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1 | import { Component, OnDestroy, OnInit } from '@angular/core' | |
2 | import { ActivatedRoute, Router } from '@angular/router' | |
3 | import { AuthService, Notifier, ServerService } from '@app/core' | |
4 | import { forkJoin, Subscription } from 'rxjs' | |
5 | import { SearchService } from '@app/search/search.service' | |
6 | import { ComponentPagination } from '@app/shared/rest/component-pagination.model' | |
7 | import { I18n } from '@ngx-translate/i18n-polyfill' | |
8 | import { MetaService } from '@ngx-meta/core' | |
9 | import { AdvancedSearch } from '@app/search/advanced-search.model' | |
10 | import { VideoChannel } from '@app/shared/video-channel/video-channel.model' | |
11 | import { immutableAssign } from '@app/shared/misc/utils' | |
12 | import { Video } from '@app/shared/video/video.model' | |
13 | ||
14 | @Component({ | |
15 | selector: 'my-search', | |
16 | styleUrls: [ './search.component.scss' ], | |
17 | templateUrl: './search.component.html' | |
18 | }) | |
19 | export class SearchComponent implements OnInit, OnDestroy { | |
20 | results: (Video | VideoChannel)[] = [] | |
21 | ||
22 | pagination: ComponentPagination = { | |
23 | currentPage: 1, | |
24 | itemsPerPage: 10, // Only for videos, use another variable for channels | |
25 | totalItems: null | |
26 | } | |
27 | advancedSearch: AdvancedSearch = new AdvancedSearch() | |
28 | isSearchFilterCollapsed = true | |
29 | currentSearch: string | |
30 | ||
31 | private subActivatedRoute: Subscription | |
32 | private isInitialLoad = false // set to false to show the search filters on first arrival | |
33 | private firstSearch = true | |
34 | ||
35 | private channelsPerPage = 2 | |
36 | ||
37 | constructor ( | |
38 | private i18n: I18n, | |
39 | private route: ActivatedRoute, | |
40 | private router: Router, | |
41 | private metaService: MetaService, | |
42 | private notifier: Notifier, | |
43 | private searchService: SearchService, | |
44 | private authService: AuthService, | |
45 | private serverService: ServerService | |
46 | ) { } | |
47 | ||
48 | ngOnInit () { | |
49 | this.subActivatedRoute = this.route.queryParams.subscribe( | |
50 | queryParams => { | |
51 | const querySearch = queryParams['search'] | |
52 | ||
53 | // Search updated, reset filters | |
54 | if (this.currentSearch !== querySearch) { | |
55 | this.resetPagination() | |
56 | this.advancedSearch.reset() | |
57 | ||
58 | this.currentSearch = querySearch || undefined | |
59 | this.updateTitle() | |
60 | } | |
61 | ||
62 | this.advancedSearch = new AdvancedSearch(queryParams) | |
63 | ||
64 | // Don't hide filters if we have some of them AND the user just came on the webpage | |
65 | this.isSearchFilterCollapsed = this.isInitialLoad === false || !this.advancedSearch.containsValues() | |
66 | this.isInitialLoad = false | |
67 | ||
68 | this.search() | |
69 | }, | |
70 | ||
71 | err => this.notifier.error(err.text) | |
72 | ) | |
73 | } | |
74 | ||
75 | ngOnDestroy () { | |
76 | if (this.subActivatedRoute) this.subActivatedRoute.unsubscribe() | |
77 | } | |
78 | ||
79 | isVideoBlur (video: Video) { | |
80 | return video.isVideoNSFWForUser(this.authService.getUser(), this.serverService.getConfig()) | |
81 | } | |
82 | ||
83 | isVideoChannel (d: VideoChannel | Video): d is VideoChannel { | |
84 | return d instanceof VideoChannel | |
85 | } | |
86 | ||
87 | isVideo (v: VideoChannel | Video): v is Video { | |
88 | return v instanceof Video | |
89 | } | |
90 | ||
91 | isUserLoggedIn () { | |
92 | return this.authService.isLoggedIn() | |
93 | } | |
94 | ||
95 | search () { | |
96 | forkJoin([ | |
97 | this.searchService.searchVideos(this.currentSearch, this.pagination, this.advancedSearch), | |
98 | this.searchService.searchVideoChannels(this.currentSearch, immutableAssign(this.pagination, { itemsPerPage: this.channelsPerPage })) | |
99 | ]) | |
100 | .subscribe( | |
101 | ([ videosResult, videoChannelsResult ]) => { | |
102 | this.results = this.results | |
103 | .concat(videoChannelsResult.data) | |
104 | .concat(videosResult.videos) | |
105 | this.pagination.totalItems = videosResult.totalVideos + videoChannelsResult.total | |
106 | ||
107 | // Focus on channels if there are no enough videos | |
108 | if (this.firstSearch === true && videosResult.videos.length < this.pagination.itemsPerPage) { | |
109 | this.resetPagination() | |
110 | this.firstSearch = false | |
111 | ||
112 | this.channelsPerPage = 10 | |
113 | this.search() | |
114 | } | |
115 | ||
116 | this.firstSearch = false | |
117 | }, | |
118 | ||
119 | err => this.notifier.error(err.message) | |
120 | ) | |
121 | ||
122 | } | |
123 | ||
124 | onNearOfBottom () { | |
125 | // Last page | |
126 | if (this.pagination.totalItems <= (this.pagination.currentPage * this.pagination.itemsPerPage)) return | |
127 | ||
128 | this.pagination.currentPage += 1 | |
129 | this.search() | |
130 | } | |
131 | ||
132 | onFiltered () { | |
133 | this.resetPagination() | |
134 | ||
135 | this.updateUrlFromAdvancedSearch() | |
136 | } | |
137 | ||
138 | numberOfFilters () { | |
139 | return this.advancedSearch.size() | |
140 | } | |
141 | ||
142 | private resetPagination () { | |
143 | this.pagination.currentPage = 1 | |
144 | this.pagination.totalItems = null | |
145 | this.channelsPerPage = 2 | |
146 | ||
147 | this.results = [] | |
148 | } | |
149 | ||
150 | private updateTitle () { | |
151 | const suffix = this.currentSearch ? ' ' + this.currentSearch : '' | |
152 | this.metaService.setTitle(this.i18n('Search') + suffix) | |
153 | } | |
154 | ||
155 | private updateUrlFromAdvancedSearch () { | |
156 | const search = this.currentSearch || undefined | |
157 | ||
158 | this.router.navigate([], { | |
159 | relativeTo: this.route, | |
160 | queryParams: Object.assign({}, this.advancedSearch.toUrlObject(), { search }) | |
161 | }) | |
162 | } | |
163 | } |