import DefineMap from 'can-define/map/map';
import feathers from 'feathers/client';
import io from 'steal-socket.io';
import socketio from 'feathers-socketio/client';
import auth from 'feathers-authentication-client';
import hooks from 'feathers-hooks';
import Debug from '~/utils/debug';
import loader from '@loader';

const socket = io(loader.serviceBaseURL, {
    transports: ['websocket']
});

export const FeathersModel = DefineMap.extend({ seal: false },{
    init () {
        this.debug = new Debug(window, {debug: false, control: 'FeathersClient'});
    },
    key: {
        value () {
            return 'feathers-jwt';
        }
    },
    feathersClient: {
        type: 'function',
        value () {
            return feathers()
            .configure(socketio(socket))
            .configure(hooks())
            .configure(auth({
                storageKey: this.key,
                storage: window.localStorage
            }));
        }
    },
    auth (email, pass) {
        let token,
            strat = undefined;

        if (email !== undefined && pass !== undefined) {
            strat = {
                strategy: 'local',
                email: email,
                password: pass
            };
        }

        return this.feathersClient.authenticate(strat)
        .then(response => {
            token = response.accessToken;
            return this.feathersClient.passport.verifyJWT(token);
        })
        .then(payload => {
            return this.feathersClient.service('users').get(payload.userId);
        })
        .then(user => {
            this.feathersClient.set('user', user);
            return (email === undefined) ? this.feathersClient.get('user') : token;
        })
        .catch(err => {
            return err;
        });
    }
});

export default FeathersModel;