//import mariadb
import ownConn from "../dbConfig.js";

import bcrypt from "bcryptjs";
import jwt from "jsonwebtoken";
import { v4 as uuidv4 } from 'uuid';

import {
    getUsers,
    getUserById,
    updateUserById,
    deleteUserById,
    getSelectedUsersByUser,
} from "../models/usersModel.js";

//insert user to databased
export const signUp = async (req, res, next) => {
    try {
        let sql = `SELECT id FROM users WHERE LOWER(username) = LOWER(?)`;
        const result = await ownConn.execute(sql, [req.body.username])

        if (result.length > 0) { //username already exists
            return res.status(409).send({
                message: 'This username is already in use!'
            });
        } else { // username not in use
            bcrypt.hash(req.body.password, 10, (err, hash) => {
                if (err) {
                    throw err;
                    return res.status(500).send({
                        message: err,
                    });
                } else {
                    const currentTime = new Date();
                    const options = {
                        timeZone: 'Europe/Berlin',
                        year: 'numeric',
                        month: '2-digit',
                        day: '2-digit',
                        hour: '2-digit',
                        minute: '2-digit'
                    };
                    const dateTimeString = currentTime.toLocaleString('de-DE', options);
                    const results = ownConn.query(`INSERT INTO users(id, username, password, registered, fullName, email, phonenumber, address, city, postcode, adminBool, technicianBool, readerBool, darkModeBool) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
                        [
                            uuidv4(),
                            req.body.username,
                            hash,
                            dateTimeString,
                            req.body.fullName,
                            req.body.email,
                            req.body.phonenumber,
                            req.body.address,
                            req.body.city,
                            req.body.postcode,
                            req.body.adminBool,
                            req.body.technicianBool,
                            req.body.readerBool,
                            req.body.darkModeBool,
                        ]);
                    return res.status(201).send({
                        message: "Registered!",
                    })
                }
            })
        }
    }
    catch (err) {
        // Manage Errors
        console.log("SQL error : ", err);
        result(err, null);
    }
};

// Update user password to Database
export const updatePasswordById = async (req, res, next) => {
    try {
        const id = req.body.id;
        let sql = `UPDATE users SET password = ? WHERE id = ?`;
        bcrypt.hash(req.body.password, 10, async (err, hash) => {
            if (err) {
                throw err;
                return res.status(500).send({
                    message: err,
                });
            } else {
                const results = await ownConn.query(sql, [hash, id]);
                return res.status(200).send({
                    message: 'Password changed!',
                });
            }
        });
    }
    catch (err) {
        // Manage Errors
        console.log("SQL error : ", err);
        result(err, null);
    }
};

export const login = async (req, res, next) => {
    try {
        let sql = `SELECT * FROM users WHERE username = ?`;
        const result = await ownConn.execute(sql, [req.body.username]);
        if (!result.length) {
            return res.status(400).send({
                message: 'Username or password incorrect!',
            });
        }
        bcrypt.compare(
            req.body.password,
            result[0]['password'],
            async (bErr, bResult) => {
                if (bErr) {
                    return res.status(400).send({
                        message: 'Username or password incorrect!',
                    });
                }
                if (bResult) {
                    // password match
                    const authtoken = jwt.sign(
                        {
                            username: result[0].username,
                            userId: result[0].id,
                        },
                        'SECRETTUEITKEY',
                        { expiresIn: '300s' } // 5min
                    );
                    const refreshtoken = jwt.sign(
                        {
                            username: result[0].username,
                            userId: result[0].id,
                        },
                        'SECRETTUEITKEY',
                        { expiresIn: '7d' }
                    );
                    let sql1 = `UPDATE users SET lastLogin = ? WHERE id = ?`;
                    const currentTime = new Date();
                    const options = {
                        timeZone: 'Europe/Berlin',
                        year: 'numeric',
                        month: '2-digit',
                        day: '2-digit',
                        hour: '2-digit',
                        minute: '2-digit'
                    };
                    const dateTimeString = currentTime.toLocaleString('de-DE', options);
                    const results = await ownConn.query(sql1, [dateTimeString, result[0].id]);
                    return res.status(200).send({
                        message: 'Logged in!',
                        token: { authToken: authtoken, refreshToken: refreshtoken },
                        user: result[0],
                    });
                }
                return res.status(400).send({
                    message: 'Username or password incorrect!',
                });
            }
        );
    }
    catch (err) {
        // Manage Errors
        console.log("SQL error : ", err);
    }
};

//get all users
export const showUsers = (req, res) => {
    getUsers((err, results) => {
        if (err) {
            res.send(err);
        } else {
            res.json(results);
        }
    });
};

//get single user by id
export const showUserById = (req, res) => {
    getUserById(req.params.id, (err, results) => {
        if (err) {
            res.send(err);
        } else {
            res.json(results);
        }
    });
};

//get all selected users by user
export const showSelectedUsersByUser = (req, res) => {
    getSelectedUsersByUser(req.params.id, (err, results) => {
        if (err) {
            res.send(err);
        } else {
            res.json(results);
        }
    });
};


// Update user
export const updateUser = (req, res) => {
    const data = req.body;
    updateUserById(data, (err, results) => {
        if (err) {
            res.send(err);
        } else {
            res.json(results);
        }
    });
};

// Delete user
export const deleteUser = (req, res) => {
    const id = req.params.id;
    deleteUserById(id, (err, results) => {
        if (err) {
            res.send(err);
        } else {
            res.json(results);
        }
    });
};