{% extends "base.html" %}

{% block content %}
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card">
                <div class="card-header">
                    <h2 class="card-title mb-0">
                        <i class="fas fa-cart-plus"></i> Добавление продажи
                    </h2>
                </div>
                <div class="card-body">
                    <!-- Информация о партнере -->
                    <div class="partner-info mb-4 p-3 bg-light rounded">
                        <h5>Партнер: {{ partner.name }}</h5>
                        <p class="mb-1"><strong>Тип:</strong> {{ partner.partner_type_name }}</p>
                        <p class="mb-1"><strong>Email:</strong> {{ partner.email }}</p>
                        <p class="mb-0"><strong>Телефон:</strong> {{ partner.phone or 'Не указан' }}</p>
                    </div>

                    <!-- Flash сообщения -->
                    {% with messages = get_flashed_messages(with_categories=true) %}
                        {% if messages %}
                            {% for category, message in messages %}
                                <div class="alert alert-{{ 'danger' if category == 'error' else 'success' }} alert-dismissible fade show">
                                    {{ message }}
                                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                                </div>
                            {% endfor %}
                        {% endif %}
                    {% endwith %}

                    <form method="POST" id="saleForm">
                        <div class="row">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="product_id" class="form-label">Товар *</label>
                                    <select class="form-select" id="product_id" name="product_id" required>
                                        <option value="">Выберите товар</option>
                                        {% for product in products %}
                                            <option value="{{ product.id }}"
                                                    data-price="{{ product.min_partner_price }}"
                                                    data-name="{{ product.product_name }}">
                                                {{ product.product_name }} ({{ product.article }}) - {{ product.min_partner_price }} руб.
                                            </option>
                                        {% endfor %}
                                    </select>
                                </div>

                                <div class="mb-3">
                                    <label for="quantity" class="form-label">Количество *</label>
                                    <input type="number" class="form-control" id="quantity" name="quantity"
                                           min="1" required value="1">
                                </div>
                            </div>

                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="sale_price" class="form-label">Цена продажи *</label>
                                    <input type="number" class="form-control" id="sale_price" name="sale_price"
                                           step="0.01" min="0.01" required>
                                    <div class="form-text">Минимальная цена: <span id="minPrice">0</span> руб.</div>
                                </div>

                                <div class="mb-3">
                                    <label for="sale_date" class="form-label">Дата продажи *</label>
                                    <input type="date" class="form-control" id="sale_date" name="sale_date"
                                           required value="{{ today }}">
                                </div>
                            </div>
                        </div>

                        <!-- Автоматический расчет суммы -->
                        <div class="row mt-3">
                            <div class="col-12">
                                <div class="calculation-section p-3 bg-light rounded">
                                    <div class="row">
                                        <div class="col-md-4">
                                            <strong>Количество:</strong>
                                            <span id="displayQuantity">1</span> ед.
                                        </div>
                                        <div class="col-md-4">
                                            <strong>Цена за единицу:</strong>
                                            <span id="displayPrice">0</span> руб.
                                        </div>
                                        <div class="col-md-4">
                                            <strong class="text-primary">Итоговая сумма:</strong>
                                            <span id="totalAmount" class="fs-5 text-success">0</span> руб.
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <div class="row mt-4">
                            <div class="col-12">
                                <div class="d-flex justify-content-between">
                                    <a href="{{ url_for('sales_history', partner_id=partner.id) }}"
                                       class="btn btn-secondary">
                                        <i class="fas fa-arrow-left"></i> Назад к истории
                                    </a>
                                    <button type="submit" class="btn btn-success">
                                        <i class="fas fa-save"></i> Сохранить продажу
                                    </button>
                                </div>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
document.addEventListener('DOMContentLoaded', function() {
    console.log('Script loaded!');

    const productSelect = document.getElementById('product_id');
    const quantityInput = document.getElementById('quantity');
    const priceInput = document.getElementById('sale_price');
    const minPriceSpan = document.getElementById('minPrice');
    const totalAmountSpan = document.getElementById('totalAmount');
    const displayQuantitySpan = document.getElementById('displayQuantity');
    const displayPriceSpan = document.getElementById('displayPrice');

    // Устанавливаем сегодняшнюю дату по умолчанию
    const today = new Date().toISOString().split('T')[0];
    document.getElementById('sale_date').value = today;

    // Обновление цены при выборе товара
    productSelect.addEventListener('change', function() {
        console.log('Product changed');
        const selectedOption = this.options[this.selectedIndex];
        const minPrice = selectedOption.getAttribute('data-price');
        console.log('Min price:', minPrice);

        if (minPrice) {
            minPriceSpan.textContent = minPrice;
            priceInput.value = minPrice;
            priceInput.min = minPrice;
            displayPriceSpan.textContent = parseFloat(minPrice).toFixed(2);
            calculateTotal();
        }
    });

    // Расчет общей суммы
    function calculateTotal() {
        const quantity = parseInt(quantityInput.value) || 0;
        const price = parseFloat(priceInput.value) || 0;
        const total = quantity * price;

        displayQuantitySpan.textContent = quantity;
        displayPriceSpan.textContent = price.toFixed(2);
        totalAmountSpan.textContent = total.toFixed(2);
    }

    // Слушатели изменений
    quantityInput.addEventListener('input', calculateTotal);
    priceInput.addEventListener('input', function() {
        displayPriceSpan.textContent = parseFloat(this.value || 0).toFixed(2);
        calculateTotal();
    });

    // Валидация формы
    document.getElementById('saleForm').addEventListener('submit', function(e) {
        const minPrice = parseFloat(minPriceSpan.textContent) || 0;
        const salePrice = parseFloat(priceInput.value) || 0;

        if (salePrice < minPrice) {
            e.preventDefault();
            alert(`Цена продажи не может быть ниже минимальной цены (${minPrice} руб.)`);
            return false;
        }
    });

    // Инициализация расчета
    calculateTotal();
});
</script>
{% endblock %}