{% extends "base.html" %}

{% block title %}设备管理 - 软件授权管理系统{% endblock %}

{% block page_title %}设备管理{% endblock %}

{% block content %}
<!-- 搜索表单 -->
<div class="card shadow mb-4">
    <div class="card-body">
        <form id="search-form" class="row g-3">
            <div class="col-md-3">
                <label for="search-keyword" class="form-label">关键词搜索</label>
                <input type="text" class="form-control" id="search-keyword" placeholder="设备ID或机器码">
            </div>
            <div class="col-md-2">
                <label for="search-status" class="form-label">状态</label>
                <select class="form-select" id="search-status">
                    <option value="">全部状态</option>
                    <option value="0">离线</option>
                    <option value="1">在线</option>
                    <option value="2">禁用</option>
                </select>
            </div>
            <div class="col-md-3">
                <label for="search-product" class="form-label">产品</label>
                <input type="text" class="form-control" id="search-product" placeholder="产品ID">
            </div>
            <div class="col-md-2">
                <label for="search-license" class="form-label">卡密</label>
                <input type="text" class="form-control" id="search-license" placeholder="卡密">
            </div>
            <div class="col-md-2 d-flex align-items-end">
                <div class="btn-group" role="group">
                    <button type="submit" class="btn btn-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-undo me-2"></i>重置
                    </button>
                </div>
            </div>
        </form>
    </div>
</div>

<!-- 批量操作栏 -->
<div class="card shadow mb-4">
    <div class="card-body">
        <div class="d-flex justify-content-between align-items-center">
            <div>
                <button type="button" class="btn btn-danger btn-sm" id="batch-delete-btn" style="display: none;">
                    <i class="fas fa-trash me-1"></i>批量删除
                </button>
                <div class="btn-group btn-group-sm" id="batch-status-btn" style="display: none;">
                    <button type="button" class="btn btn-outline-success" id="batch-enable-btn">
                        <i class="fas fa-check-circle me-1"></i>批量启用
                    </button>
                    <button type="button" class="btn btn-outline-secondary" id="batch-disable-btn">
                        <i class="fas fa-ban me-1"></i>批量禁用
                    </button>
                </div>
            </div>
            <div class="text-muted small">
                <span id="selected-count">已选择 0 项</span>
            </div>
        </div>
    </div>
</div>

<!-- 设备列表 -->
<div class="card shadow">
    <div class="card-body">
        <div class="table-responsive">
            <table class="table table-hover">
                <thead class="table-light">
                    <tr>
                        <th width="50">
                            <input type="checkbox" id="select-all-checkbox" class="form-check-input">
                        </th>
                        <th>设备ID</th>
                        <th>产品/卡密</th>
                        <th>机器码</th>
                        <th>IP地址</th>
                        <th>状态</th>
                        <th>激活时间</th>
                        <th>最后验证</th>
                        <th>操作</th>
                    </tr>
                </thead>
                <tbody id="device-list">
                    <tr>
                        <td colspan="9" class="text-center text-muted">加载中...</td>
                    </tr>
                </tbody>
            </table>
        </div>
        
        <!-- 分页 -->
        <nav aria-label="分页导航">
            <ul class="pagination justify-content-center mb-0" id="pagination">
            </ul>
        </nav>
    </div>
</div>

<!-- 批量删除确认模态框 -->
<div class="modal fade" id="batchDeleteModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">确认批量删除</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                确定要删除选中的 <strong id="batch-delete-count"></strong> 个设备吗？此操作不可恢复。
            </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-batch-delete">确定删除</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

<script>
let currentPage = 1;

// 页面加载完成后初始化
document.addEventListener('DOMContentLoaded', function() {
    // 从URL参数中读取筛选条件
    const urlParams = new URLSearchParams(window.location.search);
    if (urlParams.has('product_id')) {
        document.getElementById('search-product').value = urlParams.get('product_id');
    }
    if (urlParams.has('software_version')) {
        // 这里可以添加版本筛选，但当前UI没有对应的输入框
    }
    if (urlParams.has('status')) {
        document.getElementById('search-status').value = urlParams.get('status');
    }
    
    loadDevices();
    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();
        currentPage = 1;
        loadDevices();
    });

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

    // 批量删除确认
    document.getElementById('confirm-batch-delete').addEventListener('click', function() {
        batchDeleteDevices();
    });

    // 全选/取消全选
    document.getElementById('select-all-checkbox').addEventListener('change', function() {
        const checkboxes = document.querySelectorAll('.device-checkbox');
        checkboxes.forEach(checkbox => {
            checkbox.checked = this.checked;
        });
        updateBatchButtons();
    });

    // 批量启用
    document.getElementById('batch-enable-btn').addEventListener('click', function(e) {
        e.preventDefault();
        batchUpdateDeviceStatus(1);
    });

    // 批量禁用
    document.getElementById('batch-disable-btn').addEventListener('click', function(e) {
        e.preventDefault();
        batchUpdateDeviceStatus(2);
    });
}

// 加载设备列表
function loadDevices(page = 1) {
    const params = new URLSearchParams({
        page: page,
        per_page: 10
    });

    // 添加搜索参数
    const keyword = document.getElementById('search-keyword').value.trim();
    const status = document.getElementById('search-status').value;
    const product = document.getElementById('search-product').value.trim();
    const license = document.getElementById('search-license').value.trim();
    
    // 从URL参数中读取额外的筛选条件
    const urlParams = new URLSearchParams(window.location.search);
    const productId = urlParams.get('product_id');
    const softwareVersion = urlParams.get('software_version');

    if (keyword) params.append('keyword', keyword);
    if (status) params.append('status', status);
    if (product) params.append('product', product);
    if (license) params.append('license', license);
    if (productId) params.append('product_id', productId);
    if (softwareVersion) params.append('software_version', softwareVersion);

    apiRequest(`/api/v1/devices?${params}`)
        .then(data => {
            if (data.success) {
                renderDeviceList(data.data.devices);
                renderPagination(data.data.pagination);
            } else {
                showNotification(data.message || '加载设备列表失败', 'error');
            }
        })
        .catch(error => {
            console.error('Failed to load devices:', error);
            showNotification('加载设备列表失败', 'error');
        });
}

// 渲染设备列表
function renderDeviceList(devices) {
    const tbody = document.getElementById('device-list');

    if (devices.length === 0) {
        tbody.innerHTML = '<tr><td colspan="9" class="text-center text-muted">暂无数据</td></tr>';
        return;
    }

    tbody.innerHTML = devices.map(device => `
        <tr>
            <td>
                <input type="checkbox" class="device-checkbox" data-device-id="${device.device_id}">
            </td>
            <td>
                <code>${String(device.device_id).substring(0, 8)}...</code>
                <br><small class="text-muted">${device.device_id}</small>
            </td>
            <td>
                ${device.product_name || '-'}
                <br><small class="text-muted">${device.license_key ? device.license_key.substring(0, 16) + '...' : '-'}</small>
            </td>
            <td>
                <code>${device.machine_code || '-'}</code>
            </td>
            <td>
                ${device.ip_address || '-'}
            </td>
            <td>
                <span class="badge ${getDeviceStatusClass(device.status)}">
                    ${getDeviceStatusText(device.status)}
                </span>
            </td>
            <td>
                <small>${device.activate_time ? formatDate(device.activate_time) : '-'}</small>
            </td>
            <td>
                <small>${device.last_verify_time ? formatDate(device.last_verify_time) : '-'}</small>
            </td>
            <td>
                <div class="btn-group btn-group-sm" role="group">
                    <button type="button" class="btn btn-outline-primary btn-detail"
                            data-device-id="${device.device_id}"
                            title="详情">
                        <i class="fas fa-eye"></i>
                    </button>
                    ${device.status === 1 ? `
                    <button type="button" class="btn btn-outline-warning btn-disable"
                            data-device-id="${device.device_id}"
                            title="禁用">
                        <i class="fas fa-ban"></i>
                    </button>
                    ` : device.status === 2 ? `
                    <button type="button" class="btn btn-outline-success btn-enable"
                            data-device-id="${device.device_id}"
                            title="启用">
                        <i class="fas fa-check"></i>
                    </button>
                    ` : ''}
                    <button type="button" class="btn btn-outline-danger btn-delete"
                            data-device-id="${device.device_id}"
                            title="删除">
                        <i class="fas fa-trash"></i>
                    </button>
                </div>
            </td>
        </tr>
    `).join('');

    // 绑定事件
    document.querySelectorAll('.btn-detail').forEach(btn => {
        btn.addEventListener('click', function() {
            const deviceId = this.dataset.deviceId;
            showDeviceDetail(deviceId);
        });
    });

    document.querySelectorAll('.btn-disable').forEach(btn => {
        btn.addEventListener('click', function() {
            const deviceId = this.dataset.deviceId;
            updateDeviceStatus(deviceId, 2); // 禁用
        });
    });

    document.querySelectorAll('.btn-enable').forEach(btn => {
        btn.addEventListener('click', function() {
            const deviceId = this.dataset.deviceId;
            updateDeviceStatus(deviceId, 1); // 启用
        });
    });

    document.querySelectorAll('.btn-delete').forEach(btn => {
        btn.addEventListener('click', function() {
            const deviceId = this.dataset.deviceId;
            deleteDevice(deviceId);
        });
    });

    // 绑定复选框事件
    document.querySelectorAll('.device-checkbox').forEach(checkbox => {
        checkbox.addEventListener('change', updateBatchButtons);
    });

    // 重置全选复选框
    document.getElementById('select-all-checkbox').checked = false;
    updateBatchButtons();
}

// 获取设备状态文本
function getDeviceStatusText(status) {
    const statusMap = {
        0: '离线',
        1: '在线',
        2: '禁用'
    };
    return statusMap[status] || '未知';
}

// 获取设备状态样式类
function getDeviceStatusClass(status) {
    const classMap = {
        0: 'bg-secondary',
        1: 'bg-success',
        2: 'bg-danger'
    };
    return classMap[status] || 'bg-secondary';
}

// 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;
                loadDevices(page);
            }
        });
    });
}

// 显示设备详情
function showDeviceDetail(deviceId) {
    // 这里可以实现详情弹窗或跳转到详情页
    showNotification('功能开发中...', 'info');
}

// 更新设备状态
function updateDeviceStatus(deviceId, status) {
    const action = status === 1 ? '启用' : '禁用';
    
    if (!confirm(`确定要${action}设备 ${deviceId} 吗？`)) {
        return;
    }

    apiRequest(`/api/v1/devices/${deviceId}/status`, {
        method: 'PUT',
        body: JSON.stringify({ status: status })
    })
    .then(data => {
        if (data.success) {
            showNotification(`${action}成功`, 'success');
            loadDevices(currentPage);
        } else {
            showNotification(data.message || `${action}失败`, 'error');
        }
    })
    .catch(error => {
        console.error('Failed to update device status:', error);
        showNotification(`${action}失败`, 'error');
    });
}

// 删除设备
function deleteDevice(deviceId) {
    if (!confirm(`确定要删除设备 ${deviceId} 吗？`)) {
        return;
    }

    apiRequest(`/api/v1/devices/${deviceId}`, {
        method: 'DELETE'
    })
    .then(data => {
        if (data.success) {
            showNotification('删除成功', 'success');
            loadDevices(currentPage);
        } else {
            showNotification(data.message || '删除失败', 'error');
        }
    })
    .catch(error => {
        console.error('Failed to delete device:', error);
        showNotification('删除失败', 'error');
    });
}

// 更新批量操作按钮状态
function updateBatchButtons() {
    const selectedCount = document.querySelectorAll('.device-checkbox:checked').length;
    const batchDeleteBtn = document.getElementById('batch-delete-btn');
    const batchStatusBtn = document.getElementById('batch-status-btn');
    
    if (selectedCount > 0) {
        batchDeleteBtn.style.display = 'inline-block';
        batchStatusBtn.style.display = 'inline-block';
    } else {
        batchDeleteBtn.style.display = 'none';
        batchStatusBtn.style.display = 'none';
    }
    
    // 更新选中数量显示
    document.getElementById('selected-count').textContent = `已选择 ${selectedCount} 项`;
}

// 显示批量删除确认模态框
function showBatchDeleteModal() {
    const selectedCount = document.querySelectorAll('.device-checkbox:checked').length;
    document.getElementById('batch-delete-count').textContent = selectedCount;

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

// 批量删除设备
function batchDeleteDevices() {
    const selectedCheckboxes = document.querySelectorAll('.device-checkbox:checked');
    const deviceIds = Array.from(selectedCheckboxes).map(checkbox => parseInt(checkbox.dataset.deviceId));

    apiRequest('/api/v1/devices/batch', {
        method: 'DELETE',
        body: JSON.stringify({ device_ids: deviceIds })
    })
    .then(data => {
        if (data.success) {
            showNotification(data.message || '批量删除成功', 'success');
            loadDevices(currentPage);

            // 关闭模态框
            const modal = bootstrap.Modal.getInstance(document.getElementById('batchDeleteModal'));
            modal.hide();

            // 重置全选复选框
            document.getElementById('select-all-checkbox').checked = false;
        } else {
            showNotification(data.message || '批量删除失败', 'error');
            
            // 关闭模态框
            const modal = bootstrap.Modal.getInstance(document.getElementById('batchDeleteModal'));
            modal.hide();
        }
    })
    .catch(error => {
        console.error('Failed to batch delete devices:', error);
        showNotification('批量删除失败', 'error');
        
        // 关闭模态框
        const modal = bootstrap.Modal.getInstance(document.getElementById('batchDeleteModal'));
        modal.hide();
    });
}

// 批量更新设备状态
function batchUpdateDeviceStatus(status) {
    const selectedCheckboxes = document.querySelectorAll('.device-checkbox:checked');
    const deviceIds = Array.from(selectedCheckboxes).map(checkbox => parseInt(checkbox.dataset.deviceId));
    
    if (deviceIds.length === 0) {
        showNotification('请至少选择一个设备', 'warning');
        return;
    }

    apiRequest('/api/v1/devices/batch/status', {
        method: 'PUT',
        body: JSON.stringify({ 
            device_ids: deviceIds,
            status: status
        })
    })
    .then(data => {
        if (data.success) {
            showNotification(data.message || '批量更新状态成功', 'success');
            loadDevices(currentPage);
            
            // 重置全选复选框
            document.getElementById('select-all-checkbox').checked = false;
        } else {
            showNotification(data.message || '批量更新状态失败', 'error');
        }
    })
    .catch(error => {
        console.error('Failed to batch update device status:', error);
        showNotification('批量更新状态失败', 'error');
    });
}

// 在页面加载完成后为批量删除按钮绑定事件
document.addEventListener('DOMContentLoaded', function() {
    const batchDeleteBtn = document.getElementById('batch-delete-btn');
    if (batchDeleteBtn) {
        batchDeleteBtn.addEventListener('click', showBatchDeleteModal);
    }
});
</script>