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