supplier.id == request.args.get('supplier')|int %}
                            Поставщик: {{ supplier.name }}
                        {% endif %}
                    {% endfor %}
                    <a href="{{ url_for('catalog', search=request.args.get('search'), category=request.args.get('category'), sort=request.args.get('sort')) }}" class="remove-tag">
                        <i class="fas fa-times"></i>
                    </a>
                </span>
            {% endif %}
        </div>
    </div>
    {% endif %}

    <!-- КАТАЛОГ МАТЕРИАЛОВ -->
    {% if products %}
        <div class="row">
            {% for product in products %}
            <div class="col-12">
                <div class="product-card">
                    <!-- Первая строка: Категория | Название -->
                    <div class="product-header">
                        <div class="product-name-line">
                            <span class="product-category">
                                {{ product.category_name }}
                            </span>
                            <span class="divider">|</span>
                            <span class="product-name">{{ product.product_name }}</span>
                        </div>
                        <div class="stock-info">
                            <span class="stock-amount">
                                {% if product.quantity_in_stock and product.quantity_in_stock > 0 %}
                                    {{ product.quantity_in_stock }} ед.
                                {% else %}
                                    Нет в наличии
                                {% endif %}
                            </span>
                        </div>
                    </div>

                    <!-- Информация о материале -->
                    <div class="product-info-row">
                        <span class="info-label">Артикул:</span>
                        <span class="info-value">{{ product.article }}</span>
                    </div>

                    <div class="product-info-row">
                        <span class="info-label">Материал:</span>
                        <span class="info-value">
                            {% if product.material_name %}
                                {{ product.material_name }}
                            {% else %}
                                Не указан
                            {% endif %}
                        </span>
                    </div>

                    <div class="product-info-row">
                        <span class="info-label">Поставщик:</span>
                        <span class="info-value">
                            {% if product.supplier_name %}
                                {{ product.supplier_name }}
                            {% else %}
                                Не указан
                            {% endif %}
                        </span>
                    </div>

                    {% if product.description %}
                    <div class="product-info-row">
                        <span class="info-label">Описание:</span>
                        <span class="info-value">{{ product.description }}</span>
                    </div>
                    {% endif %}

                    <div class="product-info-row">
                        <span class="info-label">Цена:</span>
                        <span class="info-value price-value">{{ product.min_price|int }} руб.</span>
                    </div>

                    <!-- Кнопки действий с выбором поставщика -->
                    <div class="product-buttons-container">
                        <a href="{{ url_for('edit_product', product_id=product.id) }}" class="btn-action btn-edit">
                            <i class="fas fa-edit"></i> Редактирование
                        </a>
                        
                        <!-- Форма добавления в корзину с выбором поставщика -->
                        <form method="POST" action="{{ url_for('add_to_cart', product_id=product.id) }}" style="flex: 1;" class="add-to-cart-form">
                            <div class="supplier-select-wrapper" style="display: flex; gap: 5px;">
                                <select name="supplier_id" class="supplier-select" required style="flex: 1; padding: 8px; border: 2px solid #DEB887; border-radius: 8px; font-family: 'Verdana', sans-serif;">
                                    <option value="" disabled selected>Выберите поставщика</option>
                                    {% for supplier in suppliers %}
                                        <option value="{{ supplier.id }}">{{ supplier.name }}</option>
                                    {% endfor %}
                                </select>
                                <input type="hidden" name="quantity" value="1">
                                <button type="submit" class="btn-action btn-add" style="width: auto; padding: 8px 15px;"
                                        {% if not product.quantity_in_stock or product.quantity_in_stock == 0 %}disabled{% endif %}>
                                    <i class="fas fa-cart-plus"></i> В корзину
                                </button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
            {% endfor %}
        </div>
        
        <!-- Информация о результатах -->
        <div class="row mt-3">
            <div class="col-12">
                <p class="text-muted">
                    <i class="fas fa-info-circle"></i> 
                    Найдено материалов: <strong>{{ products|length }}</strong>
                    {% if request.args.get('search') %}
                        по запросу "{{ request.args.get('search') }}"
                    {% endif %}
                    {% if request.args.get('category') and request.args.get('category') != 'all' %}
                        {% for category in categories %}
                            {% if category.id == request.args.get('category')|int %}
                                , категория: {{ category.category_name }}
                            {% endif %}
                        {% endfor %}
                    {% endif %}
                    {% if request.args.get('supplier') and request.args.get('supplier') != 'all' %}
                        {% for supplier in suppliers %}
                            {% if supplier.id == request.args.get('supplier')|int %}
                                , поставщик: {{ supplier.name }}
                            {% endif %}
                        {% endfor %}
                    {% endif %}
                </p>
            </div>
        </div>
        
    {% else %}
        <div class="alert alert-info">
            <i class="fas fa-info-circle"></i> 
            {% if request.args.get('search') or request.args.get('category') != 'all' or request.args.get('supplier') != 'all' %}
                <strong>Ничего не найдено</strong> по вашему запросу.
                <br><a href="{{ url_for('catalog') }}" class="alert-link">Сбросить все фильтры</a>
            {% else %}
                В каталоге нет материалов. <a href="{{ url_for('add_product') }}" class="alert-link">Добавьте первый материал</a>.
            {% endif %}
        </div>
    {% endif %}

    <!-- JavaScript -->
    <script>
        let filterTimeout;
        
        document.getElementById('supplier').addEventListener('change', function() {
            clearTimeout(filterTimeout);
            filterTimeout = setTimeout(() => {
                document.getElementById('filterForm').submit();
            }, 300);
        });
        
        document.getElementById('category').addEventListener('change', function() {
            clearTimeout(filterTimeout);
            filterTimeout = setTimeout(() => {
                document.getElementById('filterForm').submit();
            }, 300);
        });
        
        document.getElementById('sort').addEventListener('change', function() {
            clearTimeout(filterTimeout);
            filterTimeout = setTimeout(() => {
                document.getElementById('filterForm').submit();
            }, 300);
        });
        
        let searchTimeout;
        document.getElementById('search').addEventListener('input', function() {
            clearTimeout(searchTimeout);
            searchTimeout = setTimeout(() => {
                if (this.value.length >= 2 || this.value.length === 0) {
                    document.getElementById('filterForm').submit();
                }
            }, 800);
        });
        
        document.getElementById('search').addEventListener('keypress', function(e) {
            if (e.key === 'Enter') {
                e.preventDefault();
                document.getElementById('filterForm').submit();
            }
        });

        // Валидация выбора поставщика перед отправкой
        document.querySelectorAll('.add-to-cart-form').forEach(form => {
            form.addEventListener('submit', function(e) {
                const select = this.querySelector('.supplier-select');
                if (!select.value) {
                    e.preventDefault();
                    alert('Пожалуйста, выберите поставщика');
                }
            });
        });
    </script>

    <style>
        .page-title {
            color: #A0522D;
            font-size: 1.8rem;
            font-weight: 600;
            font-family: 'Verdana', sans-serif;
        }
        
        .d-flex.gap-2 {
            gap: 10px;
        }
        
        .btn-primary {
            background: #A0522D;
            color: white;
            border: none;
            border-radius: 8px;
            padding: 10px 20px;
            font-family: 'Verdana', sans-serif;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        
        .btn-primary:hover {
            background: #8B4513;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(160, 82, 45, 0.2);
        }
        
        .cart-badge {
            background-color: #8B4513;
            color: white;
            border-radius: 50%;
            padding: 2px 6px;
            font-size: 0.7rem;
            margin-left: 5px;
            min-width: 18px;
            text-align: center;
        }

        /* ===== УЛУЧШЕННЫЙ ПОИСК И ФИЛЬТРЫ ===== */
        .search-section {
            background: white;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            padding: 20px;
            margin-bottom: 25px;
            border: 1px solid #DEB887;
        }
        
        .search-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .search-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .search-title i {
            color: #A0522D;
        }
        
        .btn-clear {
            background: none;
            border: 1px solid #DEB887;
            padding: 8px 16px;
            border-radius: 30px;
            color: #6c757d;
            font-size: 0.9rem;
            transition: all 0.2s ease;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        
        .btn-clear:hover {
            background: #FAEBD7;
            border-color: #A0522D;
            color: #A0522D;
        }
        
        .search-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        
        .search-row {
            width: 100%;
        }
        
        .search-input-wrapper {
            position: relative;
            width: 100%;
        }
        
        .search-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #adb5bd;
            font-size: 1rem;
            pointer-events: none;
        }
        
        .search-input {
            width: 100%;
            height: 48px;
            padding: 0 45px 0 45px;
            border: 2px solid #DEB887;
            border-radius: 30px;
            font-size: 1rem;
            transition: all 0.2s ease;
            background: white;
        }
        
        .search-input:focus {
            outline: none;
            border-color: #A0522D;
            box-shadow: 0 0 0 4px rgba(160, 82, 45, 0.1);
        }
        
        .search-input::placeholder {
            color: #adb5bd;
        }
        
        .search-clear {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #adb5bd;
            text-decoration: none;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .search-clear:hover {
            color: #A0522D;
        }
        
        .filters-row {
            display: flex;
            gap: 15px;
            align-items: flex-end;
            flex-wrap: wrap;
        }
        
        .filter-group {
            flex: 1;
            min-width: 180px;
        }
        
        .filter-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: #495057;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        
        .filter-label i {
            color: #A0522D;
            margin-right: 4px;
            font-size: 0.8rem;
        }
        
        .filter-select {
            width: 100%;
            height: 42px;
            padding: 0 35px 0 12px;
            border: 2px solid #DEB887;
            border-radius: 10px;
            font-size: 0.95rem;
            color: #2c3e50;
            background-color: white;
            cursor: pointer;
            transition: all 0.2s ease;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23A0522D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 16px;
        }
        
        .filter-select:hover {
            border-color: #A0522D;
        }
        
        .filter-select:focus {
            outline: none;
            border-color: #A0522D;
            box-shadow: 0 0 0 3px rgba(160, 82, 45, 0.1);
        }
        
        .btn-apply {
            background: #A0522D;
            color: white;
            border: none;
            padding: 0 25px;
            height: 42px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        
        .btn-apply:hover {
            background: #8B4513;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(160, 82, 45, 0.3);
        }
        
        /* Активные фильтры */
        .active-filters {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 10px 15px;
            background: #FAEBD7;
            border-radius: 30px;
            font-size: 0.9rem;
            margin-bottom: 20px;
            border: 1px solid #DEB887;
        }
        
        .active-filters-label {
            color: #6c757d;
            font-weight: 500;
        }
        
        .filter-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        
        .filter-tag {
            background: white;
            border: 1px solid #DEB887;
            padding: 6px 12px;
            border-radius: 30px;
            font-size: 0.9rem;
            color: #2c3e50;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .remove-tag {
            color: #adb5bd;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
        }
        
        .remove-tag:hover {
            color: #dc3545;
        }

        /* ===== КАРТОЧКИ МАТЕРИАЛОВ ===== */
        .product-card {
            background: white;
            border: 1px solid #DEB887;
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 15px;
            box-shadow: 0 4px 8px rgba(160, 82, 45, 0.1);
            transition: all 0.2s ease;
        }
        
        .product-card:hover {
            box-shadow: 0 8px 16px rgba(160, 82, 45, 0.2);
            border-color: #A0522D;
        }
        
        .product-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #DEB887;
        }
        
        .product-name-line {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .product-category {
            background-color: transparent;
            color: #A0522D;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            text-transform: uppercase;
            font-family: 'Verdana', sans-serif;
            border: 2px solid #DEB887;
        }
        
        .divider {
            color: #A0522D;
            font-weight: 600;
        }
        
        .product-name {
            color: #8B4513;
            font-size: 1.2rem;
            font-weight: 600;
            font-family: 'Verdana', sans-serif;
        }
        
        .stock-info {
            display: flex;
            align-items: center;
        }
        
        .stock-amount {
            color: #A0522D;
            font-weight: 600;
            font-size: 0.9rem;
            background-color: #FAEBD7;
            padding: 5px 10px;
            border-radius: 6px;
        }
        
        .product-info-row {
            display: flex;
            margin-bottom: 8px;
            padding: 8px 0;
            border-bottom: 1px dashed #DEB887;
            font-family: 'Verdana', sans-serif;
        }
        
        .product-info-row:last-of-type {
            border-bottom: none;
        }
        
        .info-label {
            width: 100px;
            color: #6c757d;
            font-weight: 500;
        }
        
        .info-value {
            flex: 1;
            color: #2c3e50;
            font-weight: 500;
        }
        
        .price-value {
            color: #A0522D;
            font-weight: 700;
            font-size: 1.1rem;
        }
        
        .product-buttons-container {
            display: flex;
            gap: 10px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 2px solid #DEB887;
        }
        
        .btn-action {
            text-align: center;
            padding: 10px 15px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.2s ease;
            text-decoration: none;
            font-family: 'Verdana', sans-serif;
            border: none;
            cursor: pointer;
        }
        
        .btn-edit {
            background: linear-gradient(135deg, #DEB887 0%, #C17B4A 100%);
            color: #2c3e50;
        }
        
        .btn-edit:hover {
            background: linear-gradient(135deg, #C17B4A 0%, #DEB887 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(160, 82, 45, 0.1);
        }
        
        .btn-add {
            background: linear-gradient(135deg, #A0522D 0%, #8B4513 100%);
            color: white;
        }
        
        .btn-add:hover {
            background: linear-gradient(135deg, #8B4513 0%, #A0522D 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(160, 82, 45, 0.3);
        }
        
        .btn-add:disabled {
            background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
            opacity: 0.6;
        }

        .supplier-select {
            border: 2px solid #DEB887;
            border-radius: 8px;
            padding: 8px;
            font-family: 'Verdana', sans-serif;
            background-color: white;
            width: 100%;
        }
        
        .supplier-select:focus {
            border-color: #A0522D;
            outline: none;
        }

        /* ===== ДОПОЛНИТЕЛЬНЫЕ ЭЛЕМЕНТЫ ===== */
        .text-muted {
            font-family: 'Verdana', sans-serif;
            margin: 0;
            color: #6c757d;
        }
        
        .alert {
            border-radius: 12px;
            border: 1px solid #DEB887;
            background: #FAEBD7;
            border-left: 4px solid #A0522D;
            font-family: 'Verdana', sans-serif;
            padding: 15px 20px;
        }
        
        .alert-link {
            color: #A0522D;
            font-weight: 600;
            text-decoration: none;
        }
        
        .alert-link:hover {
            text-decoration: underline;
        }
        
        i {
            color: #A0522D;
            margin-right: 6px;
        }
        
        .btn-primary i, .btn-clear i, .btn-apply i, .btn-action i {
            color: inherit;
        }

        /* ===== АДАПТИВНОСТЬ ===== */
        @media (max-width: 768px) {
            .filters-row {
                flex-direction: column;
                gap: 10px;
            }
            
            .filter-group {
                width: 100%;
            }
            
            .btn-apply {
                width: 100%;
                justify-content: center;
            }
            
            .active-filters {
                flex-direction: column;
                align-items: flex-start;
                border-radius: 12px;
            }
            
            .product-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            
            .stock-info {
                width: 100%;
                justify-content: flex-start;
            }
            
            .product-info-row {
                flex-direction: column;
            }
            
            .info-label {
                width: 100%;
                margin-bottom: 3px;
            }
            
            .product-buttons-container {
                flex-direction: column;
            }
            
            .supplier-select-wrapper {
                flex-direction: column;
            }
            
            .d-flex.gap-2 {
                flex-direction: column;
            }
            
            .d-flex.gap-2 .btn {
                width: 100%;
            }
        }
    </style>
{% endblock %}