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import { Component, linkEvent } from 'inferno';
import { Link } from 'inferno-router';
import { Subscription } from "rxjs";
import { retryWhen, delay, take } from 'rxjs/operators';
import { WebSocketService, UserService } from '../services';
import { UserOperation, GetRepliesForm, GetRepliesResponse, SortType, GetSiteResponse, Comment} from '../interfaces';
import { msgOp } from '../utils';
import { version } from '../version';
import { i18n } from '../i18next';
import { T } from 'inferno-i18next';
interface NavbarState {
isLoggedIn: boolean;
expanded: boolean;
expandUserDropdown: boolean;
replies: Array<Comment>,
fetchCount: number,
unreadCount: number;
siteName: string;
}
export class Navbar extends Component<any, NavbarState> {
private wsSub: Subscription;
private userSub: Subscription;
emptyState: NavbarState = {
isLoggedIn: (UserService.Instance.user !== undefined),
unreadCount: 0,
fetchCount: 0,
replies: [],
expanded: false,
expandUserDropdown: false,
siteName: undefined
}
constructor(props: any, context: any) {
super(props, context);
this.state = this.emptyState;
this.handleOverviewClick = this.handleOverviewClick.bind(this);
this.keepFetchingReplies();
// Subscribe to user changes
this.userSub = UserService.Instance.sub.subscribe(user => {
this.state.isLoggedIn = user.user !== undefined;
this.state.unreadCount = user.unreadCount;
this.requestNotificationPermission();
this.setState(this.state);
});
this.wsSub = WebSocketService.Instance.subject
.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
.subscribe(
(msg) => this.parseMessage(msg),
(err) => console.error(err),
() => console.log('complete')
);
if (this.state.isLoggedIn) {
this.requestNotificationPermission();
}
WebSocketService.Instance.getSite();
}
render() {
return (
<div>{this.navbar()}</div>
)
}
componentWillUnmount() {
this.wsSub.unsubscribe();
this.userSub.unsubscribe();
}
// TODO class active corresponding to current page
navbar() {
return (
<nav class="container-fluid navbar navbar-expand-md navbar-light shadow p-0 px-3">
<Link title={version} class="navbar-brand" to="/">
{this.state.siteName}
</Link>
<button class="navbar-toggler" type="button" onClick={linkEvent(this, this.expandNavbar)}>
<span class="navbar-toggler-icon"></span>
</button>
<div className={`${!this.state.expanded && 'collapse'} navbar-collapse`}>
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<Link class="nav-link" to="/communities"><T i18nKey="communities">#</T></Link>
</li>
<li class="nav-item">
<Link class="nav-link" to="/search"><T i18nKey="search">#</T></Link>
</li>
<li class="nav-item">
<Link class="nav-link" to={{pathname: '/create_post', state: { prevPath: this.currentLocation }}}><T i18nKey="create_post">#</T></Link>
</li>
<li class="nav-item">
<Link class="nav-link" to="/create_community"><T i18nKey="create_community">#</T></Link>
</li>
</ul>
<ul class="navbar-nav ml-auto mr-2">
{this.state.isLoggedIn ?
<>
{
<li className="nav-item">
<Link class="nav-link" to="/inbox">
<svg class="icon"><use xlinkHref="#icon-mail"></use></svg>
{this.state.unreadCount> 0 && <span class="ml-1 badge badge-light">{this.state.unreadCount}</span>}
</Link>
</li>
}
<li className={`nav-item dropdown ${this.state.expandUserDropdown && 'show'}`}>
<a class="pointer nav-link dropdown-toggle" onClick={linkEvent(this, this.expandUserDropdown)} role="button">
{UserService.Instance.user.username}
</a>
<div className={`dropdown-menu dropdown-menu-right ${this.state.expandUserDropdown && 'show'}`}>
<a role="button" class="dropdown-item pointer" onClick={linkEvent(this, this.handleOverviewClick)}><T i18nKey="overview">#</T></a>
<a role="button" class="dropdown-item pointer" onClick={ linkEvent(this, this.handleLogoutClick) }><T i18nKey="logout">#</T></a>
</div>
</li>
</>
:
<Link class="nav-link" to="/login"><T i18nKey="login_sign_up">#</T></Link>
}
</ul>
</div>
</nav>
);
}
expandUserDropdown(i: Navbar) {
i.state.expandUserDropdown = !i.state.expandUserDropdown;
i.setState(i.state);
}
handleLogoutClick(i: Navbar) {
i.state.expandUserDropdown = false;
UserService.Instance.logout();
i.context.router.history.push('/');
}
handleOverviewClick(i: Navbar) {
i.state.expandUserDropdown = false;
i.setState(i.state);
let userPage = `/u/${UserService.Instance.user.username}`;
i.context.router.history.push(userPage);
}
expandNavbar(i: Navbar) {
i.state.expanded = !i.state.expanded;
i.setState(i.state);
}
parseMessage(msg: any) {
let op: UserOperation = msgOp(msg);
if (msg.error) {
if (msg.error == "not_logged_in") {
UserService.Instance.logout();
location.reload();
}
return;
} else if (op == UserOperation.GetReplies) {
let res: GetRepliesResponse = msg;
let unreadReplies = res.replies.filter(r => !r.read);
if (unreadReplies.length > 0 && this.state.fetchCount > 1 &&
(JSON.stringify(this.state.replies) !== JSON.stringify(unreadReplies))) {
this.notify(unreadReplies);
}
this.state.replies = unreadReplies;
this.sendRepliesCount(res);
} else if (op == UserOperation.GetSite) {
let res: GetSiteResponse = msg;
if (res.site) {
this.state.siteName = res.site.name;
WebSocketService.Instance.site = res.site;
this.setState(this.state);
}
}
}
keepFetchingReplies() {
this.fetchReplies();
setInterval(() => this.fetchReplies(), 15000);
}
fetchReplies() {
if (this.state.isLoggedIn) {
let repliesForm: GetRepliesForm = {
sort: SortType[SortType.New],
unread_only: true,
page: 1,
limit: 9999,
};
if (this.currentLocation !=='/inbox') {
WebSocketService.Instance.getReplies(repliesForm);
this.state.fetchCount++;
}
}
}
get currentLocation() {
return this.context.router.history.location.pathname;
}
sendRepliesCount(res: GetRepliesResponse) {
UserService.Instance.sub.next({user: UserService.Instance.user, unreadCount: res.replies.filter(r => !r.read).length});
}
requestNotificationPermission() {
if (UserService.Instance.user) {
document.addEventListener('DOMContentLoaded', function () {
if (!Notification) {
alert(i18n.t('notifications_error'));
return;
}
if (Notification.permission !== 'granted')
Notification.requestPermission();
});
}
}
notify(replies: Array<Comment>) {
let recentReply = replies[0];
if (Notification.permission !== 'granted')
Notification.requestPermission();
else {
var notification = new Notification(`${replies.length} ${i18n.t('unread_messages')}`, {
icon: `${window.location.protocol}//${window.location.host}/static/assets/apple-touch-icon.png`,
body: `${recentReply.creator_name}: ${recentReply.content}`
});
notification.onclick = () => {
this.context.router.history.push(`/post/${recentReply.post_id}/comment/${recentReply.id}`);
};
}
}
}