const predefined = {
    tpl1: {
        controls: [
            {
                type: 'text',
                label: '动态字段1',
                name: 'dy_1',
                required: true
            },

            {
                type: 'text',
                label: '动态字段2',
                name: 'dy_2'
            }
        ]
    },

    tpl2: {
        type: 'panel',
        title: '不是非得是 controls',
        body: '也可以是其他渲染器'
    },

    tpl3: {
        type: 'tpl',
        tpl: '简单点好。'
    },
};

module.exports = function(req, res) {
    const tpl = req.query.tpl;

    if (predefined[tpl]) {
        return res.json({
            status: 0,
            msg: '',
            data: predefined[tpl]
        });
    }

    else {
        return res.json({
            status: 404,
            msg: 'Not Found'
        });
    }
}