const bcrypt = require("bcryptjs/dist/bcrypt")
const { Router } = require("express")
const User = require("../database/models/user")
const {getUserValidator} = require("../validators/users")

const getUsers = async (req, res, next) => {
    const allUsers = await User.find({})
    return res.status(200).send(allUsers)
}

const getUser = async (req, res, next) => {
    const result = getUserValidator.validate(req.body)
    console.log(result)
    try {
        const id = req.params.id
        if (!id) {
            return res.status(400).send('Bad request')
        }

        const user = await User.findById(id)
        if (!user) {
            return res.status(404).send("User with the id of: " + id + " doesnt exist")
        }

        return res.json(user)
    } catch (e) {
        next(e)
    }
}

const createUser = async (req, res, next) => {
    try {
        const userModel = req.body
        if (Object.entries(userModel).length === 0) {
            return res.status(400).send('Object cant be empty')
        }

        const err = getUserValidator.validate(userModel).error
        if (err) {
            return res.status(400).send(err.message)
        }

        const newUser = new User(userModel)
        newUser.password = await bcrypt.hash(newUser.password, 8)
        await newUser.save()

        return res.status(201).json(newUser)
    } catch (e) {
        next(e)
    }
}

const updateUser = async (req, res, next) => {
    try {
        const id = req.params.id
        const objBody = req.body
        if (Object.entries(objBody).length == 0) {
            return res.status(400).send('Invalid input parameters')
        }

        const err = getUserValidator.validate(objBody).error
        if (err) {
            return res.status(400).send(err.message)
        }

        let user = await User.findById(id);
        if (!user) {
            return res.status(404).send("User with the id of: " + id + " doesnt exist")
        }

        user.name = objBody.name
        user.password = objBody.password
        user.email = objBody.email

        await User.updateOne(user)

        return res.status(200).send('User updated successfully')
    } catch (e) {
        next(e)
    }
}

const updateUserContacts = async (req, res, next) => {
    try {
        userFound = true
        if (!userFound) {
            return res.status(404).send('user not found')
        }
        if (Object.entries(req.body).length == 0) {
            return res.status(400).send('invalid input parameters')
        }
        return res.status(200).send('user contacts updated successfully')
    } catch (e) {
        next(e)
    }
}

const deleteUser = async (req, res, next) => {
    try {
        const id = req.params.id
        if (!id) {
            return res.status(400).send('You need to provide valid Id')
        }

        const user = await User.findById(id)
        if (!user) {
            return res.status(404).send("User with the id of: " + id + " doesnt exist")
        }

        await User.deleteOne(user)

        return res.status(204).send('Deleting user with id of ' + id)
    } catch (e) {
        next(e)
    }
}

module.exports = { getUsers, getUser, createUser, updateUser, updateUserContacts, deleteUser }