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1 | import { concat, forkJoin, merge } from 'rxjs' | |
2 | import { Component, Input, OnChanges, OnInit } from '@angular/core' | |
3 | import { AuthService, Notifier, RedirectService } from '@app/core' | |
4 | import { Account, VideoChannel, VideoService } from '@app/shared/shared-main' | |
5 | import { FeedFormat } from '@shared/models' | |
6 | import { UserSubscriptionService } from './user-subscription.service' | |
7 | ||
8 | @Component({ | |
9 | selector: 'my-subscribe-button', | |
10 | templateUrl: './subscribe-button.component.html', | |
11 | styleUrls: [ './subscribe-button.component.scss' ] | |
12 | }) | |
13 | export class SubscribeButtonComponent implements OnInit, OnChanges { | |
14 | /** | |
15 | * SubscribeButtonComponent can be used with a single VideoChannel passed as [VideoChannel], | |
16 | * or with an account and a full list of that account's videoChannels. The latter is intended | |
17 | * to allow mass un/subscription from an account's page, while keeping the channel-centric | |
18 | * subscription model. | |
19 | */ | |
20 | @Input() account: Account | |
21 | @Input() videoChannels: VideoChannel[] | |
22 | @Input() displayFollowers = false | |
23 | @Input() size: 'small' | 'normal' = 'normal' | |
24 | ||
25 | subscribed = new Map<string, boolean>() | |
26 | ||
27 | constructor ( | |
28 | private authService: AuthService, | |
29 | private redirectService: RedirectService, | |
30 | private notifier: Notifier, | |
31 | private userSubscriptionService: UserSubscriptionService, | |
32 | private videoService: VideoService | |
33 | ) { } | |
34 | ||
35 | get handle () { | |
36 | return this.account | |
37 | ? this.account.nameWithHost | |
38 | : this.videoChannel.name + '@' + this.videoChannel.host | |
39 | } | |
40 | ||
41 | get channelHandle () { | |
42 | return this.getChannelHandler(this.videoChannel) | |
43 | } | |
44 | ||
45 | get uri () { | |
46 | return this.account | |
47 | ? this.account.url | |
48 | : this.videoChannels[0].url | |
49 | } | |
50 | ||
51 | get rssUri () { | |
52 | const rssFeed = this.account | |
53 | ? this.videoService | |
54 | .getAccountFeedUrls(this.account.id) | |
55 | .find(i => i.format === FeedFormat.RSS) | |
56 | : this.videoService | |
57 | .getVideoChannelFeedUrls(this.videoChannels[0].id) | |
58 | .find(i => i.format === FeedFormat.RSS) | |
59 | ||
60 | return rssFeed.url | |
61 | } | |
62 | ||
63 | get videoChannel () { | |
64 | return this.videoChannels[0] | |
65 | } | |
66 | ||
67 | get isAllChannelsSubscribed () { | |
68 | return this.subscribeStatus(true).length === this.videoChannels.length | |
69 | } | |
70 | ||
71 | get isAtLeastOneChannelSubscribed () { | |
72 | return this.subscribeStatus(true).length > 0 | |
73 | } | |
74 | ||
75 | get isBigButton () { | |
76 | return this.isUserLoggedIn() && this.videoChannels.length > 1 && this.isAtLeastOneChannelSubscribed | |
77 | } | |
78 | ||
79 | ngOnInit () { | |
80 | this.loadSubscribedStatus() | |
81 | } | |
82 | ||
83 | ngOnChanges () { | |
84 | this.ngOnInit() | |
85 | } | |
86 | ||
87 | subscribe () { | |
88 | if (this.isUserLoggedIn()) { | |
89 | return this.localSubscribe() | |
90 | } | |
91 | ||
92 | return this.gotoLogin() | |
93 | } | |
94 | ||
95 | localSubscribe () { | |
96 | const subscribedStatus = this.subscribeStatus(false) | |
97 | ||
98 | const observableBatch = this.videoChannels | |
99 | .map(videoChannel => this.getChannelHandler(videoChannel)) | |
100 | .filter(handle => subscribedStatus.includes(handle)) | |
101 | .map(handle => this.userSubscriptionService.addSubscription(handle)) | |
102 | ||
103 | forkJoin(observableBatch) | |
104 | .subscribe({ | |
105 | next: () => { | |
106 | this.notifier.success( | |
107 | this.account | |
108 | ? $localize`Subscribed to all current channels of ${this.account.displayName}. You will be notified of all their new videos.` | |
109 | : $localize`Subscribed to ${this.videoChannels[0].displayName}. You will be notified of all their new videos.`, | |
110 | ||
111 | $localize`Subscribed` | |
112 | ) | |
113 | }, | |
114 | ||
115 | error: err => this.notifier.error(err.message) | |
116 | }) | |
117 | } | |
118 | ||
119 | unsubscribe () { | |
120 | if (this.isUserLoggedIn()) { | |
121 | this.localUnsubscribe() | |
122 | } | |
123 | } | |
124 | ||
125 | localUnsubscribe () { | |
126 | const subscribeStatus = this.subscribeStatus(true) | |
127 | ||
128 | const observableBatch = this.videoChannels | |
129 | .map(videoChannel => this.getChannelHandler(videoChannel)) | |
130 | .filter(handle => subscribeStatus.includes(handle)) | |
131 | .map(handle => this.userSubscriptionService.deleteSubscription(handle)) | |
132 | ||
133 | concat(...observableBatch) | |
134 | .subscribe({ | |
135 | complete: () => { | |
136 | this.notifier.success( | |
137 | this.account | |
138 | ? $localize`Unsubscribed from all channels of ${this.account.nameWithHost}` | |
139 | : $localize`Unsubscribed from ${this.videoChannels[0].nameWithHost}`, | |
140 | ||
141 | $localize`Unsubscribed` | |
142 | ) | |
143 | }, | |
144 | ||
145 | error: err => this.notifier.error(err.message) | |
146 | }) | |
147 | } | |
148 | ||
149 | isUserLoggedIn () { | |
150 | return this.authService.isLoggedIn() | |
151 | } | |
152 | ||
153 | gotoLogin () { | |
154 | this.redirectService.redirectToLogin() | |
155 | } | |
156 | ||
157 | subscribeStatus (subscribed: boolean) { | |
158 | const accumulator: string[] = [] | |
159 | for (const [ key, value ] of this.subscribed.entries()) { | |
160 | if (value === subscribed) accumulator.push(key) | |
161 | } | |
162 | ||
163 | return accumulator | |
164 | } | |
165 | ||
166 | isSubscribedToAll () { | |
167 | return Array.from(this.subscribed.values()).every(v => v === true) | |
168 | } | |
169 | ||
170 | isRemoteSubscribeAvailable () { | |
171 | return !this.isUserLoggedIn() | |
172 | } | |
173 | ||
174 | private getChannelHandler (videoChannel: VideoChannel) { | |
175 | return videoChannel.name + '@' + videoChannel.host | |
176 | } | |
177 | ||
178 | private loadSubscribedStatus () { | |
179 | if (!this.isUserLoggedIn()) return | |
180 | ||
181 | for (const videoChannel of this.videoChannels) { | |
182 | const handle = this.getChannelHandler(videoChannel) | |
183 | this.subscribed.set(handle, false) | |
184 | ||
185 | merge( | |
186 | this.userSubscriptionService.listenToSubscriptionCacheChange(handle), | |
187 | this.userSubscriptionService.doesSubscriptionExist(handle) | |
188 | ).subscribe({ | |
189 | next: res => this.subscribed.set(handle, res), | |
190 | ||
191 | error: err => this.notifier.error(err.message) | |
192 | }) | |
193 | } | |
194 | } | |
195 | } |