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   WithPromiseKeys,
  20   getPageFromString,
  21   getQueryParams,
  22   getQueryString,
  23   isBrowser,
  24   myAuth,
  25   numToSI,
  26   setIsoData,
  27   showLocal,
  28   toast,
  29   wsClient,
  30   wsSubscribe,
  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 = 50;
  39
  40 interface CommunitiesData {
  41   listCommunitiesResponse: ListCommunitiesResponse;
  42 }
  43
  44 interface CommunitiesState {
  45   listCommunitiesResponse?: ListCommunitiesResponse;
  46   loading: boolean;
  47   siteRes: GetSiteResponse;
  48   searchText: string;
  49 }
  50
  51 interface CommunitiesProps {
  52   listingType: ListingType;
  53   page: number;
  54 }
  55
  56 function getCommunitiesQueryParams() {
  57   return getQueryParams<CommunitiesProps>({
  58     listingType: getListingTypeFromQuery,
  59     page: getPageFromString,
  60   });
  61 }
  62
  63 function getListingTypeFromQuery(listingType?: string): ListingType {
  64   return listingType ? (listingType as ListingType) : "Local";
  65 }
  66
  67 function toggleSubscribe(community_id: number, follow: boolean) {
  68   const auth = myAuth();
  69   if (auth) {
  70     const form: FollowCommunity = {
  71       community_id,
  72       follow,
  73       auth,
  74     };
  75
  76     WebSocketService.Instance.send(wsClient.followCommunity(form));
  77   }
  78 }
  79
  80 function refetch() {
  81   const { listingType, page } = getCommunitiesQueryParams();
  82
  83   const listCommunitiesForm: ListCommunities = {
  84     type_: listingType,
  85     sort: "TopMonth",
  86     limit: communityLimit,
  87     page,
  88     auth: myAuth(false),
  89   };
  90
  91   WebSocketService.Instance.send(wsClient.listCommunities(listCommunitiesForm));
  92 }
  93
  94 export class Communities extends Component<any, CommunitiesState> {
  95   private subscription?: Subscription;
  96   private isoData = setIsoData<CommunitiesData>(this.context);
  97   state: CommunitiesState = {
  98     loading: true,
  99     siteRes: this.isoData.site_res,
 100     searchText: "",
 101   };
 102
 103   constructor(props: any, context: any) {
 104     super(props, context);
 105     this.handlePageChange = this.handlePageChange.bind(this);
 106     this.handleListingTypeChange = this.handleListingTypeChange.bind(this);
 107
 108     this.parseMessage = this.parseMessage.bind(this);
 109     this.subscription = wsSubscribe(this.parseMessage);
 110
 111     // Only fetch the data if coming from another route
 112     if (this.isoData.path === this.context.router.route.match.url) {
 113       const { listCommunitiesResponse } = this.isoData.routeData;
 114
 115       this.state = {
 116         ...this.state,
 117         listCommunitiesResponse,
 118         loading: false,
 119       };
 120     } else {
 121       refetch();
 122     }
 123   }
 124
 125   componentWillUnmount() {
 126     if (isBrowser()) {
 127       this.subscription?.unsubscribe();
 128     }
 129   }
 130
 131   get documentTitle(): string {
 132     return `${i18n.t("communities")} - ${
 133       this.state.siteRes.site_view.site.name
 134     }`;
 135   }
 136
 137   render() {
 138     const { listingType, page } = getCommunitiesQueryParams();
 139
 140     return (
 141       <div className="container-lg">
 142         <HtmlTags
 143           title={this.documentTitle}
 144           path={this.context.router.route.match.url}
 145         />
 146         {this.state.loading ? (
 147           <h5>
 148             <Spinner large />
 149           </h5>
 150         ) : (
 151           <div>
 152             <div className="row">
 153               <div className="col-md-6">
 154                 <h4>{i18n.t("list_of_communities")}</h4>
 155                 <span className="mb-2">
 156                   <ListingTypeSelect
 157                     type_={listingType}
 158                     showLocal={showLocal(this.isoData)}
 159                     showSubscribed
 160                     onChange={this.handleListingTypeChange}
 161                   />
 162                 </span>
 163               </div>
 164               <div className="col-md-6">
 165                 <div className="float-md-right">{this.searchForm()}</div>
 166               </div>
 167             </div>
 168
 169             <div className="table-responsive">
 170               <table
 171                 id="community_table"
 172                 className="table table-sm table-hover"
 173               >
 174                 <thead className="pointer">
 175                   <tr>
 176                     <th>{i18n.t("name")}</th>
 177                     <th className="text-right">{i18n.t("subscribers")}</th>
 178                     <th className="text-right">
 179                       {i18n.t("users")} / {i18n.t("month")}
 180                     </th>
 181                     <th className="text-right d-none d-lg-table-cell">
 182                       {i18n.t("posts")}
 183                     </th>
 184                     <th className="text-right d-none d-lg-table-cell">
 185                       {i18n.t("comments")}
 186                     </th>
 187                     <th></th>
 188                   </tr>
 189                 </thead>
 190                 <tbody>
 191                   {this.state.listCommunitiesResponse?.communities.map(cv => (
 192                     <tr key={cv.community.id}>
 193                       <td>
 194                         <CommunityLink community={cv.community} />
 195                       </td>
 196                       <td className="text-right">
 197                         {numToSI(cv.counts.subscribers)}
 198                       </td>
 199                       <td className="text-right">
 200                         {numToSI(cv.counts.users_active_month)}
 201                       </td>
 202                       <td className="text-right d-none d-lg-table-cell">
 203                         {numToSI(cv.counts.posts)}
 204                       </td>
 205                       <td className="text-right d-none d-lg-table-cell">
 206                         {numToSI(cv.counts.comments)}
 207                       </td>
 208                       <td className="text-right">
 209                         {cv.subscribed == "Subscribed" && (
 210                           <button
 211                             className="btn btn-link d-inline-block"
 212                             onClick={linkEvent(
 213                               cv.community.id,
 214                               this.handleUnsubscribe
 215                             )}
 216                           >
 217                             {i18n.t("unsubscribe")}
 218                           </button>
 219                         )}
 220                         {cv.subscribed === "NotSubscribed" && (
 221                           <button
 222                             className="btn btn-link d-inline-block"
 223                             onClick={linkEvent(
 224                               cv.community.id,
 225                               this.handleSubscribe
 226                             )}
 227                           >
 228                             {i18n.t("subscribe")}
 229                           </button>
 230                         )}
 231                         {cv.subscribed === "Pending" && (
 232                           <div className="text-warning d-inline-block">
 233                             {i18n.t("subscribe_pending")}
 234                           </div>
 235                         )}
 236                       </td>
 237                     </tr>
 238                   ))}
 239                 </tbody>
 240               </table>
 241             </div>
 242             <Paginator page={page} onChange={this.handlePageChange} />
 243           </div>
 244         )}
 245       </div>
 246     );
 247   }
 248
 249   searchForm() {
 250     return (
 251       <form
 252         className="form-inline"
 253         onSubmit={linkEvent(this, this.handleSearchSubmit)}
 254       >
 255         <input
 256           type="text"
 257           id="communities-search"
 258           className="form-control mr-2 mb-2"
 259           value={this.state.searchText}
 260           placeholder={`${i18n.t("search")}...`}
 261           onInput={linkEvent(this, this.handleSearchChange)}
 262           required
 263           minLength={3}
 264         />
 265         <label className="sr-only" htmlFor="communities-search">
 266           {i18n.t("search")}
 267         </label>
 268         <button type="submit" className="btn btn-secondary mr-2 mb-2">
 269           <span>{i18n.t("search")}</span>
 270         </button>
 271       </form>
 272     );
 273   }
 274
 275   updateUrl({ listingType, page }: Partial<CommunitiesProps>) {
 276     const { listingType: urlListingType, page: urlPage } =
 277       getCommunitiesQueryParams();
 278
 279     const queryParams: QueryParams<CommunitiesProps> = {
 280       listingType: listingType ?? urlListingType,
 281       page: (page ?? urlPage)?.toString(),
 282     };
 283
 284     this.props.history.push(`/communities${getQueryString(queryParams)}`);
 285
 286     refetch();
 287   }
 288
 289   handlePageChange(page: number) {
 290     this.updateUrl({ page });
 291   }
 292
 293   handleListingTypeChange(val: ListingType) {
 294     this.updateUrl({
 295       listingType: val,
 296       page: 1,
 297     });
 298   }
 299
 300   handleUnsubscribe(communityId: number) {
 301     toggleSubscribe(communityId, false);
 302   }
 303
 304   handleSubscribe(communityId: number) {
 305     toggleSubscribe(communityId, true);
 306   }
 307
 308   handleSearchChange(i: Communities, event: any) {
 309     i.setState({ searchText: event.target.value });
 310   }
 311
 312   handleSearchSubmit(i: Communities) {
 313     const searchParamEncoded = encodeURIComponent(i.state.searchText);
 314     i.context.router.history.push(`/search?q=${searchParamEncoded}`);
 315   }
 316
 317   static fetchInitialData({
 318     query: { listingType, page },
 319     client,
 320     auth,
 321   }: InitialFetchRequest<
 322     QueryParams<CommunitiesProps>
 323   >): WithPromiseKeys<CommunitiesData> {
 324     const listCommunitiesForm: ListCommunities = {
 325       type_: getListingTypeFromQuery(listingType),
 326       sort: "TopMonth",
 327       limit: communityLimit,
 328       page: getPageFromString(page),
 329       auth: auth,
 330     };
 331
 332     return {
 333       listCommunitiesResponse: client.listCommunities(listCommunitiesForm),
 334     };
 335   }
 336
 337   parseMessage(msg: any) {
 338     const op = wsUserOp(msg);
 339     console.log(msg);
 340     if (msg.error) {
 341       toast(i18n.t(msg.error), "danger");
 342     } else if (op === UserOperation.ListCommunities) {
 343       const data = wsJsonToRes<ListCommunitiesResponse>(msg);
 344       this.setState({ listCommunitiesResponse: data, loading: false });
 345       window.scrollTo(0, 0);
 346     } else if (op === UserOperation.FollowCommunity) {
 347       const {
 348         community_view: {
 349           community,
 350           subscribed,
 351           counts: { subscribers },
 352         },
 353       } = wsJsonToRes<CommunityResponse>(msg);
 354       const res = this.state.listCommunitiesResponse;
 355       const found = res?.communities.find(
 356         ({ community: { id } }) => id == community.id
 357       );
 358
 359       if (found) {
 360         found.subscribed = subscribed;
 361         found.counts.subscribers = subscribers;
 362         this.setState(this.state);
 363       }
 364     }
 365   }
 366 }