var secret = require('../config').secret,
bcrypt = require('bcrypt');
const passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var HeaderAPIKeyStrategy = require('passport-headerapikey').HeaderAPIKeyStrategy;
var mongoose = require('mongoose');
var Application = mongoose.model('Application');
var User = mongoose.model('User');

passport.use('headerapikey', new HeaderAPIKeyStrategy(
    { header: 'Authorization', prefix: `${process.env.AUTHORIZATION_PREFIX} ` },
    false,
    function (apikey, done) {
        const salt = secret;
        Promise.resolve(bcrypt.hash(apikey, salt)).then(function (encryptedKey) {
            Application.findOne({ encryptedKey: encryptedKey })
                .populate('author')
                .then(function (application) {
                    if (!application) {
                        return done({message: "Application can't be found.", status: 404}, false, false);
                    }
                    console.log('encryptedKey: ', encryptedKey);
                    return done(null, application);
            });
        }).catch(done);
        /*
        const salt = secret;
        Promise.resolve(bcrypt.hash(apikey, salt)).then(function (encryptedKey) {
            Application.findOne({ encryptedKey: encryptedKey })
                .populate('author')
                .then(function (application) {
                    if (!application) {
                        return done({message: "Application can't be found.", status: 404}, false, false);
                    }
                    console.log('encryptedKey: ', encryptedKey);
                    return done(null, application);
                    return {app: application, prom: Promise.resolve(bcrypt.compare(apikey, application.apikey))};
            }).then(function (res) {
                res.prom.then(function (valid) {
                    if (!valid) {
                        return done(null, false, {app: res.app, valid: valid});
                    }
                    return done(null, res.app, valid);
                });
            });
        }).catch(done);
        */
    }
));

passport.use('local', new LocalStrategy({
    usernameField: 'user[email]',
    passwordField: 'user[password]'
}, function (email, password, done) {
    User.findOne({ email: email }).then(function (user) {
        if (!user || !user.validPassword(password)) {
            return done(null, false, { errors: { 'email ou mot de passe': 'invalide' } });
        }
        return done(null, user);
    }).catch(done);
}));