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   getListingTypeFromPropsNoDefault,
  20   getPageFromProps,
  21   isBrowser,
  22   numToSI,
  23   setIsoData,
  24   setOptionalAuth,
  25   showLocal,
  26   toast,
  27   wsClient,
  28   wsJsonToRes,
  29   wsSubscribe,
  30   wsUserOp,
  31 } from "../../utils";
  32 import { HtmlTags } from "../common/html-tags";
  33 import { Spinner } from "../common/icon";
  34 import { ListingTypeSelect } from "../common/listing-type-select";
  35 import { Paginator } from "../common/paginator";
  36 import { CommunityLink } from "./community-link";
  37
  38 const communityLimit = 100;
  39
  40 interface CommunitiesState {
  41   communities: CommunityView[];
  42   page: number;
  43   loading: boolean;
  44   site_view: SiteView;
  45   searchText: string;
  46   listingType: ListingType;
  47 }
  48
  49 interface CommunitiesProps {
  50   listingType?: ListingType;
  51   page?: number;
  52 }
  53
  54 export class Communities extends Component<any, CommunitiesState> {
  55   private subscription: Subscription;
  56   private isoData = setIsoData(this.context);
  57   private emptyState: CommunitiesState = {
  58     communities: [],
  59     loading: true,
  60     page: getPageFromProps(this.props),
  61     listingType: getListingTypeFromPropsNoDefault(this.props),
  62     site_view: this.isoData.site_res.site_view,
  63     searchText: "",
  64   };
  65
  66   constructor(props: any, context: any) {
  67     super(props, context);
  68     this.state = this.emptyState;
  69     this.handlePageChange = this.handlePageChange.bind(this);
  70     this.handleListingTypeChange = this.handleListingTypeChange.bind(this);
  71
  72     this.parseMessage = this.parseMessage.bind(this);
  73     this.subscription = wsSubscribe(this.parseMessage);
  74
  75     // Only fetch the data if coming from another route
  76     if (this.isoData.path == this.context.router.route.match.url) {
  77       this.state.communities = this.isoData.routeData[0].communities;
  78       this.state.loading = false;
  79     } else {
  80       this.refetch();
  81     }
  82   }
  83
  84   componentWillUnmount() {
  85     if (isBrowser()) {
  86       this.subscription.unsubscribe();
  87     }
  88   }
  89
  90   static getDerivedStateFromProps(props: any): CommunitiesProps {
  91     return {
  92       listingType: getListingTypeFromPropsNoDefault(props),
  93       page: getPageFromProps(props),
  94     };
  95   }
  96
  97   componentDidUpdate(_: any, lastState: CommunitiesState) {
  98     if (
  99       lastState.page !== this.state.page ||
 100       lastState.listingType !== this.state.listingType
 101     ) {
 102       this.setState({ loading: true });
 103       this.refetch();
 104     }
 105   }
 106
 107   get documentTitle(): string {
 108     return `${i18n.t("communities")} - ${this.state.site_view.site.name}`;
 109   }
 110
 111   render() {
 112     return (
 113       <div class="container">
 114         <HtmlTags
 115           title={this.documentTitle}
 116           path={this.context.router.route.match.url}
 117         />
 118         {this.state.loading ? (
 119           <h5>
 120             <Spinner large />
 121           </h5>
 122         ) : (
 123           <div>
 124             <div class="row">
 125               <div class="col-md-6">
 126                 <h4>{i18n.t("list_of_communities")}</h4>
 127                 <span class="mb-2">
 128                   <ListingTypeSelect
 129                     type_={this.state.listingType}
 130                     showLocal={showLocal(this.isoData)}
 131                     showSubscribed
 132                     onChange={this.handleListingTypeChange}
 133                   />
 134                 </span>
 135               </div>
 136               <div class="col-md-6">
 137                 <div class="float-md-right">{this.searchForm()}</div>
 138               </div>
 139             </div>
 140
 141             <div class="table-responsive">
 142               <table id="community_table" class="table table-sm table-hover">
 143                 <thead class="pointer">
 144                   <tr>
 145                     <th>{i18n.t("name")}</th>
 146                     <th class="text-right">{i18n.t("subscribers")}</th>
 147                     <th class="text-right">
 148                       {i18n.t("users")} / {i18n.t("month")}
 149                     </th>
 150                     <th class="text-right d-none d-lg-table-cell">
 151                       {i18n.t("posts")}
 152                     </th>
 153                     <th class="text-right d-none d-lg-table-cell">
 154                       {i18n.t("comments")}
 155                     </th>
 156                     <th></th>
 157                   </tr>
 158                 </thead>
 159                 <tbody>
 160                   {this.state.communities.map(cv => (
 161                     <tr>
 162                       <td>
 163                         <CommunityLink community={cv.community} />
 164                       </td>
 165                       <td class="text-right">
 166                         {numToSI(cv.counts.subscribers)}
 167                       </td>
 168                       <td class="text-right">
 169                         {numToSI(cv.counts.users_active_month)}
 170                       </td>
 171                       <td class="text-right d-none d-lg-table-cell">
 172                         {numToSI(cv.counts.posts)}
 173                       </td>
 174                       <td class="text-right d-none d-lg-table-cell">
 175                         {numToSI(cv.counts.comments)}
 176                       </td>
 177                       <td class="text-right">
 178                         {cv.subscribed ? (
 179                           <button
 180                             class="btn btn-link d-inline-block"
 181                             onClick={linkEvent(
 182                               cv.community.id,
 183                               this.handleUnsubscribe
 184                             )}
 185                           >
 186                             {i18n.t("unsubscribe")}
 187                           </button>
 188                         ) : (
 189                           <button
 190                             class="btn btn-link d-inline-block"
 191                             onClick={linkEvent(
 192                               cv.community.id,
 193                               this.handleSubscribe
 194                             )}
 195                           >
 196                             {i18n.t("subscribe")}
 197                           </button>
 198                         )}
 199                       </td>
 200                     </tr>
 201                   ))}
 202                 </tbody>
 203               </table>
 204             </div>
 205             <Paginator
 206               page={this.state.page}
 207               onChange={this.handlePageChange}
 208             />
 209           </div>
 210         )}
 211       </div>
 212     );
 213   }
 214
 215   searchForm() {
 216     return (
 217       <form
 218         class="form-inline"
 219         onSubmit={linkEvent(this, this.handleSearchSubmit)}
 220       >
 221         <input
 222           type="text"
 223           id="communities-search"
 224           class="form-control mr-2 mb-2"
 225           value={this.state.searchText}
 226           placeholder={`${i18n.t("search")}...`}
 227           onInput={linkEvent(this, this.handleSearchChange)}
 228           required
 229           minLength={3}
 230         />
 231         <label class="sr-only" htmlFor="communities-search">
 232           {i18n.t("search")}
 233         </label>
 234         <button type="submit" class="btn btn-secondary mr-2 mb-2">
 235           <span>{i18n.t("search")}</span>
 236         </button>
 237       </form>
 238     );
 239   }
 240
 241   updateUrl(paramUpdates: CommunitiesProps) {
 242     const page = paramUpdates.page || this.state.page;
 243     const listingTypeStr = paramUpdates.listingType || this.state.listingType;
 244     this.props.history.push(
 245       `/communities/listing_type/${listingTypeStr}/page/${page}`
 246     );
 247   }
 248
 249   handlePageChange(page: number) {
 250     this.updateUrl({ page });
 251   }
 252
 253   handleListingTypeChange(val: ListingType) {
 254     this.updateUrl({
 255       listingType: val,
 256       page: 1,
 257     });
 258   }
 259
 260   handleUnsubscribe(communityId: number) {
 261     let form: FollowCommunity = {
 262       community_id: communityId,
 263       follow: false,
 264       auth: authField(),
 265     };
 266     WebSocketService.Instance.send(wsClient.followCommunity(form));
 267   }
 268
 269   handleSubscribe(communityId: number) {
 270     let form: FollowCommunity = {
 271       community_id: communityId,
 272       follow: true,
 273       auth: authField(),
 274     };
 275     WebSocketService.Instance.send(wsClient.followCommunity(form));
 276   }
 277
 278   handleSearchChange(i: Communities, event: any) {
 279     i.setState({ searchText: event.target.value });
 280   }
 281
 282   handleSearchSubmit(i: Communities) {
 283     const searchParamEncoded = encodeURIComponent(i.state.searchText);
 284     i.context.router.history.push(
 285       `/search/q/${searchParamEncoded}/type/Communities/sort/TopAll/listing_type/All/community_id/0/creator_id/0/page/1`
 286     );
 287   }
 288
 289   refetch() {
 290     let listCommunitiesForm: ListCommunities = {
 291       type_: this.state.listingType,
 292       sort: SortType.TopMonth,
 293       limit: communityLimit,
 294       page: this.state.page,
 295       auth: authField(false),
 296     };
 297
 298     WebSocketService.Instance.send(
 299       wsClient.listCommunities(listCommunitiesForm)
 300     );
 301   }
 302
 303   static fetchInitialData(req: InitialFetchRequest): Promise<any>[] {
 304     let pathSplit = req.path.split("/");
 305     let type_: ListingType = pathSplit[3]
 306       ? ListingType[pathSplit[3]]
 307       : ListingType.Local;
 308     let page = pathSplit[5] ? Number(pathSplit[5]) : 1;
 309     let listCommunitiesForm: ListCommunities = {
 310       type_,
 311       sort: SortType.TopMonth,
 312       limit: communityLimit,
 313       page,
 314     };
 315     setOptionalAuth(listCommunitiesForm, req.auth);
 316
 317     return [req.client.listCommunities(listCommunitiesForm)];
 318   }
 319
 320   parseMessage(msg: any) {
 321     let op = wsUserOp(msg);
 322     console.log(msg);
 323     if (msg.error) {
 324       toast(i18n.t(msg.error), "danger");
 325       return;
 326     } else if (op == UserOperation.ListCommunities) {
 327       let data = wsJsonToRes<ListCommunitiesResponse>(msg).data;
 328       this.state.communities = data.communities;
 329       this.state.loading = false;
 330       window.scrollTo(0, 0);
 331       this.setState(this.state);
 332     } else if (op == UserOperation.FollowCommunity) {
 333       let data = wsJsonToRes<CommunityResponse>(msg).data;
 334       let found = this.state.communities.find(
 335         c => c.community.id == data.community_view.community.id
 336       );
 337       found.subscribed = data.community_view.subscribed;
 338       found.counts.subscribers = data.community_view.counts.subscribers;
 339       this.setState(this.state);
 340     }
 341   }
 342 }