client/src/app/shared/shared-main/router/actor-redirect-guard.service.ts

   1 import { forkJoin, of } from 'rxjs'
   2 import { catchError, map } from 'rxjs/operators'
   3 import { Injectable } from '@angular/core'
   4 import { ActivatedRouteSnapshot, Router } from '@angular/router'
   5 import { AccountService } from '../account'
   6 import { VideoChannelService } from '../video-channel'
   7
   8 @Injectable()
   9 export class ActorRedirectGuard {
  10
  11   constructor (
  12     private router: Router,
  13     private accountService: AccountService,
  14     private channelService: VideoChannelService
  15   ) {}
  16
  17   canActivate (route: ActivatedRouteSnapshot) {
  18     const actorName = route.params.actorName
  19
  20     return forkJoin([
  21       this.accountService.getAccount(actorName).pipe(this.orUndefined()),
  22       this.channelService.getVideoChannel(actorName).pipe(this.orUndefined())
  23     ]).pipe(
  24       map(([ account, channel ]) => {
  25         if (account) {
  26           return this.router.parseUrl(`/a/${actorName}`)
  27         }
  28
  29         if (channel) {
  30           return this.router.parseUrl(`/c/${actorName}`)
  31         }
  32
  33         return this.router.parseUrl('/404')
  34       })
  35     )
  36   }
  37
  38   private orUndefined () {
  39     return catchError(() => of(undefined))
  40   }
  41 }