ui/src/components/create-community.tsx

   1 import { Component, linkEvent } from 'inferno';
   2 import { Subscription } from "rxjs";
   3 import { retryWhen, delay, take } from 'rxjs/operators';
   4 import { CommunityForm, UserOperation, Category, ListCategoriesResponse } from '../interfaces';
   5 import { WebSocketService, UserService } from '../services';
   6 import { msgOp } from '../utils';
   7
   8 import { Community } from '../interfaces';
   9
  10 interface State {
  11   communityForm: CommunityForm;
  12   categories: Array<Category>;
  13 }
  14
  15 export class CreateCommunity extends Component<any, State> {
  16   private subscription: Subscription;
  17
  18   private emptyState: State = {
  19     communityForm: {
  20       name: null,
  21       title: null,
  22       category_id: null
  23     },
  24     categories: []
  25   }
  26
  27   constructor(props, context) {
  28     super(props, context);
  29
  30     this.state = this.emptyState;
  31
  32     this.subscription = WebSocketService.Instance.subject
  33       .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
  34       .subscribe(
  35         (msg) => this.parseMessage(msg),
  36         (err) => console.error(err),
  37         () => console.log("complete")
  38       );
  39
  40     WebSocketService.Instance.listCategories();
  41   }
  42
  43   componentWillUnmount() {
  44     this.subscription.unsubscribe();
  45   }
  46
  47   render() {
  48     return (
  49       <div class="container">
  50         <div class="row">
  51           <div class="col-12 col-lg-6 mb-4">
  52             {this.communityForm()}
  53           </div>
  54         </div>
  55       </div>
  56     )
  57   }
  58
  59   communityForm() {
  60     return (
  61       <div>
  62         <form onSubmit={linkEvent(this, this.handleCreateCommunitySubmit)}>
  63           <h3>Create Forum</h3>
  64           <div class="form-group row">
  65             <label class="col-sm-2 col-form-label">Name</label>
  66             <div class="col-sm-10">
  67               <input type="text" class="form-control" value={this.state.communityForm.name} onInput={linkEvent(this, this.handleCommunityNameChange)} required minLength={3} pattern="[a-z0-9_]+" title="lowercase, underscores, and no spaces."/>
  68             </div>
  69           </div>
  70           <div class="form-group row">
  71             <label class="col-sm-2 col-form-label">Title / Headline</label>
  72             <div class="col-sm-10">
  73               <input type="text" value={this.state.communityForm.title} onInput={linkEvent(this, this.handleCommunityTitleChange)} class="form-control" required minLength={3} />
  74             </div>
  75           </div>
  76           <div class="form-group row">
  77             <label class="col-sm-2 col-form-label">Description / Sidebar</label>
  78             <div class="col-sm-10">
  79               <textarea value={this.state.communityForm.description} onInput={linkEvent(this, this.handleCommunityDescriptionChange)} class="form-control" rows={6} />
  80             </div>
  81           </div>
  82           <div class="form-group row">
  83             <label class="col-sm-2 col-form-label">Category</label>
  84             <div class="col-sm-10">
  85               <select class="form-control" value={this.state.communityForm.category_id} onInput={linkEvent(this, this.handleCommunityCategoryChange)}>
  86                 {this.state.categories.map(category =>
  87                   <option value={category.id}>{category.name}</option>
  88                 )}
  89               </select>
  90             </div>
  91           </div>
  92           <div class="form-group row">
  93             <div class="col-sm-10">
  94               <button type="submit" class="btn btn-secondary">Create</button>
  95             </div>
  96           </div>
  97         </form>
  98       </div>
  99     );
 100   }
 101
 102   handleCreateCommunitySubmit(i: CreateCommunity, event) {
 103     event.preventDefault();
 104     WebSocketService.Instance.createCommunity(i.state.communityForm);
 105   }
 106
 107   handleCommunityNameChange(i: CreateCommunity, event) {
 108     i.state.communityForm.name = event.target.value;
 109     i.setState(i.state);
 110   }
 111
 112   handleCommunityTitleChange(i: CreateCommunity, event) {
 113     i.state.communityForm.title = event.target.value;
 114     i.setState(i.state);
 115   }
 116
 117   handleCommunityDescriptionChange(i: CreateCommunity, event) {
 118     i.state.communityForm.description = event.target.value;
 119     i.setState(i.state);
 120   }
 121
 122   handleCommunityCategoryChange(i: CreateCommunity, event) {
 123     i.state.communityForm.category_id = Number(event.target.value);
 124     i.setState(i.state);
 125   }
 126
 127   parseMessage(msg: any) {
 128     let op: UserOperation = msgOp(msg);
 129     console.log(msg);
 130     if (msg.error) {
 131       alert(msg.error);
 132       return;
 133     } else if (op == UserOperation.ListCategories){
 134       let res: ListCategoriesResponse = msg;
 135       this.state.categories = res.categories;
 136       this.state.communityForm.category_id = res.categories[0].id;
 137       this.setState(this.state);
 138     } else if (op == UserOperation.CreateCommunity) {
 139       let community: Community = msg.community;
 140       this.props.history.push(`/community/${community.id}`);
 141     }
 142   }
 143
 144 }