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1 | import { Injectable } from '@angular/core' | |
2 | import { NavigationCancel, NavigationEnd, Router } from '@angular/router' | |
3 | import { ServerService } from '../server' | |
4 | ||
5 | @Injectable() | |
6 | export class RedirectService { | |
7 | // Default route could change according to the instance configuration | |
8 | static INIT_DEFAULT_ROUTE = '/videos/trending' | |
9 | static DEFAULT_ROUTE = RedirectService.INIT_DEFAULT_ROUTE | |
10 | static INIT_DEFAULT_TRENDING_ALGORITHM = 'most-viewed' | |
11 | static DEFAULT_TRENDING_ALGORITHM = RedirectService.INIT_DEFAULT_TRENDING_ALGORITHM | |
12 | ||
13 | private previousUrl: string | |
14 | private currentUrl: string | |
15 | ||
16 | private redirectingToHomepage = false | |
17 | ||
18 | constructor ( | |
19 | private router: Router, | |
20 | private serverService: ServerService | |
21 | ) { | |
22 | // The config is first loaded from the cache so try to get the default route | |
23 | const tmpConfig = this.serverService.getTmpConfig() | |
24 | if (tmpConfig?.instance?.defaultClientRoute) { | |
25 | RedirectService.DEFAULT_ROUTE = tmpConfig.instance.defaultClientRoute | |
26 | } | |
27 | if (tmpConfig?.trending?.videos?.algorithms?.default) { | |
28 | RedirectService.DEFAULT_TRENDING_ALGORITHM = tmpConfig.trending.videos.algorithms.default | |
29 | } | |
30 | ||
31 | // Load default route | |
32 | this.serverService.getConfig() | |
33 | .subscribe(config => { | |
34 | const defaultRouteConfig = config.instance.defaultClientRoute | |
35 | const defaultTrendingConfig = config.trending.videos.algorithms.default | |
36 | ||
37 | if (defaultRouteConfig) { | |
38 | RedirectService.DEFAULT_ROUTE = defaultRouteConfig | |
39 | } | |
40 | ||
41 | if (defaultTrendingConfig) { | |
42 | RedirectService.DEFAULT_TRENDING_ALGORITHM = defaultTrendingConfig | |
43 | } | |
44 | }) | |
45 | ||
46 | // Track previous url | |
47 | this.currentUrl = this.router.url | |
48 | router.events.subscribe(event => { | |
49 | if (event instanceof NavigationEnd || event instanceof NavigationCancel) { | |
50 | this.previousUrl = this.currentUrl | |
51 | this.currentUrl = event.url | |
52 | } | |
53 | }) | |
54 | } | |
55 | ||
56 | redirectToPreviousRoute () { | |
57 | const exceptions = [ | |
58 | '/verify-account', | |
59 | '/reset-password' | |
60 | ] | |
61 | ||
62 | if (this.previousUrl) { | |
63 | const isException = exceptions.find(e => this.previousUrl.startsWith(e)) | |
64 | if (!isException) return this.router.navigateByUrl(this.previousUrl) | |
65 | } | |
66 | ||
67 | return this.redirectToHomepage() | |
68 | } | |
69 | ||
70 | redirectToHomepage (skipLocationChange = false) { | |
71 | if (this.redirectingToHomepage) return | |
72 | ||
73 | this.redirectingToHomepage = true | |
74 | ||
75 | console.log('Redirecting to %s...', RedirectService.DEFAULT_ROUTE) | |
76 | ||
77 | this.router.navigateByUrl(RedirectService.DEFAULT_ROUTE, { skipLocationChange }) | |
78 | .then(() => this.redirectingToHomepage = false) | |
79 | .catch(() => { | |
80 | this.redirectingToHomepage = false | |
81 | ||
82 | console.error( | |
83 | 'Cannot navigate to %s, resetting default route to %s.', | |
84 | RedirectService.DEFAULT_ROUTE, | |
85 | RedirectService.INIT_DEFAULT_ROUTE | |
86 | ) | |
87 | ||
88 | RedirectService.DEFAULT_ROUTE = RedirectService.INIT_DEFAULT_ROUTE | |
89 | return this.router.navigateByUrl(RedirectService.DEFAULT_ROUTE, { skipLocationChange }) | |
90 | }) | |
91 | ||
92 | } | |
93 | } |