'use strict';

const _ = require('lodash');
const httpStatus = require('http-status');
const controllerHelper = require('../../helpers/controller.helper');
const messageHelper = require('../../helpers/message.helper');
const securityHelper = require('../../helpers/security.helper');
const authService = require('./auth.service');


////////////////////////////////////////////////////////////////////////////////
// CONSTANTS
////////////////////////////////////////////////////////////////////////////////

// Module Name
const MODULE_NAME = '[auth.controller]';

////////////////////////////////////////////////////////////////////////////////
// PUBLIC METHODS
////////////////////////////////////////////////////////////////////////////////

async function login(req, res, next) {
    try {
        const data = {
            id: req.user.id,
            email: req.user.email
        };

        const tokens = securityHelper.generateToken(data);

        res.status(httpStatus.OK).json({
            token: tokens.token,
            refreshToken: tokens.refreshToken,
            user: data,
        });        
    } catch (error) {
        controllerHelper.handleErrorResponse(MODULE_NAME, login.name, error, res)
    }
}

async function login2(req, res, next) {
    try {
        res.status(httpStatus.OK).json({
//            token: tokens.token,
//            refreshToken: tokens.refreshToken,
//            user: data,
        })
    } catch (error) {
        controllerHelper.handleErrorResponse(MODULE_NAME, login.name, error, res)
    }
}

async function loginWithPhone(req, res, next) {
    try {
        console.log(req.user);
        const findOptions = {
            phone: req.user.phoneNumber,
            fbuid: req.user.uid
        };

        //Comprobamos si el usuario ya existe en nuestro sistema
        let _user = await authService.extraMethods.findUser(findOptions);
        _user = _user.toJSON();

        const tokenData = {
            id: _user.id,
            email: _user.email,
            phone: _user.phone,
            fbuid: _user.fbuid,
        };
        const tokens = securityHelper.generateToken(tokenData);

        _user.token = tokens.token;
        return controllerHelper.handleResultResponse(_user, null, req.params, res, httpStatus.OK);
    } catch (error) {
        return controllerHelper.handleErrorResponse(MODULE_NAME, login.name, error, res)
    }
}

async function register(req, res, next) {

    function cleanAdminData(user) {
        let cUser = user;
        delete cUser.lastLogin;
        delete cUser.state;
        delete cUser.createdAt;
        delete cUser.updatedAt;
        return cUser;
    }

    const values = {
        phone: req.body.phone,
        fbuid: req.body.fbuid
    };

    const tokenData = {
        phone: values.phone,
        fbuid: values.fbuid,
    };
    const tokens = securityHelper.generateToken(tokenData);

    //Comprobamos si el usuario ya existe en nuestro sistema
    let newUser = await authService.extraMethods.findUser(values);
    if (!newUser) {
        try {
            const data = {
                refresh_token: tokens.refreshToken,
                phone: req.body.phone,
                fbuid: req.body.fbuid,
                email: req.body.email, 
                name: req.body.name,
                surname: req.body.surname,
                entityid: req.body.entityid,
                accessibility: req.body.accesssibility
            };

            newUser = await authService.extraMethods.createUser(data);            

        } catch (error) {
            console.error(error);
            return controllerHelper.handleErrorResponse(MODULE_NAME, register.name, error, res);
        }
    };

    if (newUser) {
        newUser = newUser.toJSON();
        newUser = cleanAdminData(newUser);
        newUser.token = tokens.token;
    }
    
    return controllerHelper.handleResultResponse(newUser, null, req.params, res, httpStatus.OK);    
}

async function regenerateToken(req, res, next) {
    const refreshToken = req.body.refreshToken;
    const phone = req.body.phone;
    const user = await authService.extraMethods.findUserByRefreshToken(refreshToken);

    if (user && user.phone === phone) {
        const values = {
            phone: user.phone,
            platform: user.fbuid
        };
        
        try {
            const tokens = securityHelper.generateToken(values);
            await authService.extraMethods.updateUserRefreshToken(user.id, tokens.refreshToken);
            const result = { token: tokens.token };
            return controllerHelper.handleResultResponse(result, null, req.params, res, httpStatus.OK);
        } catch(error) {
            return controllerHelper.handleErrorResponse(MODULE_NAME, regenerateToken.name, error, res);
        }
    } else {
        return controllerHelper.handleResultResponse(null, null, req.params, res, httpStatus.UNAUTHORIZED);
    }
}

async function rejectToken(req, res, next) {
    const refreshToken = req.body.refreshToken;
    const user = await authService.extraMethods.findUserByRefreshToken(refreshToken);

    if (user && user.token === refreshToken ) {        
        try {
            await authService.extraMethods.deleteRefreshToken(refreshToken);
            return controllerHelper.handleResultResponse(result, null, req.params, res, httpStatus.OK);
        } catch (error) {
            return controllerHelper.handleErrorResponse(MODULE_NAME, rejectToken.name, error, res);
        }    
    } else {
        return controllerHelper.handleResultResponse(null, null, req.params, res, httpStatus.NOT_FOUND);
    }
}


module.exports = {
    login,
    login2,    
    loginWithPhone,
    register,
    regenerateToken,
    rejectToken,
    MODULE_NAME
}