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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 { UserOperation, CommunityUser, GetFollowedCommunitiesResponse, ListCommunitiesForm, ListCommunitiesResponse, Community, SortType, GetSiteResponse, ListingType, SiteResponse, GetPostsResponse, CreatePostLikeResponse, Post, GetPostsForm } from '../interfaces';
import { WebSocketService, UserService } from '../services';
import { PostListings } from './post-listings';
import { SiteForm } from './site-form';
import { msgOp, repoUrl, mdToHtml, fetchLimit, routeSortTypeToEnum, routeListingTypeToEnum, postRefetchSeconds } from '../utils';
import { i18n } from '../i18next';
import { T } from 'inferno-i18next';
interface MainState {
subscribedCommunities: Array<CommunityUser>;
trendingCommunities: Array<Community>;
site: GetSiteResponse;
showEditSite: boolean;
loading: boolean;
posts: Array<Post>;
type_: ListingType;
sort: SortType;
page: number;
}
export class Main extends Component<any, MainState> {
private subscription: Subscription;
private postFetcher: any;
private emptyState: MainState = {
subscribedCommunities: [],
trendingCommunities: [],
site: {
op: null,
site: {
id: null,
name: null,
creator_id: null,
creator_name: null,
published: null,
number_of_users: null,
number_of_posts: null,
number_of_comments: null,
number_of_communities: null,
},
admins: [],
banned: [],
online: null,
},
showEditSite: false,
loading: true,
posts: [],
type_: this.getListingTypeFromProps(this.props),
sort: this.getSortTypeFromProps(this.props),
page: this.getPageFromProps(this.props),
}
getListingTypeFromProps(props: any): ListingType {
return (props.match.params.type) ?
routeListingTypeToEnum(props.match.params.type) :
UserService.Instance.user ?
ListingType.Subscribed :
ListingType.All;
}
getSortTypeFromProps(props: any): SortType {
return (props.match.params.sort) ?
routeSortTypeToEnum(props.match.params.sort) :
SortType.Hot;
}
getPageFromProps(props: any): number {
return (props.match.params.page) ? Number(props.match.params.page) : 1;
}
constructor(props: any, context: any) {
super(props, context);
this.state = this.emptyState;
this.handleEditCancel = this.handleEditCancel.bind(this);
this.subscription = WebSocketService.Instance.subject
.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
.subscribe(
(msg) => this.parseMessage(msg),
(err) => console.error(err),
() => console.log('complete')
);
WebSocketService.Instance.getSite();
if (UserService.Instance.user) {
WebSocketService.Instance.getFollowedCommunities();
}
let listCommunitiesForm: ListCommunitiesForm = {
sort: SortType[SortType.Hot],
limit: 6
}
WebSocketService.Instance.listCommunities(listCommunitiesForm);
this.keepFetchingPosts();
}
componentWillUnmount() {
this.subscription.unsubscribe();
clearInterval(this.postFetcher);
}
// Necessary for back button for some reason
componentWillReceiveProps(nextProps: any) {
if (nextProps.history.action == 'POP' || nextProps.history.action == 'PUSH') {
this.state.type_ = this.getListingTypeFromProps(nextProps);
this.state.sort = this.getSortTypeFromProps(nextProps);
this.state.page = this.getPageFromProps(nextProps);
this.setState(this.state);
this.fetchPosts();
}
}
render() {
return (
<div class="container">
<div class="row">
<div class="col-12 col-md-8">
{this.posts()}
</div>
<div class="col-12 col-md-4">
{this.my_sidebar()}
</div>
</div>
</div>
)
}
my_sidebar() {
return(
<div>
{!this.state.loading &&
<div>
<div class="card border-secondary mb-3">
<div class="card-body">
{this.trendingCommunities()}
{UserService.Instance.user && this.state.subscribedCommunities.length > 0 &&
<div>
<h5>
<T i18nKey="subscribed_to_communities">#<Link class="text-white" to="/communities">#</Link></T>
</h5>
<ul class="list-inline">
{this.state.subscribedCommunities.map(community =>
<li class="list-inline-item"><Link to={`/c/${community.community_name}`}>{community.community_name}</Link></li>
)}
</ul>
</div>
}
<Link class="btn btn-sm btn-secondary btn-block"
to="/create_community">
<T i18nKey="create_a_community">#</T>
</Link>
</div>
</div>
{this.sidebar()}
{this.landing()}
</div>
}
</div>
)
}
trendingCommunities() {
return (
<div>
<h5>
<T i18nKey="trending_communities">#<Link class="text-white" to="/communities">#</Link></T>
</h5>
<ul class="list-inline">
{this.state.trendingCommunities.map(community =>
<li class="list-inline-item"><Link to={`/c/${community.name}`}>{community.name}</Link></li>
)}
</ul>
</div>
)
}
sidebar() {
return (
<div>
{!this.state.showEditSite ?
this.siteInfo() :
<SiteForm
site={this.state.site.site}
onCancel={this.handleEditCancel}
/>
}
</div>
)
}
updateUrl() {
let typeStr = ListingType[this.state.type_].toLowerCase();
let sortStr = SortType[this.state.sort].toLowerCase();
this.props.history.push(`/home/type/${typeStr}/sort/${sortStr}/page/${this.state.page}`);
}
siteInfo() {
return (
<div>
<div class="card border-secondary mb-3">
<div class="card-body">
<h5 class="mb-0">{`${this.state.site.site.name}`}</h5>
{this.canAdmin &&
<ul class="list-inline mb-1 text-muted small font-weight-bold">
<li className="list-inline-item">
<span class="pointer" onClick={linkEvent(this, this.handleEditClick)}>
<T i18nKey="edit">#</T>
</span>
</li>
</ul>
}
<ul class="my-2 list-inline">
<li className="list-inline-item badge badge-secondary">
<T i18nKey="number_online" interpolation={{count: this.state.site.online}}>#</T>
</li>
<li className="list-inline-item badge badge-secondary">
<T i18nKey="number_of_users" interpolation={{count: this.state.site.site.number_of_users}}>#</T>
</li>
<li className="list-inline-item badge badge-secondary">
<T i18nKey="number_of_communities" interpolation={{count: this.state.site.site.number_of_communities}}>#</T>
</li>
<li className="list-inline-item badge badge-secondary">
<T i18nKey="number_of_posts" interpolation={{count: this.state.site.site.number_of_posts}}>#</T>
</li>
<li className="list-inline-item badge badge-secondary">
<T i18nKey="number_of_comments" interpolation={{count: this.state.site.site.number_of_comments}}>#</T>
</li>
<li className="list-inline-item">
<Link className="badge badge-secondary" to="/modlog">
<T i18nKey="modlog">#</T>
</Link>
</li>
</ul>
<ul class="mt-1 list-inline small mb-0">
<li class="list-inline-item">
<T i18nKey="admins" class="d-inline">#</T>:
</li>
{this.state.site.admins.map(admin =>
<li class="list-inline-item"><Link class="text-info" to={`/u/${admin.name}`}>{admin.name}</Link></li>
)}
</ul>
</div>
</div>
{this.state.site.site.description &&
<div class="card border-secondary mb-3">
<div class="card-body">
<div className="md-div" dangerouslySetInnerHTML={mdToHtml(this.state.site.site.description)} />
</div>
</div>
}
</div>
)
}
landing() {
return (
<div class="card border-secondary">
<div class="card-body">
<h5>
<T i18nKey="powered_by" class="d-inline">#</T>
<svg class="icon mx-2"><use xlinkHref="#icon-mouse">#</use></svg>
<a href={repoUrl}>Lemmy<sup>beta</sup></a>
</h5>
<p class="mb-0">
<T i18nKey="landing_0">#<a href="https://en.wikipedia.org/wiki/Social_network_aggregation">#</a><a href="https://en.wikipedia.org/wiki/Fediverse">#</a><br></br><code>#</code><br></br><b>#</b><br></br><a href={repoUrl}>#</a><br></br><a href="https://www.rust-lang.org">#</a><a href="https://actix.rs/">#</a><a href="https://infernojs.org">#</a><a href="https://www.typescriptlang.org/">#</a>
</T>
</p>
</div>
</div>
)
}
posts() {
return (
<div>
{this.state.loading ?
<h5><svg class="icon icon-spinner spin"><use xlinkHref="#icon-spinner"></use></svg></h5> :
<div>
{this.selects()}
<PostListings posts={this.state.posts} showCommunity />
{this.paginator()}
</div>
}
</div>
)
}
selects() {
return (
<div className="mb-3">
<div class="btn-group btn-group-toggle">
<label className={`btn btn-sm btn-secondary
${this.state.type_ == ListingType.Subscribed && 'active'}
${UserService.Instance.user == undefined ? 'disabled' : 'pointer'}
`}>
<input type="radio"
value={ListingType.Subscribed}
checked={this.state.type_ == ListingType.Subscribed}
onChange={linkEvent(this, this.handleTypeChange)}
disabled={UserService.Instance.user == undefined}
/>
{i18n.t('subscribed')}
</label>
<label className={`pointer btn btn-sm btn-secondary ${this.state.type_ == ListingType.All && 'active'}`}>
<input type="radio"
value={ListingType.All}
checked={this.state.type_ == ListingType.All}
onChange={linkEvent(this, this.handleTypeChange)}
/>
{i18n.t('all')}
</label>
</div>
<select value={this.state.sort} onChange={linkEvent(this, this.handleSortChange)} class="ml-2 custom-select custom-select-sm w-auto">
<option disabled><T i18nKey="sort_type">#</T></option>
<option value={SortType.Hot}><T i18nKey="hot">#</T></option>
<option value={SortType.New}><T i18nKey="new">#</T></option>
<option disabled></option>
<option value={SortType.TopDay}><T i18nKey="top_day">#</T></option>
<option value={SortType.TopWeek}><T i18nKey="week">#</T></option>
<option value={SortType.TopMonth}><T i18nKey="month">#</T></option>
<option value={SortType.TopYear}><T i18nKey="year">#</T></option>
<option value={SortType.TopAll}><T i18nKey="all">#</T></option>
</select>
</div>
)
}
paginator() {
return (
<div class="my-2">
{this.state.page > 1 &&
<button class="btn btn-sm btn-secondary mr-1" onClick={linkEvent(this, this.prevPage)}><T i18nKey="prev">#</T></button>
}
<button class="btn btn-sm btn-secondary" onClick={linkEvent(this, this.nextPage)}><T i18nKey="next">#</T></button>
</div>
);
}
get canAdmin(): boolean {
return UserService.Instance.user && this.state.site.admins.map(a => a.id).includes(UserService.Instance.user.id);
}
handleEditClick(i: Main) {
i.state.showEditSite = true;
i.setState(i.state);
}
handleEditCancel() {
this.state.showEditSite = false;
this.setState(this.state);
}
nextPage(i: Main) {
i.state.page++;
i.state.loading = true;
i.setState(i.state);
i.updateUrl();
i.fetchPosts();
window.scrollTo(0,0);
}
prevPage(i: Main) {
i.state.page--;
i.state.loading = true;
i.setState(i.state);
i.updateUrl();
i.fetchPosts();
window.scrollTo(0,0);
}
handleSortChange(i: Main, event: any) {
i.state.sort = Number(event.target.value);
i.state.page = 1;
i.state.loading = true;
i.setState(i.state);
i.updateUrl();
i.fetchPosts();
window.scrollTo(0,0);
}
handleTypeChange(i: Main, event: any) {
i.state.type_ = Number(event.target.value);
i.state.page = 1;
i.state.loading = true;
i.setState(i.state);
i.updateUrl();
i.fetchPosts();
window.scrollTo(0,0);
}
keepFetchingPosts() {
this.fetchPosts();
this.postFetcher = setInterval(() => this.fetchPosts(), postRefetchSeconds);
}
fetchPosts() {
let getPostsForm: GetPostsForm = {
page: this.state.page,
limit: fetchLimit,
sort: SortType[this.state.sort],
type_: ListingType[this.state.type_]
}
WebSocketService.Instance.getPosts(getPostsForm);
}
parseMessage(msg: any) {
console.log(msg);
let op: UserOperation = msgOp(msg);
if (msg.error) {
alert(i18n.t(msg.error));
return;
} else if (op == UserOperation.GetFollowedCommunities) {
let res: GetFollowedCommunitiesResponse = msg;
this.state.subscribedCommunities = res.communities;
this.setState(this.state);
} else if (op == UserOperation.ListCommunities) {
let res: ListCommunitiesResponse = msg;
this.state.trendingCommunities = res.communities;
this.setState(this.state);
} else if (op == UserOperation.GetSite) {
let res: GetSiteResponse = msg;
// This means it hasn't been set up yet
if (!res.site) {
this.context.router.history.push("/setup");
}
this.state.site.admins = res.admins;
this.state.site.site = res.site;
this.state.site.banned = res.banned;
this.state.site.online = res.online;
this.setState(this.state);
document.title = `${WebSocketService.Instance.site.name}`;
} else if (op == UserOperation.EditSite) {
let res: SiteResponse = msg;
this.state.site.site = res.site;
this.state.showEditSite = false;
this.setState(this.state);
} else if (op == UserOperation.GetPosts) {
let res: GetPostsResponse = msg;
this.state.posts = res.posts;
this.state.loading = false;
this.setState(this.state);
} else if (op == UserOperation.CreatePostLike) {
let res: CreatePostLikeResponse = msg;
let found = this.state.posts.find(c => c.id == res.post.id);
found.my_vote = res.post.my_vote;
found.score = res.post.score;
found.upvotes = res.post.upvotes;
found.downvotes = res.post.downvotes;
this.setState(this.state);
}
}
}