src/shared/components/community/communities.tsx

   1 import { Component, linkEvent } from "inferno";
   2 import {
   3   CommunityResponse,
   4   CommunityView,
   5   FollowCommunity,
   6   ListCommunities,
   7   ListCommunitiesResponse,
   8   ListingType,
   9   SiteView,
  10   SortType,
  11   UserOperation,
  12 } from "lemmy-js-client";
  13 import { Subscription } from "rxjs";
  14 import { InitialFetchRequest } from "shared/interfaces";
  15 import { i18n } from "../../i18next";
  16 import { WebSocketService } from "../../services";
  17 import {
  18   authField,
  19   getPageFromProps,
  20   isBrowser,
  21   setIsoData,
  22   setOptionalAuth,
  23   toast,
  24   wsClient,
  25   wsJsonToRes,
  26   wsSubscribe,
  27   wsUserOp,
  28 } from "../../utils";
  29 import { HtmlTags } from "../common/html-tags";
  30 import { Spinner } from "../common/icon";
  31 import { Paginator } from "../common/paginator";
  32 import { CommunityLink } from "./community-link";
  33
  34 const communityLimit = 100;
  35
  36 interface CommunitiesState {
  37   communities: CommunityView[];
  38   page: number;
  39   loading: boolean;
  40   site_view: SiteView;
  41   searchText: string;
  42 }
  43
  44 interface CommunitiesProps {
  45   page: number;
  46 }
  47
  48 export class Communities extends Component<any, CommunitiesState> {
  49   private subscription: Subscription;
  50   private isoData = setIsoData(this.context);
  51   private emptyState: CommunitiesState = {
  52     communities: [],
  53     loading: true,
  54     page: getPageFromProps(this.props),
  55     site_view: this.isoData.site_res.site_view,
  56     searchText: "",
  57   };
  58
  59   constructor(props: any, context: any) {
  60     super(props, context);
  61     this.state = this.emptyState;
  62     this.handlePageChange = this.handlePageChange.bind(this);
  63
  64     this.parseMessage = this.parseMessage.bind(this);
  65     this.subscription = wsSubscribe(this.parseMessage);
  66
  67     // Only fetch the data if coming from another route
  68     if (this.isoData.path == this.context.router.route.match.url) {
  69       this.state.communities = this.isoData.routeData[0].communities;
  70       this.state.loading = false;
  71     } else {
  72       this.refetch();
  73     }
  74   }
  75
  76   componentWillUnmount() {
  77     if (isBrowser()) {
  78       this.subscription.unsubscribe();
  79     }
  80   }
  81
  82   static getDerivedStateFromProps(props: any): CommunitiesProps {
  83     return {
  84       page: getPageFromProps(props),
  85     };
  86   }
  87
  88   componentDidUpdate(_: any, lastState: CommunitiesState) {
  89     if (lastState.page !== this.state.page) {
  90       this.setState({ loading: true });
  91       this.refetch();
  92     }
  93   }
  94
  95   get documentTitle(): string {
  96     return `${i18n.t("communities")} - ${this.state.site_view.site.name}`;
  97   }
  98
  99   render() {
 100     return (
 101       <div class="container">
 102         <HtmlTags
 103           title={this.documentTitle}
 104           path={this.context.router.route.match.url}
 105         />
 106         {this.state.loading ? (
 107           <h5>
 108             <Spinner large />
 109           </h5>
 110         ) : (
 111           <div>
 112             <div class="row">
 113               <div class="col-md-6">
 114                 <h4>{i18n.t("list_of_communities")}</h4>
 115               </div>
 116               <div class="col-md-6">
 117                 <div class="float-md-right">{this.searchForm()}</div>
 118               </div>
 119             </div>
 120
 121             <div class="table-responsive">
 122               <table id="community_table" class="table table-sm table-hover">
 123                 <thead class="pointer">
 124                   <tr>
 125                     <th>{i18n.t("name")}</th>
 126                     <th class="text-right">{i18n.t("subscribers")}</th>
 127                     <th class="text-right">
 128                       {i18n.t("users")} / {i18n.t("month")}
 129                     </th>
 130                     <th class="text-right d-none d-lg-table-cell">
 131                       {i18n.t("posts")}
 132                     </th>
 133                     <th class="text-right d-none d-lg-table-cell">
 134                       {i18n.t("comments")}
 135                     </th>
 136                     <th></th>
 137                   </tr>
 138                 </thead>
 139                 <tbody>
 140                   {this.state.communities.map(cv => (
 141                     <tr>
 142                       <td>
 143                         <CommunityLink community={cv.community} />
 144                       </td>
 145                       <td class="text-right">{cv.counts.subscribers}</td>
 146                       <td class="text-right">{cv.counts.users_active_month}</td>
 147                       <td class="text-right d-none d-lg-table-cell">
 148                         {cv.counts.posts}
 149                       </td>
 150                       <td class="text-right d-none d-lg-table-cell">
 151                         {cv.counts.comments}
 152                       </td>
 153                       <td class="text-right">
 154                         {cv.subscribed ? (
 155                           <button
 156                             class="btn btn-link d-inline-block"
 157                             onClick={linkEvent(
 158                               cv.community.id,
 159                               this.handleUnsubscribe
 160                             )}
 161                           >
 162                             {i18n.t("unsubscribe")}
 163                           </button>
 164                         ) : (
 165                           <button
 166                             class="btn btn-link d-inline-block"
 167                             onClick={linkEvent(
 168                               cv.community.id,
 169                               this.handleSubscribe
 170                             )}
 171                           >
 172                             {i18n.t("subscribe")}
 173                           </button>
 174                         )}
 175                       </td>
 176                     </tr>
 177                   ))}
 178                 </tbody>
 179               </table>
 180             </div>
 181             <Paginator
 182               page={this.state.page}
 183               onChange={this.handlePageChange}
 184             />
 185           </div>
 186         )}
 187       </div>
 188     );
 189   }
 190
 191   searchForm() {
 192     return (
 193       <form
 194         class="form-inline"
 195         onSubmit={linkEvent(this, this.handleSearchSubmit)}
 196       >
 197         <input
 198           type="text"
 199           id="communities-search"
 200           class="form-control mr-2 mb-2"
 201           value={this.state.searchText}
 202           placeholder={`${i18n.t("search")}...`}
 203           onInput={linkEvent(this, this.handleSearchChange)}
 204           required
 205           minLength={3}
 206         />
 207         <label class="sr-only" htmlFor="communities-search">
 208           {i18n.t("search")}
 209         </label>
 210         <button type="submit" class="btn btn-secondary mr-2 mb-2">
 211           <span>{i18n.t("search")}</span>
 212         </button>
 213       </form>
 214     );
 215   }
 216
 217   updateUrl(paramUpdates: CommunitiesProps) {
 218     const page = paramUpdates.page || this.state.page;
 219     this.props.history.push(`/communities/page/${page}`);
 220   }
 221
 222   handlePageChange(page: number) {
 223     this.updateUrl({ page });
 224   }
 225
 226   handleUnsubscribe(communityId: number) {
 227     let form: FollowCommunity = {
 228       community_id: communityId,
 229       follow: false,
 230       auth: authField(),
 231     };
 232     WebSocketService.Instance.send(wsClient.followCommunity(form));
 233   }
 234
 235   handleSubscribe(communityId: number) {
 236     let form: FollowCommunity = {
 237       community_id: communityId,
 238       follow: true,
 239       auth: authField(),
 240     };
 241     WebSocketService.Instance.send(wsClient.followCommunity(form));
 242   }
 243
 244   handleSearchChange(i: Communities, event: any) {
 245     i.setState({ searchText: event.target.value });
 246   }
 247
 248   handleSearchSubmit(i: Communities) {
 249     const searchParamEncoded = encodeURIComponent(i.state.searchText);
 250     i.context.router.history.push(
 251       `/search/q/${searchParamEncoded}/type/Communities/sort/TopAll/listing_type/All/community_id/0/creator_id/0/page/1`
 252     );
 253   }
 254
 255   refetch() {
 256     let listCommunitiesForm: ListCommunities = {
 257       type_: ListingType.All,
 258       sort: SortType.TopMonth,
 259       limit: communityLimit,
 260       page: this.state.page,
 261       auth: authField(false),
 262     };
 263
 264     WebSocketService.Instance.send(
 265       wsClient.listCommunities(listCommunitiesForm)
 266     );
 267   }
 268
 269   static fetchInitialData(req: InitialFetchRequest): Promise<any>[] {
 270     let pathSplit = req.path.split("/");
 271     let page = pathSplit[3] ? Number(pathSplit[3]) : 1;
 272     let listCommunitiesForm: ListCommunities = {
 273       type_: ListingType.All,
 274       sort: SortType.TopMonth,
 275       limit: communityLimit,
 276       page,
 277     };
 278     setOptionalAuth(listCommunitiesForm, req.auth);
 279
 280     return [req.client.listCommunities(listCommunitiesForm)];
 281   }
 282
 283   parseMessage(msg: any) {
 284     let op = wsUserOp(msg);
 285     console.log(msg);
 286     if (msg.error) {
 287       toast(i18n.t(msg.error), "danger");
 288       return;
 289     } else if (op == UserOperation.ListCommunities) {
 290       let data = wsJsonToRes<ListCommunitiesResponse>(msg).data;
 291       this.state.communities = data.communities;
 292       this.state.loading = false;
 293       window.scrollTo(0, 0);
 294       this.setState(this.state);
 295     } else if (op == UserOperation.FollowCommunity) {
 296       let data = wsJsonToRes<CommunityResponse>(msg).data;
 297       let found = this.state.communities.find(
 298         c => c.community.id == data.community_view.community.id
 299       );
 300       found.subscribed = data.community_view.subscribed;
 301       found.counts.subscribers = data.community_view.counts.subscribers;
 302       this.setState(this.state);
 303     }
 304   }
 305 }