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 } 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 }
  13
  14 export class CreateCommunity extends Component<any, State> {
  15   private subscription: Subscription;
  16
  17   private emptyState: State = {
  18     communityForm: {
  19       name: null,
  20     }
  21   }
  22
  23   constructor(props, context) {
  24     super(props, context);
  25
  26     this.state = this.emptyState;
  27
  28     this.subscription = WebSocketService.Instance.subject
  29       .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
  30       .subscribe(
  31         (msg) => this.parseMessage(msg),
  32         (err) => console.error(err),
  33         () => console.log("complete")
  34       );
  35   }
  36
  37   componentWillUnmount() {
  38     this.subscription.unsubscribe();
  39   }
  40
  41   render() {
  42     return (
  43       <div class="container">
  44         <div class="row">
  45           <div class="col-12 col-lg-6 mb-4">
  46             {this.communityForm()}
  47           </div>
  48         </div>
  49       </div>
  50     )
  51   }
  52
  53   communityForm() {
  54     return (
  55       <div>
  56         <form onSubmit={linkEvent(this, this.handleCreateCommunitySubmit)}>
  57           <h3>Create Forum</h3>
  58           <div class="form-group row">
  59             <label class="col-sm-2 col-form-label">Name</label>
  60             <div class="col-sm-10">
  61               <input type="text" class="form-control" value={this.state.communityForm.name} onInput={linkEvent(this, this.handleCommunityNameChange)} required minLength={3} />
  62             </div>
  63           </div>
  64           <div class="form-group row">
  65             <div class="col-sm-10">
  66               <button type="submit" class="btn btn-secondary">Create</button>
  67             </div>
  68           </div>
  69         </form>
  70       </div>
  71     );
  72   }
  73
  74   handleCreateCommunitySubmit(i: CreateCommunity, event) {
  75     event.preventDefault();
  76     WebSocketService.Instance.createCommunity(i.state.communityForm);
  77   }
  78
  79   handleCommunityNameChange(i: CreateCommunity, event) {
  80     i.state.communityForm.name = event.target.value;
  81     i.setState(i.state);
  82   }
  83
  84   parseMessage(msg: any) {
  85     let op: UserOperation = msgOp(msg);
  86     console.log(msg);
  87     if (msg.error) {
  88       alert(msg.error);
  89       return;
  90     } else {
  91       if (op == UserOperation.CreateCommunity) {
  92         let community: Community = msg.community;
  93         this.props.history.push(`/community/${community.id}`);
  94       }
  95     }
  96   }
  97
  98 }