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1 | import { Component, OnDestroy, OnInit } from '@angular/core' | |
2 | import { ActivatedRoute, Router } from '@angular/router' | |
3 | import { AuthService, Notifier } from '@app/core' | |
4 | import { forkJoin, of, 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 | import { HooksService } from '@app/core/plugins/hooks.service' | |
14 | ||
15 | @Component({ | |
16 | selector: 'my-search', | |
17 | styleUrls: [ './search.component.scss' ], | |
18 | templateUrl: './search.component.html' | |
19 | }) | |
20 | export class SearchComponent implements OnInit, OnDestroy { | |
21 | results: (Video | VideoChannel)[] = [] | |
22 | ||
23 | pagination: ComponentPagination = { | |
24 | currentPage: 1, | |
25 | itemsPerPage: 10, // Only for videos, use another variable for channels | |
26 | totalItems: null | |
27 | } | |
28 | advancedSearch: AdvancedSearch = new AdvancedSearch() | |
29 | isSearchFilterCollapsed = true | |
30 | currentSearch: string | |
31 | ||
32 | private subActivatedRoute: Subscription | |
33 | private isInitialLoad = false // set to false to show the search filters on first arrival | |
34 | private firstSearch = true | |
35 | ||
36 | private channelsPerPage = 2 | |
37 | ||
38 | constructor ( | |
39 | private i18n: I18n, | |
40 | private route: ActivatedRoute, | |
41 | private router: Router, | |
42 | private metaService: MetaService, | |
43 | private notifier: Notifier, | |
44 | private searchService: SearchService, | |
45 | private authService: AuthService, | |
46 | private hooks: HooksService | |
47 | ) { } | |
48 | ||
49 | get user () { | |
50 | return this.authService.getUser() | |
51 | } | |
52 | ||
53 | ngOnInit () { | |
54 | this.subActivatedRoute = this.route.queryParams.subscribe( | |
55 | queryParams => { | |
56 | const querySearch = queryParams['search'] | |
57 | ||
58 | // Search updated, reset filters | |
59 | if (this.currentSearch !== querySearch) { | |
60 | this.resetPagination() | |
61 | this.advancedSearch.reset() | |
62 | ||
63 | this.currentSearch = querySearch || undefined | |
64 | this.updateTitle() | |
65 | } | |
66 | ||
67 | this.advancedSearch = new AdvancedSearch(queryParams) | |
68 | ||
69 | // Don't hide filters if we have some of them AND the user just came on the webpage | |
70 | this.isSearchFilterCollapsed = this.isInitialLoad === false || !this.advancedSearch.containsValues() | |
71 | this.isInitialLoad = false | |
72 | ||
73 | this.search() | |
74 | }, | |
75 | ||
76 | err => this.notifier.error(err.text) | |
77 | ) | |
78 | ||
79 | this.hooks.runAction('action:search.init', 'search') | |
80 | } | |
81 | ||
82 | ngOnDestroy () { | |
83 | if (this.subActivatedRoute) this.subActivatedRoute.unsubscribe() | |
84 | } | |
85 | ||
86 | isVideoChannel (d: VideoChannel | Video): d is VideoChannel { | |
87 | return d instanceof VideoChannel | |
88 | } | |
89 | ||
90 | isVideo (v: VideoChannel | Video): v is Video { | |
91 | return v instanceof Video | |
92 | } | |
93 | ||
94 | isUserLoggedIn () { | |
95 | return this.authService.isLoggedIn() | |
96 | } | |
97 | ||
98 | search () { | |
99 | forkJoin([ | |
100 | this.getVideosObs(), | |
101 | this.getVideoChannelObs() | |
102 | ]) | |
103 | .subscribe( | |
104 | ([ videosResult, videoChannelsResult ]) => { | |
105 | this.results = this.results | |
106 | .concat(videoChannelsResult.data) | |
107 | .concat(videosResult.data) | |
108 | this.pagination.totalItems = videosResult.total + videoChannelsResult.total | |
109 | ||
110 | // Focus on channels if there are no enough videos | |
111 | if (this.firstSearch === true && videosResult.data.length < this.pagination.itemsPerPage) { | |
112 | this.resetPagination() | |
113 | this.firstSearch = false | |
114 | ||
115 | this.channelsPerPage = 10 | |
116 | this.search() | |
117 | } | |
118 | ||
119 | this.firstSearch = false | |
120 | }, | |
121 | ||
122 | err => this.notifier.error(err.message) | |
123 | ) | |
124 | } | |
125 | ||
126 | onNearOfBottom () { | |
127 | // Last page | |
128 | if (this.pagination.totalItems <= (this.pagination.currentPage * this.pagination.itemsPerPage)) return | |
129 | ||
130 | this.pagination.currentPage += 1 | |
131 | this.search() | |
132 | } | |
133 | ||
134 | onFiltered () { | |
135 | this.resetPagination() | |
136 | ||
137 | this.updateUrlFromAdvancedSearch() | |
138 | } | |
139 | ||
140 | numberOfFilters () { | |
141 | return this.advancedSearch.size() | |
142 | } | |
143 | ||
144 | removeVideoFromArray (video: Video) { | |
145 | this.results = this.results.filter(r => !this.isVideo(r) || r.id !== video.id) | |
146 | } | |
147 | ||
148 | private resetPagination () { | |
149 | this.pagination.currentPage = 1 | |
150 | this.pagination.totalItems = null | |
151 | this.channelsPerPage = 2 | |
152 | ||
153 | this.results = [] | |
154 | } | |
155 | ||
156 | private updateTitle () { | |
157 | const suffix = this.currentSearch ? ' ' + this.currentSearch : '' | |
158 | this.metaService.setTitle(this.i18n('Search') + suffix) | |
159 | } | |
160 | ||
161 | private updateUrlFromAdvancedSearch () { | |
162 | const search = this.currentSearch || undefined | |
163 | ||
164 | this.router.navigate([], { | |
165 | relativeTo: this.route, | |
166 | queryParams: Object.assign({}, this.advancedSearch.toUrlObject(), { search }) | |
167 | }) | |
168 | } | |
169 | ||
170 | private getVideosObs () { | |
171 | const params = { | |
172 | search: this.currentSearch, | |
173 | componentPagination: this.pagination, | |
174 | advancedSearch: this.advancedSearch | |
175 | } | |
176 | ||
177 | return this.hooks.wrapObsFun( | |
178 | this.searchService.searchVideos.bind(this.searchService), | |
179 | params, | |
180 | 'search', | |
181 | 'filter:api.search.videos.list.params', | |
182 | 'filter:api.search.videos.list.result' | |
183 | ) | |
184 | } | |
185 | ||
186 | private getVideoChannelObs () { | |
187 | if (!this.currentSearch) return of({ data: [], total: 0 }) | |
188 | ||
189 | const params = { | |
190 | search: this.currentSearch, | |
191 | componentPagination: immutableAssign(this.pagination, { itemsPerPage: this.channelsPerPage }) | |
192 | } | |
193 | ||
194 | return this.hooks.wrapObsFun( | |
195 | this.searchService.searchVideoChannels.bind(this.searchService), | |
196 | params, | |
197 | 'search', | |
198 | 'filter:api.search.video-channels.list.params', | |
199 | 'filter:api.search.video-channels.list.result' | |
200 | ) | |
201 | } | |
202 | } |