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import {Alert, AsyncStorage} from 'react-native';
import {observable, action, computed} from 'mobx';
import {autobind} from 'core-decorators';
import io from 'socket.io-client';
import feathers from 'feathers/client'
import hooks from 'feathers-hooks';
import socketio from 'feathers-socketio/client'
import authentication from 'feathers-authentication-client';
const PLACEHOLDER = 'https://raw.githubusercontent.com/feathersjs/feathers-chat/master/public/placeholder.png';
const API_URL = 'http://localhost:3030';
@autobind
export default class Store {
@observable isAuthenticated = false;
@observable isConnecting = false;
@observable user = null;
@observable messages = [];
@observable hasMoreMessages = false;
@observable skip = 0;
constructor() {
const options = {transports: ['websocket'], pingTimeout: 3000, pingInterval: 5000};
const socket = io(API_URL, options);
this.app = feathers()
.configure(socketio(socket))
.configure(hooks())
.configure(authentication({
storage: AsyncStorage // To store our accessToken
}));
this.connect();
this.app.service('messages').on('created', createdMessage => {
this.messages.unshift(this.formatMessage(createdMessage));
});
this.app.service('messages').on('removed', removedMessage => {
this.deleteMessage(removedMessage);
});
if (this.app.get('accessToken')) {
this.isAuthenticated = this.app.get('accessToken') !== null;
}
}
connect() {
this.isConnecting = true;
this.app.io.on('connect', () => {
this.isConnecting = false;
this.authenticate().then(() => {
console.log('authenticated after reconnection');
}).catch(error => {
console.log('error authenticating after reconnection', error);
});
});
this.app.io.on('disconnect', () => {
console.log('disconnected');
this.isConnecting = true;
});
}
createAccount(email, password) {
const userData = {email, password};
return this.app.service('users').create(userData).then((result) => {
return this.authenticate(Object.assign(userData, {strategy: 'local'}))
});
}
login(email, password) {
const payload = {
strategy: 'local',
email,
password
};
return this.authenticate(payload);
}
authenticate(options) {
options = options ? options : undefined;
return this._authenticate(options).then(user => {
console.log('authenticated successfully', user._id, user.email);
this.user = user;
this.isAuthenticated = true;
return Promise.resolve(user);
}).catch(error => {
console.log('authenticated failed', error.message);
console.log(error);
return Promise.reject(error);
});
}
_authenticate(payload) {
return this.app.authenticate(payload)
.then(response => {
return this.app.passport.verifyJWT(response.accessToken);
})
.then(payload => {
return this.app.service('users').get(payload.userId);
}).catch(e => Promise.reject(e));
}
promptForLogout() {
Alert.alert('Sign Out', 'Are you sure you want to sign out?',
[
{
text: 'Cancel', onPress: () => {
}, style: 'cancel'
},
{text: 'Yes', onPress: this.logout, style: 'destructive'},
]
);
}
logout() {
this.app.logout();
this.skip = 0;
this.messages = [];
this.user = null;
this.isAuthenticated = false;
}
loadMessages(loadNextPage) {
let $skip = this.skip;
const query = {query: {$sort: {createdAt: -1}, $skip}};
return this.app.service('messages').find(query).then(response => {
const messages = [];
const skip = response.skip + response.limit;
for (let message of response.data) {
messages.push(this.formatMessage(message));
}
console.log('loaded messages from server', JSON.stringify(messages, null, 2));
if (!loadNextPage) {
this.messages = messages;
} else {
this.messages = this.messages.concat(messages);
}
this.skip = skip;
this.hasMoreMessages = response.skip + response.limit < response.total;
}).catch(error => {
console.log(error);
});
}
formatMessage(message) {
return {
_id: message._id,
text: message.text,
position: message.user._id.toString() === this.user._id.toString() ? 'left' : 'right',
createdAt: new Date(message.createdAt),
user: {
_id: message.user._id ? message.user._id : '',
name: message.user.email ? message.user.email : message.name,
avatar: message.user.avatar ? message.user.avatar : PLACEHOLDER,
}
};
}
deleteMessage(messageToRemove) {
let messages = this.messages;
let idToRemove = messageToRemove.id ? messageToRemove.id : messageToRemove._id;
messages = messages.filter(function (message) {
return message.id !== idToRemove;
});
this.messages = messages;
}
sendMessage(messages = {}, rowID = null) {
this.app.service('messages').create({text: messages[0].text}).then(result => {
console.log('message created!');
}).catch((error) => {
console.log('ERROR creating message');
console.log(error);
});
}
}