1 import { Injectable } from '@angular/core'
2 import { NavigationCancel, NavigationEnd, Router } from '@angular/router'
3 import { ServerService } from '../server'
6 export class RedirectService {
7 // Default route could change according to the instance configuration
8 static INIT_DEFAULT_ROUTE = '/videos/trending'
9 static INIT_DEFAULT_TRENDING_ALGORITHM = 'most-viewed'
11 private previousUrl: string
12 private currentUrl: string
14 private redirectingToHomepage = false
15 private defaultTrendingAlgorithm = RedirectService.INIT_DEFAULT_TRENDING_ALGORITHM
16 private defaultRoute = RedirectService.INIT_DEFAULT_ROUTE
19 private router: Router,
20 private serverService: ServerService
22 // The config is first loaded from the cache so try to get the default route
23 const config = this.serverService.getHTMLConfig()
24 if (config?.instance?.defaultClientRoute) {
25 this.defaultRoute = config.instance.defaultClientRoute
27 if (config?.trending?.videos?.algorithms?.default) {
28 this.defaultTrendingAlgorithm = config.trending.videos.algorithms.default
32 this.currentUrl = this.router.url
33 router.events.subscribe(event => {
34 if (event instanceof NavigationEnd || event instanceof NavigationCancel) {
35 this.previousUrl = this.currentUrl
36 this.currentUrl = event.url
42 return this.defaultRoute
45 getDefaultTrendingAlgorithm () {
46 return this.defaultTrendingAlgorithm
49 redirectToPreviousRoute () {
55 if (this.previousUrl) {
56 const isException = exceptions.find(e => this.previousUrl.startsWith(e))
57 if (!isException) return this.router.navigateByUrl(this.previousUrl)
60 return this.redirectToHomepage()
63 redirectToHomepage (skipLocationChange = false) {
64 if (this.redirectingToHomepage) return
66 this.redirectingToHomepage = true
68 console.log('Redirecting to %s...', this.defaultRoute)
70 this.router.navigateByUrl(this.defaultRoute, { skipLocationChange })
71 .then(() => this.redirectingToHomepage = false)
73 this.redirectingToHomepage = false
76 'Cannot navigate to %s, resetting default route to %s.',
78 RedirectService.INIT_DEFAULT_ROUTE
81 this.defaultRoute = RedirectService.INIT_DEFAULT_ROUTE
82 return this.router.navigateByUrl(this.defaultRoute, { skipLocationChange })