let actions = {
    list: (req, res) => {
        res.status(200).json(userlist);
    },
    get: (req, res) => {
        let findUserList = userlist.filter(user => user.uuid === parseInt(req.params.uuid));
        if (findUserList.length > 0) return res.status(200).json(findUserList[0]);
        else return res.status(404).json({error: 'User not found'});
    },
    add: async (req, res) => {
        if(!validateUser(req.bodyParser)) return res.status(400).json({error:'Incorrect data'});
        const lastUser = userlist[userlist.length-1];
        const newUser = {
        uuid: lastUser.uuid+1,
        name: req.body.name,
        password: req.body.password,
        profession: req.body.profession
        }
        userlist.push(newUser);
        await saveDb();
        res.status(201).json(newUser);
    },
    update: async (req, res) => {
        if(!validateUser(req.body)) return res.status(400).json({error:'Incorrect data'});
        let userFound = userlist.find(user => user.uuid === parseInt(req.params.uuid));
        if (!userFound) return res.status(404).json({error:'User not found'});
        Object.assign(userFound, req.body);
        await saveDb();
        res.status(200).json(userFound);
    },
    delete: async (req, res) => {
        userlist = userlist.filter(user => user.uuid !== parseInt(req.params.uuid));
        await saveDb();
        res.status(200),json({message: 'Delete successed.'});
    },
    index: (req, res) => {
        res.status(200);
        res.setHeader('Content-Type', 'text/html');
        res.body = fs.createReadStream(path.join(__dirname, 'index.html'));
    }
}