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                     onChange={this.handleListingTypeChange}
 132                   />
 133                 </span>
 134               </div>
 135               <div class="col-md-6">
 136                 <div class="float-md-right">{this.searchForm()}</div>
 137               </div>
 138             </div>
 139
 140             <div class="table-responsive">
 141               <table id="community_table" class="table table-sm table-hover">
 142                 <thead class="pointer">
 143                   <tr>
 144                     <th>{i18n.t("name")}</th>
 145                     <th class="text-right">{i18n.t("subscribers")}</th>
 146                     <th class="text-right">
 147                       {i18n.t("users")} / {i18n.t("month")}
 148                     </th>
 149                     <th class="text-right d-none d-lg-table-cell">
 150                       {i18n.t("posts")}
 151                     </th>
 152                     <th class="text-right d-none d-lg-table-cell">
 153                       {i18n.t("comments")}
 154                     </th>
 155                     <th></th>
 156                   </tr>
 157                 </thead>
 158                 <tbody>
 159                   {this.state.communities.map(cv => (
 160                     <tr>
 161                       <td>
 162                         <CommunityLink community={cv.community} />
 163                       </td>
 164                       <td class="text-right">
 165                         {numToSI(cv.counts.subscribers)}
 166                       </td>
 167                       <td class="text-right">
 168                         {numToSI(cv.counts.users_active_month)}
 169                       </td>
 170                       <td class="text-right d-none d-lg-table-cell">
 171                         {numToSI(cv.counts.posts)}
 172                       </td>
 173                       <td class="text-right d-none d-lg-table-cell">
 174                         {numToSI(cv.counts.comments)}
 175                       </td>
 176                       <td class="text-right">
 177                         {cv.subscribed ? (
 178                           <button
 179                             class="btn btn-link d-inline-block"
 180                             onClick={linkEvent(
 181                               cv.community.id,
 182                               this.handleUnsubscribe
 183                             )}
 184                           >
 185                             {i18n.t("unsubscribe")}
 186                           </button>
 187                         ) : (
 188                           <button
 189                             class="btn btn-link d-inline-block"
 190                             onClick={linkEvent(
 191                               cv.community.id,
 192                               this.handleSubscribe
 193                             )}
 194                           >
 195                             {i18n.t("subscribe")}
 196                           </button>
 197                         )}
 198                       </td>
 199                     </tr>
 200                   ))}
 201                 </tbody>
 202               </table>
 203             </div>
 204             <Paginator
 205               page={this.state.page}
 206               onChange={this.handlePageChange}
 207             />
 208           </div>
 209         )}
 210       </div>
 211     );
 212   }
 213
 214   searchForm() {
 215     return (
 216       <form
 217         class="form-inline"
 218         onSubmit={linkEvent(this, this.handleSearchSubmit)}
 219       >
 220         <input
 221           type="text"
 222           id="communities-search"
 223           class="form-control mr-2 mb-2"
 224           value={this.state.searchText}
 225           placeholder={`${i18n.t("search")}...`}
 226           onInput={linkEvent(this, this.handleSearchChange)}
 227           required
 228           minLength={3}
 229         />
 230         <label class="sr-only" htmlFor="communities-search">
 231           {i18n.t("search")}
 232         </label>
 233         <button type="submit" class="btn btn-secondary mr-2 mb-2">
 234           <span>{i18n.t("search")}</span>
 235         </button>
 236       </form>
 237     );
 238   }
 239
 240   updateUrl(paramUpdates: CommunitiesProps) {
 241     const page = paramUpdates.page || this.state.page;
 242     const listingTypeStr = paramUpdates.listingType || this.state.listingType;
 243     this.props.history.push(
 244       `/communities/listing_type/${listingTypeStr}/page/${page}`
 245     );
 246   }
 247
 248   handlePageChange(page: number) {
 249     this.updateUrl({ page });
 250   }
 251
 252   handleListingTypeChange(val: ListingType) {
 253     this.updateUrl({
 254       listingType: val,
 255       page: 1,
 256     });
 257   }
 258
 259   handleUnsubscribe(communityId: number) {
 260     let form: FollowCommunity = {
 261       community_id: communityId,
 262       follow: false,
 263       auth: authField(),
 264     };
 265     WebSocketService.Instance.send(wsClient.followCommunity(form));
 266   }
 267
 268   handleSubscribe(communityId: number) {
 269     let form: FollowCommunity = {
 270       community_id: communityId,
 271       follow: true,
 272       auth: authField(),
 273     };
 274     WebSocketService.Instance.send(wsClient.followCommunity(form));
 275   }
 276
 277   handleSearchChange(i: Communities, event: any) {
 278     i.setState({ searchText: event.target.value });
 279   }
 280
 281   handleSearchSubmit(i: Communities) {
 282     const searchParamEncoded = encodeURIComponent(i.state.searchText);
 283     i.context.router.history.push(
 284       `/search/q/${searchParamEncoded}/type/Communities/sort/TopAll/listing_type/All/community_id/0/creator_id/0/page/1`
 285     );
 286   }
 287
 288   refetch() {
 289     let listCommunitiesForm: ListCommunities = {
 290       type_: this.state.listingType,
 291       sort: SortType.TopMonth,
 292       limit: communityLimit,
 293       page: this.state.page,
 294       auth: authField(false),
 295     };
 296
 297     WebSocketService.Instance.send(
 298       wsClient.listCommunities(listCommunitiesForm)
 299     );
 300   }
 301
 302   static fetchInitialData(req: InitialFetchRequest): Promise<any>[] {
 303     let pathSplit = req.path.split("/");
 304     let type_: ListingType = pathSplit[3]
 305       ? ListingType[pathSplit[3]]
 306       : ListingType.Local;
 307     let page = pathSplit[5] ? Number(pathSplit[5]) : 1;
 308     let listCommunitiesForm: ListCommunities = {
 309       type_,
 310       sort: SortType.TopMonth,
 311       limit: communityLimit,
 312       page,
 313     };
 314     setOptionalAuth(listCommunitiesForm, req.auth);
 315
 316     return [req.client.listCommunities(listCommunitiesForm)];
 317   }
 318
 319   parseMessage(msg: any) {
 320     let op = wsUserOp(msg);
 321     console.log(msg);
 322     if (msg.error) {
 323       toast(i18n.t(msg.error), "danger");
 324       return;
 325     } else if (op == UserOperation.ListCommunities) {
 326       let data = wsJsonToRes<ListCommunitiesResponse>(msg).data;
 327       this.state.communities = data.communities;
 328       this.state.loading = false;
 329       window.scrollTo(0, 0);
 330       this.setState(this.state);
 331     } else if (op == UserOperation.FollowCommunity) {
 332       let data = wsJsonToRes<CommunityResponse>(msg).data;
 333       let found = this.state.communities.find(
 334         c => c.community.id == data.community_view.community.id
 335       );
 336       found.subscribed = data.community_view.subscribed;
 337       found.counts.subscribers = data.community_view.counts.subscribers;
 338       this.setState(this.state);
 339     }
 340   }
 341 }