src/shared/components/community.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import { Subscription } from 'rxjs';
   3 import { DataType, InitialFetchRequest } from '../interfaces';
   4 import {
   5   UserOperation,
   6   GetCommunityResponse,
   7   CommunityResponse,
   8   SortType,
   9   Post,
  10   GetPostsForm,
  11   GetCommunityForm,
  12   ListingType,
  13   GetPostsResponse,
  14   PostResponse,
  15   AddModToCommunityResponse,
  16   BanFromCommunityResponse,
  17   Comment,
  18   GetCommentsForm,
  19   GetCommentsResponse,
  20   CommentResponse,
  21   WebSocketJsonResponse,
  22   GetSiteResponse,
  23   Category,
  24   ListCategoriesResponse,
  25 } from 'lemmy-js-client';
  26 import { UserService, WebSocketService } from '../services';
  27 import { PostListings } from './post-listings';
  28 import { CommentNodes } from './comment-nodes';
  29 import { HtmlTags } from './html-tags';
  30 import { SortSelect } from './sort-select';
  31 import { DataTypeSelect } from './data-type-select';
  32 import { Sidebar } from './sidebar';
  33 import { CommunityLink } from './community-link';
  34 import { BannerIconHeader } from './banner-icon-header';
  35 import {
  36   wsJsonToRes,
  37   fetchLimit,
  38   toast,
  39   getPageFromProps,
  40   getSortTypeFromProps,
  41   getDataTypeFromProps,
  42   editCommentRes,
  43   saveCommentRes,
  44   createCommentLikeRes,
  45   createPostLikeFindRes,
  46   editPostFindRes,
  47   commentsToFlatNodes,
  48   setupTippy,
  49   notifyPost,
  50   setIsoData,
  51   wsSubscribe,
  52   isBrowser,
  53   setAuth,
  54   communityRSSUrl,
  55 } from '../utils';
  56 import { i18n } from '../i18next';
  57
  58 interface State {
  59   communityRes: GetCommunityResponse;
  60   siteRes: GetSiteResponse;
  61   communityId: number;
  62   communityName: string;
  63   communityLoading: boolean;
  64   postsLoading: boolean;
  65   commentsLoading: boolean;
  66   posts: Post[];
  67   comments: Comment[];
  68   dataType: DataType;
  69   sort: SortType;
  70   page: number;
  71   categories: Category[];
  72 }
  73
  74 interface CommunityProps {
  75   dataType: DataType;
  76   sort: SortType;
  77   page: number;
  78 }
  79
  80 interface UrlParams {
  81   dataType?: string;
  82   sort?: SortType;
  83   page?: number;
  84 }
  85
  86 export class Community extends Component<any, State> {
  87   private isoData = setIsoData(this.context);
  88   private subscription: Subscription;
  89   private emptyState: State = {
  90     communityRes: undefined,
  91     communityId: Number(this.props.match.params.id),
  92     communityName: this.props.match.params.name,
  93     communityLoading: true,
  94     postsLoading: true,
  95     commentsLoading: true,
  96     posts: [],
  97     comments: [],
  98     dataType: getDataTypeFromProps(this.props),
  99     sort: getSortTypeFromProps(this.props),
 100     page: getPageFromProps(this.props),
 101     siteRes: this.isoData.site,
 102     categories: [],
 103   };
 104
 105   constructor(props: any, context: any) {
 106     super(props, context);
 107
 108     this.state = this.emptyState;
 109     this.handleSortChange = this.handleSortChange.bind(this);
 110     this.handleDataTypeChange = this.handleDataTypeChange.bind(this);
 111
 112     this.parseMessage = this.parseMessage.bind(this);
 113     this.subscription = wsSubscribe(this.parseMessage);
 114
 115     // Only fetch the data if coming from another route
 116     if (this.isoData.path == this.context.router.route.match.url) {
 117       this.state.communityRes = this.isoData.routeData[0];
 118       if (this.state.dataType == DataType.Post) {
 119         this.state.posts = this.isoData.routeData[1].posts;
 120       } else {
 121         this.state.comments = this.isoData.routeData[1].comments;
 122       }
 123       this.state.categories = this.isoData.routeData[2].categories;
 124       this.state.communityLoading = false;
 125       this.state.postsLoading = false;
 126       this.state.commentsLoading = false;
 127     } else {
 128       this.fetchCommunity();
 129       this.fetchData();
 130       WebSocketService.Instance.listCategories();
 131     }
 132     setupTippy();
 133   }
 134
 135   fetchCommunity() {
 136     let form: GetCommunityForm = {
 137       id: this.state.communityId ? this.state.communityId : null,
 138       name: this.state.communityName ? this.state.communityName : null,
 139     };
 140     WebSocketService.Instance.getCommunity(form);
 141   }
 142
 143   componentWillUnmount() {
 144     if (isBrowser()) {
 145       this.subscription.unsubscribe();
 146       window.isoData.path = undefined;
 147     }
 148   }
 149
 150   static getDerivedStateFromProps(props: any): CommunityProps {
 151     return {
 152       dataType: getDataTypeFromProps(props),
 153       sort: getSortTypeFromProps(props),
 154       page: getPageFromProps(props),
 155     };
 156   }
 157
 158   static fetchInitialData(req: InitialFetchRequest): Promise<any>[] {
 159     let pathSplit = req.path.split('/');
 160     let promises: Promise<any>[] = [];
 161
 162     // It can be /c/main, or /c/1
 163     let idOrName = pathSplit[2];
 164     let id: number;
 165     let name_: string;
 166     if (isNaN(Number(idOrName))) {
 167       name_ = idOrName;
 168     } else {
 169       id = Number(idOrName);
 170     }
 171
 172     let communityForm: GetCommunityForm = id ? { id } : { name: name_ };
 173     setAuth(communityForm, req.auth);
 174     promises.push(req.client.getCommunity(communityForm));
 175
 176     let dataType: DataType = pathSplit[4]
 177       ? DataType[pathSplit[4]]
 178       : DataType.Post;
 179
 180     let sort: SortType = pathSplit[6]
 181       ? SortType[pathSplit[6]]
 182       : UserService.Instance.user
 183       ? Object.values(SortType)[UserService.Instance.user.default_sort_type]
 184       : SortType.Active;
 185
 186     let page = pathSplit[8] ? Number(pathSplit[8]) : 1;
 187
 188     if (dataType == DataType.Post) {
 189       let getPostsForm: GetPostsForm = {
 190         page,
 191         limit: fetchLimit,
 192         sort,
 193         type_: ListingType.Community,
 194       };
 195       this.setIdOrName(getPostsForm, id, name_);
 196       setAuth(getPostsForm, req.auth);
 197       promises.push(req.client.getPosts(getPostsForm));
 198     } else {
 199       let getCommentsForm: GetCommentsForm = {
 200         page,
 201         limit: fetchLimit,
 202         sort,
 203         type_: ListingType.Community,
 204       };
 205       this.setIdOrName(getCommentsForm, id, name_);
 206       setAuth(getCommentsForm, req.auth);
 207       promises.push(req.client.getComments(getCommentsForm));
 208     }
 209
 210     promises.push(req.client.listCategories());
 211
 212     return promises;
 213   }
 214
 215   static setIdOrName(obj: any, id: number, name_: string) {
 216     if (id) {
 217       obj.community_id = id;
 218     } else {
 219       obj.community_name = name_;
 220     }
 221   }
 222
 223   componentDidUpdate(_: any, lastState: State) {
 224     if (
 225       lastState.dataType !== this.state.dataType ||
 226       lastState.sort !== this.state.sort ||
 227       lastState.page !== this.state.page
 228     ) {
 229       this.setState({ postsLoading: true, commentsLoading: true });
 230       this.fetchData();
 231     }
 232   }
 233
 234   get documentTitle(): string {
 235     return `${this.state.communityRes.community.title} - ${this.state.siteRes.site.name}`;
 236   }
 237
 238   render() {
 239     return (
 240       <div class="container">
 241         {this.state.communityLoading ? (
 242           <h5>
 243             <svg class="icon icon-spinner spin">
 244               <use xlinkHref="#icon-spinner"></use>
 245             </svg>
 246           </h5>
 247         ) : (
 248           <div class="row">
 249             <div class="col-12 col-md-8">
 250               <HtmlTags
 251                 title={this.documentTitle}
 252                 path={this.context.router.route.match.url}
 253                 description={this.state.communityRes.community.description}
 254                 image={this.state.communityRes.community.icon}
 255               />
 256               {this.communityInfo()}
 257               {this.selects()}
 258               {this.listings()}
 259               {this.paginator()}
 260             </div>
 261             <div class="col-12 col-md-4">
 262               <Sidebar
 263                 community={this.state.communityRes.community}
 264                 moderators={this.state.communityRes.moderators}
 265                 admins={this.state.siteRes.admins}
 266                 online={this.state.communityRes.online}
 267                 enableNsfw={this.state.siteRes.site.enable_nsfw}
 268                 categories={this.state.categories}
 269               />
 270             </div>
 271           </div>
 272         )}
 273       </div>
 274     );
 275   }
 276
 277   listings() {
 278     return this.state.dataType == DataType.Post ? (
 279       this.state.postsLoading ? (
 280         <h5>
 281           <svg class="icon icon-spinner spin">
 282             <use xlinkHref="#icon-spinner"></use>
 283           </svg>
 284         </h5>
 285       ) : (
 286         <PostListings
 287           posts={this.state.posts}
 288           removeDuplicates
 289           sort={this.state.sort}
 290           enableDownvotes={this.state.siteRes.site.enable_downvotes}
 291           enableNsfw={this.state.siteRes.site.enable_nsfw}
 292         />
 293       )
 294     ) : this.state.commentsLoading ? (
 295       <h5>
 296         <svg class="icon icon-spinner spin">
 297           <use xlinkHref="#icon-spinner"></use>
 298         </svg>
 299       </h5>
 300     ) : (
 301       <CommentNodes
 302         nodes={commentsToFlatNodes(this.state.comments)}
 303         noIndent
 304         sortType={this.state.sort}
 305         showContext
 306         enableDownvotes={this.state.siteRes.site.enable_downvotes}
 307       />
 308     );
 309   }
 310
 311   communityInfo() {
 312     return (
 313       <div>
 314         <BannerIconHeader
 315           banner={this.state.communityRes.community.banner}
 316           icon={this.state.communityRes.community.icon}
 317         />
 318         <h5 class="mb-0">{this.state.communityRes.community.title}</h5>
 319         <CommunityLink
 320           community={this.state.communityRes.community}
 321           realLink
 322           useApubName
 323           muted
 324           hideAvatar
 325         />
 326         <hr />
 327       </div>
 328     );
 329   }
 330
 331   selects() {
 332     return (
 333       <div class="mb-3">
 334         <span class="mr-3">
 335           <DataTypeSelect
 336             type_={this.state.dataType}
 337             onChange={this.handleDataTypeChange}
 338           />
 339         </span>
 340         <span class="mr-2">
 341           <SortSelect sort={this.state.sort} onChange={this.handleSortChange} />
 342         </span>
 343         <a
 344           href={communityRSSUrl(
 345             this.state.communityRes.community.actor_id,
 346             this.state.sort
 347           )}
 348           target="_blank"
 349           title="RSS"
 350           rel="noopener"
 351         >
 352           <svg class="icon text-muted small">
 353             <use xlinkHref="#icon-rss">#</use>
 354           </svg>
 355         </a>
 356       </div>
 357     );
 358   }
 359
 360   paginator() {
 361     return (
 362       <div class="my-2">
 363         {this.state.page > 1 && (
 364           <button
 365             class="btn btn-secondary mr-1"
 366             onClick={linkEvent(this, this.prevPage)}
 367           >
 368             {i18n.t('prev')}
 369           </button>
 370         )}
 371         {this.state.posts.length > 0 && (
 372           <button
 373             class="btn btn-secondary"
 374             onClick={linkEvent(this, this.nextPage)}
 375           >
 376             {i18n.t('next')}
 377           </button>
 378         )}
 379       </div>
 380     );
 381   }
 382
 383   nextPage(i: Community) {
 384     i.updateUrl({ page: i.state.page + 1 });
 385     window.scrollTo(0, 0);
 386   }
 387
 388   prevPage(i: Community) {
 389     i.updateUrl({ page: i.state.page - 1 });
 390     window.scrollTo(0, 0);
 391   }
 392
 393   handleSortChange(val: SortType) {
 394     this.updateUrl({ sort: val, page: 1 });
 395     window.scrollTo(0, 0);
 396   }
 397
 398   handleDataTypeChange(val: DataType) {
 399     this.updateUrl({ dataType: DataType[val], page: 1 });
 400     window.scrollTo(0, 0);
 401   }
 402
 403   updateUrl(paramUpdates: UrlParams) {
 404     const dataTypeStr = paramUpdates.dataType || DataType[this.state.dataType];
 405     const sortStr = paramUpdates.sort || this.state.sort;
 406     const page = paramUpdates.page || this.state.page;
 407     this.props.history.push(
 408       `/c/${this.state.communityRes.community.name}/data_type/${dataTypeStr}/sort/${sortStr}/page/${page}`
 409     );
 410   }
 411
 412   fetchData() {
 413     if (this.state.dataType == DataType.Post) {
 414       let getPostsForm: GetPostsForm = {
 415         page: this.state.page,
 416         limit: fetchLimit,
 417         sort: this.state.sort,
 418         type_: ListingType.Community,
 419         community_id: this.state.communityId,
 420         community_name: this.state.communityName,
 421       };
 422       WebSocketService.Instance.getPosts(getPostsForm);
 423     } else {
 424       let getCommentsForm: GetCommentsForm = {
 425         page: this.state.page,
 426         limit: fetchLimit,
 427         sort: this.state.sort,
 428         type_: ListingType.Community,
 429         community_id: this.state.communityId,
 430         community_name: this.state.communityName,
 431       };
 432       WebSocketService.Instance.getComments(getCommentsForm);
 433     }
 434   }
 435
 436   parseMessage(msg: WebSocketJsonResponse) {
 437     console.log(msg);
 438     let res = wsJsonToRes(msg);
 439     if (msg.error) {
 440       toast(i18n.t(msg.error), 'danger');
 441       this.context.router.history.push('/');
 442       return;
 443     } else if (msg.reconnect) {
 444       WebSocketService.Instance.communityJoin({
 445         community_id: this.state.communityRes.community.id,
 446       });
 447       this.fetchData();
 448     } else if (res.op == UserOperation.GetCommunity) {
 449       let data = res.data as GetCommunityResponse;
 450       this.state.communityRes = data;
 451       this.state.communityLoading = false;
 452       this.setState(this.state);
 453       WebSocketService.Instance.communityJoin({
 454         community_id: data.community.id,
 455       });
 456     } else if (
 457       res.op == UserOperation.EditCommunity ||
 458       res.op == UserOperation.DeleteCommunity ||
 459       res.op == UserOperation.RemoveCommunity
 460     ) {
 461       let data = res.data as CommunityResponse;
 462       this.state.communityRes.community = data.community;
 463       this.setState(this.state);
 464     } else if (res.op == UserOperation.FollowCommunity) {
 465       let data = res.data as CommunityResponse;
 466       this.state.communityRes.community.subscribed = data.community.subscribed;
 467       this.state.communityRes.community.number_of_subscribers =
 468         data.community.number_of_subscribers;
 469       this.setState(this.state);
 470     } else if (res.op == UserOperation.GetPosts) {
 471       let data = res.data as GetPostsResponse;
 472       this.state.posts = data.posts;
 473       this.state.postsLoading = false;
 474       this.setState(this.state);
 475       setupTippy();
 476     } else if (
 477       res.op == UserOperation.EditPost ||
 478       res.op == UserOperation.DeletePost ||
 479       res.op == UserOperation.RemovePost ||
 480       res.op == UserOperation.LockPost ||
 481       res.op == UserOperation.StickyPost ||
 482       res.op == UserOperation.SavePost
 483     ) {
 484       let data = res.data as PostResponse;
 485       editPostFindRes(data, this.state.posts);
 486       this.setState(this.state);
 487     } else if (res.op == UserOperation.CreatePost) {
 488       let data = res.data as PostResponse;
 489       this.state.posts.unshift(data.post);
 490       notifyPost(data.post, this.context.router);
 491       this.setState(this.state);
 492     } else if (res.op == UserOperation.CreatePostLike) {
 493       let data = res.data as PostResponse;
 494       createPostLikeFindRes(data, this.state.posts);
 495       this.setState(this.state);
 496     } else if (res.op == UserOperation.AddModToCommunity) {
 497       let data = res.data as AddModToCommunityResponse;
 498       this.state.communityRes.moderators = data.moderators;
 499       this.setState(this.state);
 500     } else if (res.op == UserOperation.BanFromCommunity) {
 501       let data = res.data as BanFromCommunityResponse;
 502
 503       this.state.posts
 504         .filter(p => p.creator_id == data.user.id)
 505         .forEach(p => (p.banned = data.banned));
 506
 507       this.setState(this.state);
 508     } else if (res.op == UserOperation.GetComments) {
 509       let data = res.data as GetCommentsResponse;
 510       this.state.comments = data.comments;
 511       this.state.commentsLoading = false;
 512       this.setState(this.state);
 513     } else if (
 514       res.op == UserOperation.EditComment ||
 515       res.op == UserOperation.DeleteComment ||
 516       res.op == UserOperation.RemoveComment
 517     ) {
 518       let data = res.data as CommentResponse;
 519       editCommentRes(data, this.state.comments);
 520       this.setState(this.state);
 521     } else if (res.op == UserOperation.CreateComment) {
 522       let data = res.data as CommentResponse;
 523
 524       // Necessary since it might be a user reply
 525       if (data.recipient_ids.length == 0) {
 526         this.state.comments.unshift(data.comment);
 527         this.setState(this.state);
 528       }
 529     } else if (res.op == UserOperation.SaveComment) {
 530       let data = res.data as CommentResponse;
 531       saveCommentRes(data, this.state.comments);
 532       this.setState(this.state);
 533     } else if (res.op == UserOperation.CreateCommentLike) {
 534       let data = res.data as CommentResponse;
 535       createCommentLikeRes(data, this.state.comments);
 536       this.setState(this.state);
 537     } else if (res.op == UserOperation.ListCategories) {
 538       let data = res.data as ListCategoriesResponse;
 539       this.state.categories = data.categories;
 540       this.setState(this.state);
 541     }
 542   }
 543 }