src/shared/components/community/communities.tsx

   1 import { Component, linkEvent } from "inferno";
   2 import {
   3   CommunityResponse,
   4   FollowCommunity,
   5   GetSiteResponse,
   6   ListCommunities,
   7   ListCommunitiesResponse,
   8   ListingType,
   9   SortType,
  10   SubscribedType,
  11   UserOperation,
  12   wsJsonToRes,
  13   wsUserOp,
  14 } from "lemmy-js-client";
  15 import { Subscription } from "rxjs";
  16 import { InitialFetchRequest } from "shared/interfaces";
  17 import { i18n } from "../../i18next";
  18 import { WebSocketService } from "../../services";
  19 import {
  20   getListingTypeFromPropsNoDefault,
  21   getPageFromProps,
  22   isBrowser,
  23   myAuth,
  24   numToSI,
  25   setIsoData,
  26   showLocal,
  27   toast,
  28   wsClient,
  29   wsSubscribe,
  30 } from "../../utils";
  31 import { HtmlTags } from "../common/html-tags";
  32 import { Spinner } from "../common/icon";
  33 import { ListingTypeSelect } from "../common/listing-type-select";
  34 import { Paginator } from "../common/paginator";
  35 import { CommunityLink } from "./community-link";
  36
  37 const communityLimit = 50;
  38
  39 interface CommunitiesState {
  40   listCommunitiesResponse?: ListCommunitiesResponse;
  41   page: number;
  42   loading: boolean;
  43   siteRes: GetSiteResponse;
  44   searchText: string;
  45   listingType: ListingType;
  46 }
  47
  48 interface CommunitiesProps {
  49   listingType?: ListingType;
  50   page?: number;
  51 }
  52
  53 export class Communities extends Component<any, CommunitiesState> {
  54   private subscription?: Subscription;
  55   private isoData = setIsoData(this.context);
  56   state: CommunitiesState = {
  57     loading: true,
  58     page: getPageFromProps(this.props),
  59     listingType: getListingTypeFromPropsNoDefault(this.props),
  60     siteRes: this.isoData.site_res,
  61     searchText: "",
  62   };
  63
  64   constructor(props: any, context: any) {
  65     super(props, context);
  66     this.handlePageChange = this.handlePageChange.bind(this);
  67     this.handleListingTypeChange = this.handleListingTypeChange.bind(this);
  68
  69     this.parseMessage = this.parseMessage.bind(this);
  70     this.subscription = wsSubscribe(this.parseMessage);
  71
  72     // Only fetch the data if coming from another route
  73     if (this.isoData.path == this.context.router.route.match.url) {
  74       let listRes = this.isoData.routeData[0] as ListCommunitiesResponse;
  75       this.state = {
  76         ...this.state,
  77         listCommunitiesResponse: listRes,
  78         loading: false,
  79       };
  80     } else {
  81       this.refetch();
  82     }
  83   }
  84
  85   componentWillUnmount() {
  86     if (isBrowser()) {
  87       this.subscription?.unsubscribe();
  88     }
  89   }
  90
  91   static getDerivedStateFromProps(props: any): CommunitiesProps {
  92     return {
  93       listingType: getListingTypeFromPropsNoDefault(props),
  94       page: getPageFromProps(props),
  95     };
  96   }
  97
  98   componentDidUpdate(_: any, lastState: CommunitiesState) {
  99     if (
 100       lastState.page !== this.state.page ||
 101       lastState.listingType !== this.state.listingType
 102     ) {
 103       this.setState({ loading: true });
 104       this.refetch();
 105     }
 106   }
 107
 108   get documentTitle(): string {
 109     return `${i18n.t("communities")} - ${
 110       this.state.siteRes.site_view.site.name
 111     }`;
 112   }
 113
 114   render() {
 115     return (
 116       <div className="container-lg">
 117         <HtmlTags
 118           title={this.documentTitle}
 119           path={this.context.router.route.match.url}
 120         />
 121         {this.state.loading ? (
 122           <h5>
 123             <Spinner large />
 124           </h5>
 125         ) : (
 126           <div>
 127             <div className="row">
 128               <div className="col-md-6">
 129                 <h4>{i18n.t("list_of_communities")}</h4>
 130                 <span className="mb-2">
 131                   <ListingTypeSelect
 132                     type_={this.state.listingType}
 133                     showLocal={showLocal(this.isoData)}
 134                     showSubscribed
 135                     onChange={this.handleListingTypeChange}
 136                   />
 137                 </span>
 138               </div>
 139               <div className="col-md-6">
 140                 <div className="float-md-right">{this.searchForm()}</div>
 141               </div>
 142             </div>
 143
 144             <div className="table-responsive">
 145               <table
 146                 id="community_table"
 147                 className="table table-sm table-hover"
 148               >
 149                 <thead className="pointer">
 150                   <tr>
 151                     <th>{i18n.t("name")}</th>
 152                     <th className="text-right">{i18n.t("subscribers")}</th>
 153                     <th className="text-right">
 154                       {i18n.t("users")} / {i18n.t("month")}
 155                     </th>
 156                     <th className="text-right d-none d-lg-table-cell">
 157                       {i18n.t("posts")}
 158                     </th>
 159                     <th className="text-right d-none d-lg-table-cell">
 160                       {i18n.t("comments")}
 161                     </th>
 162                     <th></th>
 163                   </tr>
 164                 </thead>
 165                 <tbody>
 166                   {this.state.listCommunitiesResponse?.communities.map(cv => (
 167                     <tr key={cv.community.id}>
 168                       <td>
 169                         <CommunityLink community={cv.community} />
 170                       </td>
 171                       <td className="text-right">
 172                         {numToSI(cv.counts.subscribers)}
 173                       </td>
 174                       <td className="text-right">
 175                         {numToSI(cv.counts.users_active_month)}
 176                       </td>
 177                       <td className="text-right d-none d-lg-table-cell">
 178                         {numToSI(cv.counts.posts)}
 179                       </td>
 180                       <td className="text-right d-none d-lg-table-cell">
 181                         {numToSI(cv.counts.comments)}
 182                       </td>
 183                       <td className="text-right">
 184                         {cv.subscribed == SubscribedType.Subscribed && (
 185                           <button
 186                             className="btn btn-link d-inline-block"
 187                             onClick={linkEvent(
 188                               cv.community.id,
 189                               this.handleUnsubscribe
 190                             )}
 191                           >
 192                             {i18n.t("unsubscribe")}
 193                           </button>
 194                         )}
 195                         {cv.subscribed == SubscribedType.NotSubscribed && (
 196                           <button
 197                             className="btn btn-link d-inline-block"
 198                             onClick={linkEvent(
 199                               cv.community.id,
 200                               this.handleSubscribe
 201                             )}
 202                           >
 203                             {i18n.t("subscribe")}
 204                           </button>
 205                         )}
 206                         {cv.subscribed == SubscribedType.Pending && (
 207                           <div className="text-warning d-inline-block">
 208                             {i18n.t("subscribe_pending")}
 209                           </div>
 210                         )}
 211                       </td>
 212                     </tr>
 213                   ))}
 214                 </tbody>
 215               </table>
 216             </div>
 217             <Paginator
 218               page={this.state.page}
 219               onChange={this.handlePageChange}
 220             />
 221           </div>
 222         )}
 223       </div>
 224     );
 225   }
 226
 227   searchForm() {
 228     return (
 229       <form
 230         className="form-inline"
 231         onSubmit={linkEvent(this, this.handleSearchSubmit)}
 232       >
 233         <input
 234           type="text"
 235           id="communities-search"
 236           className="form-control mr-2 mb-2"
 237           value={this.state.searchText}
 238           placeholder={`${i18n.t("search")}...`}
 239           onInput={linkEvent(this, this.handleSearchChange)}
 240           required
 241           minLength={3}
 242         />
 243         <label className="sr-only" htmlFor="communities-search">
 244           {i18n.t("search")}
 245         </label>
 246         <button type="submit" className="btn btn-secondary mr-2 mb-2">
 247           <span>{i18n.t("search")}</span>
 248         </button>
 249       </form>
 250     );
 251   }
 252
 253   updateUrl(paramUpdates: CommunitiesProps) {
 254     const page = paramUpdates.page || this.state.page;
 255     const listingTypeStr = paramUpdates.listingType || this.state.listingType;
 256     this.props.history.push(
 257       `/communities/listing_type/${listingTypeStr}/page/${page}`
 258     );
 259   }
 260
 261   handlePageChange(page: number) {
 262     this.updateUrl({ page });
 263   }
 264
 265   handleListingTypeChange(val: ListingType) {
 266     this.updateUrl({
 267       listingType: val,
 268       page: 1,
 269     });
 270   }
 271
 272   handleUnsubscribe(communityId: number) {
 273     let auth = myAuth();
 274     if (auth) {
 275       let form: FollowCommunity = {
 276         community_id: communityId,
 277         follow: false,
 278         auth,
 279       };
 280       WebSocketService.Instance.send(wsClient.followCommunity(form));
 281     }
 282   }
 283
 284   handleSubscribe(communityId: number) {
 285     let auth = myAuth();
 286     if (auth) {
 287       let form: FollowCommunity = {
 288         community_id: communityId,
 289         follow: true,
 290         auth,
 291       };
 292       WebSocketService.Instance.send(wsClient.followCommunity(form));
 293     }
 294   }
 295
 296   handleSearchChange(i: Communities, event: any) {
 297     i.setState({ searchText: event.target.value });
 298   }
 299
 300   handleSearchSubmit(i: Communities) {
 301     const searchParamEncoded = encodeURIComponent(i.state.searchText);
 302     i.context.router.history.push(
 303       `/search/q/${searchParamEncoded}/type/Communities/sort/TopAll/listing_type/All/community_id/0/creator_id/0/page/1`
 304     );
 305   }
 306
 307   refetch() {
 308     let listCommunitiesForm: ListCommunities = {
 309       type_: this.state.listingType,
 310       sort: SortType.TopMonth,
 311       limit: communityLimit,
 312       page: this.state.page,
 313       auth: myAuth(false),
 314     };
 315
 316     WebSocketService.Instance.send(
 317       wsClient.listCommunities(listCommunitiesForm)
 318     );
 319   }
 320
 321   static fetchInitialData(req: InitialFetchRequest): Promise<any>[] {
 322     let pathSplit = req.path.split("/");
 323     let type_: ListingType = pathSplit[3]
 324       ? ListingType[pathSplit[3]]
 325       : ListingType.Local;
 326     let page = pathSplit[5] ? Number(pathSplit[5]) : 1;
 327     let listCommunitiesForm: ListCommunities = {
 328       type_,
 329       sort: SortType.TopMonth,
 330       limit: communityLimit,
 331       page,
 332       auth: req.auth,
 333     };
 334
 335     return [req.client.listCommunities(listCommunitiesForm)];
 336   }
 337
 338   parseMessage(msg: any) {
 339     let op = wsUserOp(msg);
 340     console.log(msg);
 341     if (msg.error) {
 342       toast(i18n.t(msg.error), "danger");
 343       return;
 344     } else if (op == UserOperation.ListCommunities) {
 345       let data = wsJsonToRes<ListCommunitiesResponse>(msg);
 346       this.setState({ listCommunitiesResponse: data, loading: false });
 347       window.scrollTo(0, 0);
 348     } else if (op == UserOperation.FollowCommunity) {
 349       let data = wsJsonToRes<CommunityResponse>(msg);
 350       let res = this.state.listCommunitiesResponse;
 351       let found = res?.communities.find(
 352         c => c.community.id == data.community_view.community.id
 353       );
 354       if (found) {
 355         found.subscribed = data.community_view.subscribed;
 356         found.counts.subscribers = data.community_view.counts.subscribers;
 357         this.setState(this.state);
 358       }
 359     }
 360   }
 361 }