{% extends "base.html" %}

{% block title %}产品管理 - 软件授权管理系统{% endblock %}

{% block page_title %}产品管理{% endblock %}

{% block page_actions %}
<a href="{{ url_for('web.create_product') }}" class="btn btn-primary">
    <i class="fas fa-plus me-2"></i>
    创建产品
</a>
{% endblock %}

{% block content %}
<!-- 搜索和筛选 -->
<div class="card shadow mb-4">
    <div class="card-body">
        <form id="search-form" class="row g-3">
            <div class="col-md-8">
                <input type="text" class="form-control" id="search-keyword" placeholder="搜索产品名称或描述...">
            </div>
            <div class="col-md-4">
                <button type="submit" class="btn btn-outline-primary">
                    <i class="fas fa-search me-2"></i>
                    搜索
                </button>
                <button type="button" class="btn btn-outline-secondary" id="reset-search">
                    <i class="fas fa-redo me-2"></i>
                    重置
                </button>
            </div>
        </form>
    </div>
</div>

<!-- 产品列表 -->
<div class="card shadow">
    <div class="card-body">
        <div class="table-responsive">
            <table class="table table-hover">
                <thead>
                    <tr>
                        <th>产品ID</th>
                        <th>产品名称</th>
                        <th>描述</th>
                        <th>状态</th>
                        <th>卡密统计</th>
                        <th>设备统计</th>
                        <th>创建时间</th>
                        <th>操作</th>
                    </tr>
                </thead>
                <tbody id="product-list">
                    <tr>
                        <td colspan="8" class="text-center text-muted">
                            <div class="spinner-border spinner-border-sm me-2" role="status"></div>
                            加载中...
                        </td>
                    </tr>
                </tbody>
            </table>
        </div>

        <!-- 分页 -->
        <nav aria-label="产品列表分页">
            <ul class="pagination justify-content-center" id="pagination">
                <!-- 分页将通过JavaScript动态生成 -->
            </ul>
        </nav>
    </div>
</div>

<!-- 删除确认模态框 -->
<div class="modal fade" id="deleteModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">确认删除</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p>确定要删除产品 "<span id="delete-product-name"></span>" 吗？</p>
                <p class="text-danger">注意：删除后无法恢复，且如果产品下有关联的卡密将无法删除。</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
                <button type="button" class="btn btn-danger" id="confirm-delete">确认删除</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
let currentPage = 1;
let currentKeyword = '';

// 页面加载完成后初始化
document.addEventListener('DOMContentLoaded', function() {
    loadProducts();
    initEventListeners();
});

// 初始化事件监听器
function initEventListeners() {
    // 搜索表单
    document.getElementById('search-form').addEventListener('submit', function(e) {
        e.preventDefault();
        currentKeyword = document.getElementById('search-keyword').value.trim();
        currentPage = 1;
        loadProducts();
    });

    // 重置搜索
    document.getElementById('reset-search').addEventListener('click', function() {
        document.getElementById('search-keyword').value = '';
        currentKeyword = '';
        currentPage = 1;
        loadProducts();
    });

    // 删除确认
    document.getElementById('confirm-delete').addEventListener('click', function() {
        const productId = document.getElementById('confirm-delete').dataset.productId;
        deleteProduct(productId);
    });
}

// 加载产品列表
function loadProducts(page = 1) {
    const params = new URLSearchParams({
        page: page,
        per_page: 10
    });

    if (currentKeyword) {
        params.append('keyword', currentKeyword);
    }

    apiRequest(`/api/v1/products?${params}`)
        .then(data => {
            if (data.success) {
                renderProductList(data.data.products);
                renderPagination(data.data.pagination);
            } else {
                showNotification(data.message || '加载产品列表失败', 'error');
            }
        })
        .catch(error => {
            console.error('Failed to load products:', error);
            showNotification('加载产品列表失败', 'error');
        });
}

// 渲染产品列表
function renderProductList(products) {
    const tbody = document.getElementById('product-list');

    if (products.length === 0) {
        tbody.innerHTML = '<tr><td colspan="8" class="text-center text-muted">暂无数据</td></tr>';
        return;
    }

    tbody.innerHTML = products.map(product => `
        <tr>
            <td><code>${product.product_id}</code></td>
            <td>
                <strong>${product.product_name}</strong>
                ${product.latest_version ? `<br><small class="text-muted">最新版本: ${product.latest_version}</small>` : ''}
            </td>
            <td>${product.description || '-'}</td>
            <td>
                <span class="badge ${product.status === 1 ? 'bg-success' : 'bg-secondary'}">
                    ${product.status_name}
                </span>
            </td>
            <td>
                <small>
                    总计: ${product.total_licenses || 0}<br>
                    活跃: <span class="text-success">${product.active_licenses || 0}</span>
                </small>
            </td>
            <td>
                <small>
                    在线: <span class="text-success">${product.total_devices || 0}</span>
                </small>
            </td>
            <td>
                <small>${formatDate(product.create_time)}</small>
            </td>
            <td>
                <div class="btn-group btn-group-sm" role="group">
                    <a href="/products/${product.product_id}" class="btn btn-outline-primary" title="查看">
                        <i class="fas fa-eye"></i>
                    </a>
                    <a href="/products/${product.product_id}/edit" class="btn btn-outline-secondary" title="编辑">
                        <i class="fas fa-edit"></i>
                    </a>
                    <button type="button" class="btn btn-outline-danger btn-delete"
                            data-product-id="${product.product_id}"
                            data-product-name="${product.product_name}"
                            title="删除">
                        <i class="fas fa-trash"></i>
                    </button>
                </div>
            </td>
        </tr>
    `).join('');

    // 绑定删除按钮事件
    document.querySelectorAll('.btn-delete').forEach(btn => {
        btn.addEventListener('click', function() {
            const productId = this.dataset.productId;
            const productName = this.dataset.productName;
            showDeleteModal(productId, productName);
        });
    });
}

// 渲染分页
function renderPagination(pagination) {
    const paginationEl = document.getElementById('pagination');

    if (pagination.pages <= 1) {
        paginationEl.innerHTML = '';
        return;
    }

    let html = '';

    // 上一页
    if (pagination.has_prev) {
        html += `<li class="page-item">
                    <a class="page-link" href="#" data-page="${pagination.page - 1}">上一页</a>
                 </li>`;
    }

    // 页码
    const startPage = Math.max(1, pagination.page - 2);
    const endPage = Math.min(pagination.pages, pagination.page + 2);

    if (startPage > 1) {
        html += `<li class="page-item"><a class="page-link" href="#" data-page="1">1</a></li>`;
        if (startPage > 2) {
            html += `<li class="page-item disabled"><span class="page-link">...</span></li>`;
        }
    }

    for (let i = startPage; i <= endPage; i++) {
        html += `<li class="page-item ${i === pagination.page ? 'active' : ''}">
                    <a class="page-link" href="#" data-page="${i}">${i}</a>
                 </li>`;
    }

    if (endPage < pagination.pages) {
        if (endPage < pagination.pages - 1) {
            html += `<li class="page-item disabled"><span class="page-link">...</span></li>`;
        }
        html += `<li class="page-item"><a class="page-link" href="#" data-page="${pagination.pages}">${pagination.pages}</a></li>`;
    }

    // 下一页
    if (pagination.has_next) {
        html += `<li class="page-item">
                    <a class="page-link" href="#" data-page="${pagination.page + 1}">下一页</a>
                 </li>`;
    }

    paginationEl.innerHTML = html;

    // 绑定分页点击事件
    paginationEl.querySelectorAll('.page-link').forEach(link => {
        link.addEventListener('click', function(e) {
            e.preventDefault();
            const page = parseInt(this.dataset.page);
            if (page && page !== currentPage) {
                currentPage = page;
                loadProducts(page);
            }
        });
    });
}

// 显示删除确认模态框
function showDeleteModal(productId, productName) {
    document.getElementById('delete-product-name').textContent = productName;
    document.getElementById('confirm-delete').dataset.productId = productId;

    const modal = new bootstrap.Modal(document.getElementById('deleteModal'));
    modal.show();
}

// 删除产品
function deleteProduct(productId) {
    apiRequest(`/api/v1/products/${productId}`, {
        method: 'DELETE'
    })
    .then(data => {
        if (data.success) {
            showNotification('产品删除成功', 'success');
            loadProducts(currentPage);

            // 关闭模态框
            const modal = bootstrap.Modal.getInstance(document.getElementById('deleteModal'));
            modal.hide();
        } else {
            showNotification(data.message || '删除失败', 'error');
        }
    })
    .catch(error => {
        console.error('Failed to delete product:', error);
        showNotification('删除失败', 'error');
    });
}
</script>
{% endblock %}