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