layui.use(['table', 'form', 'layer'], function(){
    var table = layui.table;
    var form = layui.form;
    var layer = layui.layer;
    var $ = layui.$;
    
    // 加载设备型号列表
    fetch('/api/devices/models', {
        credentials: 'include'
    })
    .then(response => response.json())
    .then(result => {
        if(result.data) {
            var options = '<option value="">全部</option>';
            result.data.forEach(function(model) {
                options += '<option value="' + model.model_name + '">' + model.model_name + '</option>';
            });
            $('select[name=device_model]').html(options);
            form.render('select');
        }
    });
    
    // 初始化表格
    table.render({
        elem: '#device-table',
        url: '/api/devices/registered',  // 已注册设备列表接口
        headers: undefined,
        toolbar: '#tableToolbar',
        defaultToolbar: ['filter', 'exports', 'print'],
        cols: [[
            {type: 'checkbox'},
            {field: 'uid', title: '设备UID', width: 180},
            {field: 'device_model', title: '设备型号', width: 120},
            {field: 'license_code', title: '授权码', width: 180},
            {field: 'license_type', title: '授权类型', width: 100, templet: function(d){
                var types = {
                    'time': '时间授权',
                    'count': '次数授权',
                    'permanent': '永久授权'
                };
                return types[d.license_type] || '-';
            }},
            {field: 'expire_time', title: '过期时间', width: 160, templet: function(d){
                return d.expire_time ? new Date(d.expire_time).toLocaleString() : '-';
            }},
            {field: 'start_count', title: '启动次数', width: 100},
            {field: 'status', title: '状态', width: 100, templet: function(d){
                if(d.status === 'active') return '<span class="layui-badge layui-bg-green">正常</span>';
                if(d.status === 'expired') return '<span class="layui-badge layui-bg-orange">已过期</span>';
                return '<span class="layui-badge layui-bg-gray">未激活</span>';
            }},
            {field: 'last_active_at', title: '最后活跃', width: 160, templet: function(d){
                return d.last_active_at ? new Date(d.last_active_at).toLocaleString() : '-';
            }},
            {fixed: 'right', title: '操作', toolbar: '#tableRowBar', width: 250}
        ]],
        page: true,
        parseData: function(res) {
            if (res.code === 401) {
                window.location.href = '/login';
                return;
            }
            return res;
        }
    });
    
    // 表格工具栏事件
    table.on('toolbar(device-table)', function(obj){
        switch(obj.event){
            case 'refresh':
                table.reload('device-table');
                break;
        }
    });
    
    // 行工具栏事件
    table.on('tool(device-table)', function(obj){
        var data = obj.data;
        
        switch(obj.event){
            case 'view':
                layer.open({
                    type: 1,
                    title: '设备详情',
                    area: ['600px', '500px'],
                    content: laytpl($('#deviceDetailTpl').html()).render(data)
                });
                break;
            case 'bind':
                layer.prompt({
                    formType: 0,
                    value: '',
                    title: '请输入授权码',
                    area: ['300px', '150px']
                }, function(value, index, elem){
                    // 绑定授权码
                    fetch('/api/devices/' + data.uid + '/license', {
                        method: 'POST',
                        headers: {
                            'Content-Type': 'application/json'
                        },
                        credentials: 'include',
                        body: JSON.stringify({
                            license_code: value
                        })
                    })
                    .then(response => response.json())
                    .then(result => {
                        if(result.error) {
                            layer.msg(result.error);
                            return;
                        }
                        layer.msg('绑定成功');
                        table.reload('device-table');
                        layer.close(index);
                    })
                    .catch(error => {
                        layer.msg('绑定失败：' + error.message);
                    });
                });
                break;
            case 'logs':
                layer.open({
                    type: 2,
                    title: '设备日志',
                    area: ['800px', '600px'],
                    content: '/admin/device-logs?uid=' + data.uid
                });
                break;
            case 'revoke':
                layer.confirm('确定要撤销该设备的授权吗？', function(index){
                    fetch('/api/devices/' + data.uid + '/license', {
                        method: 'DELETE',
                        credentials: 'include'
                    })
                    .then(response => response.json())
                    .then(result => {
                        if(result.error) {
                            layer.msg(result.error);
                            return;
                        }
                        layer.msg('撤销成功');
                        table.reload('device-table');
                    })
                    .catch(error => {
                        layer.msg('撤销失败：' + error.message);
                    });
                    layer.close(index);
                });
                break;
        }
    });
    
    // 搜索表单提交
    form.on('submit(search)', function(data){
        table.reload('device-table', {
            where: data.field,
            page: {
                curr: 1
            }
        });
        return false;
    });
    
    // 导出设备列表
    $('#export-devices').on('click', function(){
        var checkStatus = table.checkStatus('device-table');
        var data = checkStatus.data;
        if(data.length === 0){
            layer.msg('请选择要导出的设备');
            return;
        }
        
        // 创建CSV内容
        var csv = '设备UID,设备型号,授权码,授权类型,过期时间,启动次数,状态,最后活跃\n';
        data.forEach(function(item){
            csv += [
                item.uid,
                item.device_model,
                item.license_code || '',
                item.license_type || '',
                item.expire_time ? new Date(item.expire_time).toLocaleString() : '',
                item.start_count,
                item.status,
                item.last_active_at ? new Date(item.last_active_at).toLocaleString() : ''
            ].join(',') + '\n';
        });
        
        // 下载文件
        var blob = new Blob([csv], { type: 'text/csv;charset=utf-8;' });
        var link = document.createElement("a");
        if (link.download !== undefined) {
            var url = URL.createObjectURL(blob);
            link.setAttribute("href", url);
            link.setAttribute("download", "devices.csv");
            link.style.visibility = 'hidden';
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link);
        }
    });
});