const _ = require('lodash');
const passport = require('passport');
const { Strategy: LocalStrategy } = require('passport-local');
const { Strategy: CustomStrategy } = require('passport-custom');

const models = require('./models');
const securityHelper = require('../helpers/security.helper');

/**
 * Validación sobre firebase
 */
var firebase_admin = require('firebase-admin');
var serviceAccount = require('../firebase-key.json');
firebase_admin.initializeApp({
    credential: firebase_admin.credential.cert(serviceAccount),
    databaseURL: "https://app-lqdvi-v2.firebaseio.com"
});

passport.serializeUser((user, done) => {
    console.log('serializarUsuario');
    done(null, user.id);
});

passport.deserializeUser((id, done) => {
    console.log('desserializarUsuario');
    models.User.findById(id, (err, user) => {
        done(err, user);
    });
});

/**
 * Sign in using Email and Password.
 */
const localEmailOptions = {
    usernameField: 'email',
    passwordField: 'password',
}

passport.use('local-email', new LocalStrategy(localEmailOptions, async (email, password, done) => {
    try {
        const user = await authService.extraMethods.findUser({ email });

        if (_.isNull(user)) {
            return done(null, false, { message: 'User not found' })
        } else {
            const isPasswordValid = await user.comparePassword(password);

            if (!isPasswordValid) {
                return done(null, false, { message: 'Wrong Password' })
            } else {
                delete user.password;
                return done(null, user, { message: 'Logged in Successfully' });
            }
        }
    } catch (error) {
        return done(error);
    }
}));


/**
 * Register using phone.
 */
const localPhoneOptions = {
    usernameField: 'phone',
    passwordField: 'fbuid',    
 }

passport.use('local-phone', new LocalStrategy(localPhoneOptions, async (phone, fbuid, done) => {
    try {
        firebase_admin.auth().getUserByPhoneNumber(phone)
        .then(function(userRecord) {
            if (userRecord && userRecord.toJSON().uid == fbuid) {
                if (userRecord.toJSON().disabled) 
                    return done(null, false, { message: 'User disabled in fb' }) 
                else 
                    return done(null, true, { message: 'Register user' });                    
            }
            else 
                return done(null, false, { message: 'User not validate in fb' });
        })
        .catch(function (error) {
            //Servicio firebase caido o no funciona pero devuelvo el usuario
            return done(null, user, error);
        })
    } catch (error) {
        return done(null, false, error);
    }
}));


// JWT
passport.use('jwt', new CustomStrategy(async (req, done) => {
    const token = ((req && req.headers && req.headers['x-access-token']) ? req.headers['x-access-token'] : null);
    console.log(token);
    if (!token) {
        return done(null, false, { message: 'Unauthorized'});
    }

    return done(null, securityHelper.verify(token));
}));